口腔鱗狀細(xì)胞癌中MALAT-1與CCR7及其相關(guān)基因相互作用的分子通路
[Abstract]:Oral squamous cell carcinoma (OSCC) is the most common type of oral malignancies, and is prone to early lymph node metastasis; the incidence is still growing every year. This paper focuses on the molecular pathway of lymph node metastasis in oral squamous cell carcinoma, the cell signaling pathway and the blockade of the key links, trying to find a new target for the diagnosis and treatment of oral squamous cell carcinoma. Carcinogenesis and metastasis is a complex process involving many factors, genes and links, among which there are complex gene regulatory factors. In recent years, studies have found that long non-coding RNA (lnc RNAs) plays an important role in cell development and metabolism, as well as in the occurrence and development of tumors. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT-1) was the first to be found to be associated with tumor metastasis. Synthesized under the action of II, the expressed products are localized in nuclear speckles, and the serine/arginine rich protein family (SR protein, SR protein family) involved in the processing of M RNA precursors is also localized in nuclear speckles. Based on the co-localization relationship between the two proteins, a series of studies have found that MALAT-1 and SR protein phosphorylation. The localization of MALAT-1 in nuclear speckles is the structural basis for regulating the expression, localization and activation of SR protein family members. Studies have confirmed that MALAT-1 is closely related to microRNAs-320s. MALAT-1 can regulate the expression of downstream hsa-microRNAs-320a (a member of the hsa-microRNAs-320s family). Y-box binding protein 1 (YB-1) is a coding protein. YB-1 is a multifunctional cold shock protein that binds nucleic acids and is considered to be a tumor protein involved in many aspects of the proliferation and apoptosis of tumor cells. The data show that one of the target genes of chemokine receptor CCR7 may be hsa-microRNA-320a, and there is no empirical literature to support this aspect.Tumor cell migration has tissue-specific targeting.The molecular regulation of migration to specific tissues is similar to the infiltration and migration of immune cells in inflammatory reaction, and chemokines and chemokine receptors in tumors. Chemokines and chemokine receptors have been supported by many literatures. Chemokines and chemokine receptors have been shown to regulate lymph node metastasis of tumor cells, and chemokines like chemokines regulate immunity during inflammation. In summary, the following hypothesis is proposed: MALAT-1 regulates chemokine receptor m RNA precursor microRNA-320s processing by activating SR protein or YB-1 protein, affecting chemokine receptor CCR7. The research is divided into three parts: 1. Real-time fluorescence quantitative detection of oral squamous cell carcinoma tissue samples, qualitative observation of MALAT-1, microRNA-320s, SRSF1, YB-1, CCR7 and other molecular expression; 2, human tongue cancer cell lines SCC-9, SCC-25, at the cellular level, through immunization. Co-precipitation, Western blot assay was used to detect the correlation between RNA (MALAT-1, microRNAs-320s) and SRSF1 protein or YB-1; 3. MiNA inhibitor silenced microRNAs-320s was transfected by gene regulation technology, then co-precipitated by immunoblotting and real-time fluorescence quantitative detection of chemokine receptor CCR7 expression, and to analyze the possible correlation. The innovation of this study is that the interaction between long-stranded non-coding RNA MALAT-1 and chemokine receptor CCR7 was found in oral squamous cell carcinoma cell lines for the first time. The possible molecular pathways of MALAT-1 affecting CCR7 expression have not been reported in literature. [Methods] Part 1: Qualitative observation of the expression of MALAT-1, microRNA320s, SRSF1, YB-1, CCR7 in oral squamous cell carcinoma and adjacent tissues by real-time fluorescence quantitative detection. Six groups of oral squamous cell carcinoma (OSCC) tissues and adjacent tissues (T3/T4 stage) were harvested and placed in cryopreserved tubes. The specimens were divided into two groups with or without lymph node metastasis. 