脂肪組織來(lái)源干細(xì)胞單克隆培養(yǎng)技術(shù)及其表面抗原的研究
[Abstract]:Background:
Tissue engineering technology, which combines a small amount of seed cells with biomaterials after in vitro amplification, repairs large tissue or organ defects and reconstructs the physiological function of the defect site, provides a new way to solve the problems of tissue defect in clinic, and has attracted wide attention recently.
Adult stem cells can be derived from bone marrow, adipose tissue, skin, muscle and other tissues, including bone marrow stromal cells (BMSCs), which are found early, easy to obtain materials, minimally invasive and the most studied. With the popularization and deepening of research, adipose tissue-derived stem cells (ADSCs) have been gradually recognized by people. Compared with BMSCs, ADSCs are more widely distributed in the body and have more available cells. The advantages of acceptance show great potential in the research and application of tissue engineering.
It is generally believed that ADSCs isolated by common methods are a mixed group of cells with different differentiation potentials and a large number of mixed cells. Only some of them can form adipocytes, which will inevitably affect the success rate of adipose tissue construction. How to improve the purity and purity of stem cells extracted from adipose tissue Finding markers for identifying stem cells has been one of the most pressing problems. Although there have been many reports on the surface antigens of ADSCs, there is still no consensus on the specific surface markers of ADSCs. In addition, many cell clones with different differentiation potentials have been isolated and cultured from adipose-derived cells by cyclic cloning, but no analysis of the related surface antigens has been made. There is no report on the use of this method for stem cell research in China. In order to purify adipose tissue-derived stem cells and detect the expression of their surface antigens, the potential of adipogenic differentiation was identified according to different clones, and the effect of adipogenic inducers on the expression of some surface antigens of ADSCs was detected. To explore the relationship between adipogenic differentiation potential and surface antigen expression of ADSCs and provide experimental basis for the application of ADSCs in adipose tissue engineering.
Objective:
1. Subcutaneous adipose tissue-derived stem cells (ADSCs) were extracted from human adipose tissue for monoclonal culture and amplification to obtain monoclonal ADSCs and to identify the expression of stem cell-related surface antigens in different cloned cells.
2. By identifying and comparing the growth kinetics, morphology and adipogenic differentiation ability of different clones of ADSCs, the relationship between adipogenic differentiation potential and surface antigen expression of ADSCs was explored, and the cell markers representing the adipogenic differentiation subgroup were found to improve the success rate of adipose tissue construction.
3. To compare the expression of ADSCs related surface antigens before and after adipogenic induction, and to study the effect of adipogenic inducers on the expression of ADSCs related surface antigens, so as to lay an experimental foundation for the application of ADSCs in adipose tissue engineering.
Method:
Adipose tissue was harvested and cultured by collagenase digestion. Cells were cultured and passed to the second generation. The morphological and biological characteristics of monoclonal ADSCs were observed in vitro. The expression of CD29, CD34, CD44, CD54, CD106 and ABCG2 were detected by flow cytometry. The expression of CD34, CD54 and CD106 in ADSCs of the 3rd generation was detected before and 7 days after the induction of adipogenesis. The 4th generation ADSCs were adipogenesis, osteogenic differentiation was induced, oil red "O" staining and alizarin red staining were used to characterize.
Result:
A large number of ADSCs can be cultured from subcutaneous adipose tissue. A total of 10 monoclonal cell groups were obtained by clone formation test. The morphological and proliferative activities of different clonal cells were different. The number of ADSCs was 2 CD29 was overexpressed in all clones, CD44 was underexpressed in ABCG2 (2.5+1.4%) and CD34, CD54 and CD106 were significantly different in different populations. The expression of CD34, CD54 and CD106 in ADSCs of the third generation had no significant difference after 7 days of adipogenesis induction compared with that before induction. Alizarin red staining showed that osteoblasts and calcium salt deposits were stained red.
Conclusion:
The results of this experiment showed that the subcutaneous adipose tissue could be digested by enzymatic digestion and cultured to extract multipotent stem cells. ADSCs could be purified by clone formation test. High purity cells with mesenchymal characteristics could be obtained. The cells were subcultured in vitro for many times. Long-term culture did not change the morphology and proliferative activity of the cells. There are similarities and differences in the expression of surface markers and the ability of adipogenic differentiation among the monoclonal cell populations. CD34 and CD54 with significant differences may be used as markers for the purification and sorting of highly adipogenic cell populations in ADSCs. These markers should be identified in order to clarify the relationship between these markers and adipogenic differentiation, establish purification technology of adipose tissue-derived stromal cells, and construct adipose tissue for ADSCs. The experimental basis for filling tissue to repair defects of tissue engineering is established.
