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Pongkorpsakol P, Yimnual C, Satianrapapong W, Worakajit N, Kaewin S, Saetang P, Rukachaisirikul V, Muanprasat C. Discovery of Fungus-Derived Nornidulin as a Novel TMEM16A Inhibitor: A Potential Therapy to Inhibit Mucus Secretion in Asthma. J Exp Pharmacol 2023; 15:449-466. [PMID: 38026233 PMCID: PMC10657771 DOI: 10.2147/jep.s427594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Inhibition of Ca2+-activated transmembrane protein 16A (TMEM16A) Cl- channels has been proposed to alleviate mucus secretion in asthma. In this study, we identified a novel class of TMEM16A inhibitors from natural sources in airway epithelial Calu-3 cells and determine anti-asthmatic efficacy of the most potent candidate in a mouse model of asthma. Methods For electrophysiological analyses, IL-4-primed Calu-3 cell monolayers were mounted in Ussing chamber and treated with various fungus-derived depsidones prior to the addition of UTP, ionomycin, thapsigargin, or Eact to stimulate TMEM16A Cl- current. Ca2+-induced mucus secretion in Calu-3 cell monolayers was assessed by determining MUC5AC protein remaining in the cells using immunofluorescence staining. OVA-induced female BALB/c mice was used as an animal model of asthma. After the course of induction, cellular and mucus components in bronchoalveolar lavage were analyzed. Lungs were fixed and undergone with H&E and PAS staining for the evaluation of airway inflammation and mucus production, respectively. Results The screening of fungus-derived depsidones revealed that nornidulin completely abolished the UTP-activated TMEM16A current in Calu-3 cell monolayers with the IC50 and a maximal effect being at ~0.8 µM and 10 µM, respectively. Neither cell viability nor barrier function was affected by nornidulin. Mechanistically, nornidulin (10 µM) suppressed Cl- currents induced by ionomycin (a Ca2+-specific ionophore), thapsigargin (an inhibitor of the endoplasmic reticulum Ca2+ ATPase), and Eact (a putative TMEM16A activator) without interfering with intracellular Ca2+ ([Ca2+]i) levels. These results suggest that nornidulin exerts its effect without changing [Ca2+]i, possibly through direct effect on TMEM16A. Interestingly, nornidulin (at 10 µM) reduced Ca2+-dependent mucus release in the Calu-3 cell monolayers. In addition, nornidulin (20 mg/kg) inhibited bronchoalveolar mucus secretion without impeding airway inflammation in ovalbumin-induced asthmatic mice. Discussion and Conclusion Our study revealed that nornidulin is a novel TMEM16A inhibitor that suppresses mucus secretion without compromising immunologic activity. Further development of nornidulin may provide a new remedy for asthma or other diseases associated with allergic mucus hypersecretion without causing opportunistic infections.
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Affiliation(s)
- Pawin Pongkorpsakol
- Princess Srisavangavadhana College of Medicine, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Chantapol Yimnual
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | | | - Nichakorn Worakajit
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suchada Kaewin
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Praphatsorn Saetang
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
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2
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Nuansri S, Rukachaisirikul V, Muanprasat C, Phongpaichit S, Preedanon S, Sakayaroj J. Furanone, morpholinone and tetrahydrofuran derivatives from the marine-derived fungus Talaromyces sp. PSU-MF07. Nat Prod Res 2023; 37:3434-3442. [PMID: 35609143 DOI: 10.1080/14786419.2022.2079124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
Abstract
Three new compounds including one furanone, one morpholinone and one tetrahydrofuran together with three known compounds were isolated from the broth extract of the marine-derived fungus Talaromyces sp. PSU-MF07. The structures of the isolated compounds were determined on the basis of spectroscopic methods. The relative configuration was assigned using NOEDIFF data whereas the absolute configurations were established by Mosher's method, specific rotations and electronic circular dichroism (ECD) data. Some isolated compounds were tested for antimicrobial activity. Only known penioxalicin exhibited weak antibacterial activity against methicillin-resistant Staphylococcus aureus SK1 with an MIC value of 200 µg/mL.
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Affiliation(s)
- Sucheewin Nuansri
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakarn, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Pathum Thani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Nakhonsithammarat, Thailand
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3
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Thongpat K, Holasut P, Ontawong A, Inchai J, Duangjai A, Rukachaisirikul V, Vaddhanaphuti CS, Tadpetch K. Synthesis and potential antidiabetic and lipid-lowering activities of putative asperidine B and its desmethyl analogue. Bioorg Med Chem Lett 2023; 93:129437. [PMID: 37549851 DOI: 10.1016/j.bmcl.2023.129437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/29/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Putative asperidine B is an unnatural 2,6-disubstituted piperidin-3-ol and a structural isomer of (+)-preussin, a well-known pyrrolidin-3-ol alkaloid. This work reports the first enantioselective synthesis of putative asperidine B and its desmethyl analogue via a chiron approach starting from d-isoascorbic acid as well as evaluation of their free-radical scavenging, antidiabetic, and anti-hyperlipidemic activities. Both putative asperidine B and its desmethyl analogue markedly reduced the total reactive oxygen species (ROS) without cytotoxicity in hepatocellular carcinoma (HepG2) cells. The desmethyl analogue was a potent inducer for two antioxidant gene expression, glutathione peroxidase and superoxide dismutase, whereas putative asperidine B only induced superoxide dismutase. In addition, putative asperidine B exerted potent antidiabetic activity via α-glucosidase inhibition (IC50 = 0.143 ± 0.001 mg/mL) comparable to that of acarbose, an antidiabetic drug. Consistent with the parent asperidine B (preussin), both putative asperidine B and its desmethyl analogue inhibited cholesterol absorption in the intestinal Caco-2 cells. These novel and promising antioxidant, antidiabetic, and lipid-lowering effects of piperidin-3-ols could offer a starting point for this class of compounds for obesity and diabetic drug discovery.
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Affiliation(s)
- Kittisak Thongpat
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Pannita Holasut
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Atcharaporn Ontawong
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Jakkapong Inchai
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Acharaporn Duangjai
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Chutima S Vaddhanaphuti
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kwanruthai Tadpetch
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
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4
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Ningsih BNS, Rukachaisirikul V, Phongpaichit S, Muanprasat C, Preedanon S, Sakayaroj J, Intayot R, Jungsuttiwong S. Talarostatin, a vermistatin derivative from the soil-derived fungus Talaromyces thailandensis PSU-SPSF059. Nat Prod Res 2023:1-8. [PMID: 36919631 DOI: 10.1080/14786419.2023.2188209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
The soil-derived fungus Talaromyces thailandensis PSU-SPSF059 produced one new vermistatin derivative, talarostatin, and seven known compounds including two vermistatins, two chrodrimanins, two diphenyl ethers and one penicillide derivative. Extensive spectroscopic analysis was performed to identify their structures. The absolute configuration of talarostatin was determined by comparing the experimental and calculated electronic circular dichroism data. The antimicrobial and cytotoxic activities of the isolated secondary metabolites were also evaluated.
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Affiliation(s)
- Baiq Nila Sari Ningsih
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand.,Department of Chemistry, Faculty of Mathematics and Natural Science, University of Mataram, Mataram, West Nusa Tenggara, Indonesia
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakarn, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Klong Luang, Pathum Thani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat, Thailand
| | - Ratchadaree Intayot
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Siriporn Jungsuttiwong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand
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5
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Tadpetch K, Vijitphan P, Kaewsen S, Thiraporn A, Rukachaisirikul V. Direct synthesis of tetrahydropyran-4-ones via O 3ReOH-catalyzed Prins cyclization of 3-chlorohomoallylic alcohols. Org Biomol Chem 2022; 20:9618-9624. [PMID: 36420694 DOI: 10.1039/d2ob01941h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A new variation of Prins cyclization to directly and stereoselectively synthesize cis-2,6-disubstituted tetrahydropyran-4-ones from 3-chlorohomoallylic alcohols and aldehydes catalyzed by perrhenic acid is reported. The reaction is generally compatible with a range of aliphatic and aromatic aldehydes and 24 examples of tetrahydropyran-4-one products have been prepared in moderate to good yields. This methodology highlights the use of simple starting materials and commercially available aqueous perrhenic acid as a catalyst for Prins cyclization reactions to directly synthesize 2,6-disubstituted tetrahydropyran-4-ones.
