CN106884046A - 原位杂交检测口腔肿瘤组织中长链非编码rna linc00472试剂的应用 - Google Patents
原位杂交检测口腔肿瘤组织中长链非编码rna linc00472试剂的应用 Download PDFInfo
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Abstract
本发明公开了原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472试剂的应用,即用于制备口腔肿瘤患者的预后制剂,特别是制备出原位杂交检测法预测口腔肿瘤患者预后的试剂盒。通过研究证实LncRNA LINC00472在口腔肿瘤组织中表达下调,低表达LncRNA LINC00472的口腔肿瘤患者比高表达LncRNA LINC00472的口腔肿瘤患者预后差,因此,将LncRNA LINC00472的表达用于口腔肿瘤患者的预后预测,可以为口腔肿瘤患者的预后提供强有力的分子生物学依据,具有深远的临床意义和重要的推广应用前景。
Description
技术领域
本发明属于肿瘤分子生物学领域,具体涉及长链非编码RNA LINC00472的原位杂交探针的应用方法。
背景技术
口腔颌面部恶性肿瘤是常见高发的头颈部恶性肿瘤,容易发生颈部淋巴结转移,预后较差。研究表明,这种肿瘤的发生发展是多基因参与、多步骤、多阶段的复杂过程,其中抑癌基因的失活与癌基因的激活发挥了关键的作用。
长链非编码RNAs(long non-coding RNAs,lncRNAs)是一类长度超过200nt、缺少特异完整的开放阅读框、无或很少有蛋白编码功能的RNAs分子。最近的研究表明,lncRNAs通过在表观遗传、转录和转录后水平广泛调节基因的表达,它们参与了生物体生长、发育、衰老及死亡等重要生命活动的调控。越来越多的研究表明lncRNAs的异常表达或功能缺失与肿瘤的发生发展密切相关。一些lncRNAs分子在肿瘤的诊断和治疗方面具有重要的意义,且可以作为肿瘤预后判断新的分子标记。目前,已经克隆的人类lncRNAs基因已超过4万多个,但绝大部分lncRNA的功能未知。
我们检测了LINC00472在临床离体肿瘤样本中的表达水平,并分析了LINC00472表达水平与临床病例资料的相关性。我们从口腔肿瘤及相对应的正常对照组织中抽提RNA后通过逆转录,实时定量PCR,检测了LINC00472的表达情况,结果显示LINC00472在口腔肿瘤组织中表达下调。我们随后又利用原位杂交的方法,进一步在存档石蜡样本验证了LINC00472在口腔肿瘤中表达显著下调,因此针对LINC00472的检测制剂可用于口腔肿瘤的辅助诊断,结合临床回访资料进行生存曲线分析发现LINC00472表达低的患者其生存时间短于该lncRNA表达高的患者,因此针对该lncRNA的检测制剂也可以用于口腔肿瘤的预后判断。
发明内容
本发明的目的是提供lncRNA LINC00472的原位杂交探针的应用方法,利用LINC00472序列得到的原位杂交探针可以制备用于口腔肿瘤辅助诊断或者预后预测的制剂。
原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂的应用,所述的试剂用于制备口腔肿瘤辅助诊断或者疗效预测制剂;该长链非编码RNA LINC00472的序列如SEQ NO:1所示。
所述的口腔肿瘤辅助诊断或者疗效预测制剂是根据lncRNA LINC00472在口腔肿瘤中的表达情况来辅助诊断和疗效预测,口腔肿瘤患者的lncRNA LINC00472表达显著下调。
所述的原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂包括以下用于原位杂交检测LINC00472表达的寡核苷酸探针中的一种或几种:
LINC00472探针1:5’-CAAAACTAGGATTCTGTCTTTGAGGCAGAC-3’
LINC00472探针2:5’-AAGAATGGAAGTGGGAAGAGAGAAAGACTT-3’
LINC00472探针3:5’-TAATTCAGGGGTATCCGTCTTAGTTTAGGC-3’。
所述的原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂包括以下阳性对照探针中的一种或几种:
GAPDH探针1:5'-CCACTTTACCAGAGTTAAAAGCAGCCCTGG-3'
GAPDH探针2:5'-GTCAGAGGAGACCACCTGGTGCTCAGTGTA-3
GAPDH探针3:5’-CAGTAGAGGCAGGGATGATGTTCTGGAGAG-3'。
试剂中还含有:地高辛寡核苷酸加尾试剂、抗地高辛-辣根过氧化物酶复合物检测试剂、DAB染色试剂;
其它常规生物化学试剂,包括20x柠檬酸钠缓冲溶液(saline sodium citrate,SSC),硫酸葡聚糖(Dextran sulphate),去离子甲酰胺(Deionized Formamide),多聚腺苷酸(polyadenylic acid,Poly A),多聚脱氧腺苷酸(polydeoxyadenylic acid,Poly dA),变性剪切的蛙精DNA(denatured and sheared salmon sperm DNA,ssDNA),酵母转运RNA(yeast t-RNA,tRNA),二硫苏糖醇(DTT),50x邓罕氏缓冲液(Denhardts’s solution),磷酸缓冲液(PBS buffer),胃蛋白酶K,牛血清白蛋白(BSA),三乙醇胺(TEA),醋酸酐,TNB缓冲液(即:pH7.5的0.1M Tris-Cl+0.15M NaCl+0.5%阻断试剂),TNT缓冲液(即:pH7.5的0.1MTris-Cl+0.15M NaCl+0.05%Tween 20)。
我们通过原位杂交在口腔肿瘤及正常口腔上皮存档石蜡组织标本中发现LINC00472在口腔肿瘤中表达显著下调,且LINC00472的表达与预后密切相关,LINC00472表达低的患者更快地死亡,提示LINC00472可作为口腔肿瘤预后预测的分子标志。本发明为口腔肿瘤的辅助诊断和预后预测提供了强有力的分子生物学工具,具有深远的临床意义和重要的推广应用前景。
附图说明
图1为利用实时荧光定量PCR的方法检测口腔肿瘤离体样本中LINC00472的表达水平;
