• 한국어병학회지
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• 제18권3호
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• pp.215-225
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• 2005

본 연구는 강독성 균주인 E. tarda PoKF-000623가 생산하는 세포외생성물 (ECPs)을 넙치에 투여되었을 때 나타나는 생리학적 및 면역학적 영향을 조사하고자 하였다. E. tarda PoKF-000623 균주가 생성하는 ECPs의 넙치 (평균체중, 5.6g)에 대한 96hr-$LD_{50}$ 은 약 0.714${\mu}g$ g TEX>$fish^{-1}$ 이었으며, ECPs의 주사에 의한 폐사는 고농도 (40${\mu}g$ TEX>$fish^{-1}$) 뿐만 아니라 저농도 (4${\mu}g$ TEX>$fish^{-1}$)에서도 지속적으로 발생하였다. 평균 체중 59.1 g 크기의 넙치에 각각 0, 4 and 40${\mu}g$ ECPs TEX>$fish^{-1}$ 의 농도로 근육 주사한 후, 혈청 중 glucose 농도와 total protein 농도 및 신장 식세포의 활성을 조사하였다. 그 결과 고농도의 ECPs 주사 시험구의 넙치에서 혈중 glucose 농도와 total protein 농도가 대조구에 비하여 유의적으로 높게 나타났다. 그러나 세포성 면역 기구인 신장 식세포의 CL 반응과 세균 살해능은 대조구에 비하여 유의적으로 저하되었다. 따라서 넙치에 고농도의 E. tarda ECPs를 투여하면 생체 지표의 일부에 영향을 미치는 것으로 확인되었고 면역 활성, 특히 신장 식세포 활성의 억제가 edwardsielosis의 발병에 영향을 미치는 것으로 사료된다.

• 한국어병학회지
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• 제15권2호
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• pp.83-92
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• 2002

EST analysis was performed to identify stress-responsive and immune-related genes from mud loach (Misgurnus mizolepis), cDNA libraries were constructed with liver, intestine and kidney tissues and randomly chosen clones (216 for liver, 198 for intestine and 224 for kidney) were subjected to automated sequence analysis. Of 638 clones sequenced in totlal, approximalely 25% of ESTs was novel sequences (no match to GenBank) or sequences with high homology to hypothrtical/unknown genes. Several potential stress-responsive biomarker and/or immure-related genes were identified in all the tissues examined. It included lectin, MHC class I/II proteins, proteinase inhibitors, superoxide dismulase, catalase, glutathionc-S. transferase, heat-shock protein, warm temperature acclimation protein, complements, methylrransferasc, zinc finger proteins, macrophage maturation associated protein, and others. This information will offer new possibilities as fundamental baseline data for the molecular genetics and breeding of this species with an emphasis on the development of stress. (and disease)-resistsnt fish.

• Nuclear Medicine and Molecular Imaging
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• 제43권2호
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• pp.150-153
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• 2009

Xanthogranulomatous pyelonephritis is an uncommon chronic renal infection, which is usually found on middle-aged women and is rare in infant. Sometimes it forms focal mass like lesion of kidney with pathologically characteristic lipid-laden macrophage. A 1-month female infant was admitted for fever and moaning sound. On work-up of urinary tract infection, abdomen ultrasonography and computed tomography revealed a large mass on the upper portion of right kidney and PET/CT showed homogeneously increased $^{18}F$-FDG uptake. The radical nephrectomy of right kidney was performed and histology revealed a focal xanthogranulomatous pyelonephritis. To our knowledge, this is the first report presenting the finding of $^{18}F$-FDG PET/CT in the childhood xanthogranulomatous pyelonephritis.

• 한국식품영양학회지
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• 제32권2호
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• pp.106-113
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• 2019

The objective of this study was to evaluate the effect of fermented Kalopanax pictus (KP-F) on macrophage activation and its effect as a competitive inhibitor of LPS and inhibitory effect on endotoxemia. The results showed that KP-F could activate macrophage in a dose-dependent manner, and KP-F was confirmed to act as a ligand for TLR4. Also, it was found that KP-F did not exhibit the same biotoxicity as LPS in intraperitoneal injection, and that it could suppress the neutrophil migration induced by LPS administration. In normal mice, the body weight, tissue weight, and amount of nitrite and pro-inflammatory cytokines in serum showed no significant changes with KP-F diet for 2 weeks, confirming that administration of KP-F in normal mice did not lead to over activation of immune response and biotoxicity. In the mouse model of endotoxemia induced by LPS and D-galactosamine(D-GalN) in sub-lethal dose, the diet of KP-F effectively inhibited the amount of nitrite and cytokines in the blood, and thus was found to be able to relieve the hepatic and kidney injury. In addition, in the endotoxemia mouse model induced by LPS and D-GalN of lethal dose, the survival rate was increased by KP-F diet in a dose-dependent manner.