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Affiliation(s)
- Kwanruthai Tadpetch
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
| | - Pongsit Vijitphan
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
| | - Sasiwan Kaewsen
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
| | - Aticha Thiraporn
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
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6
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Ontawong A, Duangjai A, Sukpondma Y, Tadpetch K, Muanprasat C, Rukachaisirikul V, Inchai J, Vaddhanaphuti CS. Cholesterol-Lowering Effects of Asperidine B, a Pyrrolidine Derivative from the Soil-Derived Fungus Aspergillus sclerotiorum PSU-RSPG178: A Potential Cholesterol Absorption Inhibitor. Pharmaceuticals (Basel) 2022; 15:ph15080955. [PMID: 36015103 PMCID: PMC9414821 DOI: 10.3390/ph15080955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/21/2022] [Accepted: 07/29/2022] [Indexed: 11/30/2022] Open
Abstract
Isolated secondary metabolites asperidine B (preussin) and asperidine C, produced by the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178, were found to exhibit inhibitory effects against 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase and oxidative stress in an in vitro assay. Whether or not the known pyrrolidine asperidine B and the recently isolated piperidine asperidine C have lipid-lowering effects remains unknown. Thus, this study aimed to investigate the hypocholesterolemic effects of asperidines B and C and identify the mechanisms involved in using in vitro, ex vivo, and in vivo models. The results show that both compounds interfered with cholesterol micelle formation by increasing bile acid binding capacity, similar to the action of the bile acid sequestrant drug cholestyramine. However, only asperidine B, but not asperidine C, was found to inhibit cholesterol uptake in Caco-2 cells by up-regulating LXRα without changing cholesterol transporter NPC1L1 protein expression. Likewise, reduced cholesterol absorption via asperidine-B-mediated activation of LXRα was also observed in isolated rat jejunal loops. Asperidine B consistently decreases plasma cholesterol absorption, similar to the effect of ezetimibe in rats. Therefore, asperidine B, the pyrrolidine derivative, has therapeutic potential to be developed into a type of cholesterol absorption inhibitor for the treatment of hypercholesterolemia.
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Affiliation(s)
- Atcharaporn Ontawong
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand; (A.O.); (A.D.)
| | - Acharaporn Duangjai
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand; (A.O.); (A.D.)
| | - Yaowapa Sukpondma
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand; (Y.S.); (K.T.); (V.R.)
| | - Kwanruthai Tadpetch
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand; (Y.S.); (K.T.); (V.R.)
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10540, Thailand;
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand; (Y.S.); (K.T.); (V.R.)
| | - Jakkapong Inchai
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Chutima S. Vaddhanaphuti
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
- Correspondence: ; Tel.:+66-533-935-362
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7
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Yimnual C, Worakajit N, Kaewin S, Rukachaisirikul V, Muanprasat C. Effects of Fungus‐Derived Compound N9 on Airway Mucus Secretion:
In Vitro
and
In Vivo
Studies. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r1976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chantapol Yimnual
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut PrakanBang PhliThailand
| | - Nichakorn Worakajit
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut PrakanBang PhliThailand
| | - Suchada Kaewin
- PhysiologyFaculty of science, Mahidol UniversityRajathevi
| | | | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut PrakanBang PhliThailand
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8
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Noitem R, Pongkorpsakol P, Changsen C, Rukachaisirikul V, Muanprasat C. Identification of Fungus‐derived Compounds as a Novel CFTR inhibitor: Mechanism and Potential Anti‐diarrheal Application. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rattikarn Noitem
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol UniversityBangkok
| | - Pawin Pongkorpsakol
- Princess Srisavangavadhana College of Medicine, Chulabhorn Royal AcademyBangkok
| | | | | | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol UniversitySamut Prakan
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9
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Yaosanit W, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J. Sesquiterpenes from the soil-derived fungus Trichoderma citrinoviride PSU-SPSF346. Beilstein J Org Chem 2022; 18:479-485. [PMID: 35558648 PMCID: PMC9062651 DOI: 10.3762/bjoc.18.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/11/2022] [Indexed: 11/23/2022] Open
Abstract
Two new sesquiterpenes, trichocitrinovirenes A (1) and B (2), and five known compounds including four structurally related sesquiterpenes and one γ-lactone were isolated from the soil-derived fungus Trichoderma citrinoviride PSU-SPSF346. The structures were identified by analysis of their spectroscopic data. The relative configuration was assigned based on NOEDIFF data. The absolute configuration of compound 1 was established according to specific rotations and ECD data while that of compound 2 was proposed based on biosynthetic considerations. Compound 2 possesses a rare bicyclic sesquiterpene skeleton. The antimicrobial and cytotoxic activities of the isolated compounds were evaluated.
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Affiliation(s)
- Wiriya Yaosanit
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat 80160, Thailand
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10
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Saebang Y, Kaeobamrung J, Rukachaisirikul V. Synthesis of eleven-membered cyclic urea-fused quinazolinones. Synlett 2022. [DOI: 10.1055/a-1793-1321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Straightforward synthesis of quinazolinones having N-fused medium-sized ring urea was accomplished. Key intermediates were tert-butyl(2-(4-oxo-2-(4-oxopentyl)quinazolin-3(4H)-yl)ethyl)carbamates derived from copper-catalyzed domino reaction of tert-butyl(2-(2-iodobenzamido)ethyl)carbamates and cyclic enaminones. Steric hindrance of cyclic enaminones played important role in the formation of quinazolinone ring. The eleven-membered ring urea moiety was readily achieved by direct cyclization using 1,1’-carbonyldiimidazole (CDI) of diamino intermediate generated by readily reductive amination and deprotection of tert-butyl(2-(4-oxo-2-(4-oxopentyl)quinazolin-3(4H)-yl)ethyl)carbamates.
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11
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Ningsih BNS, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J, Muanprasat C. A nonadride derivative from the marine-derived fungus Aspergillus chevalieri PSU-AMF79. Nat Prod Res 2022:1-8. [PMID: 35168452 DOI: 10.1080/14786419.2022.2039651] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
One new nonadride enantiomer, ent-epiheveadride, along with five known dioxopiperazine derivatives were isolated from the marine-derived fungus Aspergillus chevalieri PSU-AMF79. Their structures were identified by extensive spectroscopic analysis. The absolute configuration of ent-epiheveadride was determined by comparison of the specific rotation and electronic circular dichroism data with those of related known compounds. It exhibited antifungal activity against Cryptococcus neoformans ATCC90113 flucytosine-resistant and Candida albicans NCPF3153 with the MIC values of 128 and 200 µg/mL, respectively. In addition, the known L-alanyl-L-tryptophan anhydride displayed TMEM16A inhibitory activity with 65.0% inhibition at a concentration of 5 µg/mL.
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Affiliation(s)
- Baiq Nila Sari Ningsih
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Pathum Thani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Nakhonsithammarat, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakarn, Thailand
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12
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Nuansri S, Rukachaisirikul V, Rungwirain N, Kaewin S, Yimnual C, Phongpaichit S, Preedanon S, Sakayaroj J, Muanprasat C. α-Pyrone and decalin derivatives from the marine-derived fungus Trichoderma harzianum PSU-MF79. Nat Prod Res 2021; 36:5462-5469. [PMID: 34894887 DOI: 10.1080/14786419.2021.2015593] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Two new compounds, one α-pyrone (trichoharzianone) and one decalin (trichoharzianin), along with eight known compounds including three decalins, two δ-lactones, two carboxylic acids and one isochroman were isolated from the marine-derived fungus Trichoderma harzianum PSU-MF79. The structures were determined by spectroscopic methods. The relative configuration of trichoharzianin was assigned based on NOEDIFF data and coupling constants whereas the absolute configurations were established by comparison of electronic circular dichroism data with those of the co-metabolites. Known (-)-massoia lactone exhibited mild antifungal activity against Cryptococcus neoformans ATCC90113 flucytosine-resistant, Candida albicans ATCC90028 and C. albicans NCPF3153 with MIC values of 128, 200 and 200 µg/mL, respectively, and weak cytotoxic activity against HCT-116 and MCF-7 cell lines with the respective IC50 values of 17 and 32 µM. In addition, it was noncytotoxic against noncancerous Vero cells with an IC50 value of >100 µM.
