miR-199a-5p下调NF-κB信号通路激活水平抑制宫颈癌细胞恶性生物学行为

目的探讨miR-199a-5p对宫颈癌细胞生长、侵袭和迁移的影响和机制。方法 Real-time PCR测定miR-199a-5p在宫颈癌HeLa、HCC94、Ca Ski细胞和正常宫颈Ect1/E6E7细胞中的表达差异。在宫颈癌细胞中转染miR-199a-5p mimics,real-time PCR检测过表达效果,MTT检测增殖,克隆形成实验测定克隆形成能力,Transwell小室测定侵袭和迁移能力,Westernblot检测细胞中p-p65、p-IκB蛋白表达变化。使用核因子-κB(NF-κB)激活剂PMA处理转染miR-199a-5p mimics后的宫颈癌细胞,同样使用上述方法测定细胞生长、克隆、侵袭和迁移能力变化。结果 miR-199a-5p在宫颈癌HeLa、HCC94、CaSki细胞中的表达水平低于正常宫颈Ect1/E6E7细胞。miR-199a-5p mimics提高宫颈癌细胞中miR-199a-5p表达水平,降低细胞增殖、克隆、侵袭和迁移能力,减少细胞中p-p65、p-IκB蛋白表达。NF-κB激活剂PMA可以逆转miR-199a-5p对宫颈癌细胞增殖、克隆、侵袭和迁移能力的抑制作用。结论 miR-199a-5p通过下调NF-κB信号通路激活水平抑制宫颈癌细胞生长、侵袭和迁移。     

川楝素对人卵巢癌细胞侵袭和迁移的影响

目的:探讨川楝素(toosendanin,TSN)对人卵巢癌细胞迁移和侵袭能力的影响及相关机制。方法:用不同浓度川楝素处理人卵巢癌CAVO-3和SKVO-3细胞,采用CCK-8法检测TSN处理12、24、48、72和96 h后的细胞存活率;通过细胞划痕实验和Transwell小室侵袭实验检测TSN对人卵巢癌细胞的迁移和侵袭能力的影响;采用Western blot法检测核因子κB(NF-κB)p65、上皮型钙黏蛋白(E-cadherin)、神经型钙黏蛋白(N-cadherin)、波形蛋白(vimentin)和Snail蛋白的表达情况。结果:TSN抑制CAVO-3和SKVO-3细胞活力(P0.05)。与对照组相比,TSN组CAVO-3细胞的迁移和侵袭能力明显降低,且NF-κB p65和E-cadherin表达升高,N-cadherin、vimentin和Snail表达下降(P0.05);而加入NF-κB抑制剂BAY11-7082至TSN处理的细胞后明显逆转了以上效应,与TSN组相比,TSN+BAY11-7082组CAVO-3细胞的迁移和侵袭能力显著升高,且E-cadherin表达下降,N-cadherin、vimentin和Snail表达升高(P0.05)。结论:川楝素能抑制人卵巢癌细胞的迁移和侵袭能力,其机制可能与抑制由NF-κB/Snail信号通路所介导的上皮-间充质转化过程有关。     

冬凌草甲素抑制T细胞核因子κB(NF-κB)通路减轻小鼠实验性自身免疫性脑脊髓炎症状

目的探讨冬凌草甲素对实验性自身免疫性脑脊髓炎(EAE)的治疗作用及其机制。方法采用髓鞘少突胶质细胞糖蛋白35-55(MOG_(35-55))免疫C57BL/6雌性小鼠建立EAE模型,小鼠随机分为EAE对照组和冬凌草甲素治疗组,免疫后的第3、 5、 7天腹腔注射冬凌草甲素[15 mg/(kg·d)],对照组注射等量的PBS,观察各组小鼠的发病情况;发病高峰期脊髓切片HE染色观察脊髓炎细胞浸润情况,流式细胞术检测MOG反应性CD4~+ T细胞的增殖、凋亡,致病性1型辅助T(Th1)细胞、 Th17细胞的分化;ELISA检测γ干扰素(IFN-γ)和白细胞介素17(IL-17)水平;Western blot法检测核因子κBp65(NF-κBp65)、磷酸化的NF-κBp65(p-NF-κBp65)和磷酸化的NF-κB抑制蛋白(p-IκB)的表达。结果与对照组相比,冬凌草甲素治疗组EAE小鼠发病率降低,发病时间延迟,且疾病的严重程度明显减轻,骨髓炎细胞浸润减少;冬凌草甲素在体内和体外抑制髓鞘抗原反应性CD4~+ T细胞增殖并可诱导其凋亡;冬凌草甲素可抑制致病性Th1细胞、 Th17细胞分化,降低IFN-γ、 IL-17水平;冬凌草甲素可抑制IκB、 NF-κBp65的磷酸化。结论冬凌草甲素通过抑制NF-κB信号通路活化,抑制T细胞增殖和分化及炎性因子的分泌减轻小鼠EAE症状。     

