• 대한수의학회지
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• 제42권3호
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• pp.351-362
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• 2002

Newcastle disease (ND) is a highly contagious infection of poultry, Two pathology-based techniques, in situ RT-PCR and in situ hybridization (ISH) were applied to formalin-fixed, paraffin-embedded tissues from chickens naturally infected with velogenic ND virus (VNDV). Two pairs of primers and a probe for ISH and in situ RT-PCR, respectively, were selected from highly conserved region of matrix gene of NDV. The ISH experiment was carried out using MicroProbe$^{TM}$ capillary action system within 2 hours. In situ RT-PCR was performed using MicroProbe$^{TM}$ capillary action system and GeneAmp In Situ PCR system. With ISH and in situ RT-PCR, viral nucleic acid was detected in the central nervous system of chickens from infected with neurotropic velogenic Newcastle disease virus (NVNDV), whereas viral nucleic acid was detected in various organs or tissues of chickens from infected with viscerotropic velogenic Newcastle disease virus (VVNDV). In the NVND group, positive signals were characteristically defined in the cytoplasm of neuron, vascular endothelial cells, and perivascular mononuclear macrophages in the central nervous system. One of NVND group, chicken from one farm exhibited positive signals in the bronchial epithelium. The VVND group chickens showed positive reaction in the macrophages, vascular endothelium, and bronchiolar epithelium. Markedly, viral nucleic acid was detected in the macrophages of morphologically normal tissues which were peripheral or located in distant areas from lesions. The central nervous system of chickens infected with VVND virus had positive signals in the vascular endothelial cell, perivascular mononuclear macrophages and some neuron. The number and intensity of the positive cells by in situ RT-PCR were more and stronger, respectively, in comparison with those by ISH. Particularly, positive reaction was detected in macrophages infiltrating in cardiac muscle by in situ RT-PCR, but not obtained by ISH. Therefore, these results demonstrated that ISH is a rapid diagnostic method for detection of NDV and in situ RT-PCR can be used as an efficient method for detection of low viral load infection or subclinical viral infection of NDV.

• 대한한방내과학회지
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• 제25권1호
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• pp.16-27
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• 2004

목적 : 골쇄보(骨碎補) (Drynariae Rhizoma)는 한의학에서 골격계 질환의 치유력을 강화시키는 것으로 알려져 있는데, 항 virus, 항 박테리아, 항 염증 작용이 있는 것으로 보고되고 있다. 질병을 치료하기 위하여 면역 반응을 조절하는 기전에 관하여 오랫 동안 많은 관심을 기울여왔는데, 식물에서 추출한 약재들이 면역기능을 조절할 수 있는 가능성에 대하여 광범위하게 연구되었다. 이에 저자는 골쇄보(骨碎補)의 ethanol 추출물을 가지고 항 세포성과 변역 조절 기능에 대하여 연구하였다. 방법 : 사람의 혈액단핵구 (PBMC)의 배양은 thymidine 법으로 검정하고 nitric oxide (NO) 생성은 mouse macrophage RAW 264.7 세포주를 이용하였으며 IL-2, IFN 와 TNF-a 생성은 ELISA 기술로 검정하였다. 세포 증식은 FACScan으로 측정하고 세포 표면항원 CD16, CD25 및 HLA-DR 은 FITC/PE 항체로 측정하였다. 결과 : 골쇄보(骨碎補)는 mitogen (phytohaemagglutinin; PHA) 과 antigen (purified protein derivative; PPD) 에 의해 자극받은 human peripheral blood mononuclear cells (PBMCs) 의 증식을 억제하였다. 더욱이, 골쇄보(骨碎補)는 mouse 와 인간에 기원한 여러 세포들의 성장을 억제하였다. 또한, nitric oxide (NO), interleukin-2 (IL-2)와 tumor necrosis $factor-{\alpha}\;(TNF-{\alpha})$ 의 생성을 억제하였다. 한편, human PBMCs 에서 intracytoplasmic $interferon-{\gamma}\;(IFN-{\gamma})$와 cell surface markers 인 CD16, HLA-DR 의 expression은 골쇄보(骨碎補)에 의하여 영향을 받지 않았으나, CD25 expression 은 현저히 통제되었다. 결론 : 골쇄보(骨碎補) ethanol 추출물이 in vitro 에서 항 증식성과 변역 억제작용을 가지고 있다는 가능성을 의미하는 것으로 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• 제25권7호
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• pp.1021-1028
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• 2012

