• Mycobiology
• /
• 제46권4호
• /
• pp.448-451
• /
• 2018

Fungal perylenequinones have photodynamic activity and are promising photosensitizers for photodynamic therapy (PDT). Here, we investigated the bactericidal and antitumor activities of phleichrome from the fungal perylenequinone family in vitro. Photodynamic bactericidal activity of phleichrome was analyzed by agar-well diffusion method under dark and illuminated conditions. The photodynamic antitumor activity of phleichrome was analyzed in MCF-7, HeLa, SW480, and HepG2 human cancer cell lines using in vitro cytotoxicity assays. Photodynamic bactericidal activities against Gram-negative and Gram-positive bacteria were species-specific. Antitumor activity against all tumor cell lines increased under the illuminated condition. Depending on the results of the analyses, Phleichrome has potential for further drug development related to its antibacterial and antitumor activities.

• Archives of Pharmacal Research
• /
• 제8권1호
• /
• pp.31-38
• /
• 1985

Polysaccharide fractions were prepared from Forsythia Corea by several different extraction schedules. The fractions obtained were designated as ForCo A, ForCo B and ForCo C respectively. ForCo C was further purified through Sephadex G 200 column chromatography and obtianed two subfractions (Coreana A, Coreana B). ForCo showed marked antitumor activity against sarooma 180 and its activity was dose-dependent. Coreana A, purified from ForCo C, showed somewhat higher antitumor activity. ForCo C increased the number of circulating leucocytes and peritoneal exudate cells, but didn't show any significant effects on the phagocytic activity and total serum protein level. Chemical analysis showed that ForCo C was composed of glucose, galactose, xylose and arabinose. A close relationship between antitumor activities and polysaccharide contents waw observed. These results indicate strongly that antitumor active principle of Forsythia Corea is polysaccharide.

• 동의생리병리학회지
• /
• 제19권2호
• /
• pp.441-445
• /
• 2005

Tripterygium regelii has been used as an oriental medicine, especially antiparasitic, anti-inflammatory and detoxifying agents in East asia. During our research to develop new antitumor agents from natural products, MeOH ext. and CH2Cl2 ext. of Tripterygium regelii showed the potent antitumor activity. In order to purify active compounds from Tripterygium regelii, activity-guided fractionation was carried out. Silica gel and RP-18 column chromatography for the active fraction led to the isolation of two compounds and their antitumor activities were studied. Those two compounds didn't show potent antitumor activity against human tumor cell lines. The structure of two compounds were determined by $^1H-NMR$, $^{13}C-NMR$, DEPT, $^1H-^{13}C$ COSY and IR spectrum. Compound I and Compound II were turned out to be Celastrol, and ${\beta}-sitosteryl-3-o-{\beta}-D-glucopyranoside$ respectively.

• 약학회지
• /
• 제31권2호
• /
• pp.126-132
• /
• 1987

Polysaccharide fraction isolated from Coriolus versicolor (Copolang) was studied on the antitumor activity and immunostimulation activities with reference to PS-K. Copolang showed nearly equal antitumor activities to the PS-K and exhibited marked augmentation effects on the antibody mediated hypersensitivity reaction, delayed type hypersensitivity reaction and NK-cell activity in tumor bearing mice. But it did not show any noticeable effect on the antibody secreting cell and macrophage function in normal mice. These results indicate that the antitumor activity and immunostimulating effect of Copolang are comparable to those of PS-K.

• Archives of Pharmacal Research
• /
• 제20권2호
• /
• pp.138-143
• /
• 1997

5-Aryl-2,3-dihydroimidazo[2,1-a]isoquinolines were reported to have strong antitumor activity and one of the derivatives such as $5-[4^{l}$ -(piperidinomethyl)phenyl]-2,3-dihydroimidazo[2,1-a] isoquinoline (1, SDZ 62-434) was found to be more effective than the clinical cytostatic agent edelfosine (2) in in vitro and in vivo assays. Currently SDZ 62-434 is in clinical trials in Europe. The structure-activity relationship studies of SDZ 62-434 showed that compounds with substitution on ring A were less active than the lead compound. Ring B in SDZ 62-434 was essential for the activity because compounds without B ring had no antitumor activity. Among the 3-arylisoquinolin-1-one derivatives, $3-[4^{I}$-(piperidinomethyl)phenyl] substituted analog had no antitumor activity but simple phenyl substituted compound, such as 4, showed the most potent antitumor activity in various human tumor cell lines.

• Plant Resources
• /
• 제1권1호
• /
• pp.60-79
• /
• 1998

In this review we summarize the isolation, structural determination, antitumor activity of substances from higher plants which were collected in Asian region.

• 생약학회지
• /
• 제31권1호
• /
• pp.16-22
• /
• 2000

These studies were designed to determine the potential cytotoxic activity of MeOH extracts of 65 crude drugs against leukemia L1210 and $P388D_1$, cell line in vitro, of which 25 samples were selected. The n-BuOH extracts of 25 samples were measured using the same method and nine were selected. These samples were measured for the potential antitumor activity against $P388D_1$, for life span in vivo, and against sarcoma 180 for tumor weight. On the basis of results, Notoginseng Radix, Anemarrhenae Rhizoma, Albizziae Cortex, Portulacae Herba, Bupleuri Radix were evaluated the effective plant on the antitumor activity. In addition, the mixture of Notoginseng Radix and Albizziae Cortex was evaluated to enhance the antitumor activity in vivo.

• Archives of Pharmacal Research
• /
• 제27권9호
• /
• pp.915-918
• /
• 2004

By bioassay-guided separation, an already known saponin, Pulsatilla saponin D was isolated from the root of Pulsatilla koreana Nakai as a antitumor component when evaluated by in vivo antitumor activity as well as in vitro cytotoxic activity test. It showed potent inhibition rate of tumor growth (IR, 82％) at the dose of 6.4 mg/kg on the BDF1 mice bearing LLC cells.

• Archives of Pharmacal Research
• /
• 제9권1호
• /
• pp.1-4
• /
• 1986

As a part of finding the biologically active components from Duchesnea indica (Andr.) Focke (Rosaceae), antitumor activities of its water soluble fractions have been studied. The fractions were examined for antitumor activity against sarcoma 180 implanted in mice. The anitumor inhibition ratios of the water soluble fractions from Duchesnea indica were 17.9, 37.1, 62.1, 62.4%, repectively.

• Archives of Pharmacal Research
• /
• 제20권6호
• /
• pp.610-619
• /
• 1997

Some new 9H-thioxanthen-9-one incorporated into heterocyclic systems such as pyridone 8, pyrazoline 9, pyranone 11, iminopyrane 12, furopyrimidine 17, imidazothiazole 19, thiazole 21, triazine 24 and other related compounds through a para imminophenyl grouping at position-1 of the thioxanthenone ring were synthesized and tested as antitumor agents against L1210 leukemia in mice. Some of the new compounds showed considerable antitumor activity.