{"title":"Phenolic Constituents from Balanophora laxiflora with their Anti-inflammatory and Cytotoxic Effects","authors":"N. Anh, N. T. Duong, Pham Duc Vinh, Do Thi Thu Ha","doi":"10.20307/NPS.2021.27.1.49","DOIUrl":"https://doi.org/10.20307/NPS.2021.27.1.49","url":null,"abstract":"Balanophora laxiflora Hemsl. (Balanophoraceae) is a traditional medicinal plant with a diverse array of biological activities. In our exploration of new bioactive constituents from B. laxiflora, we isolated five compounds, including a new lignan, balanophorone (5), and four known phenolic compounds (1-4). The chemical structures of these compounds were determined by extensive spectroscopic analyses, including 1D and 2D NMR, HR-ESI-MS, and CD. In addition, we evaluated the effects of each of the isolates (1-5) on the messenger RNA expression levels of tumor necrosis factor (TNF)-α and cyclooxygenase (COX)-2 in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages and cytotoxicity against MCF-7 and MDA-MB- 231 breast cancer cells. Compound 2 showed significant inhibition of LPS-induced COX-2 and TNF-α expression in RAW 264.7 macrophages, while compound 4 showed moderate cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cells, with IC50 values of 18.3 and 30.7 μM, respectively. No significant effects on the viability of normal mammary epithelial cells were observed.","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68201665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jang Hyeon Seok, Choi Seong Yeon, Yang Heejung, Kim Myong Jo, Chun Wanjoo, Kwon Yongsoo
{"title":"A New Phenolic Compound from Lespedeza tomentosa","authors":"Jang Hyeon Seok, Choi Seong Yeon, Yang Heejung, Kim Myong Jo, Chun Wanjoo, Kwon Yongsoo","doi":"10.20307/NPS.2021.27.3.169","DOIUrl":"https://doi.org/10.20307/NPS.2021.27.3.169","url":null,"abstract":"A new phenolic compound and three known flavonoids isolated from the MeOH extracts of Lespedeza tomentosa. Based on spectral data, the isolated compounds were identified as methyl 4,5-dihydroxy-3-methoxy-2-(3-methylbut-2-en-1-yl)benzoate (1), 1-methoxylespeflorin G11 (2), farrerol (3) and 1-methoxylespeflorin I2 (4). Methyl 4,5-dihydroxy-3-methoxy-2-(3-methylbut-2-en-1-yl)benzoate (1) is newly isolated from plant source.","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":"27 1","pages":"169-171"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68201776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Coumestan Glucoside from Eclipta prostrata","authors":"Y. Seo, H. Kil, T. Rho, K. Yoon","doi":"10.20307/nps.2020.26.4.289","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.289","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44657730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joseph Nguetse Dongmo Arnaud, Endeguele Ekom Steve, J. Tamokou, Ngoufack Tagousop Cyrille, D. Harakat, Voutquenne-Nazabadiok Laurence, Ngnokam David
{"title":"A New Stilbene Dimer and Other Chemical Constituents from Monanthotaxis littoralis with Their Antimicrobial Activities","authors":"Joseph Nguetse Dongmo Arnaud, Endeguele Ekom Steve, J. Tamokou, Ngoufack Tagousop Cyrille, D. Harakat, Voutquenne-Nazabadiok Laurence, Ngnokam David","doi":"10.20307/nps.2020.26.4.317","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.317","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42749431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Calyxaprenols A-D, New Merohexaprenoid Metabolites from the Marine Sponge Calyx sp.","authors":"Chang-Kwon Kim, K. Gustafson","doi":"10.20307/nps.2020.26.4.303","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.303","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45953212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Azizud Din, Iqbal Muhammad, Ghulam Musharraf Syed, S. Saleem