2. The expressions of MALAT1, SRSF1, microRNA-320s, YB-1 and CCR7 in OSCC and adjacent tissues were detected by real-time quantitative PCR. Difference.2.1 Total RNA.2.2 RNA was retrieved by TRIZOL and the expression of target molecule was detected by C DNA.2.3 Real-time Q PCR. Part 2: Correlation between the expression of related RNA (MALAT-1, microRNA-320s) and SRSF1 protein or YB-1 in tongue cancer cell lines 1. Human tongue squamous cell carcinoma cell lines (SCC9, SCC25) were subcultured in DMEM high glucose complete medium containing 10% fetal bovine serum at 37 C, 5% CO_2, 95% saturated humidity and passed to the sixth generation cells for use in this experiment. Protein-binding immunoprecipitation 2.1 experimental group (1) control group: adding negative control rabbit anti-RIP kit; (2) experimental group 1: adding anti-SF2 antibody RIP complex; (3) experimental group 2: adding anti-YB-1 antibody RIP complex; 2.2 experimental method using Sigma company's immunoprecipitation kit for RNA-binding protein immunoprecipitation 3. Immunoblotting assay was used to detect the expression of cell lysate products and RIP complex. Immunoblotting assay was used to detect the color bands of the target molecule whose lysis efficiency was the target molecule. Immunocoprecipitation assay was used to detect the complex expression. 4. Real-time fluorescence quantitative analysis. The concentration and purity of RNA-antibody-protein complex in PCR 4.1 immunoprecipitation assay were tested. Part 3: Gene regulation technique silenced microRNAs-320d. CCR7 expression was observed according to the second part of the experiment: hsa-microRNAs-320d (hsa-microRNAs-320s family members, screened a, b, d, e) and MALAT-1 has a correlation. 1. Cell microRNAs-320d inhibitor transfection 1.1 grouping (1) control group: MiRNA Inhibitor Negative Control #1 (control group: MiRNA Inhibitor Negative Control #1) 4464058; (2) Experimental group: MiRNA-320d inhibitor (4464066); 1. Real-time fluorescence quantitative PCR 3.1 transfected RIP complex purity, concentration detection; 3.2 RNA reverse transcription into C DNA; 3.3 Real-time Q PCR.4. Statistical analysis: Graphpad prism 7.0 on the obtained real-time fluorescence quantitative data Statistical analysis showed that there was significant difference between the two groups by paired t test and P < 0.05 as the standard. [Results] Part 1: Qualitative observation of MALAT-1, microRNA-320s, SRSF1, YB-1, CCR7 in oral squamous cell carcinoma and adjacent tissues by real-time fluorescence quantitative detection. The expression of microRNA-320d in the lymph node metastasis group was lower than that in the non-lymph node metastasis group. (P < 0.05) Part 2: Correlation between the expression of related RNA (MALAT-1, microNA-320s) and SRSF1 protein or YB-1 in tongue cancer cell lines. Study 1. MALAT-1 can bind to SRSF1. (See WB banding and real-time fluorescence quantitative analysis) 2. MiNA-320d (a member of the family of microNA-320s) can bind to SRSF1 (see WB banding and real-time fluorescence quantitative analysis) 3. MALAT-1, microNA-320d and YB-1 do not bind to each other. (See WB banding) The results showed that MALAT-1, microNA-320d through S-1. RSF1 was combined with each other. Part 3: Gene regulation technique silenced microRNAs-320d, observed CCR7 expression transfected silenced microRNAs-320d inhibited gene expression, and observed CCR7 expression increased, indicating that there was interaction between microRNAs-320d and CCR7. [Conclusion] 1. Qualitative observation of lymph node metastasis by real-time fluorescence quantitative detection. Histological LNC RNA MALAT-1, SRSF1, CCR7 were highly expressed in different degrees compared with the non-lymph node metastasis group. 2. Through immunoprecipitation, Western blotting test showed that the related RNA (MALAT-1, microRNA320d) could bind to each other through SRSF1 protein. 3. Real-time fluorescence assay was used to quantify the contents of MALAT-1, microRNA320s, MALAT-1 and microRNA320d in RNA-protein complexes. Through SRSF1 binding to each other; 4. Gene regulation technology silencing of microRNAs-320s, immunoprecipitation, Western blot and real-time fluorescence quantitative assay found that the expression of chemokine receptor CCR7 increased, we can infer that there is interaction between MALAT-1, SRSF1, microRNAs-320d, CCR7, reveal the effect of MALAT-1 on chemokine receptor CCR7 from the molecular level. MALAT-1 as a molecular targeted lymph node metastasis of oral squamous cell carcinoma related to the basis and application of further research to provide a theoretical basis.
