游離的LIFα胞內(nèi)功能片段對HL-60細(xì)胞的生長調(diào)節(jié)
[Abstract]:Leukemia inhibitory factor (LIF) is a multipotent cytokine, which acts on various cell tissues and plays different biological roles, and regulates cell growth, proliferation and differentiation widely. Such as inhibiting the differentiation of embryonic stem cells in vitro, stimulating platelet formation, hematopoietic cell proliferation, promoting osteoblast proliferation, promoting neurogen formation, proliferation of muscle satellite cells, and participating in neuromuscular repair. Participate in the acute stage of liver reaction, participate in the physiological and pathological process of inflammation, etc. These biological effects depend on its binding to the LIF receptor 偽 subunit (gp190) on the target cell membrane, forming heterodimer with another subunit (gp130) and activating the downstream signal transduction pathway. Gp190 (LIFR 偽 subunit) is a low affinity LIF specific receptor. It belongs to the hematopoietic receptor superfamily and lacks the activity of endogenous kinase. Soluble LIFR and transmembrane LIFR. exist in physiological state Soluble receptors, free from extracellular, transmembrane and intracellular regions, have antagonistic effects on the normal physiological effects of LIF. Transmembrane LIFR (gp190) contains three functional domains-BOX1,2,3.YXXQ sequence located at the distal end of the membrane (Y tyrosine, X arbitrary amino acid, Q glutamine), which binds specifically to the SH2 site of STAT3. Is there a intracellular free receptor in the cell? how does the intracellular receptor affect signal transduction and exert its biological effect? The effects of free peptides on cell proliferation and differentiation at the membrane receptor signal initiation site have been reported, suggesting that we, The single signal priming site of the single subunit can activate the corresponding signal transduction pathway in the cell under the condition of membrane separation. LIF signal transduction activates the JAK-STAT pathway and the RAS-MAPK pathway. We designed two kinds of small molecules, 190CT2 3 (including BOX2 3) and 190CT3 (including BOX3), according to the different functional domains of the intracellular region of gp190. We found that many functional domains of the intracellular region of gp190 become free peptides in the cell. It has different effects on cell differentiation and activates different signal molecules. In order to further verify the previous work and study the pathogenesis, two leukemia HL-60 cell lines, recombinant 190CT2 3 and 190CT3, were successfully obtained in this study, and the signal transduction pathway related to the YXXQ group site-directed mutation of 190CT3 was further studied. It was found that the proliferation of tumor cells