颗粒蛋白前体(PGRN)敲除小鼠的巨噬细胞抑制乳腺癌细胞侵袭和迁移的分子机制

目的探究颗粒蛋白前体基因敲除(PGRN~(-/-))小鼠的巨噬细胞与乳腺癌细胞侵袭和迁移的关系及机制。方法选择野生型和PGRN~(-/-)小鼠巨噬细胞条件培养基培养乳腺癌细胞,采用Transwell~(TM)实验、划痕实验检测癌细胞的侵袭、迁移能力,Western blot法检测上皮钙黏蛋白(E-cadherin)、神经钙黏蛋白(N-cadherin)的表达。通过细胞因子芯片、实时定量PCR和ELISA检测野生型和PGRN~(-/-)小鼠巨噬细胞分泌的细胞因子差异;用筛选出的差异表达细胞因子白细胞介素6(IL-6)处理乳腺癌细胞,采用上述方法检测对癌细胞侵袭迁移能力的影响并采用Western blot法检测核因子κB(NF-κB)信号通路和Janus激酶/信号转导子和转录激活子3(JAK/STAT3)信号通路在其中的作用。结果 PGRN~(-/-)小鼠的巨噬细胞NF-κB信号通路被阻断,减少IL-6分泌,抑制乳腺癌细胞侵袭和迁移; IL-6激活JAK/STAT3信号通路促进乳腺癌细胞侵袭迁移。结论 PGRN~(-/-)小鼠的巨噬细胞NF-κB信号通路被阻断,下调IL-6表达,进而抑制JAK/STAT3信号通路的激活,抑制乳腺癌细胞的侵袭和迁移。     

微小RNA-3651过表达通过介导核因子κB信号通路抑制人舌癌细胞CAL27的生长与侵袭

目的 探讨微小RNA(miR)-3651过表达通过介导核因子（NF）-κB信号通路抑制人舌癌细胞CAL27生长与侵袭的机制。方法 将对数生长期CAL27细胞分为miR-3651 mimic组、mimic-NC组和对照组。采用qRT-PCR检测转染后细胞miR-3651水平，CCK-8检测细胞活力，Transwell检测细胞侵袭能力，划痕实验检测细胞迁移能力，光学显微镜下观察细胞上皮间质转化（epithelial-mesenchymal transition,EMT）的形成，Western blot检测E钙粘蛋白、N钙粘蛋白、波形蛋白、NF-κB p65和p-NF-κB p65蛋白表达。结果 mimic-NC组与对照组细胞miR-3651水平、细胞活力、侵袭细胞数、细胞迁移率和细胞形态均无明显差异（P>0.05）,E钙粘蛋白、N钙粘蛋白、波形蛋白和p-NF-κB p65/NF-κB p65蛋白表达均无明显差异（P>0.05）；与mimic-NC组相比，miR-3651 mimic组细胞miR-3651水平升高（P<0.05），培养的细胞第2、3、4天的活力降低（P<...     

过表达miR-151a-3p抑制PC-3前列腺癌细胞增殖和迁移

目的研究上调微小RNA-151a-3p(miR-151a-3p)对前列腺癌细胞增殖和迁移的影响和机制。方法采用实时荧光定量PCR检测PC-3M、C4-2B、22RV1、DU-145、PC-3、LNCaP人前列腺癌细胞和RWPE-1人正常前列腺上皮细胞中miR-151a-3p的表达量。以miR-151a-3p表达量最低的PC-3细胞为研究对象,生物信息学预测并采用双荧光素酶报告基因实验检验miR-151a-3p的潜在靶基因。转染miR-151a-3p模拟物或阴性对照微小RNA(miR-NC)至PC-3细胞。实时荧光定量PCR检测miR-151a-3p和潜在靶基因mRNA的表达量,Western blot法检测靶基因及下游信号通路蛋白表达量。采用MTT法检测PC-3细胞的增殖,Transwell~(TM)实验检测PC-3细胞的迁移能力。结果 miR-151a-3p在前列腺癌细胞的表达量明显低于RWPE-1人正常前列腺上皮细胞,其中PC-3细胞中的表达量最低。生物信息学预测及双荧光素酶报告基因实验表明NIMA相关激酶2(NEK2)是miR-151a-3p的潜在靶基因。转染miR-151a-3p模拟物后,PC-3细胞中miR-151a-3p的表达量明显上升,NEK2基因的表达量明显降低,NEK2基因下游磷脂酰肌醇3激酶-蛋白激酶B-哺乳动物雷帕霉素靶蛋白(PI3K-AKT-mTOR)信号通路蛋白水平降低。上调miR-151a-3p明显抑制前列腺癌PC-3细胞的增殖和迁移。结论miR-151a-3p在前列腺癌细胞中表达降低,上调miR-151a-3p的表达可通过降低NEK2基因及下游PI3K-AKT-mTOR信号通路蛋白的表达抑制前列腺癌PC-3细胞的增殖和迁移。     

