• Proceedings of the Korean Society of Applied Pharmacology
• /
• 2002.07a
• /
• pp.136-142
• /
• 2002

• Journal of Marine Bioscience and Biotechnology
• /
• v.5 no.4
• /
• pp.8-14
• /
• 2011

Although marine living organism contains a numerious number of compounds, it is difficult to collect these compounds in a large scale for medicinal application. However, in recent years, several bioactive compounds isolated from marine macroalgae have been proved to be able to provide potential sources for development of medicinal products because they can be obtained in large amount from marine. A number of studies have reported a variety of effects of marine macroalgae but a few anti-inflammatory activity of marine macroalgae have recently been published. Herein, we reviewed novel anti-inflammatory compounds recently isolated from marine brown algae, green algae and red algae. From this survey, in particular, some compounds contained in edible macroalgae exert anti-inflammatory effects with inhibition on cyclooxygenase-2 (COX-2), inducible nitric oxide synthase(iNOS) and matrix metalloproteinases (MMPs) activity regulated by nuclear factor-kappa B transcription factor that play a key role in cancer as well as inflammation, demonstrating to be able to potentially apply to development of anti-inflammatory agent for chemoprevention of cancer. Furthermore, some macroalgae and their compounds with both excellent anti-inflammatory activity and very low toxicity can select a potential candidates capable of preventing or treating several chronic inflammation such as colitis, hepatitis and gastritis, leading to cancer.

• Asian Pacific Journal of Cancer Prevention
• /
• v.16 no.13
• /
• pp.5325-5329
• /
• 2015

Farnesiferol C is a natural compound with various anti-cancer properties that belongs to the class of sesquiterpene coumarins. However, the low bioavailability of farnesiferol C limits its therapeutic potential. Here, we overcame this problem utilizing dendrosome nano-particles and evaluated the anti-cancer effect of dendrosomal farnesiferol C (DFC) on the AGS gastric cancer cell line. The 3-(4,5-dimethyl-thiazol-2yl)-2,5- diphenyl tetrazolium bromide (MTT) assay and reverse transcriptase-polymerase chain reaction (RT-PCR) were respectively used to detect the anti-proliferative properties of DFC and expression ratio of Bax/Bcl-2 as a hallmark of apoptosis. Compared to the void farnesiferol C (FC), our data showed that DFC significantly suppresses the proliferation of AGS cells in a time- and dose-dependent manner (P<0.01). Also, DFC meaningfully increased the expression ratio of Bax/Bcl-2 in AGS cells (P<0.01). The findings demonstrate that our nano-based formulation of farnesiferol C could be considered as a potential therapeutic agent in cancer targeting.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.25 no.5
• /
• pp.816-822
• /
• 2011

Kaempferol, a component of Polygonati rhizoma, is one of the herbal flavonoids, which is used in therapeutic agent for anti-hypercholesterol, anti-hypertension and anti-diabetes. And it is also known to be effective in anti-cancer therapy for breast, prostate and other type of cancers. However, the anti-cancer therapeutic mechanisms are pooly understood. To address molecular mechanism underlying kaempferol-induced anti-cancer effects, we determined the effect of kaempferol on cell growth of the lung cancer cell lines, A549, H1299 and H460. From the FACS analysis, measurement of caspase activity, DAPI and tryptophan blue staining, and DNA fragmentation assay, we found that kaempferol induces apoptosis and H460 cells are most sensitive among the tested cell lines. In addition, we performed microarray to identify the genome-wide expression profiling regulated by kaempferol. Lots of cell cycle-related genes were under-expressed, whereas the genes related to TGF-beta/SMAD pathway were over-expressed in kaempferol-treated H460 cells. Additionally, kaempferol also increased expression levels of apoptosis related genes such as death receptors, FAS, TRAIL-R and TNF-R, and casepase-8 and caspase-10. Overall, our results suggest that kaempferol promotes anti-lung cancer therapeutic effects by inducing G1 arrest and apoptosis through TGF-beta/SMAD pathway and death receptors/caspase pathway, respectively.

• Journal of the Korean Chemical Society
• /
• v.57 no.4
• /
• pp.439-446
• /
• 2013

Chitosan (CS) and hydroxypropylmethyl cellulose (HPMC) blend microspheres were prepared by water-in-oil emulsion technique and were loaded with an anti-cancer drug 5-fluorouracil (5-FU). CS-HPMC microspheres were characterized by Fourier transform infrared spectroscopy to confirm the cross-linking reaction. Scanning electron microscopy (SEM) was also used to assess the surface morphology of particles prepared. The quantity of release of 5-FU from the microspheres have been studied in terms of blend composition and amount of cross-linking agent. Differential scanning calorimetry and X-ray diffraction techniques indicated a uniform distribution of 5-FU particles in microspheres, whereas SEM suggested the spherical structure of the microspheres with slight rough surface. The in vitro drug release indicated that the particle size and release kinetics depend upon blend composition, amount of cross-linking agent used and amount of 5-FU present in the microspheres.