Peripheral blood mononuclear cells (PBMCs) discriminate microbial pathogens and induce T-cell responses of appropriate effector phenotype accordingly. Toll-like receptors (TLRs), in part, mediate this microbial recognition and differentiation while the development of T-cell effector functions critically depends on the release of Th1- or Th2- type cytokines. In the present study, buffalo PBMCs were stimulated under in vitro culture conditions by Bacillus subtilis cell wall petidoglycan, a TLR2 ligand, in a dose- and time- dependent manner. The expression of TLR2 as well as the subsequent differential induction of the Th1 and Th2 type cytokines was measured. Stimulation was analyzed across five doses of peptidoglycan ($10{\mu}g/ml$, $20{\mu}g/ml$, $30{\mu}g/ml$, $40{\mu}g/ml$ and $50{\mu}g/ml$) for 3 h, 12 h, 24 h and 36 h incubation periods. We observed the induction of TLR2 expression in a dose- and time-dependent manner and the peptidoglycan induced tolerance beyond $30{\mu}g/ml$ dose at all incubation periods. The correlation between peptidoglycan stimulation and TLR2 induction was found positive at all doses and for all incubation periods. Increased production of all the cytokines was observed at low doses for 3 h incubation, but the expression of IL-4 was relatively higher than IL-12 at the higher antigen doses, indicating tailoring towards Th2 response. At 12 h incubation, there was a pronounced decrease in IL-4 and IL-10 expression relative to IL-12 in a dose- dependent manner, indicating skewing to Th1 polarization. The expression of IL-12 was highest for all doses across all the incubation intervals at 24 h incubation, indicating Th1 polarization. The relative expression of TNF-${\alpha}$ and IFN-${\gamma}$ was also higher while that of IL-4 and IL-10 showed a decrease. For 36 h incubation, at low doses, relative increase in the expression of IL-4 and IL-10 was observed which decreased at higher doses, as did the expression of all other cytokines. The exhaustion of cytokine production at 36 h indicated that PBMCs became refractory to further stimulation. It can be concluded from this study that the cytokine response to sPGN initially was of Th2 type which skews, more pronouncedly, to Th1 type with time till the cells become refractory to further stimulation.

• 사상체질의학회지
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• 제12권1호
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• pp.201-215
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• 2000

1. 연구배경 및 목적 사상의학(四象醫學)에서 열다한소탕(熱多寒少湯)은 태음인(太陰人)의 뇌경색증 급성기에 매우 빈번하게 사용되는 처방 중 하나이다. 그래서 저자는 열다한소탕(熱多寒少湯) 투여에 따른 뇌경색증 환자의 면역계 특히 세포활성문질만계의 변화에 대해 연구하기로 하였다. 2. 방법 원광대학교 광주한방병원 사상의학과에 입원한 뇌경색증 한자 8인(남자 3명, 여자 5명)을 대상으로 하여, 내원 당시와 2-4주간의 열다한소탕 투여 후의 세포활설물질망계의 변화를 추적하였다. 또한 정상태음인의 말초혈액단핵구를 채취하여 리포다당체 처리시의 변화를 열다한소탕(熱多寒少湯) 전처리 유무에 따라 비교 분석하였다. 3. 결과 IL-2 혈장 농도는 정상 대조군보다 환자군에서 더 낮았다. $IFN-{\gamma}$의 경우 역시 정상 대조군보다 약간 낮았으나 통계학적 유의성은 없었다. IL-4, IL-6, IgE의 혈장중 수준은 정상 대조군에 비해 환자군에서 현저히 상승되어 있었다. 그러나, 2-4주간의 열다한소탕(熱多寒少湯) 투여후 $IFN-{\gamma}$, IL-2의 혈장 중 수준은 현저히 상승되었고, IL-4, IL-6, Ig E 수준은 현저히 억제되었다. 한편 정상 태음인의 말초혈액단핵구에 리포다당체 처리를 한 후 $IFN-{\gamma}$, IL-2, IL-6가 상승되었으나, 열다한소탕(熱多寒少湯) 전처리를 한 경우에서는 이들 물질의 생성이 유의하게 억제되었다.

• 한국임상수의학회지
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• 제23권4권
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• pp.393-399
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• 2006

전신마취제인 케타민은 흥분성 아미노산의 활성을 방해하는 N-methyl-D-aspartate (NMDA) 수용체의 비경쟁적인 길항제이다. 본 연구는 개 말초혈액 백혈구의 순간산소과소비현상(Oxidative burst activity; OBA)에 있어서 케타민의 효과를 검토하였다. 탐식세포의 OBA는 유세포 분석기로 분석하였다. 케타민을 말초혈액 다형핵백혈구(peripheral blood polymorphonuclear cells; PMN)와 monocyte-rich cells에 직접처리 하였을 때는 OBA가 감소하였으며, 또한 케타민을 처리한 말초혈액 단핵구세포(peripheral blood mononuclear cells; PBMC) 배양상층액에 의해서도 PMN과 monocyte-rich cells의 OBA가 감소하였다. 그러나 케타민을 처리한 PMN 배양상층액에 의해서는 탐식세포의 OBA에 있어서 아무런 변화가 없었다. 하지만 이러한 OBA의 감소는 latex beads를 넣어 탐식반응이 일어날 때만 측정되었다. 이상의 결과로부터 탐식반응이 일어나는 동안 케타민은 호중구와 단핵구와 같은 개 말초혈액 탐식구의 OBA에 있어 억제효과를 나타내었다.

