• 한국임상수의학회지
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• 제14권2호
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• pp.230-234
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• 1997

In vitro effect of cortisol on the proliferation of canine peripheral blood mononuclear cells (MNC) was examined. The MNC was isolated from peripheral blood by a gradient centrifugation with Picoll-Hypaque. The cell proliferation assayed using a noneradioactive 5-Bromo-2'-deoxy-uridine (BrdU) kit. The MNC proliferated well in response to either phrtobeRagg$]$utinin-p (PHA-P) or culture supernatant from MNC stimulated with PHA-p. However, these proliferative responses of MNC were not affected by addition of coitisol of 1 to 1,OOfl ng/ml. The addition of cortisol in MNC culture with either PHA-P or corture supernatBnt from MNC stimulated with PHA-P far 4 days wag not also influenced on the viabilities of cultured MNC. In conclusions it was able to assay the cell proliferation with BrdU instead of radioactive isotope e.g. tritiated thymidine (3H-TdR). These results suggested that cortisol does not at least influence on MNC proliferation in vitro.

• 한국임상수의학회지
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• 제15권1호
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• pp.8-13
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• 1998

Change of IgG production of feline mononuclear cell(MNC) was evalual vitro. MNC was treated with lipopolysaccharide(LPS) before cortisol administration. tisol induced change of B cell subpopulation with surface IgG and reduced IgG prods against virus. However, before treatment o$\ulcorner$ MNC with LPS induced increasement of subpopulation with surface IgG and IgG production against virus. These results impel: diminution of IgG production by cortisol is well again by LPS treatment.

• 한국임상수의학회지
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• 제20권1호
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• pp.1-6
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• 2003

돼지 말초혈액 다형핵 백혈구(polymorphonuclear cell; PMN)의 유주성에 있어서 conjugated linoleic acid(CLA) 이성체(CLA mixture, 10t-12c CLA, 9c-11t CLA, 9c-11c CLA 및 9t-11t CLA)의 면역증강 효과를 검토하였다. PMN에 대한 유주성은 Boyden chamber 변법으로 측정하였다. CLA 이성체들을 고농도(50∼200μM)로 사용하였을 경우 말초혈액 단핵구 세포(mononuclear cell; MNC) 및 PMN의 cell viability가 감소되거나 세포가 사멸하였다. 따라서 cell viability가 높고 세포독성을 나타내지 않는 20μM 농도로 유주활성 실험을 하였다. CLA 이성체들은 돼지 말초혈액 PMN의 유주활성에 직접적인 효과는 없었다. CLA 이성체로 배양한 MNC의 배양상층액 중 CLA mixture, 10t-12c CLA 및 9c-11t CLA 처리군에서는 PMN의 유주활성이 현저하게 증강되었으나 9c-11c CLA 및 9t-11t CLA로 배양한 MNC 배양상층액에서는 PMN의 유주활성이 나타나지 않았다. 이러한 유주성 증강효과는 checkerboard assay를 실시한 결과 진성의 유주활성이었다. 유주성 인자인 porcine recombinant (pr) interleukin(IL)-8을 이용하여 돼지 PMN에 대한 유주성을 검토한 결과, pr IL-8에 의한 PMN의 유주활성은 CLA로 배양한 MNC 배양상층액에 의한 것과 동등한 활성을 보였다. 또한 CLA로 배양한 MNC 배양상층액의 PMN에 대한 유주성을 anti-pr IL-8pAb를 사용하여 중화반응을 실시한 결과, CLA mixture로 배양한 MNC 배양상층액에 의해 증가된 PMN의 유주활성은 anti-pr IL-8 pAb 첨가에 의해 억제되어, 본 유주활성은 MNC에서 분비되는 IL-8으로 인한 것임을 강하게 시사하였다. 이상의 결과로부터 CLA 중 CLA mixture, 10t-12c CLA 및 9c-11t CLA 이성체가 돼지 말초혈액 다형핵 백혈구의 유주활성에 증강효과를 가지고 있으며, 이러한 증강효과는 CLA로 자극된 MNC에 의해 생성되는 IL-8 인자에 의한 것임을 알 수 있었다.

