The non‐coding RNA OTUB1‐isoform2 promotes ovarian tumour progression and predicts poor prognosis

Ovarian cancer is the leading malignancy of the female reproductive system and is associated with inconspicuous early invasion and metastasis. We have previously reported that the oncogene OTUB1 plays a crucial role in ovarian cancer progression, but the role of its isoform, the non‐coding RNA OTUB1‐isoform2, in ovarian cancer is still elusive. Here, we reported that OTUB1‐isoform2 expression in ovarian cancer tissues was significantly higher than that in the paired paratumorous tissues (P < .01). The patients with high expression of OTUB1‐isoform2 had larger tumours than those with low expression (P < .05). The high expression of OTUB1‐isoform2 was correlated with the involvement of bilateral ovaries (P < .05), lymph node metastasis (P < .05), vascular invasion (P < .05), greater omentum involvement (P < .01), fallopian tube involvement (P < .05), advanced FIGO stages (P < .01) and recurrence (P < .01). Moreover, OTUB1‐isoform2 served as an independent negative prognostic predictor for disease‐free survival (DFS) and disease‐specific survival (DSS). Overexpression of OTUB1‐isoform2 in the ovarian cancer cells stimulated cell proliferation, migration and invasion both in vitro and in vivo. In summary, our study suggested that OTUB1‐isoform2 is a novel prognostic biomarker with independent oncogenic functions for ovarian cancer.     

High Level of COP1 Expression is Associated with Poor Prognosis in Primary Gastric Cancer

COP1 (constitutive photomorphogenic 1, also known as RFWD2) is a p53-targeting E3 ubiquitin ligase containing RING-finger, coiled-coil, and WD40-repeat domains. Recent studies have identified that COP1 is overexpressed in several cancer types and that increased COP1 expression promotes cell proliferation, cell transformation, and tumor progression. In the present study, we investigated the expression and prognostic value of COP1 in primary gastric cancer. To investigate the role of the COP1 gene in primary gastric cancer pathogenesis, real-time quantitative PCR and western blotting were performed to examine COP1 expression in paired cancerous and matched adjacent noncancerous gastric tissues. The results revealed high COP1 mRNA (P=0.030) and protein (P=0.008) expression in most tumor-bearing tissues compared with the matched adjacent non-tumor tissues. The correlated protein expression analysis revealed a negative correlation between COP1 and p53 in gastric cancer samples (P=0.005, r=-0.572). Immunohistochemical staining of gastric cancer tissues from the same patient showed a high COP1 expression and a low p53 expression. To further investigate the clinicopathological and prognostic roles of COP1 expression, we performed immunohistochemical analysis of 401 paraffin-embedded gastric cancer tissue blocks. The data revealed that high COP1 expression was significantly correlated with T stage (P=0.030), M stage (P=0.048) and TNM stage (P=0.022). Consistent with these results, we found that high expression of COP1 was significantly correlated with poor survival in gastric cancer patients (P<0.001). Cox regression analyses showed that COP1 expression was an independent predictor of overall survival (P<0.001). Our data suggest that COP1 could play an important role in gastric cancer and might serve as a valuable prognostic marker and potential target for gene therapy in the treatment of gastric cancer.     

过表达胃泌素促进胃癌细胞的增殖、迁移和侵袭

胃癌患者转移淋巴结中胃泌素基因的表达量是原发胃癌组织的42倍,推测胃泌素可能与胃癌转移密切相关. 本文通过构建含胃泌素基因的真核表达载体,成功获得过表达胃泌素的稳转胃癌细胞株AGS和SGC-7901, 并用MTT、细胞伤愈实验、Transwell 小室实验及ELISA检测过表达胃泌素对细胞迁移、侵袭及转移相关蛋白基质金属蛋白酶2（MMP-2）分泌能力的影响. 结果显示,过表达胃泌素稳转细胞的相对增殖率、 迁移入细胞致伤区的相对距离比对照组高,迁移和侵袭到Transwell下室面的细胞, 以及培养液中每mg蛋白质的MMP-2浓度也高于对照组的细胞. 结果提示,胃泌素通过促进胃癌细胞分泌MMP-2来增强细胞的迁移和侵袭能力. 该研究对揭示胃癌转移的分子机制具有重要意义.     