miR-495-3p / WIF1 / Wnt 信号通路轴调节视网膜母细胞瘤细胞 增殖、 迁移和侵袭

目的 分析 miR-495-3p / Wnt 抑制因子 (Wnt inhibitor factor 1, WIF1) / Wnt 信号通路轴调节视网 膜母细胞瘤 (retinoblastoma, RB) 细胞增殖、 迁移和侵袭。 方法 生物信息学分析 WIF1 的差异表达及与 临床不良表型之间的关系, 并预测 miRNA 靶标; 双荧光酶素报告实验验证。 构建稳定过表达 WIF1 的 RB 细胞 (Vector 组、 WIF1 组)。 构建稳定过表达 miR-495-3p 的 RB 细胞 (miR-NC 组、 miR-495-3p 组和 miR495-3p + WIF1 组)。 Western 印迹检测 WIF1 蛋白及 Wnt 通路相关蛋白表达, 并进行体外功能试验。 裸鼠移 植瘤实验分析移植瘤体积重量。 免疫组化分析 WIF1 在 RB 组织中水平。 结果 WIF1 低表达, 与迁移、 侵袭 有关, 为 miR-495-3p 靶标, 双荧光酶素报告实验证实 WIF1 是 miR-495-3p 作用靶点。 WIF1 过表达抑制细胞增 殖、 迁移和侵袭, 影响细胞周期, 诱导凋亡。 体内实验显示 WIF1 在 RB 组织中过表达, 其过表达抑制瘤体生 长。 过表达 WIF1 下调 β-catenin、 c-Myc 蛋白水平 (P< 0. 05)。 过表达 miR-495-3p 下调 WIF1 蛋白水平, 上调 β-catenin 和 c-Myc 蛋白水平, 促进细胞增殖迁移、 迁移和侵袭, 抑制细胞凋亡 (P< 0. 05), 增加 WIF1 表达 可逆转 miR-495-3p 的作用 (P< 0. 05)。 结论 miR-495-3p 靶向 WIF1 通过 Wnt 信号通路抑制 RB 细胞增殖、 迁移和侵袭, 并诱导凋亡。     

miR-410-3p通过介导HMGB1的表达调控NF-κB信号通路调控缺氧缺血性脑损伤北大核心CSCD

目的:探究miR-410-3p通过介导HMGB1的表达调控NF-κB信号通路调控缺氧缺血性脑损伤的机制。方法:进行PC12细胞培养并分组:Normal组(正常PC12细胞)、NC组(缺血性处理的PC12细胞,转染阴性对照质粒)、Model组(缺血性处理的PC12细胞)、miR-410-3p mimic组(缺血性处理的PC12细胞,转染miR-410-3p过表达质粒)、HMGB1 vector组(缺血性处理的PC12细胞,转染HMGB1过表达质粒)、miR-410-3p mimic+HMGB1 vector组(缺血性处理的PC12细胞,共染miR-410-3p过表达和HMGB1过表达质粒)。双荧光素酶报告实验验证miR-410-3p和HMGB1靶向关系。Western blot检测各组细胞中HMGB1、NF-κB p65的蛋白表达情况,qRT-PCR检测miR-410-3p表达情况。CCK8和流式细胞术分别检测各组细胞增殖和凋亡情况。ELISA检测各组细胞炎症因子IL-8、IL-6、TNF-α含量。结果:miR-410-3p与HMGB1存在靶向关系。与Normal组相比,其余组细胞中miR-410-3p表达显著降低,HMGB1表达显著升高(均P<0.05)。与Normal组对比,其余各组细胞的增殖率明显下降,细胞凋亡率,炎症因子IL-8、IL-6、TNF-α含量,HMGB1、NF-κB p65水平均明显升高(均P<0.05)。miR-410-3p可促进细胞增殖,降低细胞凋亡率、炎症因子IL-8、IL-6、TNF-α含量及NF-κB p65水平,且miR-410-3p可通过负向调控HMGB1的表达,从而影响HMGB1/NF-κB通路对缺血性神经元的调控。结论:miR-410-3p过表达后,可通过抑制HMGB1/NF-κB通路表达,从而影响脑缺血性神经元细胞增殖、凋亡以及炎症损伤。     

