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재래산양 적혈구를 이용한 한우 순환 혈액내 rosette 형성 세포 정량
정기수,김년수,김동훈,강명대,송희종,Cheong, Ki-soo,Kim, Neun-su,Kim, Dong-hoon,Kang, Myoung-dai,Song, Hee-jong 대한수의학회 1989 大韓獸醫學會誌 Vol.29 No.4
In order to enumerate the T-lymphocytes in bovine peripheral blood lymphocytes (PBL) by E rosette assay, KGRBC were treated with various concentrations of 2-aminoethylisothiouronium bromide(AET) and dextran(Dex), singly or in combination. To further standardize the assay, optimum concentration of AET- and/or Dex-treatment and incubation time for rosette forming cell(RFC) counts were determined. The levels of B-lymphocytes in the PBL were evaluated by erythzocyte-antibody($EA_{Fc}$)- and erythrocyte-antibody-complement (EAC)-rosetting techniques. The results obtained were as follows; The PBL from 20 clinically normal Korean cattle were formed as low percentage of spontaneous E-rosette ($6.7{\pm}2.4%$) in control group, whereas in KGRBC treated with 0.1M AET for 20 minutes and 8% Dex were formed as $37.3{\pm}2.7%$ and $45.1{\pm}2.1%$, respectively. And the synergistic effects were noted no less than $66.5{\pm}5.6%$ when the KGRBC treated with 0.1M AET and 8% Dex subsequently and rate of RFR did not change significantly between 3~24 hours incubation time at $4^{\circ}C$, EA-and EAC-RFR were $23.3{\pm}9.1%$ and $23.1{\pm}7.9%$, respectively. These results suggest that the KGRBC would be a useful agent for the enumeration of T-lymphocytes by E rosette assay and B-lymphocytes by EA- or EAC-rosette assay in cattle-PBL.