LINC00472在口腔肿瘤(T)中的表达比正常对照(N)样本中显著下调;
图2为原位杂交检测LINC00472在口腔肿瘤及正常口腔粘膜中的表达;
左图为正常口腔粘膜组织,右图为口腔肿瘤组织,(放大倍数:200×),LINC00472在口腔肿瘤中表达水平较低;
图3为口腔肿瘤中LINC00472的表达与患者预后的相关性;
LINC00472高表达的患者预后比LINC00472低表达或不表达者好,即LINC00472低表达或不表达的患者更快死亡。
具体实施方式
以下结合具体实施方式进一步说明本发明,而非限制本发明。
实施例1,实时荧光定量法检测证实LINC00472在口腔肿瘤中表达下调
1.材料与方法:
9例正常口腔粘膜和9例口腔肿瘤组织抽提总RNA,2μg RNA经逆转录成cDNA后,进行实时荧光定量PCR。LINC00472上游引物为5'-GCATCTGTCAACGCTCCTCT-3'和下游引物5'-CCGCGTTCTTTGTGTGTCTC-3'。
用于对照的内参看家基因GAPDH上游引物为5'-ACCACAGTCCATGCCATCAC-3'和下游引物5'-TCCACCACCCTGTTGCTGTA-3',
实时荧光定量PCR反应体系
实时荧光定量PCR反应步骤
反应结束后确认实时荧光定量PCR的扩增曲线和熔解曲线,各基因的表达强度根据CT值(threshold cycle values)、内参基因(GAPDH)标化后,采用group t-test检验计算P值。
2.结果
LncRNA LINC00472在正常对照组织中表达较低,而在口腔肿瘤组织中低表达或者不表达P<0.001(图1)
实施例2,原位杂交检测发现LINC00472在口腔肿瘤中的表达与患者预后相关
1.材料方法
1.1用于口腔肿瘤和正常对照组织原位杂交的寡核苷酸探针
根椐LINC00472基因序列分析设计出杂交参数最佳特异性最好的3条寡核苷酸探针,另外,以看家基因GAPDH为阳性对照。
用于原位杂交检测LINC00472表达的寡核苷酸探针:
LINC00472探针1:5’-CAAAACTAGGATTCTGTCTTTGAGGCAGAC-3’
LINC00472探针2:5’-AAGAATGGAAGTGGGAAGAGAGAAAGACTT-3’;
LINC00472探针3:5’-TAATTCAGGGGTATCCGTCTTAGTTTAGGC-3’。
阳性对照探针(检测看家基因GAPDH):
GAPDH探针1:5'-CCACTTTACCAGAGTTAAAAGCAGCCCTGG-3'
GAPDH探针2:5'-GTCAGAGGAGACCACCTGGTGCTCAGTGTA-3'
GAPDH探针3:5’-CAGTAGAGGCAGGGATGATGTTCTGGAGAG-3’。
寡核苷酸探针采用化学合成方法合成
1.2寡核苷酸探针标记试剂盒和原位杂交检测试剂
Dig Oligonucleitide Tailing Kit(2nd Generation)试剂盒(Roche公司),抗地高辛-辣根过氧化物酶复合物检测试剂盒(Anti-Digoxigenin-POD,Fab fragments,Roche公司)。增强原位表达检测信号的TSA信号放大系统(TSATM Biotin System,NEL700试剂盒,PerkinElmer公司)。DAB染色试剂盒(北京中山公司)。20×SSC,硫酸葡聚糖(Dextransulphate),去离子甲酰胺(Deionized Formamide),多聚腺苷酸(polyadenylic acid,PolyA),多聚脱氧腺苷酸(polydeoxyadenylic acid,Poly dA),变性剪切的蛙精DNA(denaturedand sheared salmon sperm DNA,ssDNA),酵母转运RNA(yeast t-RNA,tRNA),DTT,50×Denhardts’s solution,PBS buffer,胃蛋白酶K,BSA(牛血清清蛋白),三乙醇胺(TEA),TNBBuffer(0.1M Tris-HCl,pH7.5,0.15M NaCL,0.5%Blocking Reagent),TNT Buffer(0.1MTris-HCl,pH7.5,0.15M NaCL,0.05%Tween 20)醋酸酐,阻断试剂(Blocking reagentagent,Roche公司)。
1.3其他主要试剂和材料
无水乙醇、90%酒精、70%酒精、50%酒精、松节油、双蒸水、PBS缓冲液(pH7.2~7.4,NaCl 137mmol/L,KCl 2.7mmol/L,Na2HPO4 4.3mmol/L,KH2PO4 1.4mmol/L);3%甲醇-双氧水溶液(80%甲醇和30%双氧水配置);0.01mol/L柠檬酸盐缓冲液(citrate buffer,CB,pH6.0±0.1,9ml 0.1M柠檬酸溶液和41ml 0.1M柠檬酸钠溶液加入450ml蒸馏水中临时配置后再校正工作液pH值);0.1%胰蛋白酶;苏木素;1%盐酸酒精(1ml浓盐酸+99ml 70%酒精配置);组织微阵列专用封片胶(PTS Cure MountⅡ);专用盖玻片(480×240mm2)定制于郑州玻璃仪器厂。Leica低熔点(58℃)石蜡,国产蜂蜡,无水酒精,二甲苯,10%中性多聚甲醛(0.01mol/L,pH7.4,DEPC双蒸水和PBS缓冲液配制),苏木素,伊红,中性封片树胶,盖玻片,载玻片。
1.4寡核苷酸探针的标记
利用3-tailing DIG Olignucleutide Kit进行寡核苷酸探针标记,反应体系如下。
100pmol oligonucleotide+ddH2O=9μl(control:control oligonucleutide 5μl+ddH2O 4μl)
混匀,稍离心。37℃水浴反应30min,加2ul EDTA(0.2M,pH 8.0)中止反应。
1.5寡核苷酸探针标记后纯化
为了增加标记探针的纯度,需对已标记的探针进行纯化,具体操作如下:
a)探针反应混合物(22μl)+2.5μl 4M LiCL+75μl 100%冷乙醇(-20℃).
b)-70℃沉淀60min,or-20℃2h。
c)13.000×g 4℃离心15min。
d)弃上清,用50μl冰冷的70%(V/V)乙醇洗涤。
e)13.000xg 4℃,离心5min。