【學(xué)位授予單位】:南方醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2008
【分類(lèi)號(hào)】:R329
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 ;本刊組織構(gòu)建欄目已出版“肝臟組織工程”研究的相關(guān)文章[J];中國(guó)組織工程研究與臨床康復(fù);2011年20期
2 ;本刊組織構(gòu)建欄目已出版“神經(jīng)組織工程”研究的相關(guān)文章[J];中國(guó)組織工程研究與臨床康復(fù);2011年24期
3 ;中國(guó)組織工程韌帶研究領(lǐng)域——著名專(zhuān)家介紹[J];中國(guó)組織工程研究與臨床康復(fù);2011年24期
4 ;本刊組織構(gòu)建欄目已出版“泌尿組織工程”研究的相關(guān)文章[J];中國(guó)組織工程研究與臨床康復(fù);2011年24期
5 ;組織工程角膜材料[J];中國(guó)組織工程研究與臨床康復(fù);2011年21期
6 ;中國(guó)神經(jīng)組織工程研究領(lǐng)域——著名專(zhuān)家介紹[J];中國(guó)組織工程研究與臨床康復(fù);2011年20期
7 李世龍;劉毅;;脂肪組織工程研究進(jìn)展[J];中國(guó)美容醫(yī)學(xué);2011年06期
8 ;本刊組織構(gòu)建欄目已出版“韌帶組織工程”研究的相關(guān)文章[J];中國(guó)組織工程研究與臨床康復(fù);2011年24期
9 劉雋煒;董念國(guó);;內(nèi)皮祖細(xì)胞研究進(jìn)展[J];心血管病學(xué)進(jìn)展;2011年04期
10 陳梅;左保齊;;組織工程軟骨支架材料綜述[J];現(xiàn)代絲綢科學(xué)與技術(shù);2011年03期
相關(guān)會(huì)議論文 前10條
1 陳馨;邱凱;劉建偉;萬(wàn)昌秀;;組織工程用三維基質(zhì)水凝膠的初步研究[A];第九屆全國(guó)生物材料學(xué)術(shù)會(huì)議(CBMS-9)論文集[C];2002年
2 張西正;;生物力學(xué)在組織工程中的應(yīng)用[A];第九屆全國(guó)生物力學(xué)學(xué)術(shù)會(huì)議論文匯編[C];2009年
3 白曉峰;田衛(wèi)東;陳希哲;;組織工程血管化的相關(guān)研究[A];2004年中國(guó)口腔頜面修復(fù)重建外科學(xué)術(shù)會(huì)議論文匯編[C];2004年
4 李雪盛;孫建軍;姜偉;劉肖;;組織工程化緩釋BMP-2聽(tīng)骨贗復(fù)物聽(tīng)泡植入對(duì)豚鼠耳蝸功能的影響[A];2010全國(guó)耳鼻咽喉頭頸外科中青年學(xué)術(shù)會(huì)議論文匯編[C];2010年
5 周呈文;王常勇;Descamps Michel;盧建熙;;磷酸鈣多孔生物陶瓷作為組織工程支架的應(yīng)用研究[A];第九屆全國(guó)生物材料學(xué)術(shù)會(huì)議(CBMS-9)論文集[C];2002年
6 魏清榮;萬(wàn)昌秀;劉建偉;趙強(qiáng);;組織工程用牛心包材料體外降解規(guī)律初步研究[A];第九屆全國(guó)生物材料學(xué)術(shù)會(huì)議(CBMS-9)論文集[C];2002年
7 楊德業(yè);張懷勤;季亢挺;黃曉燕;徐力辛;;內(nèi)皮祖細(xì)胞在制備組織工程血管中的角色[A];中華醫(yī)學(xué)會(huì)心血管病分會(huì)第八次全國(guó)心血管病學(xué)術(shù)會(huì)議匯編[C];2004年
8 古松鋼;許建衡;;干細(xì)胞與組織工程研究的新進(jìn)展[A];2005'中國(guó)修復(fù)重建外科論壇論文匯編[C];2005年
9 孫慶蘭;張西正;張華;李瑞欣;郭勇;張燕;;組織工程血管支架材料的研究進(jìn)展(綜述)[A];天津市生物醫(yī)學(xué)工程學(xué)會(huì)第29屆學(xué)術(shù)年會(huì)暨首屆生物醫(yī)學(xué)工程前沿科學(xué)研討會(huì)論文集[C];2009年
10 蔡紹皙;盧曉;王遠(yuǎn)亮;王紅兵;潘君;葉志義;黃豈平;秦建;吳澤志;;組織工程的一組基礎(chǔ)實(shí)驗(yàn)研究:細(xì)胞與支撐介質(zhì)間的相互作用[A];“力學(xué)2000”學(xué)術(shù)大會(huì)論文集[C];2000年
相關(guān)重要報(bào)紙文章 前10條
1 本報(bào)記者 王丹;組織與器官重建:讓夢(mèng)想照進(jìn)現(xiàn)實(shí)[N];健康報(bào);2009年
