• Title/Summary/Keyword: mouse B cell

Search Result 851, Processing Time 0.026 seconds

Sequence Characterization, Expression Profile, Chromosomal Localization and Polymorphism of the Porcine SMPX Gene

  • Guan, H.P.;Fan, B.;Li, K.;Zhu, M.J.;Yerle, M.;Liu, Bang
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제19권7호
    • /
    • pp.931-937
    • /
    • 2006
  • The full-length cDNA of the porcine SMPX gene was obtained by the rapid amplification of cDNA ends (RACE). The nucleotide sequences and the predicted protein sequences share high sequence identity with both human and mouse. The promoter of SMPX was sequenced and then analyzed to find the promoter binding sites. The reverse transcriptase-polymerase chain reaction (RT-PCR) revealed that SMPX has a high level of expression in heart and skeletal muscle, a very low expression in lung and spleen and no expression in liver, kidney, fat and brain. Moreover, SMPX has a differential expression level in skeletal muscle, the expression in 65-day embryos being higher than other stages. The porcine SMPX was mapped to SSCXp24 by using a somatic cell hybrid panel (SCHP) and was found closely linked to SW1903 using the radiation hybrid panel IMpRH. An A/G single nucleotide polymorphism (PCR-RFLP) in the 3'-untranslated region (3'-UTR) was detected in eight breeds. The analysis of allele frequency distribution showed that introduced pig breeds (Duroc and Large White) have a higher frequency of allele A while in the Chinese indigenous pig breeds (Qingping pig, Lantang pig, YushanBlack pig, Large Black-White pig, Small Meishan) have a higher frequencies of allele G. The association analysis using an experimental population (188 pigs), which included two cross-bred groups and three pure-blood groups, suggested that the SNP genotype was associated with intramuscular fat content.

Alloferon Alleviates Dextran Sulfate Sodium-induced Colitis

  • Kim, Hyemin;Im, Jong Pil;Kim, Joo Sung;Kang, Jae Seung;Lee, Wang Jae
    • IMMUNE NETWORK
    • /
    • 제15권3호
    • /
    • pp.135-141
    • /
    • 2015
  • Dysfunction of gut immune regulation is involved in mucosal damage in inflammatory bowel disease (IBD). However, there is still no efficacious immune-regulator for the treatment of IBD. Alloferon is a novel immune-modulatory peptide that was originally isolated from infected insects. It shows anti-inflammatory effects by the regulation of cytokine production by immune cells and their activities. Therefore, we investigated the effect of alloferon in a mouse model of colitis using dextran sulfate sodium (DSS). Colitis was induced by administration of DSS in drinking water for 7 consecutive days. It was confirmed by the presence of weight loss, diarrhea, hematochezia, and colon contraction. Alloferon was injected 4 days after DSS administration. We found that alloferon improved the pathogenesis of IBD based on the reduced disease activity index (DAI) and colon contraction. Edema, epithelial erosion, and immune cell infiltration were found in mice administered DSS, but the phenomena were reduced following alloferon treatment. The plasma level of IL-6, a classical pro-inflammatory cytokine in colitis, was also decreased by alloferon. Moreover, alloferon inhibited the TNF-${\alpha}$-induced degradation and phosphorylation of $I{\kappa}B$ in Colo205 colon cancer cells. Taken together, these results show that alloferon has anti-inflammatory effects and attenuates DSS-induced colitis.

원형질체 융합 및 핵전이에 의한 새로운 담자균류의 개발에 관한 연구(II) - 융합균사체의 항암성분이 생쥐의 면역세포에 미치는 영향 - (Studies on Development of New Basidiomycetes by Protoplast Fusion and Nuclear Transfer II - The Effects of the Components of the Protoplast Fusants on Mouse Immune Cells -)

  • 문철;김채균;윤종명;심미자;김하원;최응칠;김병각
    • 생약학회지
    • /
    • 제27권3호
    • /
    • pp.231-237
    • /
    • 1996
  • The antitumor components of the protoplast fusants of Lentinula edodes and Ganoderma lucidum were examined for immunological activity to elucidate the mechanism of their antitumor activity. They did not show any direct cytotoxicity against tumor cells. But being examined for immunopotentiation activity, they increased the number of colonies in the bone marrow stem cells to 3.0 times. They also increased the activities of the acid phosphatase in activated macrophages to 2.1 times and the secretion of nitric oxide in RAW 264.7 to 2.2 times, respectively. They activated the components of the alternative complement pathway. In humoral immunity. they increased the activities of the alkaline phosphatase in differentiated B cells to 1.6 times and the number of plaque forming cells to 1.8 times, respectively. In cellular immunity, they restored the depressed response of delayed type hypersensitivity in tumor bearing mice to normal level.

