Screening of promising chemotherapeutic candidates from plants against human adult T-cell leukemia/lymphoma (V): coumarins and alkaloids from Boenninghausenia japonica and Ruta graveolens

AbstractDuring the course of our studies towards the identification of promising chemotherapeutic candidates from plants against two human T-cell lymphotropic virus type I-infected T-cell lines (MT-1 and MT-2), we screened 17 extracts from 9 rutaceous plants against MT-1 and MT-2 cells. The extracts from the aerial parts and roots ofBoenninghausenia japonica, as well as the leaves and roots ofRuta graveolens showed potent antiproliferative effects. After activity-guided fractionation, we isolated 44 compounds from two rutaceous plants, including three new compounds (1 –3), which were classified into 26 coumarin analogs (13 coumarins, 8 furanocoumarins, 4 dihydrofuranocoumarins and one dihydropyranocoumarin), 15 alkaloid analogs (7 quinolone alkaloids, 4 acridone alkaloids, 3 furanoquinoline alkaloids and one tetrahydroacridone alkaloid) and 3 flavonoid glycosid es. Structure–activity relationship studies were also evaluated. The coumarin compounds (2, 3 and 7–9) bearing a 3-dimethylallyl moiety showed potent activity. Similarly, of all the furanocoumarins evaluated in the current study, compound 17 bearing a 3-dimethylallyl group also showed potent act ivity. A dihydrofuranocoumarin (27) bearing a 3-dimethylallyl moiety showed the most potent activity. Following 27, compound 28 showed potent activity. These results therefore suggested that the presence of a 3-dimethylallyl moiety was important to the antiproliferative activity of these coumarin an alogs.
Source: Journal of Natural Medicines - Category: Drugs & Pharmacology Source Type: research

Related Links:

Publication date: Available online 16 November 2019Source: Journal of Health EconomicsAuthor(s): Dimitris Christelis, Dimitris Georgarakos, Anna Sanz-de-GaldeanoAbstractEconomic theory predicts that a reduction in background risk should induce financial risk-taking, particularly for individuals with low stock market participation costs. Hence, health insurance coverage could affect financial risk-taking by offsetting health-related background risk. We use a regression discontinuity design to examine whether Medicare eligibility at age 65 increases stockholding in the US and find that it does so for those with college educa...
Source: Journal of Health Economics - Category: Health Management Source Type: research
In this study, serum IL6 was measured by ELISA, and the HSD11B1rs12086634(T/G) polymorphism was analyzed using a TaqMan allelic discrimination assay technique. There were statistically significant differences between the two studied groups concerning the serum IL-6 level and HSD11B1rs12086634(T/G) genotype distribution, with increased serum IL6 and increased frequencies of the GG and TG genotypes in patients with PCO. The GG genotype of HSD11B1 rs12086634(T/G) and its associated high level of serum IL-6 may represent genetic risk factors for PCOS.
Source: Meta Gene - Category: Genetics & Stem Cells Source Type: research
Publication date: Available online 17 November 2019Source: European UrologyAuthor(s): Tom Marcelissen, Kevin Rademakers
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 17 November 2019Source: European UrologyAuthor(s): Zhengzheng Xu, Guangzhe Ge, Bao Guan, Zhentao Lei, Xueyu Hao, Yuanyuan Zhou, Yue Shi, Huan Lu, Jilu Wang, Ding Peng, XiKang Wu, Huiying He, Bao Zhang, Xuesong Li, Liqun Zhou, Weimin Ci
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 16 November 2019Source: European UrologyAuthor(s): Pirus Ghadjar, Thomas Wiegel
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 16 November 2019Source: European UrologyAuthor(s): Elise De Bleser, Piet Ost
Source: European Urology - Category: Urology & Nephrology Source Type: research
ConclusionThe CFQL-2 is a brief, reliable scale that effectively measures psychosocial aspects of QoL and is sensitive to changes in QoL in families of children with ASD or related neurodevelopmental disorders. Child externalizing behavior is strongly associated with reductions in multiple aspects of child and family psychosocial QoL.
Source: Research in Autism Spectrum Disorders - Category: Psychiatry Source Type: research
ConclusionThis meta-analysis suggested a significant association between MTHFR gene polymorphism (C677T and A1298C) and ASD risk.
Source: Research in Autism Spectrum Disorders - Category: Psychiatry Source Type: research
ConclusionGiven that obtaining negative margins is important in reducing the risk of recurrence, the method of surgical resection utilized is based on the amount of future functional residual hepatic parenchyma.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
ConclusionsTattooing of axillary LNs is safe and easily performed. Tattooing was helpful in identifying the marked LN in the majority of cases. This technique helps to ensure that metastatic LNs are identified and removed at surgery after NAT.
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
More News: Drugs & Pharmacology | Ruta Graveolens