白花蛇舌草上调miR-485-5p抑制人膀胱癌细胞系KU-19-19增殖、迁移和侵袭

目的探讨白花蛇舌草对膀胱癌细胞系KU-19-19增殖、迁移和侵袭的影响和可能的分子机制。方法将KU-19-19细胞分为对照组、白花蛇舌草组、miR-NC组、miR-485-5p组、anti-miR-NC组、anti-miR-485-5p组、白花蛇舌草+anti-miR-NC组、白花蛇舌草+anti-miR-485-5p组、白花蛇舌草+anti-miR-485-5p+LY294002组。细胞计数试剂盒(CCK-8)、Transwell实验、实时荧光定量PCR(RT-qPCR)分别检测细胞增殖、迁移侵袭以及miR-485-5p的表达。蛋白质印迹(Western blot)检测磷脂酰肌醇-3-羟激酶(PI3K)和蛋白激酶B(AKT)的磷酸化水平。结果白花蛇舌草干预后KU-19-19细胞增殖率、迁移侵袭细胞数显著降低,miR-485-5p表达显著升高(P0.05);过表达miR-485-5p后,KU-19-19细胞增殖率、迁移侵袭细胞数显著降低(P0.05);抑制miR-485-5p表达后,KU-19-19细胞增殖率、迁移侵袭细胞数显著升高(P0.05)。抑制miR-485-5p可以逆转降低白花蛇舌草对KU-19-19细胞增殖、迁移和侵袭的抑制作用(P0.05);LY294002可以逆转降低抑制miR-485-5p对白花蛇舌草处理的KU-19-19细胞增殖、迁移和侵袭的促进作用(P0.05)。结论白花蛇舌草通过上调miR-485-5p可抑制膀胱癌细胞的增殖、迁移和侵袭,其机制可能与抑制PI3K/AKT信号通路有关。     

右美托咪定对骨巨细胞瘤细胞增殖、侵袭及迁移的影响

目的探究右美托咪定(dexmedetomidine,DEX)对骨巨细胞瘤细胞增殖、侵袭及迁移的影响.方法将细胞分Control、DEX 0.01、0.1及1μmol/L组.BrdU检测细胞增殖,transwell检测细胞侵袭,划痕实验检测细胞迁移,免疫印迹检测Ki67、PCNA、Bcl-2、VEGF、MMP-2、MMP-9、NF-κB p65及其下游蛋白表达水平、p38 MAPK表达及其下游蛋白磷酸化比值.结果与Control组比较,DEX 0.1、1μmol/L组BrdU阳性细胞百分比、侵袭细胞数、划痕闭合率和Ki67、PCNA、Bcl-2、VEGF、MMP-2、MMP-9表达水平显著降低,抑制p38 MAPK、NF-κB信号通路的激活.结论DEX通过调控p38 MAPK及NF-κB表达抑制骨巨细胞瘤细胞增殖、侵袭及迁移.     

羽扇豆醇增强对沉默ST3GalⅢ基因的MDA-MB-231细胞侵袭转移的抑制作用

目的 探索羽扇豆醇（Lupeol）增强对沉默ST3GalⅢ基因的人乳腺癌MDA-MB-231细胞侵袭转移的抑制作用。方法 体外培养沉默ST3GalⅢ基因的MDA-MB-231细胞。采用细胞黏附实验,Transwell侵袭实验,细胞划痕实验检测羽扇豆醇对ST3GalⅢ沉默的MDA-MB-231细胞侵袭转移能力的作用。Western blotting检测各组细胞转移相关基质金属蛋白酶（MMP）-2、9和磷脂酰肌醇-3激酶/蛋白激酶B/核因子κB（PI3K/Akt/NF-κB）信号通路蛋白的表达情况。结果 ST3GalⅢ基因沉默及低浓度（5 μmol/L）羽扇豆醇对MDA-MB-231细胞的增殖及凋亡无明显影响。羽扇豆醇对ST3GalⅢ沉默的MDA-MB-231细胞黏附、迁移和侵袭有明显的抑制作用,且相关蛋白MMP-2、-9和PI3K/Akt/NF-κB信号通路蛋白表达均下调。结论 羽扇豆醇体外能增强对沉默ST3GalⅢ基因的人乳腺癌MDA-MB-231细胞侵袭和转移的抑制作用,其机制可能与抑制MMP-2、-9的蛋白表达及影响了PI3K/Akt/NF-κB信号通路有关。     