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Affiliation(s)
- Sucheewin Nuansri
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Narate Rungwirain
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Suchada Kaewin
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn, Thailand
| | - Chantapol Yimnual
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn, Thailand
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13
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Duangjai A, Rukachaisirikul V, Sukpondma Y, Srimaroeng C, Muanprasat C. Antispasmodic Effect of Asperidine B, a Pyrrolidine Derivative, through Inhibition of L-Type Ca 2+ Channel in Rat Ileal Smooth Muscle. Molecules 2021; 26:5492. [PMID: 34576962 PMCID: PMC8470553 DOI: 10.3390/molecules26185492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/29/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022] Open
Abstract
Antispasmodic agents are used for modulating gastrointestinal motility. Several compounds isolated from terrestrial plants have antispasmodic properties. This study aimed to explore the inhibitory effect of the pyrrolidine derivative, asperidine B, isolated from the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178, on spasmodic activity. Isolated rat ileum was set up in an organ bath. The contractile responses of asperidine B (0.3 to 30 µM) on potassium chloride and acetylcholine-induced contractions were recorded. To investigate its antispasmodic mechanism, CaCl2, acetylcholine, Nω-nitro-l-arginine methyl ester (l-NAME), nifedipine, methylene blue and tetraethylammonium chloride (TEA) were tested in the absence or in the presence of asperidine B. Cumulative concentrations of asperidine B reduced the ileal contraction by ~37%. The calcium chloride and acetylcholine-induced ileal contraction was suppressed by asperidine B. The effects of asperidine B combined with nifedipine, atropine or TEA were similar to those treated with nifedipine, atropine or TEA, respectively. In contrast, in the presence of l-NAME and methylene blue, the antispasmodic effect of asperidine B was unaltered. These results suggest that the antispasmodic property of asperidine B is probably due to the blockage of the L-type Ca2+ channel and is associated with K+ channels and muscarinic receptor, possibly by affecting non-selective cation channels and/or releasing intracellular calcium.
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Affiliation(s)
- Acharaporn Duangjai
- Unit of Excellence in Research and Product Development of Coffee, Division of Physiology, School of Medical Sciences, University of Phayao, Mueang Phayao, Phayao 56000, Thailand
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Mueang Phayao, Phayao 56000, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; (V.R.); (Y.S.)
| | - Yaowapa Sukpondma
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; (V.R.); (Y.S.)
| | - Chutima Srimaroeng
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Mueang Chiang Mai, Chiang Mai 50200, Thailand;
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangphli, Samutprakarn 10540, Thailand;
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14
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Yimnual C, Satitsri S, Ningsih BNS, Rukachaisirikul V, Muanprasat C. A fungus-derived purpactin A as an inhibitor of TMEM16A chloride channels and mucin secretion in airway epithelial cells. Biomed Pharmacother 2021; 139:111583. [PMID: 33901875 DOI: 10.1016/j.biopha.2021.111583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/20/2022] Open
Abstract
TMEM16A is a Ca2+-activated Cl- channel involved in mucus secretion in inflamed airways and proposed as a drug target for diseases associated with mucus hypersecretion including asthma. This study aimed to identify novel inhibitors of TMEM16A-mediated Cl- secretion in airway epithelial cells from a collection of compounds isolated from fungi indigenous in Thailand and examine its potential utility in mitigating airway mucus secretion using Calu-3 cells as a study model. Screening of > 400 fungal metabolites revealed purpactin A isolated from a soil-derived fungus Penicillium aculeatum PSU-RSPG105 as an inhibitor of TMEM16A-mediated Cl- transport with an IC50 value of ~2 µM. A consistent inhibitory effect of purpactin A on TMEM16A were observed regardless of TMEM16A activators or in the presence of an inhibitor of Ca2+/calmodulin-dependent protein kinase II (CaMKII), a negative regulator of TMEM16A. In addition, purpactin A did not affect cell viability, epithelial barrier integrity and activities of membrane transport proteins essential for maintaining airway hydration including CFTR Cl- channels and apical BK K+ channels. Intriguingly, purpactin A prevented a Ca2+-induced mucin release in cytokine-treated airway cells. Taken together, purpactin A represents the first class of TMEM16A inhibitor derived from fungus, which may be beneficial for the treatment of diseases associated with mucus hypersecretion.
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Affiliation(s)
- Chantapol Yimnual
- Department of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand; Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn 10540, Thailand
| | - Saravut Satitsri
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn 10540, Thailand
| | - Baiq Nila Sari Ningsih
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Phli, Samut Prakarn 10540, Thailand.
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15
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Saetang P, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J, Hadsadee S, Jungsuttiwong S. Antibacterial and Antifungal Polyketides from the Fungus Aspergillus unguis PSU-MF16. J Nat Prod 2021; 84:1498-1506. [PMID: 33861594 DOI: 10.1021/acs.jnatprod.0c01308] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Seven new polyketides including a phenol (1), two diphenyl ethers (2 and 3), two depsidones (4 and 5), and two phthalides (6 and 7) were isolated from the fungus Aspergillus unguis PSU-MF16 along with 27 known compounds. Their structures were determined by extensive spectroscopic analysis. The absolute configurations of 1 and 4-7 were established using comparative analyses of calculated and experimental ECD spectra. Among the new metabolites, 2 exhibited the best antimicrobial activity against Staphylococcus aureus, methicillin-resistant S. aureus, and Microsporum gypseum with equal MIC values of 16 μg/mL. In addition, known emeguisin A displayed potent antimicrobial activity against S. aureus, methicillin-resistant S. aureus, and Cryptococcus neoformans with equal MIC values of 0.5 μg/mL, compared with the standard drugs, vancomycin and amphotericin B. The structure-activity relationship study of the isolated compounds for antimicrobial activity is discussed.
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Affiliation(s)
- Praphatsorn Saetang
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat 80161, Thailand
| | - Sarinya Hadsadee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Siriporn Jungsuttiwong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
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16
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Ningsih BNS, Rukachaisirikul V, Pansrinun S, Phongpaichit S, Preedanon S, Sakayaroj J. New aromatic polyketides from the marine-derived fungus Pseudopithomyces maydicus PSU-AMF350 and their antimicrobial activity. Nat Prod Res 2021; 36:4982-4989. [PMID: 33902349 DOI: 10.1080/14786419.2021.1915309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Four new aromatic polyketides including two diphenyl ethers (pseudopithoethers A-B, 1-2), one benzofuranone (pseudopithonone, 3) and one xanthone (pseudopithoxanthone, 4), along with two known compounds (5-6) and one new naturally occurring hydroquinone (α,2,5-trihydroxyacetophenone, 7) were isolated from the marine-derived fungus Pseudopithomyces maydicus PSU-AMF350. Their structures were identified by analysis of spectroscopic data. All isolated compounds were tested for antimicrobial activity. Only compound 7 displayed antibacterial activity against methicillin-resistant Staphylococcus aureus with the MIC value of 128 µg/mL and against S. aureus, Acinetobacter baumannii NPRC005 and A. baumannii NPRC007 with the same MIC value of 200 µg/mL.
