Kim, Chi-Hong;Choi, Youn-Kyung;Kim, Woo-Young;Shin, Yong-Cheol;Ko, Seong-Gyu
Journal of Physiology & Pathology in Korean Medicine
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v.25
no.6
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pp.968-974
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2011
Saussurea lappa Clarke is a well-known transitional medicine in Asia including Korea, China and Japan. It has been reported that Clarke has diverse effects such as anti-viral, anti-inflammatory, anti-cancer in human gastric cells and human prostate cancer cells. However, the anti-cancer effects and the mechanism of actions of Saussurea lappa Clarke are still unknown in breast cancer. In this study, we observed that Saussurea lappa Clarke inhibits the cell growth in a dose- and time-dependent manner in highly-metastatic MDA-MB-231 breast cancer cells. In order to examine whether Saussurea lappa Clarke suppresses cell growth inducing apoptosis cell death or cell cycle arrest, we analyzed DNA contents and cell cycle distribution using a flow cytometer and western blotting in MDA-MB-231 cells. We suggest that Saussurea lappa Clarke dose not induced apoptosis and induced G2/M phase cell cycle arrest. Moreover, Saussurea lappa Clarke also decreased the expression level of metastasis-angiogenesis releated protein such as VEGF. However, dose not changed the expression level of metastasis related protease MMP-1 in highly-metastatic MDA-MB-231 breast cancer cells. Therefore, Saussurea lappa Clarke might be good and useful chemotherapy agent highly-metastatic breast cancer patients.
Kim, Jung-Ae;Kang, You-Ra;Thapa, Dinesh;Lee, Jong-Suk;Park, Min-A;Lee, Kyung-Hee;Lyoo, Won-Seok;Lee, Yong-Rok
Biomolecules & Therapeutics
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v.17
no.4
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pp.422-429
/
2009
Invasion and metastasis is the main cause of cancer mortality. Angiogenesis is a prerequisite for the tumor growth and metastasis. Matrix metalloproteinases (MMPs) are the key enzymes playing in the invasive growth and metastasis of cancer as well as angiogenesis. Xanthohumol, a prenylated chalcone of the Hop plant (Humulus lupulus L), has been reported to suppress cancer invasion and angiogenesis. In the present study, we investigated the antiinvasive effects of xanthohumol (1) and its synthetic derivatives, 4'-O-methylxanthohumol SEM ether (2), xanthohumol C (3), and xanthohumol C MOM ether (4) in relation to MMP expression in HT-1080 human fibrosarcoma cells. The compound 1 and its derivative, 3 and 4, significantly inhibited serum-induced HT-1080 cell invasion, and 12-O-tetradecanoylphorbol-13-acetate (TPA)-enhanced activity and expression level of MMP-2 and MMP-9 in a concentration-dependant manner. In addition, they inhibited TPA-enhanced expression of MT1-MMP with relatively weak inhibition in tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2 level. The compound 1 significantly decreased the cell viability, whereas the derivatives, 2 and 3 showed no cytotoxicity, and compound 4 showed slight cytotoxicity in the cells. Furthermore, in a chick chorioallantoic membrane (CAM) assay, the derivatives 3 and 4 dose-dependently suppressed vascular endothelial growth factor (VEGF)-induced angiogenesis, which is similar to that of compound 1. Taken together, the results indicate that compounds 3 and 4 may be valuable anti-angiogenic agents in the treatment of chronic diseases such as cancer and inflammation working through suppression of MMP-2 and MMP-9.