f)弃上清,真空4℃干燥。
g)用无菌双蒸水重溶探针。
1.6组织切片杂交前处理
a)4℃保存的组织切片置于58℃烤片30min,熔化表面石蜡。
b)二甲苯依次脱蜡3×5min。
c)梯级酒精洗涤,100%酒精2×2min→95%酒精1×5min→70%酒精1×5min→50%酒精1×5min→DEPC水洗涤2×3min→DEPC-PBS洗涤2×5min。
d)滴加300μl胃蛋白酶K(10μg/ml)于切片上,37℃消化20min。
e)切片入PBS(0.1M PBS+2mg/ml谷氨酸)洗涤1min,中止反应。
f)切片入0.2N HCL,于37℃反应20-30min,增加组织的通透性。
g)切片用4%多聚甲醛(0.1M PBS溶解)后固定10min,室温。
h)为了增加组织阳性杂交强度,对切片进行乙酰化处理。切片入0.25%乙酸酐BufferⅠ(0.1M三乙醇胺),室温10min。
i)1M PBS洗涤2×5min。
1.7组织预杂交和杂交
a)预杂交:-20℃保存的预杂交液,先置于37℃孵育60min,预杂交液的用量为每平方厘米切片面积12.5μl,相应大小的石蜡膜覆盖切片,37℃湿盒中预杂交2小时。(预杂交液成份包括:2XSSC,10%Dextran sulphate,1X Denhardt’s solution,50mM PhosphateBuffer(PH 7.0),50mM DTT,250μl,100μg/ml poly A,5μg/ml poly dA,250μg/ml yeastt-RNA,500μg/ml ssDNA,47%Deionized formamide)。
b)移去石蜡膜,甩掉预杂交液,切片置于2×SSC中5min。
c)杂交反应:37℃杂交过夜(18-20h)。每一切片加入250μl杂交液并用石蜡膜覆盖。预杂交液中加入相应的探针就成为杂交液。杂交液在预杂交时配制,放置37℃孵育,使探针充分溶解于杂交液中,本实验用多条寡核苷酸探针混合,按每一探针500ng/ml浓度配制成探针杂交液。地高辛加尾标记试剂盒标记探针浓度计算依据:每一探针的浓度按其与阳性定量探针时检测反应时显色进行比对和100pmol 30个碱基的裸探针标记反应理论探针产量为900ng两种标准进行综合计算出标记探针的浓度。
d)杂交后洗涤,切片浸入2×SSC,10min,揭去石蜡膜。依次于摇床上摇动洗涤,2×SSC(0.5%SDS),2×15min→0.25×SSC(0.5%SDS),2×15min。
1.8杂交后显色检测反应
a)采用Anti-Digoxigenin-POD检测地高辛探针与目的RNA结合复合物;TSA放大系统增强原位杂交反应显色反应的阳性信号,DAB显色。
b)切片转至TNT缓冲液中,3×5min。
c)滴加TNB阻断缓冲液,300μl/TMAs,室温,30min。
d)不洗,吸去多余阻断剂,1:100稀释的Anti-Digoxigenin-POD(TBS+0.1%TritonX-100+1%阻断剂),室温4小时。
e)TNT Buffer(0.1M Tris-HCl,PH7.5,0.15M NaCL,0.05%Tween 20)洗3×5min。
f)切片上滴加信号放大试剂Biotinyl Tyamid,300μl/TMAs,(Biotinyl Tyramid贮存液:Biotinyl Tyramid溶解于0.2ml DMSO,Biotinyl Tyramid工作液:1×稀释液,1:50稀释Biotinyl Tyramid贮存液),室温10分钟。
g)TNT洗,3×5min。
h)切片滴加SA-HRP(链霉卵白素-辣根过氧化物酶),300μl/TMAs,室温30min。
i)TNT洗,3×5min。
j)蒸溜水洗涤,1×1min。
k)DAB显色,显微镜下控制显色反应。
l)苏木素复染,
m)酒精梯级脱水,切片干燥。
n)滴加组织切片专用封片胶,相应规格的盖玻片盖片,切片胶带转移系统配备的紫外灯下交联切片1min。
1.9结果判断及标准
应用光学显微镜分别在低倍和高倍镜下进行观察,首先观察目标RNA的阳性表达信号在观察目标细胞内的定位:位于细胞核、细胞浆或细胞膜。
再分别以该检测RNA表达部位阳性信号的强度和阳性表达的细胞数两种标准进行综合评分,判断标准为:(1)依据阳性细胞染色强度判断:a.细胞无染色,记0分;b.细胞染成浅棕色为弱阳性,记1分;c.细胞染成棕色且无背景着色,或细胞染成深棕色并有浅棕色背景为中等阳性,记2分;d.细胞染成深棕色且无背景着色为强阳性,记3分。(2)依据阳性细胞表达数计分:a.无阳性细胞表达,记0分;b.阳性表达细胞数≤25%,记1分;c.25%<阳性细胞数<50%,记2分;d.阳性表达细胞数≥50%,记3分。
为了尽量降低评分结果的主观因素,由两位病理学专家分别按上述标准之一各自进行判断和评分,再将两者评分相乘,结果为:①0分者最终计为0分,认为阴性表达;②1分和2分者最终计为1分,认为弱阳性表达;③3分和4分者最终计为2分,认为中等阳性表达;④6分到9分者最终计为3分,认为强阳性表达。
1.10分析和统计软件
应用SPSS13.0统计软件对实验结果进行统计学分析,两两比较用χ2test或Fisherexact test,相关性分析采用Spearmen correlation方法;P<0.05即差异有统计学意义。生存曲线分析采用Kaplan-Meier method及log-rank test;多变量分析采用Cox’sproportional hazards model;P<0.05即差异有统计学意义。
2结果
1)lncRNA LINC00472在口腔肿瘤及正常对照组织中的表达
LINC00472在正常对照组织中均有表达(图2左),而在大部分口腔肿瘤组织中表达较低或不表达(图2右),两者之间具有明显的统计学差异(P<0.05)。
2)Kaplan-Meier生存分析
我们对所有69例口腔肿瘤患者进行了电话随访,详细询问了他们的首发时间、治疗情况、有无复发、有无再患其他疾病、复发及死亡时间等,并登记了生存时间和状态,并对口腔肿瘤组织中LINC00472的表达与病人的生存时间和状态进行的生存分析,发现LINC00472高表达的患者生存时间较LINC00472表达低或者不表达的患者要长(图3)。说明LINC00472是一个与口腔肿瘤预后相关的分子标记,该lncRNA表达低,病人预后差。