酒石酸锑钾对人胃癌细胞HS-746T增殖和侵袭的影响

目的 研究酒石酸锑钾对人胃癌细胞HS-746T的作用.方法 采用MTT和Transwell方法分别观察VEGF和MMP-9蛋白分泌表达量.结果 酒石酸锑钾对HS-746T细胞的增殖和侵袭具有很强的抑制作用,抑制率随酒石酸锑钾浓度增大而增强,对HS-746T细胞增殖半数抑制浓度（IC50）为82.27 μmol/L;同时,酒石酸锑钾可明显降低人胃癌细胞HS-746T上清中VEGF和MMP-9的分泌表达.结论 酒石酸锑钾能抑制人胃癌细胞HS-746T的增殖和侵袭.     

IscU2对非小细胞肺癌增殖、迁移、侵袭能力的影响及其作用机制的研究

该文通过shRNA干扰技术敲低IscU2干扰细胞IscU2的表达,研究了干扰IscU2对非小细胞肺癌(NSCLC)细胞NCI-H520增殖、迁移及侵袭能力的影响。构建了稳定低表达IscU2的非小细胞肺癌细胞系NCI-H520;采用CCK-8和平板克隆实验检测细胞的增殖能力;流式细胞仪检测细胞周期、凋亡、ROS、线粒体膜电位变化情况;Transwell实验检测细胞迁移及侵袭能力;Western blot检测相关蛋白的表达。结果表明,干扰IscU2后,非小细胞肺癌细胞的增殖及克隆形成能力降低;细胞周期停滞在G1/G0期,同时伴随有p-AKT和Cyclin D1蛋白含量的下降;细胞晚期凋亡率明显增加,凋亡蛋白Cleaved-caspase3和Cleaved-PARP表达上调;细胞迁移和侵袭能力降低,上皮标志物E-Cadherin表达上调,间质标志物N-Cadherin和Snail表达下调;细胞ROS积累和线粒体膜电位下降。该研究结果表明,干扰IscU2显著抑制非小细胞肺癌的增殖、迁移、侵袭能力和上皮–间质转化,这为非小细胞肺癌的诊断和治疗提供了新的潜在靶点和视角。     

miR-125b靶向MCL1抑制胃癌 MGC-803细胞增殖

探讨mi R-125b对胃癌MGC-803细胞增殖的影响及机制,为阐明胃癌发病的分子机制提供实验依据.采用q RT-PCR和原位杂交,检测mi R-125b在正常胃黏膜(NGM)和胃癌(GAC)组织中的表达.将mi R-125b导入胃癌MGC-803细胞,观察mi R-125b高表达对MGC-803细胞增殖的影响.利用Targetscan 6.2软件及荧光素酶报告基因检测,分析mi R-125b对MCL1基因的靶向性作用.构建MCL1干扰载体,观察干扰MCL1基因表达对MGC-803细胞增殖的影响.结果发现,mi R-125b在胃癌组织中低表达,其表达与胃癌的分化程度及患者预后呈正相关,与TNM分期、淋巴结转移呈负相关(P0.01).mi R-125b高表达后MGC-803细胞的增殖降低、凋亡率增加、裂解caspase-3与裂解PARP表达增加(P0.01);mi R-125b与MCL1基因的3′UTR(2 613~2 620)结合,抑制MCL1的m RNA及蛋白质表达(P0.01);沉默MCL1基因表达后MGC-803细胞的增殖降低、凋亡率增加、裂解caspase-3与裂解PARP表达增加(P0.01).从而得出结论,mi R-125b在胃癌组织中低表达,其表达与胃癌组织分化程度、TNM分期、淋巴结转移及患者预后密切相关;mi R-125b靶向抑制MCL1基因表达,活化caspase-3信号通路,抑制MGC-803细胞增殖.     

骆驼蓬碱通过LOXL1-AS1影响卵巢癌细胞CAOV3增殖、凋亡、迁移侵袭

该研究探讨了骆驼蓬碱对卵巢癌细胞CAOV3增殖、凋亡、迁移侵袭的影响及分子机制.卵巢癌细胞CAOV3分为对照组,骆驼蓬碱低、中、高剂量组,si-NC组,si-LOXL1-AS1组,骆驼蓬碱高剂量+pcDNA组,骆驼蓬碱高剂量+pcDNA-LOXL 1-AS 1组.用细胞计数试剂盒-8(CCK-8)检测细胞存活率;平板克...     