Proceedings of the Korean Society of Applied Pharmacology
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2001.11a
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pp.100-100
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2001
Hypoxia is a pathophysiological condition that occurs during injury, ischemia, and stroke. Hypoxic stress induces the expression of genes associated with increased energy flux, including the glucose transporters Glutl and Glut3, several glycolytic enzymes, nitric oxide synthase, erythropoietin and vascular endothelial growth factor. Induction of these genes is mediated by a common basic helix-loop-helix PAS transcription complex, the hypoxia-inducible factor-l${\alpha}$ (HIF-1${\alpha}$)/ aryl hydrocarbon receptor nuclear translocator (ARNT). Insulin plays a central role in regulating metabolic pathways associated with energy storage and utilization. It triggers the conversion of glucose into glycogen and triglycerides and inhibits gluconeogenesis. Insulin also induced hypoxia-induced genes. However the underlying mechanism is unestablished. Here, we study the possibility that transcription factor HIF-1${\alpha}$ is involved in insulin-induced gene expression. We investigate the mechanism that regulates hypoxia-inducible gene expression In response to insulin We demonstrate that insulin increases the transcription of hypoxia- inducible gene. Insulin-induced transcription is not detected in Arnt defective cell lines. Under hypoxic condition, HIF- l${\alpha}$ stabilizes but does not under insulin treatment. Insulin-induced gene expression is inhibited by presence of PI-3 kinase inhibitor and Akt dominant negative mutant, whereas hypoxia-induced gene expression is not. ROS inhibitor differently affects insulin-induced gene expressions and hypoxia-induced gene expressions. Our results demonstrate that insulin also regulates hypoxia-inducible gene expression and this process is dependent on Arnt. However we suggest HIF-l${\alpha}$ is not involved insulin-induced gene expression and insulin- and hypoxia- induces same target genes via different signaling pathway.
Kim Mi-Ja;Kim Youngok;Chung Joo-HO;Kim Jong-Woo;Kim Hye-Kyung
Journal of Nutrition and Health
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v.38
no.8
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pp.649-655
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2005
Nutrigenomics refers to research that investigates the interaction between nutrition and the human genome. Caffeine in tea and coffee is widely and routinely consumed by people. This study was performed to confirm the effect of caffeine treatment on the gene expression and cytokine profiling in 3T3-L1 adipocyte cells using microarray and protein array methodology. Treatment of caffeine in 3T3-L1 adipocyte cells increased expression of several genes related with obesity including adipocyte C1Q and collagen domain containing (ACDC), Adipsin (ADN), uncoupling protein 3(UCP3), while glyceraldehyde-3-phosphate dehydrogenase (GAPDH), which is known as lipid storage enzyme, was decreased by caffeine treatment. Furthermore, cytokines, such as interleukin-3 (IL-3), interleukin-12(IL-12), interleukin-13 (IL-13), granulocyte colony stimulating factor (GCSF), granulocyte macrophage colony stimulating factor (GM-CSF) and vascular endothelial growth factor (VEGF), were decreased in caffeine treated 3T3-L1 adipocyte cells. These results provided interesting information about the genes related with caffeine and cytokine expression profiling in obesity.
Journal of the Korean Society of Food Science and Nutrition
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v.43
no.3
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pp.374-380
/
2014
In this study, the anti-inflammatory effects of Lespedeza cuneata extract on macrophages and wound-healing in wound-induced animal experiments were investigated. In an anti-inflammatory test, 0.1 mg/mL of Lespedeza cuneata extract did not affect growth of RAW 264.7 cells, and Lespedeza cuneata extract suppressed nitric oxide (NO) generation from inflammation-induced macrophages in a concentration-dependent manner. Wounds on the skin of rats were treated with vehicle containing Lespedeza cuneata extract (SSP), vehicle (SCO), and commercial ointment (CCO). The wound and scar sizes in the SSP group were significantly reduced in comparison to the SCO and CCO groups (P<0.05). The epidermis and dermis of the SSP group also recovered faster than the SCO group based on Masson's trichrome staining. The gene expression levels of vascular endothelial growth factor (VEGF) decreased and transforming growth factor-beta 1 (TGF-${\beta}1$) increased in wound tissue from the SSP group compared to that from the SCO group. These results show that Lespedeza cuneata extract accelerates wound-healing through anti-inflammatory activity and induction of collagen regeneration as well as reduces the scar area surrounding wounds. Accordingly, Lespedeza cuneata extract could be useful as a cosmeceutical in the cosmetic industry.
