10 resultados
Paris polyphylla Smith var. yunnanensis, has been used in traditional Chinese medicine for its antibiotic and anti-inflammatory properties; in addition it has been used to cure liver cancer in particular. In this current study, β-ecdysterone (1) and three pennogenin steroidal saponins (2-4) were
OBJECTIVE
To study the anti-tumor active constituents from the rhizome of Paris polyphylla var. yunnanensis.
METHODS
The compounds were isolated by column chromatography with silica gel, and purified by Sephadex LH-20 columu chromafography and reverse-phase preparative, HPLC. The structures were
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignant carcinomas, which is characterized by apoptosis- and autophagy-dependent tumorigenic growth. Autophagy constitutes a stress adaptation that suppresses apoptosis. To explore new leading compound against PDAC, a pectin-like
Colorectal cancer is one of the most common cancers worldwide and chemotherapy is the main approach for the treatment of advanced and recurrent cases. Developing an effective complementary therapy could help to improve tumor suppression efficiency and control adverse effects from chemotherapy.
Phytochemical investigation of the underground parts of Liriope graminifolia (Linn.) Baker resulted in the isolation of two new steroidal saponins lirigramosides A (1) and B (2) along with four known compounds. The structures were determined by extensive spectral analysis, including two-dimensional
BACKGROUND
Chong-lou (Paris polyphylla var. yunnanensis or P. polyphylla var. chinensis) is traditionally used as an anticancer medicine in China. It is also the material basis of some Chinese patent anticancer medicines, such as Gan-Fu-Le capsules, Bo-Er-Ning capsules, Lou-Lian capsules, Ruan-Jian
Four new steroidal saponins (1-4) were isolated from the stem and bark of two species of Dracaena: deistelianosides A and B (1 and 2) from D. deisteliana and arboreasaponins A and B (3 and 4) from D. arborea. Six known saponins and one known sapogenin were also isolated. The structures of 1-4 were
OBJECTIVE
To study the anti-tumor bioactive steroid saponins of Paris vietnamensis (Takht.).
METHODS
The constituents were isolated and purified by chromatography and their structures were identified by spectral analysis and physicochemical properties. The cytotoxic bioactivities of the constituents
Glioblastoma is one of the most difficult cancers to treat with a 5-year overall survival rate less than 5%. Temozolomide (TMZ) is an effective drug for prolonging the overall survival time of patients, while drug-resistance is an important clinical problem at present.
A steroidal saponin named pennogenin 3-O-α-L-rhamnopyranosyl-(1→2) [α-L-rhamnopyranosyl-(1→4)]-β-D-glucoyranoside(TTB2) has been successfully separated from the n-BuOH extracts of Trillium tschonoskii Maxim and is able to induce cytotoxicity to some types cancer cells. The present study aimed to