• Nutrition Research and Practice
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• v.17 no.5
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• pp.917-933
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• 2023

BACKGROUND/OBJECTIVES: As peanuts germinate, the content of the components beneficial to health, such as resveratrol, increases within the peanut sprout. This study examined whether the ethanol extract of peanut sprout tea (PSTE) inhibits breast cancer growth and metastasis. MATERIALS/METHODS: After orthotopically injecting 4T1 cells into BALB/c mice to induce breast cancer, 0, 30, or 60 mg/kg body weight/day of PSTE was administered orally. Angiogenesis-related protein expression in the tumors and the degree of metastasis were analyzed. 4T1 and RAW 264.7 cells were co-cultured, and reverse transcription polymerase chain reaction was performed to measure the crosstalk between breast cancer cells and macrophages. RESULTS: PSTE reduced tumor growth and lung metastasis. In particular, PSTE decreased matrix metalloproteinase-9, platelet endothelial cell adhesion molecule-1, vascular endothelial growth factor-A, F4/80, CD11c, macrophage mannose receptor, macrophage colony-stimulating factor, and monocyte chemoattractant protein 1 expression in the tumors. Moreover, PSTE prevented 4T1 cell migration, invasion, and macrophage activity in RAW 264.7 cells. PSTE inhibited the crosstalk between 4T1 cells and RAW 264.7 cells and promoted the macrophage M1 subtype while inhibiting the M2 subtype. CONCLUSIONS: These results suggest that PSTE blocks breast cancer growth and metastasis to the lungs. This may be because the PSTE treatment inhibits the crosstalk between mammary cancer cells and macrophages and inhibits the differentiation of macrophages into the M2 subtype.

• Parasites, Hosts and Diseases
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• v.34 no.3
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• pp.197-206
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• 1996

Water extract of Coix locrvmn seeds (Co-Ex) was separated into several components; dissolved with Tris-Cl buffer and the supernatant (WC 1), ammonium sulfate treatment supernatant (WC2) and the pellet nvc31,9AE column chromatography of WC 1 and the peak portions; WC4, WCS and WC6. Murine peritoneal macrophages in DMEM containing 10% heat-inactivated FCS were infected with tachyzoites of ToxopIQsmc gondii, RH strain, in uifo. By adding modulators such as Co-Ex, WC 1,2,3,4.5,6 and LPS or IFN-γ for 24 hrs . toxoplasmastatic activity of macrophages was examined in relation to nitrite production. Nitrite production of macrophages was enhanced especially in the series of WC2, WC1 and the combination sample (WC1 + WC2 + WC3) by order than other components or fractions (WC4, WC5, WC6) tested . Toxoplasmastatic actions such as percentage of the inacrophages infected by T. gonnii and fold increase of T gondii in macrophages showed retroverse relations with the amount of nitrite production; i.e. as nitric oxide (NO) increased the phagocytic index of macrophages and the fold increase of tachyzoites in macrophages decreased . Nitrite (NO-2) production was increased by adding IFN-γ in all cases together with enhancement of biostatic effects. Through the results obtained, it is speculated that some components other than the non-proteinous and defatted components in Coix lacrwmn seeds may contribute to activate macrophages through induction of NO for the biostatic activity.

• Journal of Animal Science and Technology
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• v.46 no.4
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• pp.571-584
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• 2004

It is known widely that granulosa cell apoptosis leads follicular atresia and macrophages exert their effects directly and/or indirectly from the initiation to the completion of follicular atresia by phagocytosis of apoptotic bodies and secretion of various cytokines. However, the site of initiation, propagation routes and the elimination methods of apoptotic bodies, and the time and methods of penetration of macrophages into the follicles are not known completely. Using pig(Yorkshire-breed) ovary, immunohistochemical studies with TUNEL for apoptotic bodies and pig macrophage monoclonal antibody 4E9 for macrophages, and light and transmission electron microscopic observations were performed. In the pig, follicular atresia began with the granulosa cell apoptosis, and the apoptosis of theca intema cells occured at the same time. The apoptosis of granulosa cells initiated randomly within the granulosa cell layer and propagated rapidly into the whole layer. Ultrastructura1ly, apoptotic granulosa cells showed characteristic pyknotic and deformed nucleus and intracytoplasmic vesicles. Apoptotic bodies were eliminated by intact granulosa cells and macrophages. Intact granulosa cells ingested apoptotic bodies transiently, soon after they fell into the apoptosis. Finally, apoptotic bodies and degenerated oocyte were phagocytosed by macrophages. Macrophages entered the ovarian follicle at the time of initiation of granulosa cell apoptosis, and migrated with the progression of apoptosis. By elimination of theca cells, macrophages contributed the completion of follicular atresia These results will provide valuable informations on the study of the interrelation between macrophage and ovarian follicular atresia.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.11
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• pp.1564-1570
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• 2016