【學(xué)位授予單位】:第二軍醫(yī)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:R739.8
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 李羽安,郭傳tx;口腔鱗狀細(xì)胞癌患者患源性診斷延誤相關(guān)因素的回顧性研究[J];現(xiàn)代口腔醫(yī)學(xué)雜志;2003年04期
2 王新勇;口腔鱗狀細(xì)胞癌18例病理分析[J];山東醫(yī)藥;2004年26期
3 王雷;高文信;馬寧;;血管內(nèi)皮生長(zhǎng)因子在口腔鱗狀細(xì)胞癌中的表達(dá)[J];實(shí)用口腔醫(yī)學(xué)雜志;2008年03期
4 吳修胤;佟冬冬;張風(fēng)河;;微小RNA與口腔鱗狀細(xì)胞癌[J];生物醫(yī)學(xué)工程研究;2011年01期
5 馬開(kāi)宇;馬開(kāi)陽(yáng);黎明;代曉明;李逸松;;基于形態(tài)學(xué)特征提取的人工神經(jīng)網(wǎng)絡(luò)在口腔鱗狀細(xì)胞癌診斷中的應(yīng)用[J];昆明醫(yī)學(xué)院學(xué)報(bào);2012年01期
6 ;刍;劉洋;周晶琳;;口腔鱗狀細(xì)胞癌機(jī)制研究[J];微量元素與健康研究;2013年01期
7 楊成;新生血管在口腔鱗狀細(xì)胞癌擴(kuò)散中的作用[J];國(guó)外醫(yī)學(xué).口腔醫(yī)學(xué)分冊(cè);1996年06期
8 簡(jiǎn)衛(wèi)國(guó),李凌,武培敬;表皮生長(zhǎng)因子受體在口腔鱗狀細(xì)胞癌中的表達(dá)及臨床意義[J];臨床口腔醫(yī)學(xué)雜志;1998年01期
9 趙世祿;程福強(qiáng);史繁華;;口腔鱗狀細(xì)胞癌臨床流行病學(xué)研究現(xiàn)狀[J];中國(guó)保健營(yíng)養(yǎng);2013年07期
10 葉平,蔣澤先,張永福;口腔鱗狀細(xì)胞癌不同區(qū)域P~(53)和P~(21)表達(dá)差異[J];實(shí)用臨床醫(yī)學(xué);2001年04期
相關(guān)會(huì)議論文 前10條
1 高巍;郭傳tx;;口腔鱗狀細(xì)胞癌延誤診斷相關(guān)因素的前瞻性研究[A];第四屆中國(guó)腫瘤學(xué)術(shù)大會(huì)暨第五屆海峽兩岸腫瘤學(xué)術(shù)會(huì)議論文集[C];2006年
2 吳衍昌;李芳;;熱休克蛋白60在口腔鱗狀細(xì)胞癌中的表達(dá)及臨床意義[A];第八次全國(guó)口腔頜面—頭頸腫瘤會(huì)議論文匯編[C];2009年
3 張強(qiáng);張永福;卓夏陽(yáng);賈云香;;口腔鱗狀細(xì)胞癌不同區(qū)域病理分級(jí)及增殖活性的差異[A];第一屆全國(guó)口腔頜面部腫瘤學(xué)術(shù)會(huì)議論文匯編[C];2001年
4 僗承翰;林美灄;戴鑓;_5正琪;;發(fā)展奈米金結(jié)合傳統(tǒng)化療藥物以抑制口腔鱗狀細(xì)胞癌之協(xié)同療法(英文)[A];2013第七屆海峽兩岸毒理學(xué)研討會(huì)大會(huì)手冊(cè)[C];2013年
5 吳洪儒;劉曉勇;王鳳光;汪育苗;;口腔鱗狀細(xì)胞癌淋巴結(jié)轉(zhuǎn)移危險(xiǎn)因素的Logistic回歸分析[A];中華口腔醫(yī)學(xué)會(huì)第七屆全國(guó)口腔病理學(xué)術(shù)會(huì)議論文摘要匯編[C];2006年
6 劉曉勇;吳洪儒;汪育苗;王鳳光;;口腔鱗狀細(xì)胞癌淋巴結(jié)轉(zhuǎn)移相關(guān)因素的單因素分析[A];中華口腔醫(yī)學(xué)會(huì)第七屆全國(guó)口腔病理學(xué)術(shù)會(huì)議論文摘要匯編[C];2006年
7 李明賀;張茹慧;吳國(guó)民;;CD44 podoplanin在口腔鱗狀細(xì)胞癌中的表達(dá)及其意義[A];第八次全國(guó)口腔頜面—頭頸腫瘤會(huì)議論文匯編[C];2009年
8 張曄;郭傳tx;俞光巖;;口腔鱗狀細(xì)胞癌脂肪酸代謝的初步研究[A];第一屆全國(guó)口腔頜面部腫瘤學(xué)術(shù)會(huì)議論文匯編[C];2001年