胃癌侵袭转移相关基因研究进展

胃癌死亡率居高不下的原因主要在于广泛的侵袭和转移。恶性肿瘤的侵袭和转移是一个受多因素调控、多种基因参与的多步骤、多阶段、连续复杂的主动过程,很多机制现在还不清楚。但是目前很多研究表明肿瘤间质中的血管生成和细胞外基质的降解是恶性肿瘤侵袭和转移的重要步骤。随着分子生物技术的飞速发展,对这两个步骤基因水平上的研究已成为热点,并发现了例如血管内皮生长因子、基质金属蛋白酶多种基因通过不同方式调控肿瘤血管生成和细胞外基质降解,从而导致胃癌的侵袭和转移。     

LncRNA AC009686.2促进乳腺癌细胞增殖和侵袭

长非编码RNAs(long non-coding RNAs,LncRNAs)作为一类基因表达的调控因子,在多种肿瘤的发生发展中发挥关键作用,然而LncRNAs在乳腺癌中的作用及相关机制尚未完全阐明.为了寻找在乳腺癌发生发展中起关键作用的LncRNAs,本研究通过分析TCGA数据库发现,LncRNA AC009686.2...     

miR-490-3p通过靶向调控TGFBR1抑制非小细胞肺癌细胞的增殖和侵袭

目的:以非小细胞肺癌A549细胞为模型,探讨miR-490-3p在肺癌发生发展过程中的作用及其调控机制。方法:通过miRBase数据库获得miR-490-3p序列,设计miR-490-3pmimics并转染A549细胞,CCK8、细胞划痕及Transwell实验分别检测miR-490-3p过表达对A549细胞增殖、迁移和侵袭能力的影响;使用miRwalk在线工具预测miR-490-3p可能的调控基因,通过实时荧光定量PCR及Western印迹对候选调控基因进行筛选,最后通过双萤光素酶报告基因实验验证miR-490-3p与调控基因之间的靶向关系。结果:过表达miR-490-3p可显著抑制A549细胞的增殖、侵袭和迁移能力;在预测的miR-490-3p候选靶基因中,选择与细胞增殖、迁移等表型相关的RASAL2、TGFBR1、PAPPA、HMGA2、TGFA靶基因进行实时荧光定量PCR及Western印迹筛选,结果仅TGFBR1基因在mRNA和蛋白水平的表达与miR-490-3p水平呈负相关,且双萤光素酶报告实验证实miR-490-3p可直接与TGFBR1的3'-UTR结合并抑制其表达。结论:miR-490-3p通过靶向调控TGFBR1的表达抑制非小细胞肺癌A549细胞的增殖和侵袭。     

Scinderin基因沉默对人胃癌细胞SGC-7901增殖、转移的影响

Scinderin是一种依赖Ca2＋的肌动蛋白丝（F-actin）切割蛋白,在细胞分泌过程中发挥着重要作用。目前,针对scinderin在人类疾病尤其是肿瘤中的生物学功能研究报道的并不多。该实验通过构建scinderin—shRNA慢病毒载体并感染人胃癌细胞株SGC-7901,于荧光显微镜下观测感染效率,利用RT-qPCR和Western blot实验证实scinderin的沉默效果。运用实时细胞分析4K（RTCA）检测细胞的增殖能力,流式细胞术检测细胞周期变化,Transwell小室检测细胞的迁移能力。结果显示,将构建好的病毒载体成功转入了胃癌细胞SGC-7901。感染scinderin—shRNA病毒载体后,scinderin的mRNA和蛋白质表达水平均受到不同程度的抑制（P〈0．01）,细胞的增殖和迁移能力均显著降低（P〈0．05）,细胞周期阻滞在G2／M期。该研究表明,胃癌细胞SGC-7901中scinderin低表达能有效抑制细胞的增殖和转移能力,这也为scinderin在胃癌演化过程中的机制研究奠定了实验基础。     

Bmi1 Drives Stem-Like Properties and is Associated with Migration,Invasion, and Poor Prognosis in Tongue Squamous Cell Carcinoma