2 記者 沈雪梅;通大參與“干細(xì)胞與組織工程”研究[N];南通日?qǐng)?bào);2009年
3 綜合;南通大學(xué)開(kāi)展“干細(xì)胞與組織工程”研究[N];江蘇科技報(bào);2010年
4 記者 李鵬;是什么擊中了曹誼林?[N];北京科技報(bào);2011年
5 ;組織工程研究首次用于臨床[N];經(jīng)濟(jì)參考報(bào);2004年
6 畢東海;組織工程前瞻[N];浙江日?qǐng)?bào);2000年
7 本報(bào)記者 白曉蕓;人類(lèi)機(jī)體再造的曙光組織工程[N];中國(guó)中醫(yī)藥報(bào);2002年
8 常麗君;實(shí)驗(yàn)室造出功能性組織工程小腸[N];科技日?qǐng)?bào);2011年
9 楊昆;組織工程再造生命奇跡[N];人民政協(xié)報(bào);2000年
10 項(xiàng)錚 曙光 編譯;組織工程:從科研到產(chǎn)業(yè)[N];科技日?qǐng)?bào);2001年
相關(guān)博士學(xué)位論文 前10條
1 周曉東;胎盤(pán)基質(zhì)干細(xì)胞骨向分化及生物反應(yīng)器構(gòu)建骨組織的修復(fù)效果[D];第四軍醫(yī)大學(xué);2005年
2 孫曉紅;種植施萬(wàn)細(xì)胞的脫細(xì)胞同種異體神經(jīng)移植物修復(fù)大鼠坐骨神經(jīng)缺損的實(shí)驗(yàn)研究[D];中國(guó)醫(yī)科大學(xué);2005年
3 戚孟春;BMP-7基因修飾的自體骨髓間充質(zhì)干細(xì)胞促進(jìn)大鼠下頜牽張成骨的實(shí)驗(yàn)研究[D];四川大學(xué);2005年
4 鄭毅雄;人骨膜間質(zhì)祖細(xì)胞作為組織工程種子細(xì)胞的分子特征研究[D];浙江大學(xué);2006年
5 唐月軍;納米增韌(HA-ZrO_2系)生物復(fù)合多孔陶瓷的制備及其頜骨缺損修復(fù)實(shí)驗(yàn)研究[D];第二軍醫(yī)大學(xué);2006年
6 高峰;組織工程補(bǔ)片修補(bǔ)犬腹主動(dòng)脈的實(shí)驗(yàn)研究[D];中國(guó)協(xié)和醫(yī)科大學(xué);2003年
7 符彥基;骨形成蛋白-7基因修飾的骨髓間充質(zhì)干細(xì)胞對(duì)腎缺血再灌注損傷修復(fù)作用的實(shí)驗(yàn)研究[D];南昌大學(xué);2008年
8 吳志偉;人胚雪旺細(xì)胞組織工程神經(jīng)的構(gòu)建[D];復(fù)旦大學(xué);2004年
9 顧春虎;去細(xì)胞豬主動(dòng)脈瓣構(gòu)建組織工程心臟瓣膜的初步實(shí)驗(yàn)研究[D];第四軍醫(yī)大學(xué);2005年
10 張微波;牙髓干細(xì)胞體外分化能力的研究[D];武漢大學(xué);2005年
相關(guān)碩士學(xué)位論文 前10條
1 常慶;AdLacZ基因修飾的山羊耳軟骨細(xì)胞復(fù)合F127構(gòu)建組織工程化軟骨的實(shí)驗(yàn)研究[D];蘇州大學(xué);2007年
2 陳偉豪;絲素蛋白膜修復(fù)犬尿道缺損的實(shí)驗(yàn)研究[D];南方醫(yī)科大學(xué);2008年
3 李娜;組織工程中應(yīng)變對(duì)骨髓間充質(zhì)干細(xì)胞增殖及成骨分化的影響[D];中國(guó)人民解放軍軍事醫(yī)學(xué)科學(xué)院;2005年
4 劉超;人骨髓干細(xì)胞成牙潛能的初步研究[D];福建師范大學(xué);2005年
5 劉偉鵬;骨髓間充質(zhì)干細(xì)胞復(fù)合PLGA支架修復(fù)組織損傷的實(shí)驗(yàn)研究[D];江西醫(yī)學(xué)院;2005年
6 張兆清;復(fù)合骨髓間充質(zhì)干細(xì)胞的組織工程皮膚修復(fù)皮膚缺損[D];第四軍醫(yī)大學(xué);2006年
7 李軍杰;膠原海綿為支架體外構(gòu)建工程化心肌組織的實(shí)驗(yàn)研究[D];第四軍醫(yī)大學(xué);2007年
8 殷迪;人羊膜上皮細(xì)胞與肌基膜管支架相容性的實(shí)驗(yàn)研究[D];吉林大學(xué);2008年
9 白彥東;人骨髓間充質(zhì)干細(xì)胞向軟骨誘導(dǎo)分化的基礎(chǔ)研究[D];大連醫(yī)科大學(xué);2008年
10 王萬(wàn)鵬;羧乙基殼聚糖/納米羥基磷灰石復(fù)合材料的制備與組織工程氣管軟骨構(gòu)建的實(shí)驗(yàn)研究[D];揚(yáng)州大學(xué);2010年
,本文編號(hào):2224402
本文鏈接:http://sikaile.net/yixuelunwen/shiyanyixue/2224402.html