{"title":"Stereoselective Microbial Hydroxylation of Progestin, Norethisterone by Using Aspergillus niger and Penicillium citrinum","authors":"Azizud Din, Iqbal Muhammad, Ghulam Musharraf Syed, S. Saleem","doi":"10.20307/nps.2020.26.4.283","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.283","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47727314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jin-Woo Lee, I. Lee, Se-Hoon Park, Min Jegal Chang, Keunwoo Choi, Hye-Young Jung, Jung-Ae Choi, Chan Lee, Ho Kyong Kim, Jung Suk Lee
{"title":"Chemical Composition of Artemisia argyi Extract (RW0117) and Protective Effects against Gastric Lesions in vivo","authors":"Jin-Woo Lee, I. Lee, Se-Hoon Park, Min Jegal Chang, Keunwoo Choi, Hye-Young Jung, Jung-Ae Choi, Chan Lee, Ho Kyong Kim, Jung Suk Lee","doi":"10.20307/nps.2020.26.4.268","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.268","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44434772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development and Validation of an HPLC-PDA Method for Quantitation of Ten Marker Compounds from Eclipta prostrata (L.) and Evaluation of Their Protein Tyrosine Phosphatase 1B, α-Glucosidase, and Acetylcholinesterase Inhibitory Activities","authors":"H. Duc, Dat Le Duc, E. Ma, B. Min, M. Woo","doi":"10.20307/nps.2020.26.4.326","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.326","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43776506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Heliawati, Khatimah Husnul, Hermawati Elvira, M. Yana
{"title":"Four Dammarane Triterpenes and Their Inhibitory Properties Against Eight Receptor Tyrosine Kinases","authors":"L. Heliawati, Khatimah Husnul, Hermawati Elvira, M. Yana","doi":"10.20307/nps.2020.26.4.345","DOIUrl":"https://doi.org/10.20307/nps.2020.26.4.345","url":null,"abstract":" In recent years, tyrosine kinases (TKs) have been the target to combat cancers, and most of the developed inhibitors are of synthetic origin. Natural compounds that have the properties as the TK’s inhibitors are very limited. This paper described the isolation of a new dammarane triterpene from the tree bark of Sandoricum koetjape, along with three known related dammaranes from the damar resin of Shorea javanica, as well as their inhibitory properties against eight receptor TKs (RTKs: EGFR, HER2, HER4, IGF1R, InsR, KDR, PDGFR, and PDGFR). Based on the NMR and mass spectral data the new compound was identified as (12,20S)-12,20dihydroxy-3,4-seco-dammaran-4,24-dien-3-oic acid (12-hydroxydammarenolic acid) (1), while the three known compounds were identified as (20S)-20-hydroxy-3,4-seco-dammaran-4,24-dien-3-oic acid (dammarenolic acid) (2), (3,20S)-3,20-dihydroxydammaran-24-ene (3), and (20S)-3-oxo-20-hydroxydammaran-24-ene (4). The tyrosine kinase assay of the four compounds resulted only 1 and 2 at concentration of 10 M that had weak activity against EGFR and InsR, with their % inhibitory were 30%, 27% (1), 45%, and 32% (2), respectively. The results suggested that the presence of a linear carboxylic acid group in both compounds could be of significance to the inhibitory properties against the two RTKs.","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46972901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haeun Kwon, Kim Jun-Gu, Oh Jeong Joo, Jae Jin Kim, Gyu-Hyeok Kim, Hwang, Bang Yeon, J. Yim, Lee, Dongho
{"title":"Molecular Networking-based De-replication Strategy Leads to the Isolation of a New Chromone from Pleosporales sp.","authors":"Haeun Kwon, Kim Jun-Gu, Oh Jeong Joo, Jae Jin Kim, Gyu-Hyeok Kim, Hwang, Bang Yeon, J. Yim, Lee, Dongho","doi":"10.20307/NPS.2020.26.4.340","DOIUrl":"https://doi.org/10.20307/NPS.2020.26.4.340","url":null,"abstract":"","PeriodicalId":19080,"journal":{"name":"Natural product sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48333742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}