Bmi1 (B-cell-specific Moloney murine leukemia virus insertion site 1) had been found to involve in self -renewal of stem cells and tumorigenesis in various malignancies. The purpose of this study is to evaluate the role of Bmi1 in the development of tongue squamous cell carcinoma (TSCC) and its functional effect on the migration and invasion of TSCC. Initially, immunohistochemistry revealed that Bmi1 overexpression was a common event in premalignant dysplasia, primary TSCC, and lymph node metastases and was associated with a poor prognosis. A significant correlation between Bmi1 and SOD2 (manganese superoxide dismutase) expression was observed. Side population (SP) cells were used as cancer stem-like cells and further assessed by sphere and colony formation assays, and the expression of stem cell markers. TSCC cells with higher migration and invasion ability (UM1 cell lines) showed a higher proportion of SP cells and Bmi1 expression than TSCC cells with lower migration and invasion ability (UM2 cell lines). Knockdown of Bmi1 in UM1 or SP cells inhibited migration and invasion and decreased the sphere and colony formation, and the expression of stem cell markers and SOD2. Direct binding of C-myc to the Bmi1 promoter was demonstrated by chromatin immunoprecipitation and luciferase assays. Moreover, C-myc knockdown in SP cells inhibited their migration and invasion and decreased the expression of Bmi1 and SOD2. Our results indicate that the deregulation of Bmi1 expression is a frequent event during the progression of TSCC and may have a prognostic value for patients with this disease. The Bmi1-mediated migration and invasion of TSCC is related to cancer stem-like cells and involves the C-myc-Bmi1-SOD2 pathway.     

CCNG2在胃癌中的表达及其临床意义

为检测CCNG2在胃癌中的表达改变,并探讨其变化与胃癌临床参数和预后之间的关系,构建了225例胃癌组织芯片。用免疫组化检测了CCNG2的表达,分析其表达与临床病理参数及胃癌患者预后的关系。免疫组化结果显示,CCNG2在癌旁粘膜中均有表达,而胃癌中的表达率为51.1%(115/225)。CCNG2的表达与肿瘤浸润深度、淋巴结转移、疾病分期以及组织学分化呈负相关。生存分析表明,CCNG2可以是判断胃癌患者预后的独立指标。由此得出结论,CCNG2在胃癌的发生发展过程中起着重要作用,可作为判断胃癌患者预后的指标。     

RNAi干扰Ska2对H1299细胞增殖、迁移及侵袭能力的影响

Ska2（spindle and kinetochore associated complex subunit2）,又称FAM33A（family with sequence similarity33,member A）,是新近发现的一个与细胞周期调控和肿瘤发生发展紧密相关的基瓯且与该团队前期发现的新基NPRR11（proline rich 11）共享一个双向启动子。但是,Ska2在肺癌中的具体作用和分子机制仍不清楚。该研究选用肺癌细胞系H1299,采用RNAi技术构建Ska2基因沉默的稳定细胞株,并进行了细胞表型和潜在分子机制分析。RT-PCR和Western blot结果表明,Ska2在mRNA和蛋白质水平上的表达均被有效抑制。细胞增殖、细胞迁移和侵袭实验结果表明,与对照细胞相比,Ska2基因沉默稳定细胞株的细胞增殖能力、细胞迁移和侵袭能力均显著降低。此外,Ska2基因被沉默后,CCNA1基因的表达显著下调。该研究的结果提示,Ska2与其对侧基因PRR11的功能高度相关,可能与PRR11共同参与肺癌细胞增殖、迁移和侵袭行为的调节。     

长链非编码RNA LINC01006对前列腺癌细胞增殖和侵袭的影响

摘要 目的：探究长链非编码RNA LINC01006对前列腺癌（prostate cancer, PCa）细胞增殖和侵袭能力的影响。方法：体外培养人前列腺正常上皮细胞系RWPE-1,人PCa细胞系LNCaP、22Rv1、PC3、C4-2b,应用实时定量PCR（qRT-PCR）技术检测上述细胞LINC01006的表达;分别通过转染小干扰RNA（siRNA）或过表达LINC01006的慢病毒载体,在LNCaP和PC3细胞中敲减LINC01006或稳定过表达LINC01006;应用CCK8、克隆形成实验检测LINC01006对PCa细胞增殖能力的影响;应用Transwell侵袭实验检测LINC01006对PCa细胞侵袭能力的影响;通过网站预测LINC01006的转录调控因子及其结合位点。结果：相较于正常前列腺上皮细胞系RWPE-1,PCa细胞系LNCaP、22Rv1、C4-2b和PC3中LINC01006表达明显升高（P<0.05）。敲减LINC01006后的PCa细胞系LNCaP和PC3的增殖和侵袭能力被显著抑制（P<0.05）,过表达LINC1006则明显促进PCa细胞系LNCaP和PC3的增殖、侵袭能力（P<0.05）。通过PROMO网站预测可见AR是LINC01006的潜在转录调控因子,通过Cistrome DB数据库发现LINC01006上游启动子区域存在AR富集;敲减、抑制AR后LNCaP细胞中LINC01006表达明显升高（P<0.05）。结论：LINC01006在PCa细胞系中呈高表达,促进PCa细胞的增殖和侵袭,其受到AR负向调控,可能在PCa发生发展和去势抵抗形成过程中发挥作用。     

