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정미현(Mee Hyun Jung),양성은(Sung-Eun Yang),진혜진(Hae Jin Jin),이만경(Man Kyoung Lee),송호선(Ho Sun Song),양정윤(Jung Yoon Yang),양윤선(Yoon Sun Yang),하철원(Chul-Won Ha) 대한정형외과학회 2004 대한정형외과학회지 Vol.39 No.6
목적: 인간 제대혈로부터 간엽성 섬유세포양 세포를 분리, 배양함으로써 제대혈 내의 순환성 간엽줄기세포의 존재여부를 확인하고, 이의 연골세포 분화능을 증명하고자 하였다. 대상 및 방법: 총 50 유니트의 제대혈로부터 분리된 유착성 세포군의 세포형태 및 면역표현형을 분석하였다. BMP-6을 첨가하였거나 또는 첨가하지 않은 연골분화배양액을 이용하여 펠렛 배양의 형태로 연골분화를 유도 배양하였다. 연골세포로의 분화를 관찰하기 위해 역전사 중합효소연쇄반응을 수행하였으며, Safranin-O 염색과 제2형 콜라겐에 관한 면역염색을 시행하였다. 결과: 제대혈 단핵세포로부터 균질성의 섬유세포양 형태의 유착성 세포군이 배양되었다. 이 세포군은 간엽줄기세포 관련 항원 양성, 조혈모세포항원 음성, 조직적합항원 음성, 내피세포 및 파골세포 관련 항원 음성이었다. 연골분화 펠렛 배양 시 BMP-6을 첨가한 군에서 펠렛의 크기 및 연골세포관련 인자의 발현이 증가하였고, Safranin-O 염색과 제2형 콜라겐의 면역염색도 강양성이었다. 결론: 제대혈 내에 순환성 비조혈성 연골형성 간엽줄기세포가 존재함을 확인하였고, 연골분화 배지에 BMP-6을 첨가함으로써 제대혈 유래 비조혈성 간엽줄기세포의 시험관 내 연골분화의 효율을 향상시킬 수 있었다. Purpose: The aim of this study was to demonstrate the existence of circulating mesenchymal stem cells (MSC) in the human umbilical cord blood (hUCB) and to evaluate the chondrogenic differentiation potential of hUCB-derived MSC in vitro. Materials and Methods: Fifty hUCB harvests were cultured in media supplemented with 10% fetal bovine serum. The adherent fibroblast-like cells were characterized by immunophenotyping and induced to differentiate into chondrocytes in the pellet culture with and without BMP-6. This study performed RTPCR of the chondrogenic markers, Safranin-O stain and type Ⅱ collagen immunohistochemical stain. Results: The mononuclear cells isolated from hUCB formed adherent colonies with an attached well-spread fibroblast-like morphology. The cells positively expressed the MSC-related antigens, but did not express the hematopoietic, HLA-DR, endothelial, or osteoclast antigens and could be induced to differentiate into chondrocytes under proper stimulation. BMP-6 increased the size of the pellet and the mRNA levels for aggrecan, type Ⅱ collagen and type Ⅸ collagen and enhanced the levels of proteoglycan synthesis during chondrogenic differentiation. Conclusion: The homogenous fibroblast-like cells developed in cultures from hUCB with chondrogenic differentiation potential were considered to be MSC. Furthermore, it was found that BMP-6 enhanced chondrogenic differentiation of the hUCB-derived MSC in the pellet culture.
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부적응 도식과 우울간의 관계에서 정서조절방략의 매개효과
정미현,김남재 덕성여자대학 학생생활지도연구소 2008 學生生活硏究 Vol.24 No.-
This research explored cognitive emotion condition tactic, behavioral emotion control tactic, and empirical emotion condition tactic, each media effect and causal effects in he relation of maladjustment diagram and depression and tactic more affecting depression. 388 women's university students were given to answer to the maladjustment diagram Questionnaire, Emotion Regulation Strategy Questionnaire(ERSQ) and Self-Rating Depression Scale(SDS). Depression were 48 scores over, selected from among the 388 students. To explore the relation of maladjustment diagram, each emotion condition tactic(cognitive, behavioral, empirical), a correlational analysis was conducted and a regression analysis was conducted. And based on that, a structural equation model was built and the adequacy was verified. The correlational analysis showed static correlation with depression in emotion deficiency, desertion/unrest, distrust/abuse, social isolation/alienation, deficiency/value, failure, risk/disease vulnerability, fusion/immaturity self-sacrifice, emotional depression, and the selection of negative thinking, inactive thinking, blaming others in cognitive emotion control tactics, and the selection of emotion acceptance in behavioral emotion control tactic, and the selection of indulgence and overeating in empirical emotion condition tactic. The regression analysis, showed the selection of emotion deficiency, distrust/abuse, social isolation/alienation, defect value, risk/disease vulnerability as maladjustment diagram variables affecting depression via cognitive emotion control tactics(negative thinking, inactive thinking, blaming others), and that of social isolation/alienation, failure, risk/disease vulnerability as maladjustment diagram variables affecting depression via. Thus structural equation model verification was conducted to confirm the causality affecting depression using these maladjustment diagram variables and each emotion control tactic. The analysis showed that maladjustment diagram affects depression via partial media of cognitive emotion control tactics(negative thinking, inactive thinking, blaming others), and significantly affects depression partial media of empirical emotion control tactics(indulgent activity and overeating) whose adequacy was supported. The causal effect indicated that the route of maladjustment diagram and depression via partial media of cognitive emotion control tactics rather than via empirical emotion control tactics had a higher effect. Regardless of correlation with depression in behavioral emotion condition tactic(emotion acceptance), it showed insignificant result of media effect between maladjustment diagram and behavioral tactic, which was discussed.
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