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Affiliation(s)
- Baiq Nila Sari Ningsih
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Supansa Pansrinun
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat 80161, Thailand
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17
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Sommart U, Rukachaisirikul V, Saithong S, Phongpaichit S, Sakayaroj J, Preedanon S, Chainok K, Khunrong T. 2-Oxaspiro[4.5]decane and α-pyrenocine derivatives from the endophytic fungus Roussoella sp. PSU-H51. Nat Prod Res 2021; 36:4911-4920. [PMID: 33853446 DOI: 10.1080/14786419.2021.1910692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
One new 2-oxaspiro[4.5]decane, roussoellide, and one new α-pyrenocine, 2',3'-dihydropyrenocine A, together with nine known compounds including known arthropsolide A, and pyrenocines A and E, were obtained from the culture broth of the endophytic fungus Roussoella sp. Their structures were determined using spectroscopic data. The absolute configuration of known arthropsolide A was assigned on the basis of X-ray diffraction data using Cu Kα radiation. Known pyrenocine A displayed weak cytotoxic activity against breast cancer (MCF-7) cells with an IC50 value of 27.1 µM and weak antifungal activity against Microsporum gypseum SH-MU-4 with an MIC value of 615.2 µM.
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Affiliation(s)
- Ubonta Sommart
- Faculty of Science and Technology, Suratthani Rajabhat University, Surat Thani, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Saowanit Saithong
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Souwalak Phongpaichit
- Faculty of Science, Division of Biological Science, Prince of Songkla University, Hat Yai, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Nakhonsithammarat, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Thailand
| | - Kittipong Chainok
- Faculty of Science and Technology, Material and Textile Technology, Thammasat University, Khlong Luang, Thailand
| | - Teerayut Khunrong
- Scientific Laboratory & Equipment Center, Prince of Songkla University, Surat Thani, Thailand
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18
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Arunpanichlert J, Rukachaisirikul V, Chaiwarin T, Tantirungrotechai Y, Khamthong N, Phongpaichit S, Liamthong S, Sakayaroj J. Dimeric γ-lactone derivatives from the soil-derived fungus Lasiodiplodia theobromae NSTRU-PN1.4. Nat Prod Res 2020; 36:1948-1958. [PMID: 33153327 DOI: 10.1080/14786419.2020.1837821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Investigation of the soil-derived fungus Lasiodiplodia theobromae NSTRU-PN1.4 resulted in the isolation of five dimeric γ-lactones including two new botryosphaerilactones D and E (4 and 5) and three known structurally related analogoues (1-3) along with seven known compounds. Their structures were elucidated by extensive spectroscopic analysis. The absolute configuration of 1-5 was determined by comparison of the ECD data with those of the structurally related monomeric γ-lactones. For biological evaluation, this is the first report on antifungal activity of the known (3 R,4R)-4-acetyl-3-methyl-2(3H)-dihydrofuranone which displayed weak antifungal activity against Cryptococcus neoformans with an MIC value of 200 µg/mL.
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Affiliation(s)
- Jiraporn Arunpanichlert
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Titima Chaiwarin
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Yuthana Tantirungrotechai
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand
| | | | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Sumalee Liamthong
- Department of Biology, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat, Thailand
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19
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Sangkanu S, Rukachaisirikul V, Suriyachadkun C, Phongpaichit S. Antifungal activity of marine-derived actinomycetes against Talaromyces marneffei. J Appl Microbiol 2020; 130:1508-1522. [PMID: 33010096 DOI: 10.1111/jam.14877] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/11/2020] [Accepted: 09/24/2020] [Indexed: 01/27/2023]
Abstract
AIMS This study aimed to isolate actinomycetes from marine environments and examine their antifungal activity against Talaromyces marneffei both in vitro and in vivo. METHODS AND RESULTS Nineteen out of 101 actinomycete extracts were active and further determined for their minimum inhibitory concentrations (MIC). Three extracts of AMA50 that isolated from sediment showed strong antifungal activity against T. marneffei yeast (MICs ≤0·03-0·25 µg ml-1 ) and mould (MICs 0·5-16 µg ml-1 ) forms. The hexane extract from the cells of AMA50 (AMA50CH) exhibited the best activity against both the forms (MIC ≤ 1 µg ml-1 ). Three extracts from AMA50 killed the melanized yeast cells at 0·5 µg ml-1 . The AMA50CH was further tested for protective effects in Caenorhabditis elegans model. At concentrations of 1-8 µg ml-1 , the AMA50CH prolonged survival of T. marneffei-infected C. elegans with a 60-70% survival rate. The composition of AMA50CH was determined by gas chromatography-mass spectrometry. The major components were n-hexadecanoic acid, tetradecanoic acid and pentadecanoic acid. Sequencing analysis revealed that isolate AMA50 belonged to the genus Streptomyces. CONCLUSIONS The AMA50CH from Streptomyces sp. AMA50 was the most effective extract against T. marneffei. SIGNIFICANCE AND IMPACT OF THE STUDY Talaromyces marneffei is one of the most important thermally dimorphic pathogenic fungi. These results indicated the potency of marine-derived actinomycete extracts against T. marneffei both in vitro and in vivo.
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Affiliation(s)
- S Sangkanu
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - V Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - C Suriyachadkun
- BIOTEC Culture Collection, Biodiversity and Biotechnological Resource Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Khlong Luang, Pathum Thani, Thailand
| | - S Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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20
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Duangjan C, Rukachaisirikul V, Kaeobamrung J. Synthesis of imidazolidin-2-ones via the cascade reactions of α-chloroaldoxime O-methanesulfonates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Iewkittayakorn J, Kuechoo K, Sukpondma Y, Rukachaisirikul V, Phongpaichit S, Chotigeat W. Lovastatin Production by Aspergillus sclerotiorum Using Agricultural Waste. Food Technol Biotechnol 2020; 58:230-236. [PMID: 32831575 PMCID: PMC7416121 DOI: 10.17113/ftb.58.02.20.6223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Research background Lovastatin is a well-known drug used to reduce hypercholesterolaemia. However, the cost of lovastatin production is still high. Therefore, alternative low-cost carbon sources for the production of lovastatin are desirable. Experimental approach Four different agricultural wastes, namely corn trunks, rice husks, wild sugarcane, and soya bean sludge, were tested separately as substrates to produce lovastatin using a new fungal strain, Aspergillus sclerotiorum PSU-RSPG 178, under both submerged and solid-state fermentation (SSF). Results and conclusions Of these substrates and cultivation systems, soya bean sludge gave the highest lovastatin yield on dry mass basis of 0.04 mg/g after 14 days of SSF at 25 °C. Therefore, the soya bean sludge was separately supplemented with glucose, wheat flour, trace elements, palm oil, urea and molasses. The addition of the palm oil enhanced the lovastatin yield to 0.99 mg/g. In addition, the optimum conditions, which gave a lovastatin yield of (20±2) mg/g after 18 days of SSF, were soya bean sludge containing 80% moisture (dry basis) at a ratio of soya bean sludge (g) to mycelial agar plugs of 1:4, and a ratio of soya bean sludge (g) to palm oil (mL) of 1:2. Besides, the lovastatin yields obtained from SSF using fresh or dry soya bean sludge were not significantly different. Novelty and scientific contribution We conclude that A. sclerotiorum PSU-RSPG 178 has a good potential as an alternative strain for producing lovastatin using soya bean sludge supplemented with palm oil as a carbon source.
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Affiliation(s)
- Jutarut Iewkittayakorn
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
| | - Kannika Kuechoo
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
| | - Yaowapa Sukpondma
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
| | - Wilaiwan Chotigeat
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand.,Center for Genomics and Bioinformatics Research, Faculty of Science, Prince of Songkla University, Hat Yai, 90112 Songkhla, Thailand
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22
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23
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Boonyaketgoson S, Rukachaisirikul V, Phongpaichit S, Trisuwan K. Limonoids and carbazole alkaloids from the twigs of Chalcas siamensis Tanaka. Nat Prod Res 2020; 36:122-129. [PMID: 32449390 DOI: 10.1080/14786419.2020.1768084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
One new limonoid, named siamensinolide (1), together with two known limonoids (2 and 3) and eight carbazole alkaloids (4-11) were isolated from the twigs of Chalcas siamensis Tanaka. Their structures were elucidated by spectroscopic methods, mainly 1D and 2D NMR spectroscopy. O-methylclausenolide (2) displayed strong cytotoxicity against A2780 cell lines with the IC50 value of 9.2 µM, while clausenolide (3) exhibited strong antibacterial activity against methicillin-resistant Staphylococcus aureus with the MIC value of 0.5 µg/mL.