• 대한임상검사과학회지
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• 제38권1호
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• pp.9-15
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• 2006

Peripheral bood stem cell collection (PBSCC), including peripheral blood stem cell transplantation (PBSCT), has been utilized worldwide as a very beneficial treatment method instead of allogenic Bone Marrow Transplantation (BMT) because it has many advantages such as rapid bone marrow engraftment and hematopoietic recovery, easy and safe accessibility and lower risk of rejection compared with allogenic BMT. In order to identify most the observable parameter in PBSCC, we analyzed various hematological parameters before and after PBSCC, and evaluated the correlation between the time of bone marrow engraftment and the number of CD34+ cells. Thirteen patients, who underwent 54 PBSCCs from January, 2003 to August, 2004 at Chungnam National University Hospital due to various systemic neoplasms, were analyzed in aspects of various hematological parameters including CD34+ cells using by Flow Cytometry (FCM). PBSCC harvests are described below: Mononuclear cells (MNC) $2.3{\pm}1.4{\times}10^8/kg$ and CD34+ cells $0.63{\pm}0.35{\times}10^6/kg$ on average, respectively. There was a statistical significance in Hb and Hct before and after PBSCC, but not in WBC and platelet counts. The period to reach the hematological bone marrow engraftment was 13.4(10~21) days and 19.5(11~38) days according to the criteria of absolute neutrophile counts (ANC) ${\geq}500/uL$ and platelet counts ${\geq}50,000/{\mu}L$ in peripheral blood, respectively. There was a significant correlation between the numbers of CD34+ cell and ANC (p<0.05), and a borderline significance between MNC and ANC (p=0.051). We found that a group of patients, who were infused with CD34+ cells more than $3.5{\times}10^6/kg$, reached more rapidly the period of bone marrow engraftment in platelet counts (p=0.040). This present study suggested that Hb and Hct were the most useful parameters and should be closely monitored before and after PBSCC, that a PBSCT with the dosage of more than $3.5{\times}10^6/kg$ of CD34+ cells was needed to perform successful bone marrow engraftment, and additionally that platelet counts could be more useful in indicating bone marrow engraftment than ANC.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2003년도 생물공학의 동향(XII)
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• pp.95-97
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• 2003

본 연구에서는 손상된 심근의 재생을 위하여 골수단핵세포를 SD 래트에 이식하였고 5주 후에 심근의 재생, 신생혈관의 형성과 더불어 심장의 기능이 향상되었음을 확인할 수 있었다. 골수단핵세포를 손상된 심근경색 부위에 넣어주는 것은 추가 보완 실험을 통하여 심근경색의 치료법으로서 이용될 수 있을 것이다.

• 한국임상수의학회지
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• 제20권4호
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• pp.437-442
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• 2003

CLA를 급여시킨 돼지에 있어 말초 혈액 세포의 변화와 탐식세포의 탐식반응을 조사하였다. 100일령, 평균체 중 80kg인 거세 수퇘지에게 10t-l2c CLA와 CLA mixture를 각각 사료 중에 5% 첨가하여 총 4주간에 걸쳐 자유급여 시켰다. 급여 전 (0주), 급여 2주후, 4주후 그리고 급여 중지 후인 5주차에 각각 혈액세포 수치(PCV 백혈구수 및 백혈구 감별계산치)의 변화와 탐식세포의 탐식활성을 측정하였다. CLA의 급여 따른 PCV의 수치에 있어서는 아무런 변화가 없었다. 그러나 10t-l2c CLA 또는 CLA mixture가 함유된 사료를 급여한 돼지에 있어서 CLA를 급여하지 않은 돼지에 비해 백혈구수 특히 호중구 수가 현저히 증가하였다. 말초혈액 단핵구세포(mononuclear cells; MNC)와 다형핵백혈구(polymorphonuclear cells; PMN)의 탐식능를 유세포분석기로 분석한 결과, 10t-l2c CLA 또는 CLA mixture 급여와 상관없이 MNC와 단구세포들(monocyte-rich cells)의 탐식능에는 변화가 없었다. 그러나 PMN의 탐식 활성은 CLA 무급여 대조돼지들에 비해 CLA 급여군은 2주에서 5주차에 걸쳐 증가된 탐식능를 나타내었다. 이상의 결과로부터 돼지에 CLA 급여는 호중구수 증가와 호중구 탐식능 증가를 유도할 수 있음을 제시하였으며 향후 생체방어 증강을 위해 CLA를 임상적으로 투여할 수 있을 것으로 보인다.