Soo Hyun Kim;Kyu-Sang Sim;Jung Yoon Cheon;Jae-Woong Jang;Su Jin Jeong;Ye Hei Seo;Hye Myoung Ahn;Bong-Geun Song;Gi-Seok Kwon;Jung-Bok Lee
Journal of Life Science
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v.33
no.3
/
pp.234-241
/
2023
At present, many countries around the world are legalizing cannabis and its products, and research on various treatments using cannabis is being actively conducted. However, the cannabis plant contains other compounds whose biological effects have not yet been established. We investigated the effect of cannabidiol (CBD) on hair growth in human dermal papilla cells (HDPCs). 2,2'-Azino-bis (3-ethylbenzothiazolin-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays were performed to determine the antioxidant activity of CBD. The HDPCs viability of CBD was examined via water-soluble tetrazolium salt (WST-1) assay. The expression of hair-loss-related markers in HDPCs by CBD treatment was analyzed by real-time PCR and western blotting. The DPPH, ABTS radical scavenging activity assay showed that CBD had superior antioxidant activities. In HDPCs, CBD increased cellular proliferation at concentrations without cytotoxicity. It also increased the expressions of fibroblast growth factor 1 (FGF1), fibroblast growth factor 7 (FGF7), vascular endothelial growth factor (VEGF), and insulin-like growth factor (IGF). These results correlated with a decrease in the expression of inhibition-related factors, such as androgen receptor (AR) and transforming growth factor beta 1 (TGF-B1). Moreover, CBD resulted in a significant increase in the phosphorylation of AKT and extracellular signal-regulated kinase (ERK). Therefore, it is suggested that CBD may be a potential remedy for the treatment of alopecia.
Objective : Pituitary apoplexy is life-threatening clinical syndrome caused by the rapid enlargement of a pituitary tumor due to hemorrhage and/or infarction. The pathogenesis of pituitary apoplexy is not completely understood. We analyzed the magnetic resonance imaging (MRI) of pituitary tumors and subsequently correlated the radiological findings with the clinical presentation. Additionally, immunohistochemistry was also performed to determine whether certain biomarkers are related to radiological apoplexy. Methods : Thirty-four cases of pituitary adenoma were enrolled for retrospective analysis. In this study, the radiological apoplexy was defined as cases where hemorrhage, infarction or cysts were identified on MRI. Acute clinical presentation was defined as the presence of any of the following symptoms: severe sudden onset headache, decreased visual acuity and/or visual field deficit, and acute mental status changes. Angiogenesis was quantified by immunohistochemical expression of fetal liver kinase 1 (Flk-1), neuropilin (NRP) and vascular endothelial growth factor (VEGF) expression, while microvascular density (MVD) was assessed using Endoglin and CD31. Results : Clinically, fourteen patients presented with acute symptoms and 20 for mild or none clinical symptoms. Radiologically, fifteen patients met the criteria for radiological apoplexy. Of the fifteen patients with radiologic apoplexy, 9 patients presented acute symptoms whereas of the 19 patient without radiologic apoplexy, 5 patients presented acute symptoms. Of the five biomarkers tracked, only VEGF was found to be positively correlated with both radiological and nonradiological apoplexy. Conclusion : While pituitary apoplexy is currently defined in cases where clinical symptoms can be histologically confirmed, we contend that cases of radiologically identified pituitary hemorrhages that present with mild or no symptoms should be designated subacute or subclinical apoplexy. VEGF is believed to have a positive correlation with pituitary hemorrhage. Considering the high rate of symptomatic or asymptomatic pituitary tumor hemorrhage, additional studies are needed to detect predictors of the pituitary hemorrhage.
Chemotherapy is the primary therapy for malignant lymphoma (ML). However, the clinical outcome is still far from satisfactory. Consequently, an understanding of the mechanism of modulating cancer cell invasion, migration and metastasis is important for the development of more effective chemotherapeutic agents. FNC, 2'-deoxy-2'-${\beta}$-fluoro-4'-azidocytidine, a novel cytidine analogue, has demonstrated significantly inhibitory effects on proliferation of several non-Hodgkin lymphoma (NHL) cell lines. A previous study indicated that FNC effectively inhibited the growth of Raji and JeKo-1 cells in dose-time dependent effects with $IC_{50}$ values of $0.2{\mu}M$ and $0.097{\mu}M$, respectively. This study was focused on investigating the anti-invasive properties of FNC on NHL cells and its potential mechanisms of action. Cell adhesion and transwell chamber assays were utilized to investigate the anti-invasive effects of FNC on Raji and JeKo-1 cells. Real-time PCR and Western blotting were employed to qualify the expression of ${\beta}$-catenin, the glycogen synthase kinase-3 beta (GSK-$3{\beta}$), E-cadherin vascular endothelial growth factor (VEGF), matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9). The results revealed that FNC remarkably inhibited the adhesion, migration and invasion of two human aggressive non-Hodgkin lymphoma cell lines in a dose dependent manner. Furthermore, ${\beta}$-catenin, MMP-2, MMP-9, VEGF mRNA and protein levels were decreased after FNC treatment, while GSK-$3{\beta}$ and E-cadherin increased. Our studies thus provide evidence and a rationale that FNC may offer an effective chemotherapeutic agent by regulating the invasion and metastasis of aggressive non-Hodgkin lymphoma via inhibition of the Wnt/${\beta}$-catenin signaling pathway.