  • PDF

녹용(鹿茸), 홍화자(紅花子) 단일 및 혼합 물 추출물( 抽出物)의 파골세포(破骨細胞) 분화(分化) 억제(抑制)와 골흡수(骨吸收) 억제(抑制) 효과(效果) (Inhibitory Effects of Water Extract of Cervi parvum cornu, Carthami tinctorii fructus and Their Combination on Osteoclast Differentiation and Bone Resorption)

  • 안지영;김주호;기지예;곽한복;오재민;김윤경
    • 대한한의학방제학회지
    • /
    • 제18권2호
    • /
    • pp.167-182
    • /
    • 2010
  • Cervi parvum cornu (Deer Antler) and Carthami tinctorii fructus (Also known as Carthami seed) are widely used for treating osteoporosis and rheumatoid arthritis. In this study, We found out that the water extract of Cervi parvum cornu(WECPC), Carthami tinctorii fructus(WECTF) and their combination have effects of suppressing the RANKL-induced osteoclast differentiation. We assayed mRNA expression levels of NFATc1, c-Fos, TRAP and GAPDHS from bone marrow macrophages(BMMs) by means of RT-PCR. Similarly, the protein expression levels of NFATc1, c-Fos, MAPKs and $\beta$-actin in cell lysates were analyzed by means of Western blotting. then we determined the anti-osteoporotic effects of WECPC, WECTF and their combination using Lipopolysaccharide (LPS)-induced bone-loss mouse. WECPC, WECTF and their combination showed remarkable inhibition on RANKL-treated osteoclast differentiation without cytotoxicity. WECPC suppressed degradation of I-${\kappa}B$. WECPC, WECTF and their combination down-regulated the induction of c-Fos and NFATc1 by RANKL. Lastly, in vivo data showed that WECPC, WECTF and their combination rescued the bone erosion by LPS treatment. Thus, these results demonstrate that WECPC, WECTF and their combination can be efficacious remedies for bone-loss diseases such as osteoporosis and rheumatoid arthritis.

강활추출물이 OVA-induced Asthma Mouse Model의 면역조절에 미치는 영향 (The Experimental study on the Immuno-regultory effect of Notopterygii Rhizoma Extract on OVA-induced asthma in mice)

  • 유지현;배진현;도은수;장준복;성낙술;길기정
    • 대한본초학회지
    • /
    • 제26권4호
    • /
    • pp.83-88
    • /
    • 2011
  • Objectives : The aim of this study was to investigate the asthma-suppressive and immuno-regulatory effect of Notopterygii Rhizoma(NR) extract on OVA(ovalbumin)-induced asthma in mice. Methods : C57BL/6 mice out of all the experimental groups, except the Normal group and the NRI group, were sensitized and challenged with OVA. C57BL/6 mice were exposed to OVA three times a week for 12 weeks and analyzed by flow cytometer, ELISA, H&E stain. Results : The concentrations of IL-4, IL-5, IL-13, IgE in serum of the OVA-NRII group decreased significantly compared with those of the OVA-Control group. The number of $Gr-1^+/CD11b^+$, $CCR3^+$, $CD3^+/CD19^+$, $CD3e^+/CD69^+$cells in the OVA-NRI group decreased significantly compared with those of the OVA-Control group. The collagen accumulation in the lung sections of the OVA-NRII group decredased signi- ficantly compared with that of the OVA-Control group. Conclusions : These results suggest that Notopterygii Rhizoma(NR) would be a effective candidate for herbal-originated anti-asthmatic drug. However, this drug should be further studied for characterization of the accurate action and underlying mechanism using variant disease model in the future.