The present study investigated the immunomodulatory effects of high-purity ${\beta}$-1.3/1.6-glucan on macrophages, natural killer (NK) cells, and T cell-mediated factors. Effect of high-purity ${\beta}$-1.3/1.6-glucan on cytotoxicity in macrophages was investigated. Using macrophages, cytotoxicity of high-purity ${\beta}$-1.3/1.6-glucan was evaluated by MTT assay. We treated high-purity ${\beta}$-1.3/1.6-glucan at concentrations of 10, 50, 100, 150, 200, and $250{\mu}g/mL$ in macrophages. High-purity ${\beta}$-1.3/1.6-glucan did not affect macrophage viability. Phagocytic activity was assessed using zymosan. Activity of high-purity ${\beta}$-1.3/1.6-glucan on macrophages significantly increased as compared with zymosan. We treated high-purity ${\beta}$-1.3/1.6-glucan to murine NK cells co-incubated with YAC-1 cells. High-purity ${\beta}$-1.3/1.6-glucan resulted in significantly increased activity of NK cells as compared with the control. In addition, treatment of macrophages with high-purity ${\beta}$-1.3/1.6-glucan resulted in significantly increased activity of T cell-mediated cytokine (IL-2, IL-12, $IFN-{\gamma}$, and $TNF-{\alpha}$) levels and CD4+/CD8+ T cells as compared with the control. In conclusion, high-purity ${\beta}$-1.3/1.6-glucan could enhance the immune response through activation of macrophages, NK cells, and T cell-mediated factors.

• Proceedings of the Ginseng society Conference
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• 2006.05a
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• pp.83-88
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• 2006

In this study we examined the potential for the synergistic augmentation of the activity of inflammatory mouse peritoneal macrophages by stimulation with RGAP combined with IFN-$\gamma$. The moderate augmentative effect induced by preincubation with RGAP was observed in the production of IL-1, IL-6 and NO but not TNF-$\alpha$. In addition, IFN-$\gamma$ had a low activating effect. Following preincubation with both RGAP A and IFN-$\gamma$, a marked enhancement of secretory activity and tumoricidal activity was noted in mouse peritoneal macrophages. Treatment of peritoneal macrophage with combination increased the generation of IL-1, IL-6, TNF-$\alpha$ and NO, whereas the production of reactive oxygen species were not altered. These results demonstrate the synergistic effects on macrophage function of RGAP in combination with IFN-$\gamma$ and suggest that the ability of IFN-$\gamma$ to prime macrophages to produce secretory molecules in response to RGAP may have implications for immunotherapy with this combination.

• Journal of Acupuncture Research
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• v.27 no.4
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• pp.223-231
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• 2010

Objectives : The objective of this study is to study the effects of Euonymi Lignum Suberatatum pharmacopuncture solution on NO and IL-6 production in macrophage. Methods : At first, the RAW 264.7 macrophage was subclutured. In order to evaluate cytotoxicity, MTT assay performed. Then, the cell was induced by LPS, INF-$\gamma$ and Experimental groups were divided into five(Normal, Control, Euonymi Lignum Suberatatum 100, 200, $300{\mu}g/m{\ell}$). Then Euonymi Lignum Suberatatum pharmacopuncture solution was put into cell. We measured IL-6, iNOS, NO. Results : The cytotoxic effect of Euonymi Lignum Suberatatum pharmacopuncture solution in RAW 264.7 macrophage was not appeared. $300{\mu}g/m\ell$ Euonymi Lignum Suberatatum pharmacopuncture solution inhibited IL-6 production in LPS, INF-$\gamma$-stimulated RAW 264.7 macrophages significantly. Euonymi Lignum Suberatatum pharmacopuncture solution inhibited iNOS revelation in LPS, INF-$\gamma$-stimulated RAW 264.7 macrophages. All group of Euonymi Lignum Suberatatum pharmacopuncture solution inhibited NO production in LPS, INF-$\gamma$-stimulated RAW 264.7 macrophages significantly. Conclusions : Our study demonstrated that Euonymi Lignum Suberatatum pharmacopuncture solution had an inhibition effect on NO production, iNOS revelation, IL-6 production. So Euonymi Lignum Suberatatum pharmaco puncture solution may have an Anti-inflammation effect.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.6
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• pp.3569-3573
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• 2013

