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논문명/저자명
삼산화 비소에 의한 ATRA 저항성 K562 백혈병 세포주의 분화 및 아포토시스에 관한 연구 / 유용규
발행사항
아산 : 순천향대학교 대학원, 2004.8
청구기호
TM 616.99419 ㅇ428ㅅ
형태사항
iii, 31 p. ; 26 cm
자료실
전자자료
제어번호
KDMT1200503092
주기사항
학위논문(석사) -- 순천향대학교 대학원, 의학, 2004.8
원문
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영문요약 9

I. 서론 11

II. 연구방법 13

Cell Culture 13

Reagents 13

Flow Cytometric Analysis 14

Western Blot Analysis 14

Statistical Analysis 15

III. 결과 16

Viability of K562 cells after treatment with As₂O₃or ATRA 16

Induction of apoptosis by As₂O₃ 16

Erythroid differentiation of K562 cells 17

Expressions of Bcl-2, Bcl-XL, and Bax 17

IV. 고찰 19

V. 결론 23

참고문헌 24

국문요약 36

Figure 1. Viability of K562 cells after treatment with As₂O₃ or ATRA The percentage of viable K562 cells after treatment with 1 μM of As₂O₃ began to decrease significantly 9 days after treatment. The viabilities of K562 cells were 97%, 91%, and 74.5% by day 12 of treatment with 0.1 μM, 0.5 μM, and 1 μM of As₂O₃, respectively (*, p [ 0.05 , **, p [ 0.05). The viability of cells was not changed by adding 1 μM and 10 μM of ATRA until day 12. 31

Figure 2. Caspase 3 activation in K562 cells after treatment with As₂O₃ or ATRA. Activation of cleaved caspase-3 (17kDa) was observed in K562 cells treated with 1 μM of As₂O₃. Caspase-3 was not activated in K562 cells treated with a low dose As₂O₃ (0.1 μM and 0.5 μM) or ATRA (1 μM and 10 μM) 32

Figure 3A. Expression of glycophorin A in K562 cells after treatment with As₂O₃ or ATRA by using the flow cytometry and western blot analysis. A, Flow cytometric analysis showed that glycophorin A expression was increased in a dose dependent fashion in K562 cells after 3 days incubation with As₂O₃ but was unchanged in K562 cells incubated with ATRA. 33

Figure 3B. Expression of Bcl-2, Bcl-XL, and Bax in K562 cells after treatment with As₂O₃ or ATRA. The expression of Bax was reduced in a dose dependent fashion in K562 cells treated with As₂O₃ or ATRA. Bcl-XL was increased in a dose dependent fashion in K 562 cells treated with As₂O₃ whereas Bcl-XL remained unaltered when treated with ATRA. 34

Figure 4. Expression of Bcl-2, Bcl-XL, and Bax in K562 cells after treatment with As₂O₃or ATRA. The expression of Bax was reduced in a dose dependent fashion in K562 cells treated with As2O3 or ATRA. Bcl-XL was increased in a dose dependent fashion in K562 cells treated with As₂O₃whereas Bcl-XL remained unaltered when treated with ATRA. The expression of Bcl-2 was increa 35

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