Objective: To investigate the expression of endogenous hypoxia-related markers identified as being involved in vulvar squamous cell carcinoma (VSCC). Methods: We performed immunohistochemical staining of hypoxia-inducible factor-$1{\alpha}$ (HIF-$1{\alpha}$), glucose transporter-1 (GLUT-1), carbonic anhydrase 9 (CA-9) and vascular endothelial growth factor (VEGF), on tissue sections of 25 VSCC patients, 10 vulvar intraepithelial neoplasia (VIN) patients and 12 healthy controls. Results: HIF-$1{\alpha}$ expression was found in all sections, with no significant difference between controls, VIN and VSCC sections (all P<0.05). Glut-1 expression was found in 25% of control, 90% of VIN and 100% of VSCC sections. A significant difference between control and VIN or VSCC was observed (all P<0.05), while no difference was found between VIN and VSCC sections (P>0.05). CA-9 expression was negative in control sections, but it was found in 30% of VIN sections and 52% of VSCC sections with strong staining. Similarly, CA-9 expression also showed obvious differences between controls and VIN or VSCC sections (all P<0.05). However, there was no significant difference between VIN and VSCC (P>0.05). There were only 25% of control sections with weak VEGF expression, while strong staining was found in about 60% of VIN sections and 25% of VSCC sections (all P<0.05). In addition, a difference was also found between VIN and VSCC sections (P<0.05). Conclusion: Expression of endogenous hypoxia markers (HIF-$1{\alpha}$, GLUT-1, CA-9 and VEGF) might be involved in the malignant progression of VSCC.
Purpose: Glabridin (GD) is a bio-available isoflavane isolated from the root extract of licorice (Glycyrrhiza glabra L.). It exhibits a variety of pharmacological activities such as anti-inflammatory and anti-oxidant activities. However, extracellular vesicles (EVs) secretion and the anti-cancer mechanism of action remains largely unknown. The present study investigates the anticancer effects of GD by determining the inhibition of EVs secretion in the human breast cancer cell line, MDA-MB-231. Methods: Cell viability, reactive oxygen species (ROS) production, migration, invasion rate, and vascular endothelial growth factor (VEGF) concentration were assessed in MDA-MB-231 cells treated with increasing concentrations of GD (0.1, 1, 5, 10, 20 µM). Subsequently, EV secretion and exosomal DEL-1 protein expression were evaluated to determine the anticancer effects of GD. Results: The results showed that GD significantly inhibited the cell proliferation of MDA-MB-231 cells in a dose- or time-dependent manner. Also, ROS production and apoptosis marker protein cleaved caspase-3 were significantly increased in GD-treated MDA-MB-231, compared to control. Furthermore, GD exposure resulted in significantly decreased not only migration and invasion rates but also the VEGF concentration, thereby contributing to a reduction in angiogenesis. Interestingly, the concentration and number of EVs as well as EV marker proteins, such as CD63 and TSG101, were decreased in GD-treated MDA-MB-231 cells. Markedly, extracellular matrix protein DEL-1 as angiogenesis factor was decreased in EVs from GD-treated MDA-MB-231 cells. Conclusion: This study identifies that the anti-cancer molecular mechanism of GD is exerted via inhibition of angiogenesis and EVs secretion, indicating the potential of GD as a chemotherapeutic agent for breast cancer.
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