目的 探讨高危型人乳头瘤病毒(HR-HPV)DNA聚合酶链反应(PCR)联合液基薄层细胞学检查(TCT)对宫颈癌前病变筛查的应用与诊断价值。方法 对540例TCT结果为非典型鳞状上皮细胞(ASCUS)及以上的患者进行HR-HPV DNA PCR检测,并对检测结果进行分析。结果 TCT阳性合并HPV阳性患者共259例,其中ASCUS、低度鳞状上皮内病变(LSIL)、高度鳞状上皮内病变(HSIL)、鳞状细胞癌(SCC)的例数(阳性率)分别为155例(59.8%)、81例(31.3%)、15例(5.8%)、8例(3.1%);259例患者中ASCUS、LSIL、HSIL、SCC合并HR-HPV的阳性例数(阳性率) 分别为28例(18.1%)、20例(24.7%)、10例(66.7%)、8例(100.0%)。HR-HPV和TCT单独检测的敏感性与两者联合检测的敏感性比较,差异具有统计学意义(P<0.05)。HR-HPV、TCT及两者联合检测的阳性预测值分别为25.5%、11.1%、28.2%,阴性预测值分别为68.8%、59.2%、40.8%。结论 TCT与HR-HPV DNA PCR检测是筛查宫颈病变的有效方法,能最大程度地发现宫颈异常细胞并及时发现宫颈癌的诱因。
The significance of TCT combined with HR-HPV DNA PCR determination for the diagnosis of precancerous lesions
CHEN Yantian, CHEN Qinglong, XIONG Yan, SU Xuetang, HUANG Weigang, SHI Sheng, GUO Yihua, CHEN Rongce
Department of Clinical Laboratory, Jiangmen People's Hospital, Guangdong Jiangmen 529020,China
Abstract
Objective To investigate the application and significance of high risk human papilloma virus(HR-HPV) DNA polymerase chain reaction (PCR) combined thinprep cytology test(TCT) determination for the diagnosis of precancerous lesions. Methods A total of 540 patients undergoing TCT determination and showing positive atypical squamous cells of undetermined significance(ASCUS) and above were enrolled and performed HR-HPV DNA PCR, and the results were analyzed. Results The number of TCT positive combined HPV positive was 259 cases,including ASCUS 155 cases (59.8%),low-grade squamous intraepithelial lesion(LSIL) 81 cases(31.3%),high-grade squamous intraepithelial lesion (HSIL) 15 cases (5.8%) and squamous cell carcinoma (SCC) 8 cases (3.1%). In the 259 cases, the positive rates of ASCUS,LSIL,HSIL and SCC were 18.1% (28 cases), 24.7%(20 cases), 66.7%(10 cases) and 100.0%(8 cases), respectively. The sensitivity of the combination determination of the 2 methods was higher than the sensitivities of HR-HPV determination and TCT determination with statistical significance (P<0.05).The positive predictive values of HR-HPV determination,TCT determination and the combination determination of the 2 methods were 25.5%,11.1% and 28.2%,respectively, and the negative predictive values were 68.8%, 59.2% and 40.8%,respectively. Conclusions TCT combined with HR-HPV DNA PCR in the diagnosis of precancerous lesions is an effective method. It is an approach for the diagnosis of early cervical cancer and precancerous lesions.
Keyword:
Polymerase chain reaction; Thinprep cytology test; High risk human papilloma virus; Cervical cancer; Diagnosis
LinM, YangLY, LiLJ, et al. Genital human papillomavirus screening by gene chip in Chinese women of Guangdong province[J]. Aust N Z J Obstet Gynaecol, 2008, 48(2): 189-194. [本文引用:1]
[3]
SongSH, LeeJK, SeokOS, et al. The relationship between cytokines and HPV-16, HPV-16 E6, E7, and high-risk HPV viral load in the uterine cervix[J]. Gynecol Oncol, 2007, 104(3): 732-738. [本文引用:1][JCR: 3.929]
EllK, VourlekisB, XieB, et al. Cancer treatment adherence among low-income women with breast or gynecologic cancer: a rand omized controlled trial of patient navigation[J]. Cancer, 2009, 115(19): 4606-4615. [本文引用:1][JCR: 5.201]
[8]
PatilJB, KimJ, JayaprakashaGK. Berberine induces apoptosis in breast cancer cells (MCF-7) through mitochondrial-dependent pathway[J]. Eur J Pharmacol, 2010, 645(1-3): 70-78. [本文引用:1][JCR: 2.592]
[9]
CastellsaguéX, DrudisT, CañadasMP, et al. Human papillomavirus (HPV) infection in pregnant women and mother-to-child transmission of genital HPV geno-types: a prospective study in Spain[J]. BMC Infect Dis, 2009, 9: 74. [本文引用:1][JCR: 3.025]
<ul><li id="af0005"><sup>a</sup><span id="">Vegetable and Fruit Improvement Center, Department of Horticulture Sciences, Texas A&M University, College Station, TX 77845-2119, USA</span></li><li id="af0010"><sup>b</sup><span id="">College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712, USA</span></li></ul>
Bioactive compounds found in many plant species have been used in Chinese, Unani, and Indian ayurvedic medicine. Accumulative evidences in both in vitro and in vivo studies using berberine demonstrated anti-cancer and anti-inflammatory properties in different cancer cells. In the present study, a putative compound from commercial sample was purified by chromatographic techniques. The structure of the pure compound was confirmed by spectroscopic studies. The purified berberine was tested against breast cancer (MCF-7) and normal human breast epithelial (MCF-12F) cells for 24, 48 and 72 h at various concentrations. Using MTT assay, berberine exhibited a significant cytotoxic effect on the MCF-7 cells (P < 0.01) without affecting the breast normal epithelial cell growth at 25 μM concentration. Based on these results, MCF-7 cells were treated with 25 μM berberine for 48 and 72 h for further studies to illustrate induction of apoptosis through cell cycle distribution and DNA fragmentation with agarose gel electrophoresis. Western blotting with treated cells revealed that berberine induces apoptosis in MCF-7 cells through a mitochondria-dependent pathway by increasing levels of cytoplasmic cytochrome c, caspase-9 activity and cleavage of PARP while decreasing levels of Bcl-2. Furthermore, immunoblotting results demonstrated that p53 and p27 were up-regulated suggesting that barberine seems to play a pro-apoptotic role in cancer cells. In conclusion, berberine inhibits the proliferation of MCF-7 breast cancer cells through a mitochondria and caspase dependent apoptotic pathway. It is possible that berberine may serve as a potential naturally occurring compound for breast cancer therapy.