• 한국임상수의학회지
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• 제33권4호
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• pp.194-199
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• 2016

The objective of this study was to examine the effect of trans-10, cis-12 conjugated linoleic acid (t10c12-CLA) on the expression of cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX) pathway in lipopolysaccharide (LPS)-stimulated porcine peripheral blood mononuclear cells (PBMCs). t10c12-CLA was treated with different concentrations in culture medium of LPS$na{\ddot{i}}ve$ and LPS-stimulated PBMCs. The mRNA expressions of prostaglandin $E_2$ ($PGE_2$)-synthase, COX-2 and 5-LOX were measured using quantitative real-time PCR. In addition, the production levels of $PGE_2$ and 5-LOX in culture supernatant from PBMCs with or without LPS were assessed by ELISA. In LPS$na{\ddot{i}}ve$ PBMCs, treatment of t10c12-CLA significantly (p < 0.05) increased the mRNA expressions of PGE2 synthase and 5-LOX compared to vehicle control. Expression of COX-2 mRNA did not show significant difference compared to vehicle control by t10c12-CLA treatment in LPS$na{\ddot{i}}ve$ PBMCs. However, the addition of LPS in PBMCs markedly (p < 0.05) increased the mRNA expression of COX-2, $PGE_2$ synthase and 5-LOX, and also significantly (p < 0.05) enhanced the production of $PGE_2$ and 5-LOX relative to LPS$na{\ddot{i}}ve$ PBMCs, respectively. However, the addition of t10c12-CLA significantly (p < 0.01) suppressed the LPS-induced excessive expression of COX-2, $PGE_2$ synthase, and 5-LOX compared to those of PBMCs treated with LPS alone. The production levels of $PGE_2$ and 5-LOX in culture supernatant from LPS-stimulated PBMCs were also significantly (p < 0.05) inhibited by the treatment of t10c12-CLA compared to LPS alone. These results suggested that t10c12-CLA has an anti-inflammatory effect via dual inhibition of COX-2 and 5-LOX with gene expression and production level in LPS-stimulated porcine PBMCs. Therefore, it was thought that t10c12-CLA can attenuate the inflammatory response by down-regulation of eicosanoids production.

• IMMUNE NETWORK
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• 제5권4호
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• pp.205-214
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• 2005

Background: We examined global gene expression profiles of peripheral blood mononuclear cells (PBMCs) in patients with ulcerative colitis (DC), and tested whether the identified genes with the altered expression might be associated with susceptibility to UC. Methods: PBMCs from 8 UC and 8 normal healthy (NH) volunteers were collected, and total RNAs were subjected to the human 8.0K cDNA chip for the micro array analysis. Real time-PCR (RT-PCR) was performed to verify the results of micro array. One hundred forty UC patients and 300 NH controls were recruited for single nucleotide polymorphism (SNP) analysis. Results: Twenty-five immune function-related genes with over 2-fold expression were identified. Of these genes, two chemokines, namely, CXCL1 and CCL20, were selected because of their potential importance in the evocation of host innate and adaptive immunity. Four SNPs were identified in the promoter and coding regions of CXCL1, while there was no significant difference between all patients with UC and controls in their polymorphisms, except minor association at g.57A>G (rs2071425, p=0.02). On the other hand, among three novel and one known SNPs identified in the promoter region of CCL20, g. -1,706 G>A (p=0.000000055), g. -1,458 G>A (p=0.0048), and g. -962C>A (p=0.0006) were found to be significantly associated with the susceptibility of Uc. Conclusion: Altered gene expression in mononuclear cells may contribute to IBD pathogenesis. Although the findings need to be confirmed in other populations with larger numbers of patients, the current results demonstrated that polymorphisms in the promoter region of CCL20 are positively associated with the development of Uc.