Circ_0001955 promotes non-small cell lung cancer cell proliferation and invasion by regulating MiR-29a-3p/NKIRAS2 axis to activate the nuclear factor-κB pathway

Non-small cell lung cancer (NSCLC) is one of the most common malignant tumors worldwide. Circular RNAs (circRNAs) have been widely reported to play a role in the pathogenesis of various tumors. Nevertheless, the function of circ_0001955 in NSCLC progression has not been explored yet. This study aims to explore the functions of circ_0001955 in NSCLC and investigate its regulatory molecular mechanism. First, we determined that circ_0001955 was upregulated in NSCLC cells. Subsequently, we demonstrated that knockdown of circ_0001955 restrained cell proliferation and invasion. In vivo experiments further proved the suppressive effect of circ_0001955 silence on tumor growth. Mechanism assays revealed that circ_0001955 enhanced nuclear factor-κB (NF-κB) inhibitor interacting Ras-like protein 2 (NKIRAS2) expression by sponging microRNA-29a-3p (miR-29a-3p). Upregulation of NKIRAS2 led to the deceased level of IκBβ but increased levels of nuclear p65, thus activating the NF-κB signaling pathway. In conclusion, Circ_0001955 activates the NF-κB pathway to promote NSCLC cell proliferation and invasion by regulating miR-29a-3p/NKIRAS2 axis.     

Tumor-associated macrophages promote the metastasis of ovarian carcinoma cells by enhancing CXCL16/CXCR6 expression

This study investigated the underlying mechanism by which C-X-C motif chemokine ligand 16 (CXCL16)/C-X-C motif chemokine receptor 6 (CXCR6) signaling is activated by tumor-associated macrophages and assists in regulating the metastasis of ovarian carcinoma. Specimens of ovarian carcinoma tissue and adjacent tissue were collected from 20 ovarian carcinoma patients. Human THP-1 cells were induced to differentiate into macrophages, which were then co-cultured with SKOV3 cells and low concentrations of tumor necrosis factor-α (TNF-α) to simulate the inflammatory microenvironment of ovarian carcinoma. Additionally, small interfering RNA (siRNA) targeting CXCR6 was transfected into SKOV3 cells; after which, the levels of nuclear factor kappa B p65 (NF-κB p65) protein and phosphorylated PI3K and Akt were measured. The migration and invasion abilities of the SKOV3 cells were also tested. The levels of TNF-α, interluekin-6 (IL-6), NF-κB p65, CXCL16, and CXCR6 expression in the ovarian carcinoma tissues were higher than those in the precancerous tissues. CXCR6 expression was positively correlated with TNF-α, IL-6, and CXCL16 expression. Co-culture of SKOV3 cells with macrophages significantly promoted CXCL16, CXCR6, NF-κB, and p65 expression by the SKOV3 cells, increased their levels of phosphorylated PI3K and Akt, and increased the migration and invasion abilities of SKOV3 cells. Silencing of CXCR6 or blocking the PI3K/Akt signal pathway markedly attenuated the expression of NF-κB p65 and phosphorylation of PI3K and Akt, as well as the migration and invasion abilities of SKOV3 cells. These findings demonstrate that macrophages can promote the migration and invasion of ovarian carcinoma cells by affecting the CXCL16/CXCR6 pathway.     

microRNA-204 inhibits cell proliferation in T-cell acute lymphoblastic leukemia by down-regulating SOX4