9 郭傳tx;李羽安;高巖;;口腔鱗狀細(xì)胞癌頸淋巴轉(zhuǎn)移特征再探討[A];海峽兩岸2008口腔癌診治與修復(fù)重建新進(jìn)展研討會(huì)論文集[C];2008年
10 張偉偉;熊學(xué)鵬;何三綱;張文峰;;≤40歲年輕女性口腔鱗狀細(xì)胞癌的臨床特點(diǎn)分析[A];第八次全國(guó)口腔頜面—頭頸腫瘤會(huì)議論文匯編[C];2009年
相關(guān)重要報(bào)紙文章 前1條
1 衣曉峰 喬蕤琳;哈醫(yī)大二院揭示口腔鱗狀細(xì)胞癌發(fā)生機(jī)理[N];中國(guó)醫(yī)藥報(bào);2007年
相關(guān)博士學(xué)位論文 前10條
1 賴(lài)金火;Id1和NF-κB亞單位p65在口腔鱗狀細(xì)胞癌發(fā)病機(jī)制中的協(xié)同作用研究[D];福建醫(yī)科大學(xué);2014年
2 鄭建偉;口腔鱗狀細(xì)胞癌差異基因的篩選驗(yàn)證及相互作用的生物信息學(xué)分析[D];南方醫(yī)科大學(xué);2015年
3 李怡寧;HIF-1α抑制劑PX-478在自噬介導(dǎo)的口腔鱗狀細(xì)胞癌糖基化中的研究[D];浙江大學(xué);2016年
4 李文鹿;Bit-1在口腔鱗狀細(xì)胞癌侵襲、轉(zhuǎn)移及凋亡中作用的初步研究[D];鄭州大學(xué);2016年
5 李曉暉;COX-2通路中PGE2-EP4對(duì)口腔鱗狀細(xì)胞癌生物學(xué)特性的作用及機(jī)制[D];南方醫(yī)科大學(xué);2017年
6 崔婧;口腔鱗狀細(xì)胞癌的生物信息學(xué)分析[D];山東大學(xué);2014年
7 孫曉菊;環(huán)氧合酶-2與口腔鱗狀細(xì)胞癌關(guān)系的初步研究[D];中國(guó)醫(yī)科大學(xué);2005年
8 吳國(guó)民;口腔鱗狀細(xì)胞癌腫瘤干細(xì)胞的分選和鑒定[D];吉林大學(xué);2011年
9 董作青;Id-1基因沉默抑制口腔鱗狀細(xì)胞癌生長(zhǎng)轉(zhuǎn)移的研究[D];山東大學(xué);2010年
10 張曉英;Gadd45a在口腔鱗狀細(xì)胞癌預(yù)后及治療中的作用研究[D];山東大學(xué);2011年
相關(guān)碩士學(xué)位論文 前10條
1 劉璽章;P-gp、HIF-1α在口腔鱗狀細(xì)胞癌癌組織中的表達(dá)和臨床意義[D];廣西醫(yī)科大學(xué);2015年
2 馬賁;HPV感染對(duì)口腔鱗狀細(xì)胞癌朗格漢斯細(xì)胞數(shù)量的影響[D];佳木斯大學(xué);2015年
3 儲(chǔ)偉明;Neuropilin-1誘導(dǎo)口腔鱗狀細(xì)胞癌上皮間充質(zhì)轉(zhuǎn)化及其機(jī)制的研究[D];南京醫(yī)科大學(xué);2015年
4 李姣;YAP、p53蛋白在口腔鱗狀細(xì)胞癌中的表達(dá)及其與細(xì)胞凋亡間相互關(guān)系[D];山西醫(yī)科大學(xué);2016年
5 高前嵩;環(huán)氧合酶-2在口腔鱗狀細(xì)胞癌發(fā)生過(guò)程中的表達(dá)和意義[D];安徽醫(yī)科大學(xué);2016年
6 王潤(rùn);口腔鱗狀細(xì)胞癌及癌前病變中鉀離子通道Kv3.4的表達(dá)研究[D];安徽醫(yī)科大學(xué);2016年
7 寧毅;Transformer 2β、RGS16蛋白在口腔鱗狀細(xì)胞癌中的表達(dá)[D];山西醫(yī)科大學(xué);2016年
8 馬猛;谷胱甘肽在口腔鱗狀細(xì)胞癌Cal-27細(xì)胞系ROS抗化療機(jī)制中作用的研究[D];山東大學(xué);2016年
9 李瑾;Beclin1、LC3和P62在口腔鱗狀細(xì)胞癌中的表達(dá)及臨床意義[D];鄭州大學(xué);2016年
10 萬(wàn)瀟瀟;PIK3CA基因表達(dá)及SNPs在口腔鱗狀細(xì)胞癌發(fā)生發(fā)展中的意義[D];重慶醫(yī)科大學(xué);2016年
,本文編號(hào):2241332
本文鏈接:http://sikaile.net/kejilunwen/jiyingongcheng/2241332.html