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.1519-1529
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• 2016

Background: Matrix metalloproteinase -2 (gelatinase-A, Mr 72,000 type IV collagenase, MMP-2) and -9 (gelatinase-B, Mr 92,000 type IV collagenase, MMP-9) are key molecules that play roles in tumor growth, invasion, tissue remodeling, metastasis and stem-cell regulation by digesting extracellular matrix barriers. MMP-2 and -9 are well known to impact on solid cancer susceptibility, whereas, in hematological malignancies, a paucity of data is available to resolve the function of these regulatory molecules in bone marrow mononuclear cells (BM-MNCs) and stromal cells of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). Objectives: The present study aimed to investigate mRNA expression and gelatinase A and B secretion from BM-MNCs in vitro and genotypic associations of MMP-2 (-1306 C/T; rs243865), MMP-9 (-1562 C/T; rs3918242), tissue inhibitor of metalloproteinase -1 (TIMP-1) (372T/C; rs4898, Exon 5) and TIMP-2 (-418G/C; rs8179090) in MDS and AML. Results: The study covered cases of confirmed MDS (n=50), AML (n=32) and healthy controls (n=110). MMP-9 mRNA expression revealed 2 fold increased expression in MDS-RAEB II and 2.5 fold in AML M-4 (60-70% blasts). Secretion of gelatinase-B also revealed the MMP-9 mRNA expression and ELISA data also supported these data. We noted that those patients having more blast crises presented with more secretion of MMP-9 and its mRNA expression. In contrast MMP-9 (-1562 C/T) showed significant polymorphic associations in MDS (p<0.02) and AML (p<0.02). MMP-9 mRNA expression of C/T and T/T genotypes were 1.5 and 2.5 fold increased in MDS and AML respectively. In AML, MMP-2 C/T and T/T genotypes showed 2.0 fold mRNA expression. Only MMP-9 (-1306 C/T) showed significant 4 fold (p<0.001) increased risk with chemical and x-ray exposed MDS, while tobacco and cigarette smokers have 3 fold (p<0.04) risk in AML. Conclusions: In view of our results, MMP-9 revealed synergistic secretion and expression in blast crises of MDS and AML with 'gene' polymorphic effects and is significantly associated with increased risk with tobacco, cigarette and environmental exposure. Release and secretion of these enzymes may influence hematopoietic cell behavior and may be important in the clinical point of view. It may offer valuable tools for diagnosis and prognosis, as well as possible targets for the treatments.

• 한국임상수의학회지
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• 제29권3호
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• pp.207-212
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• 2012

개 말초혈액 다형핵백혈구(PMNs)의 유주활성에 대한 fucoidan의 면역증효과를 검토하였다. Fucoidan 그 자체는 PMNs에 대해 직접적인 유주활성 효과를 보이지 않았다. 그러나 recombinant IL-8에 대한 PMNs의 유주활성과 유사하게 fucoidan으로 배양한 말초혈액 단핵구세포(PBMCs)의 배양상층액은 PMNs에 대해 유주활성을 증가시켰다. 또한, fucoidan으로 배양한 PBMCs의 배양상층액에 대한 PMNs의 유주활성 증가효과는 anti-IL-8 pAb를 처리했을 때 억제되었다. PBMCs 배양 상층액 속의 IL-8의 양을 정량한 결과 fucoidan무처치 대조군에 비해 증가하였다. 이상의 결과로부터, fucoidan은 개 PMNs의 유주능에 대하여 면역증가 작용을 가지고 있으며, 이것은 fucoidan의 자극에 의해 PBMCs에서 생산되어 분비되는 IL-8에 의해 나타나는 것으로 사료되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8947-8950
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• 2014

Immunological functions of heat shock proteins (HSPs) have long been recognized. In this study we aimed to efficiently purify HSP70 from renal cell carcinoma and test it as a tumor antigen for pulsing dendritic cells in vitro. HSP70 was purified from renal cell carcinoma specimens by serial column chromatography on Con A-sepharose, PD-10, ADP-agarose and DEAE-cellulose, and finally subjected to fast protein liquid chromatography (FPLC). Dendritic cells derived from the adherent fraction of peripheral blood mononuclear cells were cultured in the presence of IL-4 and GM-CSF and exposed to tumor HSP70. After 24 hours, dendritic cells were phenotypically characterized by flow cytometry. T cells obtained from the non-adherent fraction of peripheral blood mononuclear cells were then co-cultured with HSP70-pulsed dendritic cells and after 3 days T cell cytotoxicity towards primary cultured renal cell carcinoma cells was examined by Cell Counting Kit-8 assay. Dendritic cells pulsed in vitro with tumor-derived HSP70 expressed higher levels of CD83, CD80, CD86 and HLA-DR maturation markers than those pulsed with tumor cell lysate and comparable to that of dendritic cells pulsed with tumor cell lysate plus TNF-${\alpha}$. Concomitantly, cytotoxic T-lymphocytes induced by HSP70-pulsed dendritic cells presented the highest cytotoxic activity. There were no significant differences when using homologous or autologous HSP70 as the tumor antigen. HSP70 can be efficiently purified by chromatography and induces in vitro dendritic cell maturation in the absence of TNF-${\alpha}$. Conspecific HSP70 may effectively be used as a tumor antigen to pulse dendritic cells in vitro.