TGM2对胃癌细胞BGC-823增殖、迁移和侵袭能力的影响

目的:转谷氨酰胺酶-2(transglutaminase-2,TGM2)是一种多功能的蛋白,在乳腺癌,胰腺癌,黑色素瘤和前列腺癌等肿瘤中高表达,而且和肿瘤的增殖和转移密切相关。本研究旨在探索TGM2对胃癌细胞BGC-823的增殖、迁移和侵袭能力的影响。方法:q RT-PCR、蛋白质印迹及免疫组化检测TGM2在胃癌细胞及组织中的表达情况;慢病毒转染胃癌细胞BGC-823以干扰TGM2的表达,荧光显微镜下观察转染效率,蛋白质印迹检测TGM2表达干扰效果;CCK-8法检测TGM2下调对BGC-823增殖能力的影响;Transwell法检测TGM2下调对BGC-823的迁移和侵袭能力影响;蛋白质印迹检测TGM2下调对转移和凋亡相关蛋白表达的影响。结果:TGM2在胃癌细胞和组织中均高表达,P0.01(q RT-PCR),P0.001(免疫组化);转染慢病毒后,荧光显微镜下观察结果显示转染效率超过90%,蛋白质印迹结果显示实验组sh TGM2-1的干扰效果最好,TGM2明显下调,差异具有统计学意义,P0.0001;CCK-8结果表明TGM2下调后,从细胞铺板第2d开始,实验组(sh TGM2-1)的细胞增殖倍数明显下降,P0.05(2d),P0.01(3d),P0.001(4d),P0.01(5d);Transwell结果显示,TGM2下调后,BGC-823的迁移和侵袭能力明显减弱,P0.001(迁移),P0.01(侵袭);蛋白质印迹结果显示,TGM2下调后,NF-κB和Bcl-2表达下调,而Bax表达上调,P0.05(NF-κB)、P0.001(Bcl-2)和P0.0001(Bax)。结论:TGM2下调能抑制胃癌细胞BGC-823的增殖、迁移和侵袭能力,并和NF-κB、Bcl-2的下调以及和Bax的表达水平上调有关,为胃癌的临床治疗提供了新靶点。     

Upregulation of SQLE Contributes to Poor Survival in Head and Neck Squamous Cell Carcinoma

Recently, increasing attention has been paid to the role of Squalene epoxidase (SQLE) in several types of cancers. However, its functional role in tumor progression of head and neck squamous cell carcinoma (HNSCC) is still unclear. We performed bioinformatic analyses and relative experiments to assess the potential mechanism of SQLE-mediated HNSCC malignancy. And the results showed that SQLE was significantly upregulated in tumor samples compared with peritumor samples. Mechanistically, miR-584-5p downregulation may lead to the upregulation of SQLE in HNSCC. Moreover, high SQLE expression in HNSCC was associated with TNM stage, distant metastasis, and poor survival, indicating that SQLE be involved in the progression of HNSCC. Furtherly, SQLE boosted proliferation, migration, invasion of HNSCC cells in vitro and in vivo. Bioinformatic studies showed that PI3K/Akt signaling participated in HNSCC progression mediated by SQLE overexpression, which is confirmed by in vitro and in vivo analysis. Particularly, treatment with terbinafine, an inhibitor of SQLE widely used in the treatment of fungal infections, showed a therapeutic influence on HNSCC. Our findings demonstrate that SQLE plays a vital role in HNSCC progression, providing research evidence for SQLE as a prospective HNSCC therapeutic target and for terbinafine as a candidate drug of HNSCC treatment in the future     