고삼(苦蔘)이 알러지성 염증 반응에 미치는 영향 (Effects of Sophorae Radix (SFR) on Allergic Inflammation related Atopy Dermatitis)

  • 우무륜;구영선;김동희
    • 혜화의학회지
    • /
    • 제15권2호
    • /
    • pp.135-148
    • /
    • 2006
  • Sophorae Radix (SFR) is known as a therapeutic drug that has been used in Oriental traditional medicine for the treatment of skin and mucosal ulcers, gastrointestinal hemorrhage, diarrhea, inflammation and arrhythmia. In the present study, we examined the effects of the aqueous extract of SFR on anti-inflammation, anti-allergic and anti-oxidant effect in various cell lines; they include mouse lung fibroblast cells (hFCs), human mast cells (HMC-1), human monocytic cells (THP-1), and RAW 264.7 cells. Treatment with SFR extract at a concentration of 250 ${\mu}g$/ml for 24h showed no significant decrease in the survival rate of the hFCs. SFR decreased the mRNA expression of IL-8, TNF-$\alpha$, and IL-6 in HMC-1 cells. SFR extract treatment significantly inhi-bited the protein expression of IL-6 and, IL-8 induced by mite in THP-1 cells and it also did MCP-1 expression. We examined the alternation of histamine release in HMC-1 cells for investigating anti-allergic effect of SFR. Histamine secretion decreased after the treatment with SFR. In addition, SFR extract treatment at a concentration of 10 ${\mu}g$/ml, 100 ${\mu}g$ /ml, and 200 ${\mu}g$/ml lowered the $\beta$-hexosaminidase to 10.3%, 21.7%, and 50.8%, respectively. IC50 of SFR extract in RBL-2H3 cells was 196.85 ${\mu}g$/ml. Both activity of NF-$\kappa$B promoter in RBL-2H3 cells significantly diminished after the dose-dependent treatment of SFR. Therefore, our results indicate that SFR has anti-inflammatory and it may be useful for treating allergic diseases such as atopic dermatitis.

  • PDF

Transduced Tat-CIAPIN1 reduces the inflammatory response on LPS- and TPA-induced damages

  • Yeo, Hyeon Ji;Shin, Min Jea;You, Ji Ho;Kim, Jeong Su;Kim, Min Young;Kim, Dae Won;Kim, Duk-Soo;Eum, Won Sik;Choi, Soo Young
    • BMB Reports
    • /
    • 제52권12호
    • /
    • pp.695-699
    • /
    • 2019
  • Cytokine-induced apoptosis inhibitor 1 (CIAPIN1), known as an anti-apoptotic and signal-transduction protein, plays a pivotal role in a variety of biological processes. However, the role of CIAPIN1 in inflammation is unclear. We investigated the protective effects of CIAPIN1 in lipopolysaccharide (LPS)-exposed Raw 264.7 cells and against inflammatory damage induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) in a mouse model using cell-permeable Tat-CIAPIN1. Transduced Tat-CIAPIN1 significantly reduced ROS production and DNA fragmentation in LPS-exposed Raw 264.7 cells. Also, Tat-CIAPIN1 inhibited MAPKs and NF-κB activation, reduced the expression of Bax, and cleaved caspase-3, COX-2, iNOS, IL-6, and TNF-α in LPS-exposed cells. In a TPA-induced animal model, transduced Tat-CIAPIN1 drastically decreased inflammation damage and inhibited COX-2, iNOS, IL-6, and TNF-α expression. Therefore, these findings suggest that Tat-CIAPIN1 might lead to a new strategy for the treatment of inflammatory skin disorders.

Percutaneous Absorption and Model Membrane Variations of Melatonin in Aqueous-based Propylene Glycol and 2-Hydroxypropyl-$\beta$-cyclodextrin Vehicles

  • Lee, Beom-Jin;Cui, Jing-Hao;Keith A. Parrott;James W.Ayres;Robert L.Sack
    • Archives of Pharmacal Research
    • /
    • 제21권5호
    • /
    • pp.503-507
    • /
    • 1998
  • Percutaneous absorption and model membrane variations of melationin (MT) in aqueous-based propylene glycol and $2-hydroxypropyl-{\beta}-cyclodextrin $vehicles were investigatted. the excised hairless mouse skin (HMS) and two synthetic ethylene vinyl acetate (EVA) and microporous polyethylene (MPE) were selected as a model membrane. the solubility of MT was determined by phase equilibrium study. the vertical $Franz{\circledR}$ type cell was used for diffusion study. The concentration of MT was determined using reverse phse HPLC system. The MT solubility was the highest in a mixture of PG and $2-HP{\beta}CD$. The percutaneous absorption of MT through excised HMS increased as the solubility increased. However, the permeability coefficient decreased and then slightly increased in mixture of PG and $2-HP{\beta}CD$. On the other hand, both flux and permeability coefficient through EVA membrane decreased as the solubility increased. No MT was detected over 12 h after starting diffusion through MPE membrane. The flux of MT was dependent on the type of membrane selected. Flux of MT was greatest in excised HMS followed by EBA and MPE membrane. Flux of MT through EVA membrane was 5-20 times lower when compared to excised HMS. Interestingly, volumes of donor phase when MPE membrane was used, significantly increased during the study period. the HMS might be applicable to expect plasma concentration of MT in human subjects based on flux and pharmacokinetic parameters as studied previously. the current studies may be applied to deliver MT transdermally using aqueous-based vehicles and to fabricate MT dosage forms.