• Biomolecules & Therapeutics
• /
• v.24 no.3
• /
• pp.320-327
• /
• 2016

Columbianadin (CBN), a natural coumarin from Angelica decursiva (Umbelliferae), is known to have various biological activities including anti-inflammatory and anti-cancer effects. In this study, the anti-proliferative mechanism of actions mediated by CBN was investigated in HCT-116 human colon cancer cells. CBN effectively suppressed the growth of colon cancer cells. Low concentration (up to $25{\mu}M$) of CBN induced apoptosis, and high concentration ($50{\mu}M$) of CBN induced necroptosis. The induction of apoptosis by CBN was correlated with the modulation of caspase-9, caspase-3, Bax, Bcl-2, Bim and Bid, and the induction of necroptosis was related with RIP-3, and caspase-8. In addition, CBN induced the accumulation of ROS and imbalance in the intracellular antioxidant enzymes such as SOD-1, SOD-2, catalase and GPx-1. These findings demonstrate that CBN has the potential to be a candidate in the development of anti-cancer agent derived from natural products.

• Biomedical Science Letters
• /
• v.12 no.3
• /
• pp.161-170
• /
• 2006

A new piperazine derivative, 8J-8029, is a synthetic anti-cancer agent which exhibits both microtubule and topoisomerase II inhibiting activities. In this study, we investigated the ability of 8J-8029 for anti-angiogenesis and apoptosis. 8J-8029 decreased the bFGF-induced angiogenesis in the CAM and the mouse Matrigel implants, in vivo. 8J-8029 inhibited the proliferation, migration, invasion, tube fonnation, and expression of MMP-2 in BAECs. In addition, 8J-8029 reduced the cell viability in HepG2 cells, caused the production of fragmented DNA and the morphological changes corresponding to apoptosis. 8J-8029 also elicited the release of cytochrome c and the activation of caspase-3. Taken together, these results suggest 8J-8029 may be a candidate for anti-cancer agent with the ability to inhibit the angiogenesis of endothelial cells and to induce the apoptosis of tumor cells.

• Archives of Pharmacal Research
• /
• v.24 no.5
• /
• pp.397-401
• /
• 2001

In the search for new naturally occurring angiogenic inhibitory we found that culture broths from two unidentified fungal strains exerted potent inhibitory activities on capillary-like tube formation of human umbilical vein endothelial cells (HUVEC) in vitro. Two active compounds were isolated by bioassay-guided separation and their structures were identified as gliotoxin (1) and its derivative methylthiogliotoxin (2) by spectroscopic analyses. These compounds significantly inhibited the migration of HUVEC assessed by in vitro wounding migration assay and exhibited at least 10 times more potent inhibition of proliferation of HUVECs as compared with that of cancer cell lines such as HeLa, MCF-7, and KB 3-1 cells. Especially, gliotoxin having disulfide group exerted more potent activities than methylthiogliotoxin, suggesting that gliotoxin could be a useful compound for further study as an anti-angiogenic agent.

• Asian Pacific Journal of Cancer Prevention
• /
• v.14 no.11
• /
• pp.6791-6795
• /
• 2013

Apoptotic and cytotoxic activity of plant extracts obtaining from naturally growing Cynara syriaca in Turkey and cultivated C cardunculus against DLD1 colorectal cancer cells was determined. Extracts from wild and cultivated Cynara species were obtained from their vegetative parts and receptacles using hexane and applied with five different dose (0.1-1 mg/ml) as well as apigenin for MTT tests for three time periods (24, 48 and 72 hours). After cells were treated with $IC_{50}$ doses for each extract total DNA and RNA were isolated for determination of the cause of cell death. From isolated RNAs, cDNA were synthesized and amplification of p21, BCL-2 and BAX gene regions was carried out. Consequently, we found that pro-apoptotic (BAX) gene expression and a cell cycle inhibitor (p21) were induced in the presence of our artichoke extracts. In contrast, anti-apoptotic BCL-2 gene expression was reduced compared to the control group. In addition DNA fragmentation results demonstrated DLD1 cell death via apoptosis.

• Proceedings of the PSK Conference
• /
• 2003.10b
• /
• pp.242.3-243
• /
• 2003

The compound of 2"-O-benzoylcinnamaldehyde(CB-ph) is a derivative of 2"-hydroxycinnamaldehyde whcih is a methanol extract of cinnamomum cassia blume. It"s a new anti-cancer agent which has been showed to inhibit the growth of various tumor cells in vitro and in vivo. In order to investigate the effective drug concentration and bio-distribution of CB-ph, the plasma protein binding was studied. In this study, the degree of the binding of Cb-ph to various serum proteins, the binding parameters, the binding site of CB-ph in human serum albumin, and the effect of some extensive protein-binding drugs on the protein binding of CB-ph in human serum ablumin were investigated respectively by ultrafilteration and fluorescence spectrometry. (omitted)