BRCA1相关蛋白1对肾癌增殖和侵袭的实验研究

目的:研究BRCA1相关蛋白(BRCA1-associated protein-1,BAP1)对肾癌细胞增殖和侵袭的影响。方法:通过含有不同BAP1和HAT1载体的慢病毒感染后用嘌呤霉素筛选的方法在肾癌细胞系中构建BAP1稳定低表达、HAT1稳定高表达、HAT1稳定低表达以及BAP1低表达且HAT1低表达的慢病毒细胞稳转株。通过WB和PCR验证BAP1在肾癌细胞系中对于HAT1的调控。使用CCK-8细胞增殖和TRANSWELL侵袭实验检测对于肾癌细胞增殖和侵袭能力的影响。利用免疫组化和临床回访数据分析其临床意义。结果:肾癌细胞系中BAP1表达降低后HAT1表达升高。BAP1低表达部分通过了HAT1表达升高促进肾癌的增殖和侵袭能力。在肾癌组织中BAP1的表达与HAT1表达具有相关性(P0.05)。结论:BAP1敲低的肾癌细胞中HAT1特异性的高表达可能是导致肾癌细胞增殖和侵袭能力增强的原因。BAP1与HAT1在肾癌组织中的表达具有显著相关性。     

TFCP2L1在子宫内膜癌细胞增殖及侵袭中的作用

摘要 目的：研究人子宫内膜癌中TFCP2L1的表达情况以及分析TFCP2L1对子宫内膜癌细胞增殖及迁移能力的影响。方法：（1）通过TCGA 及GTEx数据库分析子宫内膜癌中TFCP2L1的表达水平及患者生存期。采用Western blot验证正常子宫内膜上皮细胞与多种子宫内膜癌细胞系中TFCP2L1的表达情况。（2）使用CRISPR-Cas9技术敲除Ishikawa细胞系的TFCP2L1,并用流式分选技术筛选单个细胞进行培养,形成单克隆细胞系,以此来研究TFCP2L1对子宫内膜癌的细胞周期和细胞增殖的影响。通过 Western blot 及细胞免疫荧光检测细胞周期相关蛋白的表达,检测细胞增殖情况,采用平板克隆实验及CCK8实验。（3）通过Transwell小室及划痕实验对侵袭和转移能力进行检测。结果：TCGA 及GTEx数据库分析发现TFCP2L1在子宫内膜癌中高表达且与肿瘤患者预后不良相关。敲除TFCP2L1后,Ki67、Cyclin D1 和 Cyclin D2的蛋白水平显著下调,CCK8及平板克隆实验结果表明,敲除TFCP2L1能够显著降低子宫内膜癌细胞的增殖能力。划痕实验及Transwell侵袭实验结果表明敲除TFCP2L1的子宫内膜癌细胞侵袭迁移能力均减弱。结论：本研究证明了TFCP21L1是子宫内膜癌的促癌因子。TFCP2L1的高表达可能与子宫内膜癌预后不良相关。敲除TFCP2L1可以抑制子宫内膜癌的侵袭和转移。     

miR-143-3p通过靶向TAK1抑制肺癌增殖和侵袭

目的:分析miR-143-3p在肺癌细胞中的表达情况以及对肺癌进展的作用。方法:通过starBase数据库和肺癌病例组织检测分析miR-143-3p在肺癌组织和正常对照组织中的表达差异;分析miR-143-3p在肺癌细胞HCC27、H1975、A549和肺上皮细胞BEAS-2B中的mRNA水平差异;采用CCK-8法检测miR-143-3p对肺癌细胞增殖活性的影响;采用Transwell实验检测miR-143-3p对肺癌细胞迁移和侵袭的影响;通过qRT-PCR检测miR-143-3p对整合素α6(ITGA6)、锚蛋白重复及PH结构域3(ASAP3)、黑色素瘤相关抗原A9(MAGE-A9)和转化生长因子β激活激酶1(TAK1)表达的影响;通过Western印迹检测miR-143-3p对TAK1蛋白表达的影响。结果:starBase分析和肺癌病例组织检测结果显示miR-143-3p在肺癌组织中低表达,同样地,miR-143-3p在肺癌细胞中的表达也显著低于正常肺上皮细胞;过表达miR-143-3p抑制了肺癌细胞的增殖活性、迁移和侵袭能力;过表达miR-143-3p显著抑制TAK1的表达。结论:miR-143-3p在肺癌中通过靶向TAK1抑制肺癌的增殖和侵袭,miR-143-3p在肺癌进展中详细的分子作用机制和信号通路仍须进一步探讨。