expressing recombinant target genes (190CT2 3 and 190CT3) was inhibited, the cell maturation and differentiation were promoted, and the JAK/STAT3 pathway was activated. Through this study, we have determined the functional effect and phase of 190CT2 3190CT3 on the proliferation and differentiation of acute promyelocytic leukemia cell line HL-60 in the presence of different functional domains of gp190 in the presence of intracellular 190CT2 3190CT3.
【學(xué)位授予單位】:第二軍醫(yī)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2006
【分類號】:R341
【共引文獻(xiàn)】
相關(guān)期刊論文 前8條
1 劉厚奇,湯淑萍,劉善榮,胡世杰,傅繼梁;白血病抑制因子受體中g(shù)p130細(xì)胞內(nèi)區(qū)誘導(dǎo)白血病細(xì)胞Meg-01內(nèi)c-myc的表達(dá)[J];第二軍醫(yī)大學(xué)學(xué)報(bào);2000年06期
2 劉厚奇,單繼寬,湯淑萍,劉善榮;Fas調(diào)節(jié)白血病細(xì)胞HL-60內(nèi)Stat3的表達(dá)和磷酸化[J];第二軍醫(yī)大學(xué)學(xué)報(bào);2000年06期
3 趙吉清,董兆君,惲榴紅,阮金秀;梭曼中毒誘導(dǎo)PC_(12)細(xì)胞JAKs表達(dá)[J];第三軍醫(yī)大學(xué)學(xué)報(bào);2003年14期
4 單繼寬,劉厚奇,湯淑萍,劉善榮;白血病抑制因子受體不同亞基細(xì)胞內(nèi)區(qū)與HL-60細(xì)胞內(nèi)STAT3激活的關(guān)系[J];免疫學(xué)雜志;2001年03期
5 杜冰,朱道銀,唐恩潔;重組人白血病抑制因子體外誘導(dǎo)HL-60細(xì)胞凋亡與bc-l2及p53表達(dá)的關(guān)系[J];中國臨床藥理學(xué)與治療學(xué);2004年06期
6 劉厚奇!200433上海,單繼寬!200433上海,湯淑萍!200433上海,劉善榮!200433上海;Fas死亡結(jié)構(gòu)域調(diào)節(jié)白血病細(xì)胞Meg-01內(nèi)c-myc的表達(dá)[J];中華血液學(xué)雜志;2001年01期
7 楊玲,劉善榮,湯淑萍,王鳳玫,劉厚奇;白血病抑制因子受體α亞基胞內(nèi)區(qū)遠(yuǎn)膜端對HL-60細(xì)胞增殖分化的影響[J];中華血液學(xué)雜志;2004年11期
8 張明生;周云峰;謝叢華;張文杰;周福祥;屈雪菊;;阻斷細(xì)胞信號傳導(dǎo)子和轉(zhuǎn)錄激活子6基因表達(dá)對人結(jié)腸癌細(xì)胞凋亡的影響[J];中華醫(yī)學(xué)雜志;2006年02期
相關(guān)博士學(xué)位論文 前9條
1 黃定德;SHP-1和SHP-2在γ射線誘發(fā)的惡性腫瘤中作用的實(shí)驗(yàn)研究[D];第二軍醫(yī)大學(xué);2002年
2 趙東紅;肝癌細(xì)胞中Wnt及STAT3信號轉(zhuǎn)導(dǎo)途徑異常及其功能研究&中國家蠶抗菌肽基因的真核表達(dá)[D];南京師范大學(xué);2002年
3 孫紅穎;來源于人樹突狀細(xì)胞和骨髓基質(zhì)細(xì)胞的兩個(gè)新分子CRL2和CLM的克隆與功能的研究[D];浙江大學(xué);2004年
4 楊帆;1. 慢性粒細(xì)胞性白血病融合基因bcr/abl第一外顯子條件性基因打靶的實(shí)驗(yàn)研究 2. RNA干擾在哺乳動(dòng)物細(xì)胞中的初步應(yīng)用性研究[D];中國協(xié)和醫(yī)科大學(xué);2004年
5 張道宮;STAT3、Survivin在喉癌中的表達(dá)及AG490抑制喉癌細(xì)胞STAT3信號傳導(dǎo)通路的研究[D];山東大學(xué);2006年
6 于俠;重組白介素-12對小鼠病毒性心肌炎治療機(jī)制的研究[D];吉林大學(xué);2007年
7 祝華斌;溶瘤單純皰疹病毒mtHSV的小鼠肉瘤治療及其免疫機(jī)制研究[D];武漢大學(xué);2007年
8 紀(jì)華;PIAS3在人膠質(zhì)瘤中的表達(dá)及其對膠質(zhì)瘤細(xì)胞凋亡和細(xì)胞周期的影響[D];第三軍醫(yī)大學(xué);2007年
9 李光輝;RNA干擾STAT3基因?qū)θ四z質(zhì)瘤干細(xì)胞增殖、分化、凋亡的影響[D];第三軍醫(yī)大學(xué);2007年
相關(guān)碩士學(xué)位論文 前10條
1 潘俊江;STAT3、cyclinD1和Bcl-xl在原發(fā)性肝癌中的表達(dá)及其意義[D];重慶醫(yī)科大學(xué);2004年
2 單繼寬;白血病抑制因子受體細(xì)胞內(nèi)區(qū)結(jié)構(gòu)與白血病細(xì)胞HL-60內(nèi)分化、增殖信號的關(guān)系[D];第二軍醫(yī)大學(xué);2001年
3 陳冰亞;卵巢上皮癌中VEGF、VEGFRs表達(dá)與STATs活化的相關(guān)性研究[D];浙江大學(xué);2002年
4 胡波;酪氨酸蛋白磷酸酶Shp-2和白血病抑制因子影響HL-60細(xì)胞增殖與分化過程中的相互關(guān)系[D];第二軍醫(yī)大學(xué);2002年
5 袁俊;1.STAT3在白介素6介導(dǎo)的肝癌細(xì)胞遷移和增殖中的作用研究 2.5-氟尿嘧啶與高能聚焦超聲刀的結(jié)合在人回盲腸癌裸鼠腫瘤治療中的作用[D];南京師范大學(xué);2003年
6 季e鹲,
本文編號:2307920
本文鏈接:http://sikaile.net/yixuelunwen/binglixuelunwen/2307920.html