• Genomics & Informatics
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• 제21권2호
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• pp.22.1-22.15
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• 2023

Kidney renal clear cell carcinoma (KIRC) is one of the most aggressive cancer type of the urinary system. Metastatic KIRC patients have poor prognosis and limited therapeutic options. Ankyrin 3 (ANK3) is a scaffold protein that plays important roles in maintaining physiological function of the kidney and its alteration is implicated in many cancers. In this study, we investigated differential expression of ANK3 in KIRC using GEPIA2, UALCAN, and HPA databases. Survival analysis was performed by GEPIA2, Kaplan-Meier plotter, and OS-kirc databases. Genetic alterations of ANK3 in KIRC were assessed using cBioPortal database. Interaction network and functional enrichment analyses of ANK3-correlated genes in KIRC were performed using GeneMANIA and Shiny GO, respectively. Finally, the TIMER2.0 database was used to assess correlation between ANK3 expression and immune infiltration in KIRC. We found that ANK3 expression was significantly decreased in KIRC compared to normal tissues. The KIRC patients with low ANK3 expression had poorer survival outcomes than those with high ANK3 expression. ANK3 mutations were found in 2.4% of KIRC patients and were frequently co-mutated with several genes with a prognostic significance. ANK3-correlated genes were significantly enriched in various biological processes, mainly involved in peroxisome proliferator-activated receptor (PPAR) signaling pathway, in which positive correlations of ANK3 with PPARA and PPARG expressions were confirmed. Expression of ANK3 in KIRC was significantly correlated with infiltration level of B cell, CD8+ T cell, macrophage, and neutrophil. These findings suggested that ANK3 could serve as a prognostic biomarker and promising therapeutic target for KIRC.

• Tuberculosis and Respiratory Diseases
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• 제45권4호
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• pp.835-845
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• 1998

연구배경: 유리규산(silica)이 폐장내로 흡입되면 폐장내 염증세포의 축적이 발생하고 폐실질과 간질에 섬유화가 발생한다. Silica가 폐장내로 흡입되면 대삭세포에 탐식되어 염증매개물을 분비한다. 대식세포에서 염증반응에 중요하게 관여히는 cytokines은 IL-1$\beta$, IL-6, TNF-$\alpha$ 등이 있으며 후기 섬유화에 관계하는 TGF-$\beta$ 등이 분비되어 폐섬유화의 진행과 유지에 중요한 역할을 한다. 그러나 silica에 의한 폐섬유화 과정에서 각 cytokine의 역할과 분비부위 시간에 따른 변화에 대해서는 아직 확실히 규명된 바 없다. 방 법: silica 투여시 폐섬유화증이 잘 유발되어지는 C57BL/6J(ref) mouse의 폐장내로 silica를 투여 후 1 일, 2 일, 7 일, 2 주, 4주, 8주, 12주째마다 폐장을 적출하여 시간에 따른 폐조직의 변화와 면역화학조직염색법을 이용하여 IL-1$\beta$, IL-6, TNF-$\alpha$, TGF-$\beta$ 단백 발현의 변화와 분비부위를 관찰하였다. 결 과: Silica군에서는 2주부터 육안적 소견의 변화가 관찰되었으며 8주째 변화가 가장 심하였고 초기에 염증세포의 침윤이 기관지와 세기관지 주위로 시작되어 8 주째는 기관지 주위의 심한 염증세포 침윤과 섬유화 결절에 의해서 기관지가 완전히 폐쇄되는 소견을 보였다. IL-6 의 발현은 혈관에서는 변화없이 지속적으로 발현되었고 시간 경과에 따라 기도상피세포와 혈판내피세포에서 IL-6 발현이 관찰되어 IL-6의 형성은 혈관에서 기도내로 이동하는 염증세포에 의해 과형성됨을 알 수 있었다. IL-1는 정상군의 혈관내피세포에서 1도 정도의 경한 발현이 있은 후 큰 변화없이 12주까지 지속적으로 발현되었다. TNF-$\alpha$는 기도상피세포에서 발현이 점차 증가하였고 2주째 기관지 주위에 염증세포의 침윤이 심해지면서 형성된 결절에서 강한 발현이 나타난 후 8주까지 지속되었다. TGF-$\beta$는 기관지 주위에서 초기에 발현을 관찰할 수 없었으나 염증 세포의 침윤이 심해지는 2 주째부터 강한 발현이 나타난 후 12주까지 지속적으로 높은 발현을 나타내었다. 결 론: Silica를 폐장내 투여시 IL-1$\beta$, IL-6, TNF-$\alpha$가 조기에 분비되어 모두 폐섬유화의 염증반응에 관여하고 TGF-$\beta$는 후기의 폐섬유화에 유지에 관여할 것으로 추정되며 silica에 의한 폐섬유화의 조절방법으로는 TNF-$\alpha$의 형성조절이 좋은 방법이 될 수 있을 것으로 사료된다.