SEQUENCE LISTING
<110> 中南大学
<120> 原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472试剂的应用
<130> 无
<160> 11
<170> PatentIn version 3.3
<210> 1
<211> 9515
<212> RNA
<213> 长链非编码RNA LINC00472的序列
<400> 1
augcgaggcu ggggccgguu gccuaccggc cgcuucucgc cgaggcaguc cagacuuuuc 60
ccccggcggu gcccgcucca agacagcauc ugucaacgcu ccucuucucc ccuccuccuc 120
cugccgggcc gggcuccgcc ggcugcggcc gagaggacgc gggacccggc gcggugagcc 180
caucagcugu caggcgagcg gcgaagcggc uggagggcgg cgagagacac acaaagaacg 240
cggugggcgg cggcggcgaa aggggacggc aacuccuccc cgcgcccgcc ggugccaccg 300
ccggccgugc uuguuccgag gccgcgcaga caaugcggcc gggcucgucc ccgcgugccc 360
cagagugcgg agcgcccgcg cucccccgac cccaacuuga ccgucucccg gcucgcccag 420
cccccucccg ggguaggggc gcccccuccc uccgguggcc ggcgaaggaa gucgguccgc 480
ggccgcagau cccggcaacu ugcgaaccgg gaaaaguuug cggcgccucc gcggggcggc 540
gcgacgcggc ccgccccucg cguccgcggu caucgcgggu gacuuucucg acucgucguc 600
agccggggcc gcagcgcggc cgguggggac ugcggggcgg gccggagucc guccgagggc 660
ucccgcaccu cgggcugcgg auuucaggua cuccacuggg cauuuucucu ucauggagcu 720
uauagcaaca aaaguguuuu acaaaacacc agacauguug gcaucaucuc uuaguugggc 780
cauguggcca gggaacccuu caugaaacca ccucugcagu ccuggagagu ugcuguagaa 840
gaaggaaaag agaggaagac aacacaacac aggaggggau aaguaccucu ggacacaaug 900
gaaguaguag uuguugagca gagggaaagg gauaggagaa ggauguggac ugcagugcug 960
cagugccagg uaauaacuuu gaucauguac cuccuuggcu caggugcugu cucuucuacu 1020
cuccuccuua cuuguacuac cuuauuuagc acuuaauuau auacuuucuu gacucacuuu 1080
gagacacacu gauuaugugg ucugccucaa agacagaauc cuaguuuugg auuuuagcau 1140
uacugaucua uagccuugca ggggcuuaag gauggcagcu gucucucucc cuugggaucu 1200
agcuuuugca aauauugaag ggaagagauu ucuuugaucu uauaggaaua gauccacagu 1260
uccucuccag auuugcuuuu auagagaagu gugugucacc aaaacaaugg agauacgguc 1320
agagaggccc cuacccccag aauuuuaaua uaauuuuacu uucuggggca uuuauucuug 1380
acaaauacuu ucucuccuau cagcucacuu guuccucaca aaaacccuau aagauauuaa 1440
uauuauuaaa cagaccccua ugaagcaccu caagucuuuc ucucuuccca cuuccauucu 1500
ugcacaccuu uugcuagacu agucucugcg uucaucacau cagguuucua aaauaaaagu 1560
ccccuaauaa cuuucuauuu guucucucau cauauugaac cuuuuuugcc uggcuuauaa 1620
gguggccuua aaaccccauu uuccucuaaa cauugucucu guaguucagg aauauggcag 1680
gcucaacacu augcuugagc ccauauugcu ucccucauua gugaugccuc cucucagacc 1740
acccagauuc uacucauucu ucaauuucca gcuucuccuu ggagccuucc cagaucauua 1800
gcuucuuaaa aaucccagcu uucucugaau ucugauggua gcccccguua uuuggacaau 1860
uauguccugg ucuuaaaguc cuaaugggaa aaaaaaguac augauggacu ucauguagag 1920
aagaaagcac uggacugagu uuuaagacag cugcuaagga gcugugugag ccaaaccagg 1980
uuacuuuacc ucucuggauc uauauuugcu gaucuguuaa guggagacaa uugggucaga 2040
uaaucuuggu ggucuuugcu uauucugagg uucuuggaca acuuggccua guucacgugg 2100
gaugggauug aagaucuuac ugaguucuug gauggaaaug ucaguaaugg gcacuuagug 2160
