中南医学科学杂志
中南醫學科學雜誌
중남의학과학잡지
JOURNAL OF UNIVERSITY OF SOUTH CHINA(MEDICAL EDITION)
2014年
4期
351-354,366
,共5页
魏付桥%申清香%刘昌化%罗康宁%谢文彪%胡军
魏付橋%申清香%劉昌化%囉康寧%謝文彪%鬍軍
위부교%신청향%류창화%라강저%사문표%호군
异硫氰酸苯乙酯%SW480细胞%基质金属蛋白酶9%PI3K/Akt%核转录因子κB
異硫氰痠苯乙酯%SW480細胞%基質金屬蛋白酶9%PI3K/Akt%覈轉錄因子κB
이류청산분을지%SW480세포%기질금속단백매9%PI3K/Akt%핵전록인자κB
PEITC%SW480 cells%MMP-9%PI3K/AKT%NF-κB
目的:观察异硫氰酸苯乙酯(PEITC)对结肠癌细胞基质金属蛋白酶9(MMP-9)表达的影响及其分子机制。方法体外培养结肠癌细胞系SW480,分别用10、30、50μmol/L PEITC作用24 h,划痕愈合实验和侵袭实验分别检测PEITC对SW480细胞迁移与侵袭的影响。 RT-PCR检测MMP-9 mRNA的表达;Western blot检测MMP-9蛋白表达和蛋白激酶B( Akt)磷酸化。荧光素酶报告基因分析核转录因子κB( NF-κB)和MMP-9的活性。结果划痕愈合实验和Transwell小室实验结果显示,PEITC能在不影响细胞活性的条件下对SW480细胞侵袭和迁移具有一定抑制作用。同时,Western blot和RT-PCR结果证实PEITC能抑制MMP-9蛋白及mRNA表达。 PEITC能抑制Akt磷酸化以及NF-κB的转录活性。 PI3K抑制剂LY294002处理后,NF-κB-luc活性以及MMP-9蛋白表达显著降低。此外,不同浓度PEITC处理能显著抑制MMP-9的启动子活性。结论 PEITC是一种潜在的抗结肠癌细胞转移药物,它可能通过影响PI3K/NF-κB通路抑制MMP-9表达而发挥作用。
目的:觀察異硫氰痠苯乙酯(PEITC)對結腸癌細胞基質金屬蛋白酶9(MMP-9)錶達的影響及其分子機製。方法體外培養結腸癌細胞繫SW480,分彆用10、30、50μmol/L PEITC作用24 h,劃痕愈閤實驗和侵襲實驗分彆檢測PEITC對SW480細胞遷移與侵襲的影響。 RT-PCR檢測MMP-9 mRNA的錶達;Western blot檢測MMP-9蛋白錶達和蛋白激酶B( Akt)燐痠化。熒光素酶報告基因分析覈轉錄因子κB( NF-κB)和MMP-9的活性。結果劃痕愈閤實驗和Transwell小室實驗結果顯示,PEITC能在不影響細胞活性的條件下對SW480細胞侵襲和遷移具有一定抑製作用。同時,Western blot和RT-PCR結果證實PEITC能抑製MMP-9蛋白及mRNA錶達。 PEITC能抑製Akt燐痠化以及NF-κB的轉錄活性。 PI3K抑製劑LY294002處理後,NF-κB-luc活性以及MMP-9蛋白錶達顯著降低。此外,不同濃度PEITC處理能顯著抑製MMP-9的啟動子活性。結論 PEITC是一種潛在的抗結腸癌細胞轉移藥物,它可能通過影響PI3K/NF-κB通路抑製MMP-9錶達而髮揮作用。
목적:관찰이류청산분을지(PEITC)대결장암세포기질금속단백매9(MMP-9)표체적영향급기분자궤제。방법체외배양결장암세포계SW480,분별용10、30、50μmol/L PEITC작용24 h,화흔유합실험화침습실험분별검측PEITC대SW480세포천이여침습적영향。 RT-PCR검측MMP-9 mRNA적표체;Western blot검측MMP-9단백표체화단백격매B( Akt)린산화。형광소매보고기인분석핵전록인자κB( NF-κB)화MMP-9적활성。결과화흔유합실험화Transwell소실실험결과현시,PEITC능재불영향세포활성적조건하대SW480세포침습화천이구유일정억제작용。동시,Western blot화RT-PCR결과증실PEITC능억제MMP-9단백급mRNA표체。 PEITC능억제Akt린산화이급NF-κB적전록활성。 PI3K억제제LY294002처리후,NF-κB-luc활성이급MMP-9단백표체현저강저。차외,불동농도PEITC처리능현저억제MMP-9적계동자활성。결론 PEITC시일충잠재적항결장암세포전이약물,타가능통과영향PI3K/NF-κB통로억제MMP-9표체이발휘작용。
Objective To investigate the effect and molecular mechanism of PEITC on matrix metalloproteinase-9 ( MMP-9) expression in human colon cancer SW480 cells. Methods Human colon cancer SW480 cell line was cultured in vitro,and treated with 10,30,50μmol/L PEITC for 24h. Cell viability,cell migration and invasion was analyzed by MTT assay, scratch healing assay and transwell membrane assay,respectably. Expression of MMP-9 mRNA was analyzed by RT-PCR. Pro-tein expression and phosphorylation of Akt were detected by Western blot. Activity of NF-κB and MMP-9 were analyzed by lu-ciferase reporter assay. Results PEITC reduced SW480 cells invasion and migration without affecting the viability of cells, as demonstrated by scratch healing and transwell membrane assay. Furthermore, Western blot and RT-PCR showed PEITC markedly inhibited MMP-9 activity and expression at both protein and mRNA levels. PEITC attenuated Akt phosphorylation and activity of NF-κB. Moreover,LY294002,an inhibitor of PI3K,significantly inhibited NF-κB transcriptional activity and MMP-9 expression. In addition,different concentration of PEITC could inhibit the promotion activity of MMP-9. Conclusion PEITC as a potential anti-invasive agent by inhibiting MMP-9 is involved in PI3K/NF-κB pathways.