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최용숙 ( Choi Young-Suk ) - 가톨릭대학교 성모병원 성분헌혈실
김광성 ( Kim Kwang-Sung ) - 가톨릭대학교 성모병원
김연순 ( Kim Youn-Soon ) - 가톨릭대학교 성모병원 성분헌혈실
황미정 ( Hwang Mee-Jung ) - 가톨릭대학교 성모병원 성분헌혈실
조형숙 ( Cho Hyung-Suk ) - 가톨릭대학교 성모병원 성분헌혈실
김수미 ( Kim Su-Mi ) - 가톨릭대학교 성모병원 성분헌혈실
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Abstract
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Purpose: Peripheral blood stem cell transplantation (PBSCT) has been widely used. The optimal time for collection is a critical factor to obtain proper counts of CD34 cell by peripheral blood stem cell collection (PBSC). The purpose of this study was to identify the factors influencing peripheral blood stem cell collection in order to figure out the more effective timing for PBSC.
Method: The subjects of this study were 189 patients undergoing 3 leukapheresis from January 28, 2005 to December 31, 2006. Group’s characteristics, checkup opinion of pre-peripheral blood on the day of harvest & outcome of PBSC were analyzed and evaluated using SAS statistics program after grouping patients as below; group 1-CD34 cell counts ＜2 ×10?/㎏ (n=97); group 2-2×10?/㎏ ≤CD34 cell counts ＜4×10?/㎏ (n=26); group 3-CD34 cell counts ≥4×10?/㎏ (n=63).
Results: Based on outcome of peripheral blood stem cell according to diagnosis, acute myelocytic leukemia (AML) was 65.5% at Group 1, Lymphoma was 21.7% at Group 2 and multiple myeloma (MM) was 70.8% at Group 3. There were significant differences in CD34 cell counts according to diagnosis (p=0.00004). Type of cytokine mobilization according to diagnosis, Lenograsim was using 62.5% of MM & 38.2% of AML and filgrastim is using 22.0% of AML only. Circular peripheral blood CD34 cell counts prior to harvest was 258.1/μL at Group 3 which was much higher comparing to Group 1 (10.5/ L) and Group 2 (39.9/μL) (p＜0.001). TNC counts of collected peripheral blood stem cell was 15.36×10?/㎏ at Group 3 and it’s much higher than Group 2 (13.16×10?/㎏) and Group 1 (12.36×10?/㎏) (p=0.083). There was no significant difference in MNC counts inbetween 3 groups.
Conclusions: Circular peripheral blood CD34+ cell counts prior to harvest was much higher at Group 3 than Group 1 and Group 2. Therefore, the number of CD34+ cells on the day of harvest can be used as an accurate predictor for peripheral blood stem cell.
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KeyWords
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PBSC, CD34+cell
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원문 및 링크아웃 정보
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등재저널 정보
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