  • PDF

Treponema lecithinolyticum lipopolysaccharide에 의한 matrix metalloproteinase-9의 발현 (Effect of Treponema lecithinolyticum lipopolysaccharide on matrix metalloproteinase-9 expression)

  • 남정아;문선영;이진욱;차정헌;최봉규;유윤정
    • Journal of Periodontal and Implant Science
    • /
    • 제35권3호
    • /
    • pp.675-685
    • /
    • 2005
  • Bone resorption involves sequential stages of osteoclast precursor migration and differentiation of osteoclast precursors into multinucleated osteoclasts. Stromal cell derived factor (SDF)-1 is a chemotactic factor for osteoclast precursor migration. Matrix metalloproteinase (MMP)-9 is involved in migration of osteoclast precursors and activation of $interleukin(IL)-1{\beta}$. Alveolar bone destruction is a characteristic feature of periodontal disease. Treponema lecithinolyticum is a oral spirochete isolated from the periodontal lesions. The effect of lipopolysaccharide(LPS) from T. lecithinolyticum on expression of SDF-1 and MMP-9 was examined in cocultures of bone marrow cells and osteblasts derived from mouse calvariae. T. lecithinolyticum LPS increased expression of MMP-9 in the coculture. Polymyxin B, an inhibitor of LPS, abolished the increase of MMP-9 mRNA expression by LPS. LPS did not increase the expression of SDF-1, $IL-1{\beta}$ and tumor necrosis $factor(TNF)-{\alpha}$ mRNA in cocultures. Prostaglandin $E_2(PGE_2)$ up-regulated the expression of MMP-9 and NS398, an inhibitor of $PGE_2$ synthesis, down-regulated the induction of MMP-9 expression by T. lecitbinolyticm LPS. These results suggest that T. lecitbinolyticm LPS increases MMP-9 expression in bone cells via $PGE_2$ and that the induction of MMP-9 expression by T. lecitbinolyticm LPS is involved in alveolar bone destruction of periodontitis patients by the increase of osteoclast precursor migration and the activation of bone resorption-inducing cytokine.

Inhibitory Effect of a Phosphatidyl Ethanolamine Derivative on LPS-Induced Sepsis

  • Lee, Chunghyun;An, Hyun-Jung;Kim, Jung-In;Lee, Hayyoung;Paik, Sang-Gi
    • Molecules and Cells
    • /
    • 제27권2호
    • /
    • pp.251-255
    • /
    • 2009
  • Sepsis is the leading cause of death in critically ill patients. Today, around 60% of all cases of sepsis are caused by Gram-negative bacteria. The cell wall component lipopolysaccharide (LPS) is the main initiator of the cascade of cellular reactions in Gram-negative infections. The core receptors for LPS are toll-like receptor 4 (TLR4), MD-2 and CD14. Attempts have been made to antagonize the toxic effect of endotoxin using monoclonal antibodies against CD14 and synthetic lipopolysaccharides but there is as yet no effective treatment for septic syndrome. Here, we describe an inhibitory effect of a phosphatidylethanolamine derivative, PE-DTPA (phosphatidylethanolamine diethylenetriaminepentaacetate) on LPS recognition. PE-DTPA bound strongly to CD14 ($K_d$, $9.52{\times}10^{-8}M$). It dose dependently inhibited LPS-mediated activation of human myeloid cells, mouse macrophage cells and human whole blood as measured by the production of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and nitric oxide, whereas other phospho-lipids including phosphatidylserine and phosphatidylethanolamine had little effect. PE-DTPA also inhibited transcription dependent on $NF-{\kappa}B$ activation when it was added together with LPS, and it rescued LPS-primed mice from septic death. These results suggest that PE-DTPA is a potent antagonist of LPS, and that it acts by competing for binding to CD14.