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Affiliation(s)
- Sirada Boonyaketgoson
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.,Graduate School, Chiang Mai University, Chiang Mai, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Kongkiat Trisuwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai, Thailand
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24
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Helaly SE, Kuephadungphan W, Phainuphong P, Ibrahim MAA, Tasanathai K, Mongkolsamrit S, Luangsa-Ard JJ, Phongpaichit S, Rukachaisirikul V, Stadler M. Pigmentosins from Gibellula sp. as antibiofilm agents and a new glycosylated asperfuran from Cordyceps javanica. Beilstein J Org Chem 2019; 15:2968-2981. [PMID: 31921369 PMCID: PMC6941404 DOI: 10.3762/bjoc.15.293] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/25/2019] [Indexed: 12/16/2022] Open
Abstract
In the course of our exploration of the Thai invertebrate-pathogenic fungi for biologically active metabolites, pigmentosin A (1) and a new bis(naphtho-α-pyrone) derivative, pigmentosin B (2), were isolated from the spider-associated fungus Gibellula sp. Furthermore, a new glycosylated asperfuran 3, together with one new (6) and two known (4 and 5) cyclodepsipeptides, was isolated from Cordyceps javanica. The pigmentosins 1 and 2 showed to be active against biofilm formation of Staphylococcus aureus DSM1104. The lack of toxicity toward the studied microorganism and cell lines of pigmentosin B (2), as well as the antimicrobial effect of pigmentosin A (1), made them good candidates for further development for use in combination therapy of infections involving biofilm-forming S. aureus. The structure elucidation and determination of the absolute configuration were accomplished using a combination of spectroscopy, including 1D and 2D NMR, HRMS, Mosher ester analysis, and comparison of calculated/experimental ECD spectra. A chemotaxonomic investigation of the secondary metabolite profiles using analytical HPLC coupled with diode array detection and mass spectrometry (HPLC–DAD–MS) revealed that the production of pigmentosin B (2) was apparently specific for Gibellula sp., while the glycoasperfuran 3 was specific for C. javanica.
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Affiliation(s)
- Soleiman E Helaly
- Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany.,Department of Chemistry, Faculty of Science, Aswan University, Aswan 81528, Egypt
| | - Wilawan Kuephadungphan
- Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany.,Department of Microbiology, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand
| | - Patima Phainuphong
- Faculty of Science and Technology, Prince of Naradhiwas University, Khokkhian, Mueang, Narathiwat 96000, Thailand
| | - Mahmoud A A Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, 61519, Egypt
| | - Kanoksri Tasanathai
- National Centre for Genetic Engineering and Biotechnology (BIOTEC), NSTDA, 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani 12120, Thailand
| | - Suchada Mongkolsamrit
- National Centre for Genetic Engineering and Biotechnology (BIOTEC), NSTDA, 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani 12120, Thailand
| | - Janet Jennifer Luangsa-Ard
- National Centre for Genetic Engineering and Biotechnology (BIOTEC), NSTDA, 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani 12120, Thailand
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand
| | | | - Marc Stadler
- Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany
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25
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Vijitphan P, Rukachaisirikul V, Muanprasat C, Iawsipo P, Panprasert J, Tadpetch K. Unified synthesis and cytotoxic activity of 8-O-methylfusarubin and its analogues. Org Biomol Chem 2019; 17:7078-7087. [PMID: 31298255 DOI: 10.1039/c9ob01221d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and unified synthesis of four related pyranonaphthoquinone natural products, e.g. 8-O-methylfusarubin, 8-O-methylanhydrofusarubin, fusarubin and anhydrofusarubin, is reported. The key synthetic features include the precedented Diels-Alder cycloaddition to assemble the naphthalene skeleton, selective formylation and acetonylation and intramolecular acetalization to construct the pyran ring. Manipulation of the oxidation state of the naphthoquinone core was performed to construct the two analogues, fusarubin and anhydrofusarubin. This work also highlights an unprecedented directing effect of the hydroxymethylene group in the selective hypervalent iodine-mediated quinone oxidation. The four synthetic compounds were evaluated for their in vitro cytotoxic activities against six human cancer cells. 8-O-Methylfusarubin was the most potent analogue and displayed excellent cytotoxic activity against MCF-7 breast cancer cells with an IC50 value of 1.01 μM with no cytotoxic effect on noncancerous Vero cells, which could potentially be a promising lead compound for anti-breast cancer drug discovery.
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Affiliation(s)
- Pongsit Vijitphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Chatchai Muanprasat
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand and Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Panata Iawsipo
- Department of Biochemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand and Unit of Bioactive Natural Compounds for Healthcare Products Development, Faculty of Science, Burapha University, Chonburi 20131, Thailand
| | - Jiraporn Panprasert
- Department of Biochemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand and Unit of Bioactive Natural Compounds for Healthcare Products Development, Faculty of Science, Burapha University, Chonburi 20131, Thailand
| | - Kwanruthai Tadpetch
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
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26
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Rukachaisirikul V, Chinpha S, Saetang P, Phongpaichit S, Jungsuttiwong S, Hadsadee S, Sakayaroj J, Preedanon S, Temkitthawon P, Ingkaninan K. Depsidones and a dihydroxanthenone from the endophytic fungi Simplicillium lanosoniveum (J.F.H. Beyma) Zare & W. Gams PSU-H168 and PSU-H261. Fitoterapia 2019; 138:104286. [PMID: 31394164 DOI: 10.1016/j.fitote.2019.104286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 12/24/2022]
Abstract
Three new compounds including two depsidones (simplicildones J and K) and one dihydroxanthenone (globosuxanthone E) together with nine known compounds were obtained from the crude extracts of two endophytic fungi Simplicillium lanosoniveum (J.F.H. Beyma) Zare & W. Gams PSU-H168 and PSU-H261 which were isolated from the leaves of Hevea brasiliensis. The structures were elucidated by spectroscopic evidence. The absolute configuration of globosuxanthone E was established by means of experimental and calculated TDDFT ECD data. Simplicildone K exhibited antibacterial activity against Staphylococcus aureus and methicillin-resistant S. aureus with equal MIC values of 128 μg/mL. Simplicildone K and globosuxanthone E displayed antifungal activity against Cryptococcus neoformans ATCC90113 with the same MIC values of 32 μg/mL. In addition, known botryohordine C and simplicildone A showed phosphodiesterase 5 inhibitory activity with the IC50 values of 5.69 and 9.96 μM, respectively, and were noncytotoxic toward noncancerous Vero cells.
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Affiliation(s)
- Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Supaporn Chinpha
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Praphatsorn Saetang
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Siriporn Jungsuttiwong
- Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Sarinya Hadsadee
- Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat 80161, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Prapapan Temkitthawon
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand
| | - Kornkanok Ingkaninan
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand
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27
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Chalothorn T, Rukachaisirikul V, Phongpaichit S, Pannara S, Tansakul C. Synthesis and antibacterial activity of emodin and its derivatives against methicillin-resistant Staphylococcus aureus. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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28
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Abstract
Six new (1-6), together with seven known (7-13), trichothecenes were isolated from the soil-derived Trichoderma brevicompactum PSU-RSPG27. Their structures were established using spectroscopic data. The structure of 1 was confirmed by X-ray data. Trichodermin (7) exhibited the most potent activity against Plasmodium falciparum (K1 strain) with an IC50 value of 0.1 μM, while other trichothecenes (1, 8, 9, and 12) were much less active, with IC50 values in the range of 7.1-9.6 μM. Compound 7 displayed activity against noncancerous Vero cells with an IC50 value of 0.4 μM. The remaining compounds showed moderate to weak activity, with IC50 values in the range of 6.9-15.3 μM. Compounds 7 and 12 were active against human oral carcinoma (KB) cells with IC50 values of 2.4 and 3.7 μM, respectively. Additionally, compounds 7 and 12 displayed antifungal activity against Candida albicans with the respective MIC values of 1 and 2 μg/mL and were active against Cryptococcus neoformans with equal MIC values of 4 μg/mL.