• 한국어병학회지
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• 제8권2호
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• pp.135-148
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• 1995

경골어류의 질병진행과정에 따른 임파조혈조직내 대식세포의 분포변화 특성을 밝히고자 Edwardsiella tarda균과 그 분비독소인 Extracellula products(ECP)를 각각 진골어류의 일종인 틸라피아에 복강 주사한 후, 임상증상을 발현하지 않은 개체에 대하여 비장 및 두신의 병리조직학적 변화를 경시적으로 조사하였다. E. tarda 생균을 주사 1주일후, 비장에서는 주로 유초동맥을 중심으로, 두신에서는 조혈 조직전반에 걸쳐 대식세포 집단이 출현하였다. 또한 이 집단들은 시간이 경과함에 따라 MMC와 유사한 밀집구조를 이루었고, 1주째에는 이들 응집체가 더욱 치밀해지면서 주위의 실질은 어느 정도 회복경향을 보였다. 대식세포 집단은 2주째가 되면서 대부분 사라졌고, 거의 정상적 조직배열상을 보였다. ECP주사에 의한 비장과 두신의 경시적 조직학적 변화는 생균주사의 경우와 매우 유사하였으나 생균주사의 경우에 비해 대식세포의 응집이 더욱 빠르게 일어났을 뿐 아니라, 주사 후 1시간째의 비장 및 두신조직에서도 유초동맥의 증식비후(비장) 또는 대식세포 집단의 출현(두신)이 인정되었다. 따라서 E. tarda 생균 또는 그 ECP를 틸라피아에 주사했을 경우, 임파조혈조직내의 이와 같은 대식세포 행동특성은 에드워드증(Edwardsiellosis) 또는 기타 감염증의 조기진단을 위한 중요한 병리조직학적 정보로 활용될 수 있을 것으로 사료되었다.

• 대한수의학회지
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• 제43권2호
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• pp.171-180
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• 2003

Certain hexavalent chromium compounds when administered via inhalation have the potential to induce lung injury in human and experimental animals. In present study, the inhalation effect of hexavalent chromium on morphological change and weight change of rat organ were investigated. Rats were exposed to hexavalent chromium ($Na_2CrO_4{\cdot}4H_2O$) at concentration of $0.36mg/m^3$ (group 1), $1.8mg/m^3$ (group 2), ascorbic acid and $1.8mg/m^3$ (group 3) and filtered air (group 0, control group) for I week, 2 weeks and 3 weeks. The weight of lung and kidney in group 2 and group 3 significantly higher than in control group at same exposure period. The epithilial cells of bronchiole in group 1, 2, 3 were more flatten than group 0. In the lung, the number of macrophage was significantly increased and morphologically changed macrophages were observed in group 1, 2, 3. The morphological change of the lung did not significant between group 2 and group 3, however, in group 1 was milder than in group 2 and group 3. The severity of morphological change were depend on exposure period in the lung. The morphological changes by hexavalent chromium of the liver and kidney were also observed These results suggest that inhalation of hexavalent chromium effects on not only respiratory organ, but also the liver and the kidney via blood stream.

• 대한한방내과학회지
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• 제29권4호
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• pp.1100-1114
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• 2008

The aim of the study was to investigate recovery effects of Rehmannia, which has been used clinically for chronic renal failure therapy. Mice had 5/6 nephrectomy to induce chronic renal failure. The results were as follows: 1. The protein amount in urine per 24hrs of the Rehmannia-treated group was significantly reduced compared to the control. 2. The albumin amount in the blood of the Rehmannia-treated group significantly increased compared to the control. The creatinine. total-cholesterol, LDL-cholesterol and triglyceride levels in serum of the Rehmannia-treated group as compared to the control were significantly inhibited. 3. The structural change in kidney of the Rehrnannia-treated group was significantly inhibited compared to the control. 4. The factor (macrophage/monocyte antigen (ED-1), type IV collagen and angiotensin II type 1 ($AT_1$) receptor) of the Rehmanala-treated group was significantly inhibited compared to the control, which induced the structural change in kidneys. The above results suggest that Rehmannia partially improved kidney function.

• 대한수의학회지
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• 제37권4호
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• pp.817-823
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• 1997

Suckling piglets and weaned pigs showed anorexia, dehydration, severe abdominal breathing, emaciation and paresis from Oct. 1993. to Nov. 1993. Five 2-week-old piglets were submitted for diagnosis in Kangwon National University. At necropsy, the pin-point well demarcated yellowish white foci were scattered on the surface of the lung, heart, liver, spleen and kidney. Histologically, multifocal areas of necrosis with mononuclear cells infiltration were found in the lung, heart, liver, lymph node, spleen, kidney and small intestine. These lesions tended to be associated with blood vessels. Variable round to ovoid tachyzoites were located at the periphery of the lesions. The organisms were demonstrated as Toxoplasma gondii by immunohistochemical staining method. Ultrastructurally, this parasite was surrounded with parasitophorous vacuole in alveolar macrophage. The parasite was crescent-shaped and $6{\sim}8{\times}1{\sim}2{\mu}m$ in size. It was enclosed by an thick outer membrane and an underlying thin inner membrane. Several club-shaped paired organelles and conoids lay in the cytoplasm at the anterior. Numerous round body and one to several mitochondria were presented in the cytoplasm. Based on the gross findings, histopathology, immunohistochemical and electron microscopic findings, this case was diagnosed as toxoplasmosis in piglets.