• Title/Summary/Keyword: mouse spleen

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Lactoferrin Combined with Retinoic Acid Stimulates B1 Cells to Express IgA Isotype and Gut-homing Molecules

  • Kang, Seong-Ho;Jin, Bo-Ra;Kim, Hyeon-Jin;Seo, Goo-Young;Jang, Young-Saeng;Kim, Sun-Jin;An, Sun-Jin;Park, Seok-Rae;Kim, Woan-Sub;Kim, Pyeung-Hyeun
    • IMMUNE NETWORK
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    • v.15 no.1
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    • pp.37-43
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    • 2015
  • It is well established that TGF-${\beta}1$ and retinoic acid (RA) cause IgA isotype switching in mice. We recently found that lactoferrin (LF) also has an activity of IgA isotype switching in spleen B cells. The present study explored the effect of LF on the Ig production by mouse peritoneal B cells. LF, like TGF-${\beta}1$, substantially increased IgA production in peritoneal B1 cells but little in peritoneal B2 cells. In contrast, LF increased IgG2b production in peritoneal B2 cells much more strongly than in peritoneal B1 cells. LF in combination with RA further enhanced the IgA production and, interestingly, this enhancement was restricted to IgA isotype and B1 cells. Similarly, the combination of the two molecules also led to expression of gut homing molecules ${\alpha}4{\beta}7$ and CCR9 on peritoneal B1 cells, but not on peritoneal B2 cells. Thus, these results indicate that LF and RA can contribute to gut IgA response through stimulating IgA isotype switching and expression of gut-homing molecules in peritoneal B1 cells.

Effects of Pre-conditioning dose on the Immune Kinetics and Cytokine Production in the Leukocytes Infiltrating GVHD Tissues after MHC-matched Transplantation

  • Choi, Jung-Hwa;Yoon, Hye-Won;Min, Chang-Ki;Choi, Eun-Young
    • IMMUNE NETWORK
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    • v.11 no.1
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    • pp.68-78
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    • 2011
  • Background: Graft-versus-host disease (GVHD) is a huddle for success of hematopoietic stem cell transplantation. In this study, effects of irradiation dose on immune kinetics of GVHD were investigated using B6 ${\rightarrow}$ BALB.B system, a mouse model for GVHD after MHC-matched allogeneic transplantation. Methods: BALB.B mice were transplanted with bone marrow and spleen cells from C57BL/6 mice after irradiation with different doses. Leukocytes residing in the peripheral blood and target organs were collected periodically from the GVHD hosts for analysis of chimerism formation and immune kinetics along the GVHD development via flow cytometry. Myeloid cells were tested for production of IL-17 via flow cytometry. Results: Pre-conditioning of BALB.B hosts with 900 cGy and 400 cGy resulted in different chimerism of leukocytes from the blood and affected survival of GVHD hosts. Profiles of leukocytes infiltrating GVHD target organs, rather than profiles of peripheral blood leukocytes (PBLs), were significantly influenced by irradiation dose. Proportions of IL-17 producing cells in the infiltrating $Gr-1^+$ or $Mac-1^+$ cells were higher in the GVHD hosts with high does irradiation than those with low dose irradiation. Conclusion: Pre-conditioning dose affected tissue infiltration of leukocytes and cytokine production by myeloid cells in the target organs.

Production and characterization of monoclonal antibodies against rabies virus (광견병바이러스에 대한 단크론항체 생산 및 특성)

  • Lee, Seung-Chul;Yoon, Young-Sim;Song, Yun-Kyung;Woo, Gye-Hyeong;Jean, Young-Hwa;Kang, Shien-Young
    • Korean Journal of Veterinary Service
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    • v.33 no.2
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    • pp.105-111
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    • 2010
  • Rabies virus which belongs to the genus Lyssavirus of the family Rhabdoviridae is known as a highly neurotropic virus and causes fatal encephalitis accompanied by severe neurological symptoms in almost all mammals, including humans. In this study, monoclonal antibodies (MAbs) against rabies virus were produced, characterized and applications of MAbs as diagnostic reagents were assessed Spleen and inguinal lymph node cells from Balb/c mouse immunized with purified rabies virus were fused with SP2/O myeloma cells using polyethylene glycol (PEG) and hybridoma cells producing rabies virus-specific MAbs were screened by an indirect fluorescent antibody test. A total of ten MAbs were produced against rabies virus. The protein specificity and neutralizing activity of MAbs were determined by Western blot analysis and fluorescent antibody virus neutralization test, respectively. As a result, two MAbs, 5G3 and 6H4 had specificity for nucleoprotein (N protein) and two other MAbs, 5B1 and 5C1 had neutralizing activity for rabies virus. Some MAbs recognized the rabies virus-infected bovine brain stem cells by immunohistochemistry (IHC) assay. In conclusion, it was confirmed that MAbs produced in this study were rabies virusspecific and could be used as reliable diagnostic reagents for the detection of rabies virus.