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Affiliation(s)
- Saranyoo Klaiklay
- Faculty of Science and Industrial Technology , Prince of Songkla University , Surat Thani Campus, Muang Surat Thani, Surat Thani 84000 , Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science , Prince of Songkla University , Hat Yai, Songkhla 90112 , Thailand
| | - Saowanit Saithong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science , Prince of Songkla University , Hat Yai, Songkhla 90112 , Thailand
| | - Souwalak Phongpaichit
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science , Prince of Songkla University , Hat Yai, Songkhla 90112 , Thailand
| | - Jariya Sakayaroj
- School of Science , Walailak University , Nakhornsithammarat 80161 , Thailand
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29
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Yimnual C, Satitsri S, Rukachaisirikul V, Muanprasat C. Inhibition of TMEM16A Cl
−
Channel by Fungus‐Derived Penicillide in Airway Epithelial Cells. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.670.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chantapol Yimnual
- Department of Physiology, Faculty of ScienceMahidol UniversityBangkokThailand
| | - Saravut Satitsri
- Faculty of Medicine Ramathibodi HospitalMahidol UniversityBangkokThailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of SciencePrince of Songkla UniversitySongkhlaThailand
| | - Chatchai Muanprasat
- Department of Physiology, Faculty of ScienceMahidol UniversityBangkokThailand
- Excellent Center for Drug DiscoveryFaculty of ScienceMahidol UniversityBangkokThailand
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30
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Akrimajirachoote N, Satitsri S, Rukachaisirikul V, Muanprasat C. In Vitro
Studies on the Mechanism of CFTR Inhibition by a Fungus‐derived Compound and Its Potential Anti‐diarrheal Application. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.821.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Saravut Satitsri
- Faculty of Medicine Ramathibodi HospitalMahidol UniversityBangkokThailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of SciencePrince of Songkla UniversitySongklaThailand
| | - Chatchai Muanprasat
- Department of Physiology, Faculty of ScienceMahidol UniversityBangkokThailand
- Excellent Center for Drug Discovery, Faculty of ScienceMahidol UniversityBangkokThailand
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31
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Suwannarat S, Iewkittayakorn J, Sukpondma Y, Rukachaisirikul V, Phongpaichit S, Chotigeat W. Optimization of the Production of Lovastatin from Aspergillus sclerotiorum PSU- RSPG178 under Static Liquid Culture using Response Surface Methodology. SAINS MALAYS 2019. [DOI: 10.17576/jsm-2019-4801-11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Duangjan C, Rukachaisirikul V, Saithong S, Kaeobamrung J. Copper-catalyzed domino reaction of carbodiimides and benzoic acid derivatives for the synthesis of quinazolinediones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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33
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Phainuphong P, Rukachaisirikul V, Phongpaichit S, Sakayaroj J, Kanjanasirirat P, Borwornpinyo S, Akrimajirachoote N, Yimnual C, Muanprasat C. Depsides and depsidones from the soil-derived fungus Aspergillus unguis PSU-RSPG204. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Supaphon P, Keawpiboon C, Preedanon S, Phongpaichit S, Rukachaisirikul V. Isolation and antimicrobial activities of fungi derived from Nymphaea lotus and Nymphaea stellata. MYCOSCIENCE 2018. [DOI: 10.1016/j.myc.2018.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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35
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Phainuphong P, Rukachaisirikul V, Saithong S, Phongpaichit S, Sakayaroj J, Srimaroeng C, Ontawong A, Duangjai A, Muangnil P, Muanprasat C. Asperidines A-C, pyrrolidine and piperidine derivatives from the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178. Bioorg Med Chem 2018; 26:4502-4508. [PMID: 30078607 DOI: 10.1016/j.bmc.2018.07.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/20/2018] [Accepted: 07/22/2018] [Indexed: 11/25/2022]
Abstract
One new pyrrolidine derivative, asperidine A (1), and two new piperidine derivatives, asperidines B (2) and C (3), were isolated from the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178 together with two known alkaloids. Compound 3 possessed an unprecedented 7-oxa-1-azabicyclo[3.2.1]octane skeleton with four chiral centers. Their structures were determined by spectroscopic evidence. The absolute configurations of compounds 2 and 3 were established using Mosher's method and further confirmed for compound 3 by X-ray crystallographic data. Compound 2 dose-dependently inhibited the CFTR-mediated chloride secretion in T84 cells with an IC50 value of 0.96 μM whereas 3 displayed the same activity with the IC50 value of 58.62 μM. Compounds 2 and 3 also significantly reduced intracellular ROS under both normal and H2O2-treated conditions compared with their respective controls in a dose-dependent manner without cytotoxic effect on Caco-2 cells. In addition, compound 3 was inactive against noncancerous Vero cells whereas compound 2 was considered to be inactive with the IC50 value of >10 μM.
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Affiliation(s)
- Patima Phainuphong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Saowanit Saithong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Tha Sala, Nakhon Si Thammarat 80161, Thailand
| | - Chutima Srimaroeng
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Mueang District, Chiang Mai 50200, Thailand
| | - Atcharaporn Ontawong
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Mueang District, Chiang Mai 50200, Thailand; Division of Physiology, School of Medical Sciences, University of Phayao, Mueang District, Phayao 56000, Thailand
| | - Acharaporn Duangjai
- Division of Physiology, School of Medical Sciences, University of Phayao, Mueang District, Phayao 56000, Thailand
| | - Paradorn Muangnil
- Excellent Center for Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Chatchai Muanprasat
- Excellent Center for Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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36
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Muangnil P, Satitsri S, Tadpetch K, Saparpakorn P, Chatsudthipong V, Hannongbua S, Rukachaisirikul V, Muanprasat C. A fungal metabolite zearalenone as a CFTR inhibitor and potential therapy of secretory diarrheas. Biochem Pharmacol 2018; 150:293-304. [DOI: 10.1016/j.bcp.2018.02.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/16/2018] [Indexed: 02/07/2023]
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37
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Saetang P, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J, Borwornpinyo S, Seemakhan S, Muanprasat C. Corrigendum to "Depsidones and an α-pyrone derivative from Simplicillium sp. PSU-H41, an endophytic fungus from Hevea brasiliensis leaf" [Phytochemistry 143 (2017) 115-123]. Phytochemistry 2018; 145:215. [PMID: 29102431 DOI: 10.1016/j.phytochem.2017.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Praphatsorn Saetang
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Souwalak Phongpaichit
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Jariya Sakayaroj
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Suparerk Borwornpinyo
- Department of Biotechnology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
| | - Sawinee Seemakhan
- Excellent Center of Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
| | - Chatchai Muanprasat
- Excellent Center of Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
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Thiraporn A, Rukachaisirikul V, Iawsipo P, Somwang T, Tadpetch K. Total Synthesis and Cytotoxic Activity of 5′-Hydroxyzearalenone and 5′β-Hydroxyzearalenone. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701272] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Aticha Thiraporn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Prince of Songkla University; 90112 Hat Yai Songkhla Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Prince of Songkla University; 90112 Hat Yai Songkhla Thailand
| | - Panata Iawsipo
- Department of Biochemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Burapha University; 20131 Chonburi Thailand
| | - Tatiyar Somwang
- Department of Biochemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Burapha University; 20131 Chonburi Thailand
| | - Kwanruthai Tadpetch
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Prince of Songkla University; 90112 Hat Yai Songkhla Thailand
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39
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Hayeebueraheng A, Kaewmee B, Rukachaisirikul V, Kaeobamrung J. Synthesis of 2-(1,2,3-Triazolyl)benzamide Derivatives by a Copper(I)-Catalyzed Multicomponent Reaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701316] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Abdulhakim Hayeebueraheng
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Prince of Songkla University; 15 Kanjanavanit Road, Kohong 90112 Hat-Yai, Songkhla Thailand
| | - Benyapa Kaewmee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Prince of Songkla University; 15 Kanjanavanit Road, Kohong 90112 Hat-Yai, Songkhla Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Prince of Songkla University; 15 Kanjanavanit Road, Kohong 90112 Hat-Yai, Songkhla Thailand
| | - Juthanat Kaeobamrung
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Prince of Songkla University; 15 Kanjanavanit Road, Kohong 90112 Hat-Yai, Songkhla Thailand
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40
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Saetang P, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J, Borwornpinyo S, Seemakhan S, Muanprasat C. Depsidones and an α-pyrone derivative from Simplicillium sp. PSU-H41, an endophytic fungus from Hevea brasiliensis leaf [corrected]. Phytochemistry 2017; 143:115-123. [PMID: 28803995 DOI: 10.1016/j.phytochem.2017.08.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/29/2017] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
Nine previously undescribed depsidones (simplicildones A-I) and one previously undescribed α-pyrone (simplicilopyrone) were isolated from the endophytic fungus Simplicillium sp. PSU-H41 along with 11 known compounds. Their structures were established by extensive spectroscopic analysis. Simplicildone A and known botryorhodine C displayed weak antibacterial against Staphylococcus aureus with equal MIC values of 32 μg/mL. Additionally, botryorhodine C was active against methicillin-resistant S. aureus with the same MIC value. Simplicildone C exhibited weak antifungal activity against Cryptococcus neoformans with an MIC value of 32 μg/mL. In addition, simplicildones A and C and botryorhodine C were noncytotoxic against noncancerous Vero cells.
