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1、海南醫(yī)學(xué)2014年5月第25卷第9期HainanMedJ,May2014,Vo1.25,No.9doi:10.3969/j.issn.1003—6350.2014.09.0488·論大鼠脂肪干細(xì)胞分離培養(yǎng)及細(xì)胞表型的研究呂春燕,陳高莉,楊玲,陳昌金,袁慧,楊雪梅(1.成都市第五人民醫(yī)院病理科,四川成都611130;2.成都中醫(yī)藥大學(xué)附屬醫(yī)院檢驗(yàn)科,四川成都610072;3.成都中醫(yī)藥大學(xué)附屬醫(yī)院中心實(shí)驗(yàn)室,四川成都610072【摘要】目的分離、培養(yǎng)和凍存大鼠脂肪干細(xì)胞,并對(duì)其相關(guān)的細(xì)胞表型進(jìn)行研究,為利用脂肪干細(xì)胞
2、治療梗阻性腎病腎纖維化等實(shí)驗(yàn)提供依據(jù)。方法取大鼠3只,經(jīng)消毒麻醉,采集其腹股溝處脂肪組織分離培養(yǎng)其中的脂肪干細(xì)胞,用相差倒置顯微鏡觀察細(xì)胞生長(zhǎng)方式及形態(tài)變化。取第三代細(xì)胞用流式細(xì)胞儀作細(xì)胞免疫表型的鑒定。凍存復(fù)蘇后再次檢測(cè)干細(xì)胞生長(zhǎng)情況及表型。結(jié)果大鼠脂肪組織中含有大量間充質(zhì)干細(xì)胞,原代培養(yǎng)的ASCs呈小圓形或星形,經(jīng)傳代后的脂肪干細(xì)胞形態(tài)比較均一,呈長(zhǎng)梭形,個(gè)別略呈多角形、漩渦樣生長(zhǎng)。其細(xì)胞表型為CDCD高表達(dá),CD,、CD。中等程度表達(dá),CD極低表達(dá)。脂肪干細(xì)胞經(jīng)低溫凍存3個(gè)月,復(fù)蘇后,生長(zhǎng)活力和存活率與凍存前
3、未見(jiàn)明顯區(qū)別,CD和CD檢測(cè)與凍存前表達(dá)率也一致。結(jié)論建立了一種脂肪干細(xì)胞的有效分離、培養(yǎng)及保存方法,并對(duì)其表面標(biāo)志物進(jìn)行鑒定,為利用脂肪干細(xì)胞進(jìn)行進(jìn)一步的實(shí)驗(yàn)研究提供了依據(jù)?!娟P(guān)鍵詞】脂肪干細(xì)胞;細(xì)胞培養(yǎng);表面標(biāo)志物;鑒定;凍存【中圖分類(lèi)號(hào)】R-332【文獻(xiàn)標(biāo)識(shí)碼】A【文章編號(hào)】loo3—635O(2O14)O9—1256—o4Isolation,cultivation,identifyandcryopreservationofmesenchymalstemcellsfromratadiposetissue/nv
4、itro.LVChun-yan1,CHENG∞一H2YANGLing2CHENChang—3,YUANHui,YANGXne-mei.1.DepartmentofPathology,theFifthPeopleHospitalofChengdu,Chengdu611130,Sichuan,CHINA;2.DepartmentofLaboratory,AffiliatedHo~italtoChengduUniversityofTraditionalChineseMedicine,Chengdu610072,Sichu
5、an,CHINA;iCentralLaboratory,AffiliatedHospitaltoChengduUniversityofTraditionalChineseMedicine,Chengdu610072,Sichuan,CHINA【Abstract】ObjectiveTosearchamethodforisolation,cultivation,identificationandcryopreservationofmesenchymalstemcellsfromratadiposetissueinvit
6、ro.MethodThreeratswasanaesthetizedanddisinfectedCOIl-ventionally,theiringuinaladiposetissueweretakenandshearedtopaste.111efragmentsweredigestedbycollagenasetypeI.suspendedbyDMEM.a(chǎn)ndplantedinculturedish.Thenthecellswereculturedinincubatorculture.Theirfirstmediu
7、mchangehappenafter24—48hours,thenthechangeOCCUF2~3daysonceagain,after5~7daysand80%cellfu—sion,ceilsweredigestedbyTrypsinandpassagedbyEDTA.CellmicroscopywasusedtomorphologicalobservationandthetIlirdgenerationwasusedtoidentifybyflowcytometriccellcycle.ResultsRat
8、sfathadalargeamountofadipose—derivedmesenchymalstemcells(ADMSCs).TheshapeofprimaryculturedASCswasastarormuchhorn;af.terpassageoftheASCsrelativelyuniformshape,fusiformshape,spiralgr