A Study on the correlation between Sung-Jung' concept of Sasang Constitutional Medicine and Brain (사상의학(四象醫學)에 나타난 성정(性情)의 개념과 뇌(腦)와의 상관성에 관한 고찰)

  • Kim, Jong-Weon;Seul, Yu-Kyung
    • Journal of Sasang Constitutional Medicine
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    • v.12 no.2
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    • pp.17-33
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    • 2000
  • Purpose of this study is to investigate the correlation between Sung-Jung' concept of Sasang Constitutional Medicine and Brain. So, After studying the meaning of Sung-Jung' concept of Sasang Constitutional Medicine, I made a comparative study through the structure, function, development of Brain. The conclusions were as follows. 1. Human's brain acts a rational, control his actions. and It manage human body's physiology and pathology. and It perceive his surroundings, express his emotion through comprehension, synthesis, judgement about information from various fields. and It's abnormality bring about a spiritual, bodily injury. Therefore, human's brain have many correlation with Sung-Jung' concept of Sasang Constitutional Medicine. 2. Neocortex' function have many correlation with Sung' concept of Hearing-Sight-Smell-Taste (聽視嗅味=sensation=a highly mental capacity) through Ear-Eye-Nose-Mouse(耳目鼻?). 3. Limbic-system'function have many correlation with Jung' concept of Sorrow-Anger-Pleasure-Joy(哀怒喜榮=emotion) through Lung-Spleen-Liver-Kidney(肺脾肝腎) 4. Brain-stem' function have many correlation with vitalistic concept through Qui of Sorrow - Anger - Pleasure - Joy(哀怒喜樂之氣)' rise and fall. 5. Relation of emotions and diseases through Limbic system and Autonomic nervous system have many correlation with relation of Sung-Jung and diseases of Sasang Constitutional Medicine 6. Left-hemisphere' function that has superior power of verbal, analysis, logicality, consideration have many correlation with tendency of Soeumin and Taeumin. and Right-hemisphere' function that has superior power of emotion, non-verbal, imagination, spatial perception have many correlation with tendency of Soyangin and Taeyangin.

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Immunoglobulin Can Be Functionally Regulated by Protein Carboxylmethylation in Fc Region

  • Park Jong-Sun;Cho Jae-Youl;Kim Sung-Soo;Bae Hyun-Jin;Han Jeung-Whan;Lee Hyang-Woo;Hong Sung-Youl
    • Archives of Pharmacal Research
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    • v.29 no.5
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    • pp.384-393
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    • 2006
  • Protein carboxylmethylation methylates the free carboxyl groups in various substrate proteins by protein carboxyl O-methyltransferase (PCMT) and is one of the post-translational modifications. There have been many studies on protein carboxylmethylation. However, the precise functional role in mammalian systems is unclear. In this study, immunoglobulin, a specific form of $\gamma-globulin$, which is a well-known substrate for PCMT, was chosen to investigate the regulatory roles of protein carboxylmethylation in the immune system. It was found that the anti-BSA antibody could be carboxylmethylated via spleen PCMT to a level similar to $\gamma-globulin$. This carboxylmethylation increased the hydrophobicity of the anti-BSA antibody up to 11.4%, and enhanced the antigen-binding activity of this antibody up to 24.6%. In particular, the Fc region showed a higher methyl accepting capacity with 80% of the whole structure level. According to the amino acid sequence alignment, indeed, 7 aspartic acids and 5 glutamic acids, as potential carboxylmethylation sites, were found to be conserved in the Fc portion in the human, mouse and rabbit. The carboxylmethylation of the anti-BSA antibody was reversibly demethylated under a higher pH and long incubation time. Therefore, these results suggest that protein carboxylmethylation may reversibly regulate the antibody-mediated immunological events via the Fc region.

The Experimental Study on the Anti-Allergic Rhinitis Effects of the Sinichengpae-um (신이청매음(辛夷淸肺飮)이 알레르기 비염(鼻炎)에 미처는 효과(效果)에 대한 실험적(實驗的) 연구(硏究))