ccuucaggac uuguucuaua cuaucccaga aauuucugau gcuaaacuug gcaauuuuua 2220
aaugucauau uccuuuucuc caaacucuuu aaccacaaga auucagggaa gguuaugggg 2280
ggugacuuag uuaucuggau aauacauauu guggacaaua uagcauuauc cuugggaaug 2340
auuucauauu guugaauaaa uaggaucaac uucuugauaa accuuagucc caagcauuuc 2400
aucuucauug gauaguguua cauaguaaua uauuuauguu uucuuuuaau cauuucauaa 2460
cuuggaaaau acuaacauag ucaaaacucu aggguaggug auacaugagu uucuguagua 2520
aucugguugg agacauguug uaauucugua uauauaugua cauuuauccc augcauguua 2580
ugccuaaacu aagacggaua ccccugaauu aagaggugcu guuauacauu gaccaggcuu 2640
aagaauaucu cuuuaaagug ugucgacauu uaauugaccu uuggaaguuc auucuguuaa 2700
ucauacucaa agugcuaaag cuaugguuga cugcucuggu guuuuuauau ucauucgugc 2760
uuuagcauau aaauucuuca gcauaauugc uacuuauuua gcaagaguuu ccuuuauuug 2820
aaaaugugag uugugcuugu auuuuugugu cuuucuuucu uucuuucuuu uuuuaaacuu 2880
ugcuucaggc uggguagugg uagagguuug aauuaaaaug uuuuccuguc aguaguugua 2940
ugaggugugg cuucuuaauc uagaaguaau ggaaauuucu ugcuuaaaug aagugcacuu 3000
uucuuccugc agaaguuaga acucuuuuag acaagcuuaa cacuucaaaa cuguauaucu 3060
uuaacagaaa cuuuuggaaa uuuuuaaauu ccauuugugu agauuaaaaa uaucaaugcu 3120
aauacuuucu auuaaauaag gauuuaucua uuuucauaaa accucuaauu auauuccuug 3180
aauugcuaug aguagaauuu uguuguaaac acaauauuuu uaaaaaguca aauauauuuu 3240
aaaaaucuua acauuauauu acuauaacuu agagaacagg uguuuacaug uuuaaaauuu 3300
ucuaggccuu aaauuuguga aaucagucuu ucagaaguua uuuuuaauau aguuaucugu 3360
guuacagguu uauaaguuga cauuucaauu uaaaauuuuu ucaauuuaua uuucaaugac 3420
caggaaaaaa uaguuaaacu uauuccuaaa uuuuaauaga aaaauaaaaa accacauagu 3480
uguuaauuuc ugguaauuua ucuugagacu ccaggcaugu uuuuagaaca uuuuuaccuu 3540
aaaagcaauu uugaaauagg gaaauuaaag uuuaaagcag aguuuucacu uuaaugaggu 3600
aauuuuauac uucccagaua gguaggccca uauucaagaa cacucugauc ucuguuuaua 3660
guaaguuuug augccauuau aucauuuacu uauucacgca uuauaagcau aguagauagc 3720
cccauuguca cgaagcuggc auuauuuucu ugucugucau ucaauauugu ccccuuuuuu 3780
uuuucuguuu ucaucauagc cguccuuuuc auuuuauugu agcccugacu cgaaaugaaa 3840
guaaguuuga acucuuaaaa aagaguuccu caaacucuuu uuuaagaaua uacagugaaa 3900
ugucuuaaau aauauuaucu aaauaauacc uaaagaaugc aaaugacuug caaugcugaa 3960
uagucagaca caggauguuc caugcuaagg guagacucau auuuccacuu uauaaaaugu 4020
gguuucagaa aacaaauaga uguguuucuu ccuuaauaau uaguguuuca ggaccaaagu 4080
ugacuaaaua uggaaguuua agauaaaacc cgguuucuua gggaaucuuu cucaguccuu 4140
aguaauucug uagaauugau gauagagugg caacuucaau acacucagua uucuuuucug 4200
uuugaagucu guuuugccau uggaaaaaac uuauuguugu uugaauuugg guauauguau 4260
ucacagaugg uuuacuuuau uuuuauuuug uuuaaacaaa uacuuucaug ucccaaacac 4320
ugagacaugu uucauguccu aaacacuuua uaaauauuag aauauuuaau ccccuuaacu 4380
cuguaguuau aauuaucuuc auuuuacaau ugagaaaacu aagauacgac guuuuauuua 4440
