FISH技術(shù)檢測HTERC基因擴(kuò)增在宮頸癌早期篩查中的臨床意義研究
發(fā)布時(shí)間:2019-05-22 21:55
【摘要】:目的:應(yīng)用熒光原位雜交(fluorescence in situ hybridization, FISH)技術(shù)檢測人端粒酶mRNA基因(human telomerase mRNA component gene,hTERC)在宮頸癌前病變及宮頸癌各組中的表達(dá)情況,探討hTERC基因檢測在宮頸病變篩查中的臨床意義。 方法:隨機(jī)選擇2012年5月~2013年5月寧夏醫(yī)科大學(xué)總醫(yī)院婦科宮頸病變門診前來就診的來自寧夏周邊不同地區(qū)的240例患者為研究對(duì)象,所有患者均行薄層液基細(xì)胞學(xué)(thin-prep cytology test,TCT)檢查、高危型HPV(High Risk Human apillomavims,,HR-HPV)檢查和陰道鏡檢查,并在陰道鏡下取活檢,常規(guī)送組織病理學(xué)檢查,并用FISH技術(shù)檢測hTERC基因在以上患者中的擴(kuò)增情況。根據(jù)TCT結(jié)果分組:46例無上皮內(nèi)病變或無惡性病變(NILM),62例意義不明確的非典型鱗狀細(xì)胞(ASCUS),46例低度鱗狀上皮內(nèi)瘤變(LSIL),68例高度鱗狀上皮內(nèi)瘤變(HSIL),18例宮頸癌(Scc);154例HPV陽性,86例HPV陰性;根據(jù)組織病理學(xué)結(jié)果分為:56例宮頸炎組,70例CINⅠ組,86例CINⅡ/Ⅲ組,28例宮頸癌組。同時(shí)選取46例NILM組婦女為對(duì)照組,用FISH技術(shù)檢測hTERC基因在該組中的表達(dá)建立實(shí)驗(yàn)閾值。 結(jié)果:1.對(duì)照組實(shí)驗(yàn)閾值是8.7%,即對(duì)照組中每例患者發(fā)生hTERC基因擴(kuò)增的細(xì)胞數(shù)量不超過8.7%。 2.TCT分級(jí)與高危型HPV感染關(guān)系密切,高危型HPV的陽性表達(dá)率隨TCT分級(jí)的遞增顯著增加,且TCT結(jié)果非正常組中其檢出率高于細(xì)胞學(xué)陰性組(NILM),差異有統(tǒng)計(jì)學(xué)意義(P0.01)。 3. hTERC基因在細(xì)胞學(xué)分組的NILM、ASC-US、LSIL、HSIL和SCC組中的陽性表達(dá)率分別為8.7%、12.9%、30.4%、76.5%和100%。hTERC基因的擴(kuò)增隨病變程度的增加而增加,高度病變組基因擴(kuò)增明顯高于低度病變組(P<0.01),而高度病變組與宮頸癌組的差異無統(tǒng)計(jì)學(xué)意義(P>0.05),研究組與對(duì)照組hTERC基因陽性表達(dá)率差異有統(tǒng)計(jì)學(xué)意義(P<0.01)。 4. hTERC基因在HPV陽性組中的擴(kuò)增比為75.3%(116/154),而在86例HPV陰性病例中,其擴(kuò)增比例為25.5%(22/86)。兩者比較有顯著差異(P<0.01)。 5. hTERC基因在宮頸炎組、CINI組、CINII/III組和SCC組中陽性表達(dá)率分別為7.14%、37.14%、79.06%和100%。hTERC基因的陽性表達(dá)率隨病理學(xué)級(jí)別的升高顯著擴(kuò)增,有統(tǒng)計(jì)學(xué)意義(P<0.05),而且宮頸癌組hTERC基因的擴(kuò)增顯著高于CIN組,兩組比較有統(tǒng)計(jì)學(xué)差異(P<0.05)。 結(jié)論:1.FISH技術(shù)檢測hTERC基因擴(kuò)增可作為預(yù)測宮頸癌前病變進(jìn)程的指標(biāo)之一。 2.hTERC基因可作為宮頸癌前病變及宮頸癌篩查和早期診斷的分子生物學(xué)標(biāo)志物之一,成為TCT檢查和高危型HPV檢測的輔助手段。 3. hTERC基因隨組織病理學(xué)分級(jí)升高顯著擴(kuò)增,因此hTERC基因的陽性擴(kuò)增率可作為CIN進(jìn)一步惡性進(jìn)化的證據(jù)。
[Abstract]:Objective: to detect the expression of human telomerase mRNA gene (human telomerase mRNA component gene,hTERC in cervical precancerous lesions and cervical cancer groups by fluorescence in situ hybridization (fluorescence in situ hybridization, FISH). To explore the clinical significance of hTERC gene detection in cervical disease screening. Methods: from May 2012 to May 2013, 240 patients from different areas around Ningxia were randomly selected from the outpatient Department of Gynecological Cervical lesions of General Hospital of Ningxia Medical University. All patients were examined by thin layer liquid-based cytology (thin-prep cytology test,TCT), high-risk HPV (High Risk Human apillomavims,HR-HPV and colposcopy, and biopsies were taken under colposcopy. The amplification of hTERC gene in the above patients was detected by FISH. According to the results of TCT, 46 cases of (NILM), without intraepithelial lesions or no malignant lesions 62 cases of atypical squamous cell (ASCUS), with unclear significance, 46 cases of low grade squamous intraepithelial neoplastic (LSIL), 68 cases of high grade squamous intraepithelial neoplastic (HSIL), 18 cases of cervical cancer (Scc); According to the histopathological results, there were 56 cases of cervicitis group, 70 cases of CIN group 鈪
本文編號(hào):2483299
[Abstract]:Objective: to detect the expression of human telomerase mRNA gene (human telomerase mRNA component gene,hTERC in cervical precancerous lesions and cervical cancer groups by fluorescence in situ hybridization (fluorescence in situ hybridization, FISH). To explore the clinical significance of hTERC gene detection in cervical disease screening. Methods: from May 2012 to May 2013, 240 patients from different areas around Ningxia were randomly selected from the outpatient Department of Gynecological Cervical lesions of General Hospital of Ningxia Medical University. All patients were examined by thin layer liquid-based cytology (thin-prep cytology test,TCT), high-risk HPV (High Risk Human apillomavims,HR-HPV and colposcopy, and biopsies were taken under colposcopy. The amplification of hTERC gene in the above patients was detected by FISH. According to the results of TCT, 46 cases of (NILM), without intraepithelial lesions or no malignant lesions 62 cases of atypical squamous cell (ASCUS), with unclear significance, 46 cases of low grade squamous intraepithelial neoplastic (LSIL), 68 cases of high grade squamous intraepithelial neoplastic (HSIL), 18 cases of cervical cancer (Scc); According to the histopathological results, there were 56 cases of cervicitis group, 70 cases of CIN group 鈪
本文編號(hào):2483299
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