  • Kang, Sang-Hun;Sim, Sung-Yong;Byun, Hak-Sung;Kim, Kyung-Jun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.18 no.3
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    • pp.18-25
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    • 2005
  • Objectives: It has a growing interest in the prevention and medical treatment of allergic rhinitis. According to many studies, it's known that Sinicheongpye-um has the inhibitory effect on the allergic rhinitis. We have studied effect of the mice on OVA-induced Production of IL-4, IL-5, $Interferone-{\gamma}$ by Murine Splenocytes and effect of OVA-induced Total IgE. Methods: Mixing Ovalbumin(OVA) $10{\mu}g$ into PBS(phoshate buffered saline) and $Al(OH)_3$, gel solution and changing into $1\;m{\ell}$, we made it into OVA solution. That was administered to normal group. After the last administration into abdominal cavity, we caused allergic rhinitis in nasal cavity of mouse of control group and sample group administering 0.1% solution dropwise 3 times a day for 7 days. Keeping separated serum at -20 degree and after refloating spleen cells, cultivating the cells and centrifuging the upper liquid and keeping it at -20 degree, we measured the amount of IL-4. IL-5, $Interferone-{\gamma}$ and OVA-induced Total IgE by ELISA. Results: 1. In Total IgE, Sinichengpae-um treated group was proved significant inhibitory effect.(p<0.05) 2. In IL-4 study, Sinichengpae-um treated group was proved significant inhibitory effect.(p<0.005) 3. In IL-4 study, Sinichengpae-um treated group was proved significant inhibitory effect.(p<0.001) 4. In $Interferone-{\gamma}$ study, Sinichengpae-um treated group showed a increasing tendency. Conclusion: Based on the above result, it is considered that Sinichengpae-um has the inhibitory effect on the allergic rhinitis of mice and suggested thai it could be used in relieving patients of the symptoms which are caused by allergic rhinitis.

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Molecular cloning and expression of black rockfish Sebastes schlegelii p47-phox (neutrophil cytosolic factor 1)

  • Kim, Ki-Hyuk;Baeck, Gun-Wook;Kim, Mu-Chan;Park, Chan-Il
    • Journal of fish pathology
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    • v.22 no.2
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    • pp.137-146
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    • 2009
  • The black rockfish Sebastes schlegelii neutrophil cytosolic factor components p47 phox (phagocyte oxidase) cDNA was cloned. The sequence of the cDNA showed that rockfish p47 phox cDNA consisted of 1,952 bp contained open reading frame encoding predicted polypeptide of 420 amino acids. Additionally analysis of the p47 phox amino acid sequence showed two potential SH3 domains. The functional domains are highly conserved in many animals, though the sequence of the components of the black rockfish showed low homology with that of mammals. The deduced amino acid sequence of the black rockfish p47 phox was similar to those of the carp (60.4%), zebrafish (59,2%), rainbow trout (68.5%), xenopus (55.2%), mouse (54.2%), rabbit (54.5%), rat (53.7%), and chicken (50.9%). The expression of the rockfish p47 phox molecule was induced in peripheral blood leukocytes (PBLs) from 1 to 12 h following LPS stimulation, with a peak at 6 h after the stimulation, and which increased at 1, 3, and 12 h after treated with Poly I:C compared with the control. The rockfish p47 phox gene was expressed in various tissues of healthy fish. The level of p47 phox expression was high in the PBLs, kidney and spleen.

Oligonol promotes anti-aging pathways via modulation of SIRT1-AMPK-Autophagy Pathway

  • Park, Seul-Ki;Seong, Rak-Kyun;Kim, Ji-Ae;Son, Seok-Jun;Kim, Younghoon;Yokozawa, Takako;Shin, Ok Sarah
    • Nutrition Research and Practice
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    • v.10 no.1
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    • pp.3-10
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    • 2016
  • BACKGROUND/OBJECTIVES: Oligonol, mainly found in lychee fruit, is an antioxidant polyphenolic compound which has been shown to have anti-inflammatory and anti-cancer properties. The detailed mechanisms by which oligonol may act as an anti-aging molecule have not been determined. MATERIALS/METHODS: In this study, we evaluated the ability of oligonol to modulate sirtuin (SIRT) expression in human lung epithelial (A549) cells. Oligonol was added to A549 cells and reactive oxygen species production, mitochondrial superoxide formation, and p21 protein levels were measured. Signaling pathways activated upon oligonol treatment were also determined by western blotting. Furthermore, the anti-aging effect of oligonol was evaluated ex vivo in mouse splenocytes and in vivo in Caenorhabditis elegans. RESULTS: Oligonol specifically induced the expression of SIRT1, whose activity is linked to gene expression, metabolic control, and healthy aging. In response to influenza virus infection of A549 cells, oligonol treatment significantly up-regulated SIRT1 expression and down-regulated viral hemagglutinin expression. Oligonol treatment also resulted in the activation of autophagy pathways and the phosphorylation of AMP-activated protein kinase (AMPK). Furthermore, oligonol-treated spleen lymphocytes from old mice showed increased cell proliferation, and mRNA levels of SIRT1 in the lungs of old mice were significantly lower than those in the lungs of young mice. Additionally, in vivo lethality assay revealed that oligonol extended the lifespan of C. elegans infected with lethal Vibrio cholerae. CONCLUSIONS: These data demonstrated that oligonol may act as an anti-aging molecule by modulating SIRT1/autophagy/AMPK pathways.

