辽东学院学报(自然科学版)
遼東學院學報(自然科學版)
료동학원학보(자연과학판)
JOURNAL OF LIAODONG UNIVERSITY(NATURAL SCIENCES)
2015年
1期
48-53
,共6页
乙酰肝素酶-1%多配体蛋白聚糖-1%肝癌%侵袭
乙酰肝素酶-1%多配體蛋白聚糖-1%肝癌%侵襲
을선간소매-1%다배체단백취당-1%간암%침습
heparanase-1%syndecan-1%hepatocarcinoma%invasion
乙酰肝素酶-1( Heparanase-1, HPA-1)/多配体蛋白聚糖-1( Syndecan-1, SDC-1)轴调控多种肿瘤细胞的转移。肿瘤细胞侵袭能力的改变是导致肿瘤脱离原发组织,进而向远隔器官转移的关键启动因素。为了检测Heparanase-1/Syndecan-1轴在肝癌细胞中是否存在及其对肝癌细胞侵袭能力的影响,我们利用SDC-1小干扰RNA及重组HPA-1(rHPA-1)分别处理肝癌细胞Hepa1-6,再通过反转录PCR ( RT-PCR)、 Western-blot及免疫细胞化学检测SDC-1表达,应用体外基质胶侵袭实验观察细胞侵袭能力的改变。结果显示: SDC-1小干扰RNA明显抑制SDC-1表达;rHPA-1处理显著下调SDC-1蛋白的分子量,但没有改变SDC-1的mRNA表达; SDC-1表达下调及rHPA-1处理均促进He-pa1-6细胞的侵袭。因此得出结论: HPA-1通过作用于SDC-1蛋白,即形成Heparanase-1/Syndecan-1轴启动肝癌细胞转移。
乙酰肝素酶-1( Heparanase-1, HPA-1)/多配體蛋白聚糖-1( Syndecan-1, SDC-1)軸調控多種腫瘤細胞的轉移。腫瘤細胞侵襲能力的改變是導緻腫瘤脫離原髮組織,進而嚮遠隔器官轉移的關鍵啟動因素。為瞭檢測Heparanase-1/Syndecan-1軸在肝癌細胞中是否存在及其對肝癌細胞侵襲能力的影響,我們利用SDC-1小榦擾RNA及重組HPA-1(rHPA-1)分彆處理肝癌細胞Hepa1-6,再通過反轉錄PCR ( RT-PCR)、 Western-blot及免疫細胞化學檢測SDC-1錶達,應用體外基質膠侵襲實驗觀察細胞侵襲能力的改變。結果顯示: SDC-1小榦擾RNA明顯抑製SDC-1錶達;rHPA-1處理顯著下調SDC-1蛋白的分子量,但沒有改變SDC-1的mRNA錶達; SDC-1錶達下調及rHPA-1處理均促進He-pa1-6細胞的侵襲。因此得齣結論: HPA-1通過作用于SDC-1蛋白,即形成Heparanase-1/Syndecan-1軸啟動肝癌細胞轉移。
을선간소매-1( Heparanase-1, HPA-1)/다배체단백취당-1( Syndecan-1, SDC-1)축조공다충종류세포적전이。종류세포침습능력적개변시도치종류탈리원발조직,진이향원격기관전이적관건계동인소。위료검측Heparanase-1/Syndecan-1축재간암세포중시부존재급기대간암세포침습능력적영향,아문이용SDC-1소간우RNA급중조HPA-1(rHPA-1)분별처리간암세포Hepa1-6,재통과반전록PCR ( RT-PCR)、 Western-blot급면역세포화학검측SDC-1표체,응용체외기질효침습실험관찰세포침습능력적개변。결과현시: SDC-1소간우RNA명현억제SDC-1표체;rHPA-1처리현저하조SDC-1단백적분자량,단몰유개변SDC-1적mRNA표체; SDC-1표체하조급rHPA-1처리균촉진He-pa1-6세포적침습。인차득출결론: HPA-1통과작용우SDC-1단백,즉형성Heparanase-1/Syndecan-1축계동간암세포전이。
Heparanase-1/Syndecan-1 axis mediates the metastasis of many types of tumors.The change in invasive ability of tumor cell is the key factor to induce the spread of tumor cells from primary lesions to distant sites.This study aims to detect the existence of Heparanase -1/syndecan -1 axis and the involved effects of Heparanase-1/syndecan-1 axis on invasive ability of hepatocarcinoma cell Hepa1-6.SDC-1 small interfering RNA and recombinant HPA-1 ( rHPA-1) were used to treat Hepa1-6 cells, and then SDC-1 expression was detected by RT-PCR, Western-blot and immunocytochemistry assays, and Matrigel invasion test was performed to observe the invasive ability.The results showed that SDC-1 small interfering RNA obviously inhibited SDC-1 expression; the treatment of rHPA -1 significantly down -regulated the molecule weight of SDC -1, but not changed the levels of SDC-1 mRNA;both SDC-1 knockdown and rHPA-1 treatment promoted the invasion of Hepa1-6 cells.In conclusion, HPA-1 induces the metastasis of hepatocarcinoma cell via acting on SDC-1 pro-tein.