目的:探究敲减解整联蛋白及金属蛋白酶(a disintegrin and metalloproteinase,ADAM)结构域样癸蛋白1(ADAM domain-like decysin 1,ADAMDEC1)对胰腺癌细胞增殖、迁移和侵袭能力的影响.方法:利用GEPIA和UALCAN在线数据库对ADAMDEC1在胰腺癌组织中的表达情况进行分析.Western blot检测人胰腺癌细胞系(MIA PaCa-2和PANC-1)和胰腺导管细胞系(hTERT-HPNE)中ADAMDEC1的蛋白表达水平.采用CCK-8实验、集落形成实验、细胞划痕实验和Transwell实验检测敲减ADAMDEC1对胰腺癌细胞增殖、迁移和侵袭能力的影响;Western blot检测敲减ADAMDEC1对胰腺癌细胞中迁移、侵袭及Wnt/β-catenin信号通路相关蛋白表达水平的影响.此外,通过恢复性实验,检测Wnt/β-catenin信号通路激动剂CHIR-99021对敲减ADAMDEC1抑制胰腺癌细胞生长和转移作用的影响.结果:(1)ADAMDEC1在胰腺癌中高表达;(2)敲减ADAMDEC1表达后,胰腺癌细胞增殖、迁移和侵袭能力显著下降;(3)敲减ADAMDEC1后,E-cadherin蛋白表达增加,而基质金属蛋白酶9、N-cadherin和vimen-tin蛋白表达减少,Wnt/β-catenin信号通路相关蛋白表达亦减少;(4)CHIR-99021与ADAMDEC1小干扰RNA共处理胰腺癌细胞,可逆转敲减ADAMDEC1对胰腺癌细胞增殖、迁移和侵袭能力的抑制作用.结论:ADAMDEC1在胰腺癌中高表达,可通过Wnt/β-catenin信号通路调控胰腺癌细胞的增殖、迁移和侵袭.
ADAMDEC1 regulates growth and migration of pancreatic carcinoma cells through Wnt/β-catenin signaling pathway
AIM:To investigate the effect of a disintegrin and metalloproteinase(ADAM)domain-like decy-sin 1(ADAMDEC1)knockdown on the proliferation,migration and invasion of pancreatic carcinoma cells.METHODS:Expression levels of ADAMDEC1 in pancreatic carcinoma tissues were analyzed using the GEPIA and UALCAN online da-tabases.Western blot analysis was employed to detect the protein expression levels of ADAMDEC1 in pancreatic carcino-ma cell lines(MIA PaCa-2 and PANC-1)and pancreatic ductal cell line(hTERT-HPNE).The effects of ADAMDEC1 knockdown on cell proliferation,migration and invasion were evaluated using CCK-8,colony formation,wound-healing and Transwell assays.Additionally,Western blot analysis was used to detect the effects of ADAMDEC1 knockdown on the expression levels of migration and invasion markers,as well as Wnt/β-catenin signaling pathway-related proteins in pancre-atic carcinoma cells.Furthermore,a recovery experiment was conducted to assess the role of Wnt/β-catenin signaling path-way agonist CHIR-99021 in ADAMDEC1 knockdown-induced inhibition of pancreatic carcinoma cell growth and migra-tion.RESULTS:(1)ADAMDEC1 was highly expressed in pancreatic carcinoma cells.(2)Knockdown of ADAMDEC1 led to a significant reduction in the proliferation,migration and invasion of pancreatic carcinoma cells.(3)Knockdown of ADAMDEC1 resulted in increased E-cadherin protein expression and decreased levels of matrix metalloproteinase 9,N-cadherin and vimentin proteins,alongside a reduction in the expression of Wnt/β-catenin signaling pathway-related pro-teins.(4)Co-treatment of pancreatic carcinoma cells with CHIR-99021 and ADAMDEC1 small interfering RNA reversed the inhibitory effects of ADAMDEC1 knockdown on cell proliferation,migration,and invasion.CONCLUSION:ADAMDEC1 is highly expressed in pancreatic carcinoma.Targeted silencing of ADAMDEC1 has the potential to inhibit the prolifera-tion,migration and invasion of pancreatic carcinoma cells by regulating the Wnt/β-catenin signaling pathway.
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