口腔鳞癌组织中肿瘤转移相关基因1（MTA1）一、选择原因及应用口腔鳞癌组织中肿瘤转移相关基因1（MTA1）在蛋白和mRNA的表达水平，揭示其与口腔鳞癌（OSCC）发生、发展的关系。

方法采用免疫组织化学法和原位杂交技术检测46例OSCC标本、15例口腔黏膜白斑与20例正常口腔黏膜标本中MTAl 基因的表达水平，并分析其与OSCC临床病理学参数的关系。

结果MTA1蛋白和MTA1mRNA在OSCC组织中的表达水平显著高于口腔黏膜白斑和正常口腔黏膜（P 〈0．05），口腔黏膜白斑中MTA1蛋白和MTA1mRNA表达水平显著高于口腔正常黏膜（P〈0．01），MTA1蛋白和MTA1mRNA表达与肿瘤浸润深度和淋巴结转移密切相关（P〈0．05）。

结论MTA1基因在蛋白和mRNA的表达水平在OSCC发生、发展及浸润转移过程中起一定促进作用，有望成为判断OSCC预后及选择治疗方案的一个新肿瘤标志物。

二、2查阅NCBI得到MTA1相关信息并获得目的基因PREDICTED: Gorilla gorilla gorilla metastasis associated 1 (MTA1), mRNANCBI Reference Sequence: XM_004055801.1FASTA GraphicsLOCUS XM_004055801 2872 bp mRNA linear PRI 03-DEC-2012DEFINITION PREDICTED: Gorilla gorilla gorilla metastasis associated 1 (MTA1),mRNA.ACCESSION XM_004055801VERSION XM_004055801.1 GI:426378238KEYWORDS .SOURCE Gorilla gorilla gorilla (western lowland gorilla) ORGANISM Gorilla gorilla gorillaEukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;Catarrhini; Hominidae; Gorilla.COMMENT MODEL REFSEQ: This record is predicted by automated computationalanalysis. This record is derived from a genomic sequence(NW_004005914) annotated using gene prediction method: GNOMON,supported by mRNA and EST evidence.Also see:Documentation of NCBI's Annotation Process##Genome-Annotation-Data-START##Annotation Provider :: NCBIAnnotation Status :: Full annotationAnnotation Version :: Gorilla gorilla Annotation Release 100Annotation Pipeline :: NCBI eukaryotic genome annotation pipelineAnnotation Method :: Best-placed RefSeq; Gnomon Features Annotated :: Gene; mRNA; CDS; ncRNA##Genome-Annotation-Data-END##FEATURES Location/Qualifierssource 1..2872/organism="Gorilla gorilla gorilla"/mol_type="mRNA"/sub_species="gorilla"/db_xref="taxon:9595"/chromosome="14"gene 1..2872/gene="MTA1"/note="Derived by automated computational analysis usinggene prediction method: GNOMON. Supporting evidence/codon_start=1/product="metastasis-associated protein MTA1"/protein_id="XP_004055849.1"/db_xref="GI:426378239"/db_xref="GeneID:101134898"/translation="MAANMYRVGDYVYFENSSSNPYLIRRIEELNKTANGNVEAKVVC FYRRRDISSTLIALADKHATLSVCYKAGPGADNGEEGEIEEEMENPEMVDLPEKLKHQ LRHRELFLSRQLESLPATHIRGKCSVTLLNETESLKSYLEREDFFFYSLVYDPQQKTL LADKGEIRVGNRYQADITDLLKEGEEDGRDQSKLETKVWEAHNPLTDKQIDQFLVVAR SVGTFARALDCSSSVRQPSLHMSAAAASRDITLFHAMDTLHKNIYDISKAISALVPQG GPVLCRDEMEEWSASEANLFEEALEKYGKDFTDIQQDFLPWKSLTSIIEYYYMWKTTD RYVQQKRLKAAEAESKLKQVYIPNYNKPNPNQISVNNVKAGVVNGTGAPGQSPGAGRA CESCYTTQSYQWYSWGPPNMQCRLCASCWTYWKKYGGLKMPTRLDGERPGPNRSNMSP HGLPARSSGSPKFAMKTRQAFYLHTTKLTRIARRLCREILRPWHAARHPYLPINSAAI KAECTARLPEASQSPLVLKQAVRKPLEAVLRYLETHPRPPKPDPVKSVSSVLSSLTPA KVAPVINNGSPTILGKRSYEQHNGVDGNMKKRLLMPSRGLANHGQTRHMGPSRNLLLN GKSYPTKVRLIRGGSLPPVKRRRMNWIDAPDDVFYMATEETRKIRKLLSSSETKRAAR RPYKPIALRQSQALPLRPPPPAPVNDEPIVIED" ORIGIN1 tcctcctctt cctctcccgc ccgcgccgcg gccctcccgt ccctgcgcgg cctcggcggc61 ctcggcggcg gcggcggcgg cggcggcagc agcgcggccc ctttaaacgc ctgcggcgccgcgccgagcg ccgcgcccgcaacatgtaca gggtcggaga241 ctacgtctac tttgagaact cctccagcaa cccatacctg atccggagga tcgaggagct301 