基于miRNA芯片的喉咽鱗狀細胞癌對TPF方案誘導(dǎo)化療敏感性相關(guān)miRNA的初步分析
本文選題:腫瘤 + 鱗狀細胞; 參考:《中國耳鼻咽喉頭頸外科》2016年04期
【摘要】:目的運用miRNA芯片篩選與喉咽鱗狀細胞癌對TPF方案誘導(dǎo)化療敏感性相關(guān)的差異miRNAs,生物信息學(xué)分析確定具有診療價值的目標miRNA并進行驗證。方法利用Affymetrix GeneChipmiRNAArray4.0芯片對12例TPF方案誘導(dǎo)化療敏感的原發(fā)喉咽鱗狀細胞癌患者及9例不敏感的患者的腫瘤組織行差異miRNA的篩選。選擇文獻中已經(jīng)報道的和腫瘤發(fā)生相關(guān)的miRNA作為目標miRNA,并采用RT-PCR在24例原發(fā)喉咽鱗癌腫瘤組織(14例敏感,10例不敏感)中驗證目標miRNA。結(jié)果篩選出24個miRNA在敏感組與不敏感組間表達有顯著差異,其中6個miRNA在對TPF方案誘導(dǎo)化療敏感組中表達上調(diào),18個miRNA表達下調(diào)。運用miRNA靶基因預(yù)測數(shù)據(jù)庫mirfocus對篩選出的24個差異miRNA進行分析,確定在敏感組中低表達的hsa-miR-211-3p、hsa-miR-4253、hsa-miR-4443、hsa-miR-193b-3p作為目標miRNA。采用RT-PCR對目標miRNA進行驗證,hsa-miR-4253、hsamiR-4443、hsa-miR-193b-3p與芯片篩選結(jié)果一致。結(jié)論hsa-miR-4253、hsa-miR-4443、hsa-miR-193b-3p在誘導(dǎo)化療敏感組與不敏感組間有顯著性差異,可作為治療方案的選擇指標,并為進一步研究喉咽鱗狀細胞癌對誘導(dǎo)化療敏感性奠定分子生物學(xué)基礎(chǔ)。
[Abstract]:Objective to screen the difference in sensitivity of larynx squamous cell carcinoma (LSCC) to TPF induced chemotherapy by using miRNA microarray, and to identify the target miRNA with diagnostic and therapeutic value by bioinformatics analysis and verify it. Methods Affymetrix GeneChipmiRNAArray4.0 microarray was used to screen the tumor tissues of 12 patients with primary larynx squamous cell carcinoma and 9 insensitive patients with TPF regimen induced chemotherapy-sensitive primary larynx squamous cell carcinoma (LSCC). The miRNA related to tumorigenesis in the literature was selected as the target miRNAs, and RT-PCR was used to validate the target miRNAs in 24 cases of primary larynx squamous cell carcinoma (LSCC) in 14 cases of sensitive tumor tissues and 10 cases of insensitivity). Results the expression of 24 miRNA was significantly different between sensitive group and insensitive group. 6 miRNA were up-regulated and 18 miRNA down-regulated in chemosensitive group induced by TPF regimen. MiRNA target gene prediction database (mirfocus) was used to analyze 24 differentially screened miRNA, and hsa-miR-211-3psa-miR-4253 hsa-miR-4443 hsa-miR-193b-3p was identified as the target of miRNAs. RT-PCR was used to verify the target miRNA. The results of hsa-miR-4253hsamiR-4443hsa-miR-193b-3p were consistent with those of the chip. Conclusion hsa-miR-4253hsa-miR-4443 hsa-miR-193b-3p has a significant difference between chemosensitive and insensitive groups, and can be used as a selective index for the treatment of laryngopharyngeal squamous cell carcinoma. It also provides a molecular biological basis for further study on the sensitivity of larynx squamous cell carcinoma to induced chemotherapy.
【作者單位】: 首都醫(yī)科大學(xué)附屬北京同仁醫(yī)院耳鼻咽喉頭頸外科耳鼻咽喉頭頸科學(xué)教育部重點實驗室(首都醫(yī)科大學(xué));
【基金】:北京市醫(yī)管局揚帆計劃(XMLX201311) 北京市科委重點項目(Z141107002514003)聯(lián)合資助
【分類號】:R739.6
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