Background: MicroRNAs (miRNAs) are a group of small non-coding RNAs that play important roles in the pathogenesis of human diseases by negatively regulating gene expression. The aim of this study was to explore the effect of miR-204 on cell proliferation migration and invasion in T-cell acute lymphoblastic leukaemia (T-ALL). Method: miR-204 expression was determined in bone marrow samples from 32 leukemia patients and 32 healthy controls by quantitative real-time PCR (qRT-PCR). The effect of miR-204 on cell proliferation was evaluated by CCK8 assay, cell migration and invasion were evaluated by transwell migration and invasion assays, In addition, the regulation of SOX4 by miR-204 was evaluated by luciferase reporter assay and western blot. Results: our results revealed that miR-204 was low expressed in T-ALL. Cell proliferation assay showed that the cell proliferation ability was inhibited by miR-204 mimics. Moreover, migration and invasion assay suggested that overexpression of miR-204 could significantly suppressed the migration and invasion ability of T-ALL cells. Luciferase reporter assay confirmed that miR-204 directly bound to the 3’ untranslated region of SOX4, and western blot suggested that miR-204 inhibited the expression of SOX4 at the protein levels. Conclusions: Our findings indicated that miR-204 negatively regulates SOX4 and inhibited proliferation, migration and invasion of T-ALL cell lines. Thus, miR-204 might represent a potential therapeutic target for T-ALL intervention.     

miR-595 suppresses cell proliferation and metastasis in hepatocellular carcinoma by inhibiting NF-κB signalling pathway

MicroRNAs (miRNAs) have been proven to be critical regulators of cancer development. To date, many of them are still in urgent need of characterisation, and role of miR-595 in hepatocellular carcinoma (HCC) remains unknown. To better understand the mechanism of miR-595 in HCC development, a series of experiments were carried out to explore the effects of miR-595 on malignant behaviour in HCC. First, we found that miR-595 was downregulated in HCC tissues and cells and tightly associated with poor overall survival in HCC patients. Then, we further demonstrated that miR-595 inhibited cell proliferation, migration and invasion in vitro. Additionally, animal experimental results demonstrated that miR-595 inhibited HCC carcinogenesis in vivo. Moreover, we demonstrated that upregulation of miR-595 expression inhibited the NF-κB signalling pathway in HCC cells. To further uncover the molecular mechanism of miR-595 action on the NF-κB signalling pathway, we identified ABCB1 as a direct target of miR-595 through bioinformatics prediction and supported our results with luciferase assays. Finally, we showed that miR-595 inhibited the NF-κB pathway by suppressing ABCB1 expression in HCC cells. Taken together, our findings uncover a pivotal role for the miR-595/ABCB1/NF-κB axis in HCC development, and this novel axis may be a suitable target for diagnostic or therapeutic interventions in HCC.     

LncRNA DSCAM-AS1通过靶向miR-627-3p调控皮肤鳞状细胞癌增殖、侵袭和迁移

目的 探讨长链非编码RNA(LncRNA)唐氏综合征细胞粘附分子反义1(DSCAM-AS1)靶向miR-627-3p对人皮肤鳞状细胞癌增殖和侵袭能力的影响和分子机制.方法 采用实时荧光定量PCR(RT-qPCR)检测DSCAM-AS1和miR-627-3p在人永生化表皮细胞HaCaT和3种皮肤鳞状细胞癌细胞(SCC13...     

lncRNA SNHG17 靶向 miR-525-5p 对人绒毛膜滋养层细胞增殖、 迁移和侵袭的影响

目的 探讨 lncRNA SNHG17 对人绒毛膜滋养层细胞生长及转移的影响及其可能作用机制。 方法 qRT-PCR 检测正常胎盘组织、 子痫前期胎盘组织中 lncRNA SNHG17 和 miR-525-5p 表达。 体外培养人绒 毛膜滋养层细胞 HTR-8 / SVneo, 分别转染 si-SNHG17、 anti-miR-525-5p 及其阴性对照; 采用平板克隆形成实 验、 划痕实验与 Transwell 实验分别检测细胞增殖、 迁移及侵袭能力; 双荧光素酶报告实验检测 miR-525-5p 与 SNHG17 的靶向关系。 结果 与正常胎盘组织比较, 子痫前期胎盘组织中 lncRNA SNHG17 表达升高, miR-525-5p 表达降低 (P< 0. 05)。 转染 si-SNHG17 后细胞克隆形成数和侵袭细胞数增多, 划痕愈合率升高 (P< 0. 05)。 lncRNA SNHG17 靶向调控 miR-525-5p; 共转染 si-SNHG17 和 anti-miR-525-5p 后细胞克隆形成数 和侵袭细胞数减少, 划痕愈合率降低 (P< 0. 05)。 结论 沉默 lncRNA SNHG17 可通过促进 miR-525-5p 表 达而促进人绒毛膜滋养层细胞增殖、 迁移及侵袭。