augguaacgc cuuaaguaag gggagaguga uaaguguaag cagaguggaa aacuuaguag 4500
ugcuaaggag caacagaagu augugcaaga guuugggaag augugucugc uuggaaagga 4560
ucagggacuc agcugggauc agucuuaaag agcaacaugu ccucauuccu caauuuuaag 4620
ccuuugggcu cuagaaguaa agggcaaacu uagaggaggc acuccucagg uuucagcugc 4680
cuguuccggc cuggugaggu ggcuguacug gcucaugugu uucucauagg gcuacaugag 4740
ccuuuauguc uuaccuccuc cucauuucuu ggcugacucc ugcuuuuuug gaggguuuaa 4800
cuucucucuc agcuagaagg uuaggcauug caaauaccag uggauaauuu uuuucuuagc 4860
uuuaacccca gcccauuuca acccccucuu ugcccuuugu auauucuuuu gaaaauauga 4920
uccaguagug uuuaugaaug uguguugugu aaaauuuaga gauugauguu aaacaacaga 4980
auuaaaggac aaagcugucu uuuuuguugg aauuggggau gggagagcag cucaaagugg 5040
gaaauaugga gaaaggagag acauugugga aaagaagaga uaaauugagg ggaaaaaaag 5100
aggaugaaaa aaugaagaga gagaauuacu gaugugcuuc acacccacac cuccucucca 5160
acuucacagu aacagaggca augucacuau cuuuuaccug acaagugcuu uaccagggag 5220
uugugccugg caucguggga guggaaaauu uuucccuuuu gcauuuugag acuugggugu 5280
gcugcuuuaa gaugccacug guaucuaagu aauguuuguu uauacuggau auuuuucucu 5340
guagccuuug uggauuggac uuauaauaua aacaauauug uuagcagaac ugcagguacu 5400
cuauugcuau guuuauuuua uuaguuaaaa aacuaccaga gcccuaggac uucugagcac 5460
auuuagaaaa uaccagaggc aauuuuaaga cuagcauuag aaagaaagaa aagaauaaga 5520
auaaaacuaa gacuugcaua ccuuagaauc cuaaccaaug uggugauuuu uaaaaauuaa 5580
uguuucagag acucuaaauu aggguaguug guuucaucaa uuacauuuuu uaaguuaaua 5640
uaaagugcuu uuguauguaa auucucuuaa uagauaauuu agguaaaaug aaaguguggc 5700
auuuuuuguu ccauagaaug uaaaacuaac gucagaauaa gaauucuuuu gggaauuuag 5760
gauuuuuuug augcuucuca aaucaucugu aaugacuuuu auuuauagaa aagguagauu 5820
auucauuagu uuuuaugaaa aacacucagu uuaaauagcc ggguauggug gcgcauggcu 5880
guagucccag cuacucagga ggcugggcac gagaauugcu ugaaccugug aggcagaggu 5940
ugcagugagc caagaucgca ccacugcacu ccagccuggu ccagagugag auuccgucuc 6000
gaacaaaaca aaacaaaaau auugagcuaa ucuaaauggu aaaaaucuag auuugaagaa 6060
auuuauuuua aaauaguugu ucauuuguca aauagaaaag uaugaucuua gcagguuugg 6120
uuagaucccu aucugaaaca aaguaaacua aagauguuuu ucuugaucaa ugcauagcaa 6180
uaacugcugu ucaaacaugu gaggaaucac caguaaauug ggggauagaa agcaggaaaa 6240
ggagcuuuuu ucucuuauuu uuuuucauuu aucaguuuuu cccauuuguc cauccuuucc 6300
uauaaucaug gaaauuuuua uuuuuuacac uccucucccc auuuuuuuau ccuagauugc 6360
caccacacca agguuuucua gaguuaggca gaaagagaac cugggccuag augcuaaugg 6420
aaacuauccc augcuuucuc agacucucuu uccuccccag agacaagagg agcaaaacag 6480
gaguugaugg cucauugcug uugcuucugu ggcugcccug uuugguugac cugagcuuuu 6540
uuuaaaaacc uccacucuug acgcuuaacu cuaugaauaa aauuagggcc agucacacug 6600
uauuuucauc aucaguuauc ccuagugauu caaauuuagc acaaaccugc ugugaguaca 6660
uauuaauuag gugaauacag uagaaugcaa ucauaacaug agucuuuuaa uaacuauucu 6720