Aim: Pendulous monkshood root is traditionally used for the treatment of several inflammatory pathologies such as rheumatisms, wounds, pain and tumors in China. In this study, the anti-inflammatory and anticancer activities and the mechanism of crude ethanol extract of pendulous monkshood root (EPMR) were evaluated and investigated in vitro. Materials and Methods: The cytotoxic effects of EPMR on different tumor cell lines were determined by the MTT method. Cell apoptosis and cell nucleus morphology were assessed by Hoechst 33258 staining. Moreover, nitric oxide (NO) levels and intracellular oxidative stress in peritoneal macrophages were determined to further elucidate mechanisms of action. Results: The data showed that EPMR could produce significant dose-dependent toxicity on three kinds of tumor cells. Furthermore, EPMR displayed obvious anti-inflammatory effects on LPS-induced mouse peritoneal macrophages at the dosage of 4 - 200 ${\mu}g/mL$. The results demonstrated the therapeutic potential of Pendulous Monkshood Root on cancer and inflammatory diseases. Conclusion: Our results indicate that EPMR has anti-inflammatory and anticancer properties, suggesting that pendulous monkshood root may be a useful anti-tumor and anti-inflammatory reagent in the clinic.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• v.22 no.1
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• pp.29-62
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• 2018

We investigate a class of HIV infection models with two kinds of target cells: $CD4^+$ T cells and macrophages. We incorporate three distributed time delays into the models. Moreover, we consider the effect of humoral immunity on the dynamical behavior of the HIV. The viruses are produced from four types of infected cells: short-lived infected $CD4^+$T cells, long-lived chronically infected $CD4^+$T cells, short-lived infected macrophages and long-lived chronically infected macrophages. The drug efficacy is assumed to be different for the two types of target cells. The HIV-target incidence rate is given by bilinear and saturation functional response while, for the third model, both HIV-target incidence rate and neutralization rate of viruses are given by nonlinear general functions. We show that the solutions of the proposed models are nonnegative and ultimately bounded. We derive two threshold parameters which fully determine the positivity and stability of the three steady states of the models. Using Lyapunov functionals, we established the global stability of the steady states of the models. The theoretical results are confirmed by numerical simulations.

• Journal of the Korean Society of Visualization
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• v.15 no.3
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• pp.41-46
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• 2017

The apoptosis of macrophages occurs throughout all stages of atherosclerosis. It is known to constitute atheromatous plaque, increase plaque instability, and thus contribute to the development of atherosclerosis. However, there still remains much to be elucidated on how the apoptotic macrophages affect the endothelial cells and also how they contribute to the development of atherosclerosis. Here we present a microfluidic system, which enables co-culture of apoptotic macrophages and endothelial cells in fibrin gel that mimics in vivo extracellular matrix. With the system, we can investigate the effect of macrophage apoptosis on vascular endothelial cells by quantitatively analyzing the level of reactive oxygen species of HUVECs, integrity of VE-cadherin and cell proliferation. We expect that this system could be utilized further for understanding different mechanisms of apoptotic macrophage on the development of atherosclerosis.

• YAKHAK HOEJI
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• v.50 no.3
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• pp.184-190
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• 2006

We investigated the effect of fresh Rehmanniae radix methanol extracts (RGMeOH) on the in vitro production of cytokines by splenocytes and peritoneal macrophages isolated from C57BL/6 mice. Peritoneal macrophages and splenocytes were incubated with various concentrations of RGMeOH in the presence of $10\;{\mu}g/ml$ of lipopolysaccharide (LPS) $1\;{\mu}g/ml$ of concanavalin A (Con A) for cytokine assay, These results showed that RGMeOH remarkably attenuated LPS-increased production of $TNF-{\alpha}$ but not IL-6 by peritoneal macrophages and enhanced LPS-stimulated production of IL-10 in a dose-dependent manner RGMeOH significantly augmented the LPS- or Con A-stimulated production of IL-2 and $IFN-{\gamma}$ by splenocytes. These findings suggest that RGMeOH may attenuate inflammatory responses through down-regulation of $TNF-{\alpha}$ and up-regulation of IL-10, and that RGMeOH may up-regulate cell-mediated immune responses through increase in IL-2 and $IFN-{\gamma}$ production.