The Experimental Study on Anti-thrombotic and Anti-inflammatory Effect of NeungaSoJeokTang(NSJT) (능아소적탕(稜莪消積湯)의 항혈전(抗血栓) 및 항염작용(抗炎作用)에 대한 실험적(實驗的) 연구(硏究))

  • Je, Jong-Min;Yoo, Dong-Youl
    • The Journal of Korean Obstetrics and Gynecology
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    • v.20 no.3
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    • pp.45-64
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    • 2007
  • Purpose: This study was performed to evaluate anti-thrombotic and anti-inflammatory effects of NeungaSoJeokTang water extract (NSJT). Methods: In the study of anti-inflammatory effects, NSJT was investigated using cultured cells and murine models. As for the parameters of inflammation, levels of several inflammatory cytokines and chemical mediators which are known to be related to inflammation were determined in mouse lung fibroblast cells(mLFC) and RAW 264.7 cells. Results: Prior to the experiment, we evaluated sGOT, sGPT, BUN and creatine after the treatment. As a result, NSJT was innoxious on liver and kidney. In experiment of anti-thrombotic effect, NSJT inhibited the platelet aggregation induced by ADP and epinephrine, and inhibited pulmonary embolism induced by collagen and epinephrine. NSJT did not affect significantly the blood flow rate both in vitro and in vivo. NSJT increased platelet number and fibrinogen amount, and NSJT shortened PT and APTT in thrombus model induced by dextran. In experiment of anti-inflammatory effect, NSJT inhibited $IL-1{\beta}$, IL-6, $TNF-{\alpha}$, COX-2 and NOS-II mRNA expression in a concentration-dependent manner in RAW 264.7 cell line, and inhibited significantly NO production at 50, 100 ${\mu}g/ml$, and also inhibited ROS production in a concentration-dependent manner. NSJT inhibited $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production significantly in serum of acute inflammation-induced Balb/c mice, and decreased $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production in spleen tissue, but increased $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production in liver tissue. NSJT increased survival rate at the 3th day in ICR mice with lethal endotoxemia induced by LPS. Conclusion: These results suggest that NSJT can be used for treating diverse female diseases caused by thrombosis and inflammation such as pelvic pain, pelvic inflammatory disease as well as vulvar pain due to vulvitis, vulvar vestibulitis and so on.

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The Experimental Study on Anti-inflammatory Effect of Cheongyeoljohyeoltangkamibang(CYJHT) (청열조혈탕가미방(淸熱調血湯加味方)의 항염작용(抗炎作用)에 대한 실험적(實驗的) 연구(硏究))

  • Lee, Jung-Hwa;Yoo, Dong-Youl
    • The Journal of Korean Obstetrics and Gynecology
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    • v.21 no.4
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    • pp.49-68
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    • 2008
  • Purpose: This study was performed to evaluate anti-inflammatory effects of Cheongyeoljohyeoltangkamibang water extract (CYJHT). Methods: In the study of anti-inflammatory effects. CYJHT was investigated using cultured cells and murine models. As for the parameters of inflammation. levels of several inflammatory cytokines and chemical mediators which are known to be related to inflammation were determined in mouse lung fibroblast cells(mLFCs). RAW 264.7 cells and acute inflammation-induced mice. Results: 1. CYJHT showed a safety in cytotoxicity and toxicity of liver. 2. CYJHT effected scavenging activity on 2.2-diphenyl-1-picrylhydrazyl(DPPH) free radical, superoxide dismutase(SOD) and superoxide anion radical(SAR). 3. CYJHT in RAW 264.7 cell decreased IL-l$\beta$ mRNA expression at 100, 50 ${\mu}g$/ml and also decreased TNF-$\alpha$ mRNA expression at 100 ${\mu}g/ml$ and decreased COX-2. NOS-II mRNA expression and decreased IL-6 mRNA expression in a concentration-dependent manner. 4. CYJHT in RAW 264.7 cell decreased IL-l$\beta$ significantly at 100, 50 ${\mu}g$/ml and decreased IL-6. TNF-$\alpha$ significantly at 100 ${\mu}g$/ml. 5. CYJHT inhibited IL-l1$\beta$, IL-6 and TNF-$\alpha$ production significantly in serum of acute inflammation-induced mice. 6. CYJHT decreased IL-1$\beta$, IL-6 and TNF-$\alpha$ mRNA production significantly in spleen tissue. and also decreased IL-l$\beta$. TNF-$\alpha$ mRNA production significantly in liver tissue of acute inflammation-induced mice. Conclusion: These results suggest that CYJHT can be useful in treating diverse female diseases caused by inflammation such as menstrual pain. menstrual disorder. leukorrhea. pelvic inflammatory disease and so on.

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