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Affiliation(s)
- Praphatsorn Saetang
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Souwalak Phongpaichit
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Jariya Sakayaroj
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Suparerk Borwornpinyo
- Department of Biotechnology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
| | - Sawinee Seemakhan
- Excellent Center of Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
| | - Chatchai Muanprasat
- Excellent Center of Drug Discovery and Department of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
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Phainuphong P, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J. Diphenyl ethers and indanones from the soil-derived fungus Aspergillus unguis PSU-RSPG204. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Zhou TT, Ma F, Shi XF, Xu X, Du T, Guo XD, Wang GH, Yu L, Rukachaisirikul V, Hu LH, Chen J, Shen X. DMT efficiently inhibits hepatic gluconeogenesis by regulating the Gαq signaling pathway. J Mol Endocrinol 2017. [PMID: 28637808 DOI: 10.1530/jme-17-0121] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease with complicated pathogenesis and targeting gluconeogenesis inhibition is a promising strategy for anti-diabetic drug discovery. G protein-coupled receptors (GPCRs) are classified as distinct families by heterotrimeric G proteins, primarily including Gαs, Gαi and Gαq. Gαs-coupled GPCRs function potently in the regulation of hepatic gluconeogenesis by activating cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) pathway and Gαi-coupled GPCRs exhibit inhibitory effect on adenylyl cyclase and reduce intracellular cAMP level. However, little is known about the regulation of Gαq-coupled GPCRs in hepatic gluconeogenesis. Here, small-molecule 2-(2,4-dimethoxy-3-methylphenyl)-7-(thiophen-2-yl)-9-(trifluoromethyl)-2,3-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(1H)-one (DMT) was determined to suppress hepatic glucose production and reduce mRNA levels of gluconeogenic genes. Treatment of DMT in db/db mice decreased fasting blood glucose and hemoglobin A1C (HbA1c) levels, while improved glucose tolerance and pyruvate tolerance. Mechanism study demonstrated that DMT-inhibited gluconeogenesis by regulating the Gαq/phospholipase C (PLC)/inositol-1,4,5-triphosphate receptor (IP3R)-mediated calcium (Ca2+)/calmodulin (CaM)/phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/protein kinase B (AKT)/forkhead box protein O1 (FOXO1) signaling pathway. To our knowledge, DMT might be the first reported small molecule able to suppress hepatic gluconeogenesis by regulating Gαq signaling, and our current work has also highlighted the potential of DMT in the treatment of T2DM.
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Affiliation(s)
- Ting-Ting Zhou
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Fei Ma
- School of PharmacyEast China University of Science and Technology, Shanghai, China
| | - Xiao-Fan Shi
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Xin Xu
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Te Du
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Xiao-Dan Guo
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Gai-Hong Wang
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Liang Yu
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | | | - Li-Hong Hu
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Jing Chen
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
| | - Xu Shen
- Key Laboratory of Receptor ResearchShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of SciencesBeijing, China
- Key Laboratory of Drug Target and Drug for Degenerative DiseaseSchool of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
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Guo XD, Sun GL, Zhou TT, Wang YY, Xu X, Shi XF, Zhu ZY, Rukachaisirikul V, Hu LH, Shen X. LX2343 alleviates cognitive impairments in AD model rats by inhibiting oxidative stress-induced neuronal apoptosis and tauopathy. Acta Pharmacol Sin 2017. [PMID: 28649128 DOI: 10.1038/aps.2016.128] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease leading to the irreversible loss of brain neurons and cognitive abilities, and the vicious interplay between oxidative stress (OS) and tauopathy is believed to be one of the major players in AD development. Here, we demonstrated the capability of the small molecule N-(1,3-benzodioxol-5-yl)-2-[5-chloro-2-methoxy(phenylsulfonyl)anilino]acetamide (LX2343) to ameliorate the cognitive dysfunction of AD model rats by inhibiting OS-induced neuronal apoptosis and tauopathy. Streptozotocin (STZ) was used to induce OS in neuronal cells in vitro and in AD model rats that were made by intracerebroventricular injection of STZ (3 mg/kg, bilaterally), and Morris water maze test was used to evaluate the cognitive dysfunction in ICV-STZ rats. Treatment with LX2343 (5-20 μmol/L) significantly attenuated STZ-induced apoptosis in SH-SY5Y cells and mouse primary cortical neurons by alleviating OS and inhibiting the JNK/p38 and pro-apoptotic pathways. LX2343 was able to restore the integrity of mitochondrial function and morphology, increase ATP biosynthesis, and reduce ROS accumulation in the neuronal cells. In addition, LX2343 was found to be a non-ATP competitive GSK-3β inhibitor with IC50 of 1.84±0.07 μmol/L, and it potently inhibited tau hyperphosphorylation in the neuronal cells. In ICV-STZ rats, administration of LX2343 (7, 21 mg·kg-1·d-1, ip, for 5 weeks) efficiently improved their cognitive deficits. LX2343 ameliorates the cognitive dysfunction in the AD model rats by suppressing OS-induced neuronal apoptosis and tauopathy, thus highlighting the potential of LX2343 for the treatment of AD.
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Maha A, Rukachaisirikul V, Phongpaichit S, Preedanon S, Sakayaroj J. Tyrosine and hydantoin derivatives from the fungus Phoma herbarum PSU-H256 isolated from Hevea brasiliensi s. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Helaly SE, Kuephadungphan W, Phongpaichit S, Luangsa-Ard JJ, Rukachaisirikul V, Stadler M. Five Unprecedented Secondary Metabolites from the Spider Parasitic Fungus Akanthomyces novoguineensis. Molecules 2017; 22:molecules22060991. [PMID: 28613244 PMCID: PMC6152716 DOI: 10.3390/molecules22060991] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/31/2017] [Accepted: 06/01/2017] [Indexed: 11/25/2022] Open
Abstract
Five new compounds including the glycosylated β-naphthol (1, akanthol), a glycosylated pyrazine (2, akanthozine), and three amide derivatives including a hydroxamic acid derivative (3–5) were isolated from the spider-associated fungus Akanthomyces novoguineensis (Cordycipitaceae, Ascomycota). Their structures were elucidated by using high resolution mass spectrometry (HRMS) and NMR spectroscopy. In this study, the antimicrobial, cytotoxic, anti-biofilm, and nematicidal activities of the new compounds were evaluated. The distribution pattern of secondary metabolites in the species was also revealed in which more isolates of A. novoguineensis were encountered and their secondary metabolite profiles were examined using analytical HPLC with diode array and mass spectrometric detection (HPLC-DAD/MS). Remarkably, all isolated compounds are specifically produced by A. novoguineensis.