uuguuugauu uuuauuuuag aaguuugaag uuauuuuguu gaaaaucuag aaaaucuuua 6780
ugugagcaac ugagguucgg guagcccaca acaguuuaaa ucaaacauua acuugcagua 6840
aaacacuacu gaaagugucu uugauuuuga ggugcagaga gcuguuucaa guuaaguugc 6900
uauauuaguc uguucucaug cugcuaauaa agacauaccu gcaaccgggc aauuuauuaa 6960
aaaaaaaaag agguuuaauu gacugacagu uccacauggc uggggaggcc ucaccgucau 7020
ggugaaagag caagggaugu cuuacauggu ggcaggcaag aaguuugugc agaggaacuc 7080
cuguuuauaa aaccaccaga ucucaugaga cuuacucacu accaggagaa caggaugcgg 7140
gaaaccaccu cggugauuca guuaucugca ccuggcccca cccuugacac auguugauua 7200
uuacaauuca aggugagauu uggguaggua cacagccaaa ccauaucagc ugcccauucu 7260
ccugugcagu gacauaaagg ucugauaacc ugauuuaaag cuuggacucu aagauuuuuu 7320
uuuuucuuuu uuugagucag guuaucucug ucgcucaagc uggaguucag uggcaugaac 7380
agggcucauu gcagccucaa ccuuccaggu ucaagugauu cucuugccuc aaccuccuga 7440
guaucugggg cuacaggcau gugccaccgu gccaggcuaa uauuuuuauu uuuauuuuug 7500
uaaagauggg gucucacuuc ugggcucaag caaucuuucc ucagccuccc aaagugcugg 7560
gauuauaggu gcgagccacu gcacccugcu guaaagaauu ucauaucccu guuuucggug 7620
ugcuguguca cuguuugcca uggguaaagg uauaugaauc ucuuuuauuu ugcugcuugc 7680
aacccaauuc ccaugccaaa cccaauuugu auccaaacaa acaauauugg agacaaguuc 7740
uucuauagaa agcuucauaa gccaguuacu gacuacugug ucuguaaaua uacucaaacu 7800
auuuuguagu cuugcuauuu uaaaaaaugu gugggugugg gaagugaugu ugaaugaauu 7860
caggguaauu ggugguucuu uguauuagga aaacucacua guuaagggaa gucuguuuuc 7920
augauucaug uauguuuaac uuaaaaaaaa auucuuccau ccuucucucc aguuuccacu 7980
cuaccucaua aauucaagua augaaggaau uuaaauaaua gaauuuuaua acugaaagga 8040
uuuuggagag aaucuauuaa cccuccuacu acaguugagg aaauagaugu ccagugaggu 8100
caaaugagau cauguagcua guuuaaaaac ccaaauaaca uuuuaguagu uuguuuccau 8160
uaguaaacac uguucuguuu gauuugcccu aacauguuca uaaucagagu cauaauaagg 8220
aaaaaucacu aauaugugug ugguacuuuc uugugcauac cucagucacu ucucaaaaga 8280
ggucuguaag gugucgguau ccugguuucc auucagggag agaacagucu augagccuaa 8340
gagaccuguc ugugccaguc acuaucagaa cagucuaaug cuaugugucu uccuaccuug 8400
gcaaaagcau uggcuggucu cuggacaguu cucauagacc acaggauugg gcagggggga 8460
gccacaucuu cauguuaggg cucuaaccug uaccaauuau uaacuguugu cucuauuuca 8520
ucauuucuua aagggaaaaa aaagcacuuu uuaaagagca ugagauuuua aauuuuucaa 8580
aagaaggaug cuggaucauu auaaguaagg cauguuuuaa agaucuucuu aucaacagcu 8640
uaaaaauuag ccaguauaua cugaacaucc acuguauaaa aagcacauua uggggugcuc 8700
caguagguac agcagugauc gagacagaau cauagccuuc agggaagagg uauaugcaau 8760
guucucuccu uccaaagauu accuagauag agaacuguuc auaagaaaua ucuugguacu 8820
gucuacauua cucuugagau auaaaauaua uauuauuucu uacgucugaa augagucagu 8880
uguuucuaaa acaauuugua uuaaaguauu cacauuaaaa auuuguaaaa uacagaaaag 8940
uagagagaaa aaaucaugaa uuuuuaacau gguaaugauu auaucaguuu cguucuuggc 9000
guuucuuuaa cuugauggga uagcuaaugu uuuuugucau ugcauagcuu uguaaacuug 9060