• Preventive Nutrition and Food Science
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• 제9권3호
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• pp.276-282
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• 2004

Marginal Zn deficiency is prevalent through the world and yet human zinc status has not been properly assessed due to the lack of a reliable diagnostic indicator. One potential possibility for zinc status assessment using Zn-binding protein, metallothionein (MT)-mRNA, has been proposed. The purpose of the present study was aimed to show whether measurement of mononuclear cell (MNC) MT mRNA, using a competitive-reverse transcriptase-polymerase chain reaction (competitive-RT-PCR) assay, could indicate zinc status in human subjects. In this study, MNC MT-mRNA expression was measured using a competitive-RT-PCR to compare before and after 14 days of zinc supplementation (50 mg Zn/das zinc gluconate). RT-PCR oligonucleotide primers which were designed to amplify both a 278 bp segment of the human MT-2A cDNA and a 198 bp mutant competitor cDNA template from MNCs, were prepared. MT-2A mRNA was normalized by reference to the housekeeping gene, $\beta$-actin, mRNA for which was also measured by competitive-RT-PCR. There was considerable inter-individual variation in MT-mRNA concentration and yet, the mean MT-2A mRNA level increased 4.7-fold after Zn supplementation, as compared to before Zn supplementation. This MT-2A mRNA level was shown as the same pattern and, even more sensitive assay, compared to the conventional plasma and red blood cells (RBCs) Zn assessment in which plasma and RBCs zinc levels increased 2.3- and 1.2-fold, respectively (p<0.05). We suggest that MT competitive-RT-PCR can be a useful assessment tool for evaluating human zinc status.

• 대한수의학회지
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• 제35권4호
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• pp.769-776
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• 1995

This study was undertaken to develop the monoclonal antibody(MAb) for lymphocytes of Korean native cattle by the cell hybridization of myeloma P3/NS-1/ 1-Ag-4-1 and spleen cells from BALB/c mice hyperimmunized with nylon wool column eluted peripheral T lymphocytes of Korean native cattle. The isotype of MAb KCT-14 against T lymphocyte was mouse $IgG_1$. KCT-14 positivity of mononuclear cells(MNC) from peripheral blood lymphocytes, nylon wool nonadherent and adherent-lymphocytes was 41.7%, 58.4% and 22.6%, respectively. And that of mesenteric lymph node-, spleen and thymus-MNC was 43.3%, 40.2% and 33.6%, respectively. Immunoperoxidase staining of frozen tissue sections showed that the MAb positive cells were located in the medulla of the thymus and in the paracortical area and the mantle zone of the germinal center in the lymph nodes. These results indicated that KCT-14 was one of the MAb for investigate of T lymphocyte subpopulations in the Korean native cattle.

• Asian Pacific Journal of Cancer Prevention
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• 제15권15호
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• pp.6127-6130
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• 2014

Objective: Explore the feasibility of allo-hemopietic stem cell transplants in treating patients with B cell acute lymphocytic leukemia. Methods: Between september 2006 and February 2011, fifteen patients with B cell acute lymphocytic leukemia (ALL) were treated by allo-hemopietic stem cell transplants (HSCT). Stem cell sources were peripheral blood. Six patients were conditioned by busulfan (BU) and cyclophosphamide (CY) and nine patients were conditioned with TBI and cyclophosphamide (CY). Graft versus host disease (GVHD) prophylaxis regimen consisted of cyclosporine A (CSA), methotrex ate (MTX) and mycophenolatemofetil (MMF). Results: Patients received a median of $7.98{\times}10^8{\cdot}kg^{-1}$ ($5.36-12.30{\times}10^8{\cdot}kg^{-1}$) mononuclear cells (MNC). The median time of ANC> $0.5{\times}10^9/L$ was day 12 (10-15), and PLT> $20.0{\times}10^9/L$ was day 13 (11-16). Extensive acute GVHD occurred in 6 (40.0%) patients, and extensive chronic GVHD was recorded in 6 (40.0%) patients. Nine patients were alive after 2.5-65 months follow-up. Conclusion: Allogeneic stem cell transplant could be effective in treating patients with B cell acute lymphocytic leukemia.