caacaagacg gccaatggga acgtggaggc caaagtggtg tgcttctacc ggaggcggga361 catctccagc accctcatcg ccctggccga caagcacgca accctgtcag tctgctataa421 ggccggaccg ggggcggaca acggcgagga aggggaaata gaagaggaaa tggagaatcc481 ggaaatggtg gacctgcccg agaaactaaa gcaccagctg cggcatcggg agctgttcct541 ctcccggcag ctggagtctc tgcccgccac gcacatcagg ggcaagtgca gcgtcaccct601 gctcaacgag accgagtcgc tcaagtccta cctggagcgg gaggatttct tcttctattc661 tctagtctac gacccacagc agaagaccct gctggcagat aaaggagaga ttcgagtagg721 aaaccggtac caggcagaca tcaccgactt gttaaaagaa ggcgaggagg atggccgaga781 ccagtccaag ttggagacca aggtgtggga ggcgcacaac ccactcacag acaagcagat841 cgaccagttc ctggtggtgg cccgctctgt gggcaccttc gcacgggccc tggactgcag901 cagctccgtc cgacagccca gcctgcacat gagcgccgca gctgcctccc gagacatcac961 gctgttccac gccatggata ctctccacaa gaacatctat gacatctcca aggccatctc1021 ggcactggtg ccgcagggcg ggcccgtgct ctgcagggac gagatggagg agtggtctgc1081 atcagaggcc aaccttttcg aggaagccct ggaaaaatat gggaaggatt tcacggacat1141 tcagcaagat tttctcccgt ggaagtcgct gaccagcatc attgagtact actacatgtg1201 gaagaccacc gacagatacg tgcagcagaa acgcttgaaa gcagctgaag ctgagagcaa1261 gttaaagcaa gtttatattc ccaactataa caagccaaat ccgaaccaaa tcagtgtcaa1321 caacgtcaag gccggtgtgg tgaatggcac gggggcgccg ggccagagcc ctggggctgg1381 ccgggcctgc gagagctgtt acaccacaca gtcttaccag tggtattctt ggggtccccc1441 taacatgcag tgtcgtctct gcgcatcttg ttggacatat tggaagaaat atggtggctt1501 gaaaatgcca acccggttag atggagagag gccaggacca aaccgcagta acatgagtcc1561 ccacggcctc ccagcccgga gcagcgggag ccccaagttt gccatgaaga ccaggcaggc1621 tttctatctg cacacgacga agctgacgcg gatcgcccgg cgcctgtgcc gtgagatcct1681 gcgcccgtgg cacgctgcgc ggcaccccta cctgcccatc aacagtgcgg ccatcaaggc1741 cgagtgcacg gcgcggctgc ccgaagcctc ccagagcccg ctggtgctga agcaggcggt1801 acgcaagccg ctggaagccg tgcttcggta tcttgagacc cacccccgtc cccccaagcc1861 tgaccccgtg aaaagcgtgt ccagcgtgct cagcagcctg acgcccgcca aggtggcccc1921 cgtcatcaac aacggctccc ccaccatcct gggcaagcgc agctacgagc agcacaacgg1981 ggtggacggc aacatgaaga agcgcctctt gatgcccagt aggggtctgg caaaccacgg2041 acagaccagg cacatgggac caagccggaa cctcctgctc aacgggaagt cctaccccac2101 caaagtgcgc ctgatccggg ggggctccct gcccccagtc aagcggcggc ggatgaactg2161 gatcgacgcc ccggatgacg tgttctacat ggccacagag gagaccagga agatccgcaa2221 gctgctctca tcctcggaaa ccaagcgtgc tgcccgccgg ccctacaagc ccatcgccctgcgcccgtca acgacgagccgccccccgcc cctcgcccgc2401 ccacacggcc ccttcccagc cagcccgccg cccgcccctc agtttggtag tgccccacct2461 cccgccctca cctgcagaga aacgcgctcc ttggcggaca ctgagggagg agaggaagaa2521 gcgcggctaa cttattccga gaatgccgag gagttgtcgt ttttagcttt gtgtttactt2581 tttggctgga gcggagatga ggggccaccc cgtgcccctg tgctgcgggg ccttttgccc2641 ggaggccggg ccctaaggtt ttgttgtgtt ctgttgaagg tgccgtttta aattttattt2701 ttattacttt ttttgtagat gaacttgagc tctgtaactt acacctggaa tgttaggatc2761 gtgcggccgc ggccggccga gctgcctggc ggggttggcc cttgtctttt caagtaattt2821 tcatattaaa caaaaacaaa gaaaaaaatc ttataaaaag gaaaaaaacc aa//三、表达载体的选择我所选用的原核表达载体为质粒pBR322；pBR322 是一种常用的E. coli 克隆载体（1），为4,361 bp 的环状双链DNA（2）。