uccuaaggau uauauaauuu cagcaugagu uaguuucuaa guaugucaga aaucuagcuu 9120
uuuuguggua auuguuguuu uacacaaaau gauuaauaaa agacucuaaa cuaaccuugg 9180
cuuuagaaau gcuuuuuaaa uuuuaaaaua gugaaugagu agcagauuac uuucuaguau 9240
uucuuuaagg ucaccaaaau cacuuaacuu gcuuaaaaua uugauggaaa uaucaacuac 9300
guacaguuga ccuaaauuag aaaugggugu uuuuuaaaua gugaaauuua uaaauauaau 9360
auguauauuu uaaaauacag uuuauauuau agaguuaugu uccucuguaa uaauuucucu 9420
uuacacugaa ucauguucag uuuuuauuau gcagauaauu uaaucuuaca gcuuugaucu 9480
uuuuuaaaaa auaaaacagc cauuuggagu cuaaa 9515
<210> 2
<211> 20
<212> DNA
<213> 内参基因GAPDH特异性PCR正向引物
<400> 2
accacagtcc atgccatcac 20
<210> 3
<211> 20
<212> DNA
<213> 内参基因GAPDH特异性PCR反向引物
<400> 3
tccaccaccc tgttgctgta 20
<210> 4
<211> 20
<212> DNA
<213> LINC00472正向引物
<400> 4
gcatctgtca acgctcctct 20
<210> 5
<211> 20
<212> DNA
<213> LINC00472反向引物
<400> 5
ccgcgttctt tgtgtgtctc 20
<210> 6
<211> 30
<212> DNA
<213> 原位杂交检测LINC00472探针1
<400> 6
caaaactagg attctgtctt tgaggcagac 30
<210> 7
<211> 30
<212> DNA
<213> 原位杂交检测LINC00472探针2
<400> 7
aagaatggaa gtgggaagag agaaagactt 30
<210> 8
<211> 30
<212> DNA
<213> 原位杂交检测LINC00472探针3
<400> 8
taattcaggg gtatccgtct tagtttaggc 30
<210> 9
<211> 30
<212> DNA
<213> GAPDH探针1
<400> 9
ccactttacc agagttaaaa gcagccctgg 30
<210> 10
<211> 30
<212> DNA
<213> GAPDH探针2
<400> 10
gtcagaggag accacctggt gctcagtgta 30
<210> 11
<211> 30
<212> DNA
<213> GAPDH探针3
<400> 11
cagtagaggc agggatgatg ttctggagag 30
Claims (7)
1.原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂的应用,其特征在于,所述的试剂用于制备口腔肿瘤辅助诊断或者疗效预测制剂;该长链非编码RNALINC00472的序列如SEQ NO:1所示。
2.根据权利要求1所述的应用,其特征在于,所述的口腔肿瘤辅助诊断或者疗效预测制剂是根据lncRNA LINC00472在口腔肿瘤中的表达情况来辅助诊断和疗效预测,口腔肿瘤患者的lncRNA LINC00472表达显著下调。
3.根据权利要求1或2所述的应用,其特征在于,所述的原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂包括以下用于原位杂交检测LINC00472表达的寡核苷酸探针中的一种或几种:
LINC00472探针1:5’-CAAAACTAGGATTCTGTCTTTGAGGCAGAC-3’
LINC00472探针2:5’-AAGAATGGAAGTGGGAAGAGAGAAAGACTT-3’
LINC00472探针3:5’-TAATTCAGGGGTATCCGTCTTAGTTTAGGC-3’。
4.根据权利要求3所述的应用,其特征在于,所述的原位杂交检测口腔肿瘤组织中长链非编码RNA LINC00472的试剂包括以下阳性对照探针中的一种或几种:
GAPDH探针1:5'-CCACTTTACCAGAGTTAAAAGCAGCCCTGG-3'
GAPDH探针2:5'-GTCAGAGGAGACCACCTGGTGCTCAGTGTA-3
GAPDH探针3:5’-CAGTAGAGGCAGGGATGATGTTCTGGAGAG-3'。
5.一种口腔肿瘤辅助诊断或者疗效预测用原位杂交检测试剂,包括用于原位杂交检测LINC00472表达的寡核苷酸探针。
6.根据权利要求5所述的口腔肿瘤辅助诊断或者疗效预测用原位杂交检测试剂,其特征在于,包括以下用于原位杂交检测LINC00472表达的寡核苷酸探针中的一种或几种:
LINC00472探针1:5’-CAAAACTAGGATTCTGTCTTTGAGGCAGAC-3’
LINC00472探针2:5’-AAGAATGGAAGTGGGAAGAGAGAAAGACTT-3’
LINC00472探针3:5’-TAATTCAGGGGTATCCGTCTTAGTTTAGGC-3’。
7.根据权利要求5或6所述的口腔肿瘤辅助诊断或者疗效预测用原位杂交检测试剂,还包括以下阳性对照探针中的一种或几种:
GAPDH探针1:5'-CCACTTTACCAGAGTTAAAAGCAGCCCTGG-3'
GAPDH探针2:5'-GTCAGAGGAGACCACCTGGTGCTCAGTGTA-3
GAPDH探针3:5’-CAGTAGAGGCAGGGATGATGTTCTGGAGAG-3'。
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