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Affiliation(s)
- Soleiman E Helaly
- Department of Microbial Drugs, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
- Department of Chemistry, Faculty of Science, Aswan University, Aswan 81528, Egypt.
| | - Wilawan Kuephadungphan
- Department of Microbial Drugs, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand.
| | - Souwalak Phongpaichit
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand.
- Natural Products Research Center of Excellence and Department of Microbiology, Prince of Songkla University, Songkhla 90112, Thailand.
| | | | - Vatcharin Rukachaisirikul
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand.
- Center of Excellence for Innovation in Chemistry, Prince of Songkla University, Songkhla 90112, Thailand.
| | - Marc Stadler
- Department of Microbial Drugs, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
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Pongkorpsakol P, Yimnual C, Chatsudthipong V, Rukachaisirikul V, Muanprasat C. Cellular mechanisms underlying the inhibitory effect of flufenamic acid on chloride secretion in human intestinal epithelial cells. J Pharmacol Sci 2017; 134:93-100. [PMID: 28651800 DOI: 10.1016/j.jphs.2017.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/09/2017] [Accepted: 05/19/2017] [Indexed: 01/10/2023] Open
Abstract
Intestinal Cl- secretion is involved in the pathogenesis of secretory diarrheas including cholera. We recently demonstrated that flufenamic acid (FFA) suppressed Vibrio cholerae El Tor variant-induced intestinal fluid secretion via mechanisms involving AMPK activation and NF-κB-suppression. The present study aimed to investigate the effect of FFA on transepithelial Cl- secretion in human intestinal epithelial (T84) cells. FFA inhibited cAMP-dependent Cl- secretion in T84 cell monolayers with IC50 of ∼8 μM. Other fenamate drugs including tolfenamic acid, meclofenamic acid and mefenamic acid exhibited the same effect albeit with lower potency. FFA also inhibited activities of CFTR, a cAMP-activated apical Cl- channel, and KCNQ1/KCNE3, a cAMP-activated basolateral K+ channel. Mechanisms of CFTR inhibition by FFA did not involve activation of its negative regulators. Interestingly, FFA inhibited Ca2+-dependent Cl- secretion with IC50 of ∼10 μM. FFA inhibited activities of Ca2+-activated Cl- channels and KCa3.1, a Ca2+-activated basolateral K+ channels, but had no effect on activities of Na+-K+-Cl- cotransporters and Na+-K+ ATPases. These results indicate that FFA inhibits both cAMP and Ca2+-dependent Cl- secretion by suppressing activities of both apical Cl- channels and basolateral K+ channels. FFA and other fenamate drugs may be useful in the treatment of secretory diarrheas.
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Affiliation(s)
- Pawin Pongkorpsakol
- Translational Medicine Graduate Program, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Rama VI Road, Rajathevi, Bangkok 10400, Thailand
| | - Chantapol Yimnual
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Rajathevi, Bangkok 10400, Thailand
| | - Varanuj Chatsudthipong
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Rajathevi, Bangkok 10400, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Chatchai Muanprasat
- Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Rajathevi, Bangkok 10400, Thailand; Excellent Center for Drug Discovery (ECDD), Mahidol University, Rama VI Road, Rajathevi, Bangkok 10400, Thailand.
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Phainuphong P, Rukachaisirikul V, Tadpetch K, Sukpondma Y, Saithong S, Phongpaichit S, Preedanon S, Sakayaroj J. γ-Butenolide and furanone derivatives from the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178. Phytochemistry 2017; 137:165-173. [PMID: 28228227 DOI: 10.1016/j.phytochem.2017.02.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 01/26/2017] [Accepted: 02/06/2017] [Indexed: 05/28/2023]
Abstract
Chromatographic separation of the broth extract of the soil-derived fungus Aspergillus sclerotiorum PSU-RSPG178 resulted in isolation of four γ-butenolide-furanone dimers, aspersclerotiorones A-D, a furanone derivative, aspersclerotiorone E, and two γ-butenolide derivatives, aspersclerotiorones F and G, together with six known compounds, penicillic acid, dihydropenicillic acid, 5,6-dihydro-6-hydroxypenicillic acid, 6-methoxy-5,6-dihydropenicillic acid, coculnol and (4R,5R)-4,5-dihydroxy-3-methoxy-5-methylcyclohex-2-en-1-one. Their structures were determined by spectroscopic evidence. For aspersclerotiorones A and B, the structures were confirmed by single-crystal X-ray diffraction crystallography. Penicillic acid displayed weak antibacterial activity against Staphylococcus aureus and Escherichia coli with equal MIC values of 128 μg/mL, and it was noncytotoxic towards African green monkey kidney fibroblast cells.
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Affiliation(s)
- Patima Phainuphong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Vatcharin Rukachaisirikul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
| | - Kwanruthai Tadpetch
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Yaowapa Sukpondma
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Saowanit Saithong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Souwalak Phongpaichit
- Natural Products Research Center of Excellence and Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Sita Preedanon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Jariya Sakayaroj
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
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Boonyaketgoson S, Rukachaisirikul V, Phongpaichit S, Trisuwan K. Cytotoxic arylbenzofuran and stilbene derivatives from the twigs of Artocarpus heterophyllus. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Li C, Guo XD, Lei M, Wu JY, Jin JZ, Shi XF, Zhu ZY, Rukachaisirikul V, Hu LH, Wen TQ, Shen X. Thamnolia vermicularis extract improves learning ability in APP/PS1 transgenic mice by ameliorating both Aβ and Tau pathologies. Acta Pharmacol Sin 2017; 38:9-28. [PMID: 27694908 PMCID: PMC5220549 DOI: 10.1038/aps.2016.94] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 07/24/2016] [Indexed: 12/25/2022] Open
Abstract
Considering the complicated pathogenesis of Alzheimer's disease (AD), multi-targets have become a focus in the discovery of drugs for treatment of this disease. In the current work, we established a multi-target strategy for discovering active reagents capable of suppressing both Aβ level and Tau hyperphosphorylation from natural products, and found that the ethanol extract of Thamnolia vermicularis (THA) was able to improve learning ability in APP/PS1 transgenic mice by inhibiting both Aβ levels and Tau hyperphosphorylation. SH-SY5Y and CHO-APP/BACE1 cells and primary astrocytes were used in cell-based assays. APP/PS1 transgenic mice [B6C3-Tg(APPswe, PS1dE9)] were administered THA (300 mg·kg-1·d-1, ig) for 100 d. After the administration was completed, the learning ability of the mice was detected using a Morris water maze (MWM) assay; immunofluorescence staining, Congo red staining and Thioflavine S staining were used to detect the senile plaques in the brains of the mice. ELISA was used to evaluate Aβ and sAPPβ contents, and Western blotting and RT-PCR were used to investigate the relevant signaling pathway regulation in response to THA treatment. In SH-SY5Y cells, THΑ (1, 10, 20 μg/mL) significantly stimulated PI3K/AKT/mTOR and AMPK/raptor/mTOR signaling-mediated autophagy in the promotion of Aβ clearance as both a PI3K inhibitor and an AMPK indirect activator, and restrained Aβ production as a suppressor against PERK/eIF2α-mediated BACE1 expression. Additionally, THA functioned as a GSK3β inhibitor with an IC50 of 1.32±0.85 μg/mL, repressing Tau hyperphosphorylation. Similar effects on Aβ accumulation and Tau hyperphosphorylation were observed in APP/PS1 transgenic mice treated with THA. Furthermore, administration of THA effectively improved the learning ability of APP/PS1 transgenic mice, and markedly reduced the number of senile plaques in their hippocampus and cortex. The results highlight the potential of the natural product THA for the treatment of AD.
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Affiliation(s)
- Cong Li
- School of Life Sciences, Shanghai University, Shanghai 200444, China
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xiao-dan Guo
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Min Lei
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jia-yi Wu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jia-zhen Jin
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xiao-fan Shi
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhi-yuan Zhu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Vatcharin Rukachaisirikul
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Li-hong Hu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Tie-qiao Wen
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Xu Shen
- School of Life Sciences, Shanghai University, Shanghai 200444, China
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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