CD44v6与MMP—9在口腔鳞癌中的表达意义

目的：探讨细胞粘附分子CD44v6和基质金属蛋白酶MMP－9相互关系及其在评估口腔鳞癌的组织学分级,肿瘤浸润以及转移等生物学特性中的意义。方法：运用免疫组化S－P法测定22例口腔鳞癌和6例正常口腔黏膜组织中CD44v6和MMP－9的表达,结果：CD44v6在正常口腔黏膜组织呈强阳性表达;癌组织中CDv6的表达明显弱于正常组织,高表达CD44v6的口腔鳞癌不仅分化程度较差而且易发生淋巴结转移,MMP－9在正常口腔黏膜组织中呈阴性或弱阳性表达,癌组织中MMP－9的阳性表达高达68．2％（15／22）。MMP－9的表达与病理分级和颈淋巴结转移呈正相关（P＜0．05）,口腔鳞癌中MMP－9与CD44v6的表达呈正相关（P＜0．01）,多因素分析示两者之间的交互作用是影响口腔鳞癌病理分化和颈淋巴结转移的最重要因素。结论：口腔鳞癌中CD44v6与MMP－9的表达密切相关。MMP－9和CD44v6可作为临床上评估口腔鳞癌浸润,转移以及预后的指标。     

结直肠癌CD44V6、E-cadherin和VEGF的表达及其意义

目的：探讨结直肠癌CD44V6、E-cadherin和VEGF的表达及其临床意义。方法：应用免疫组化S－P法检测46例结直肠癌CD44V6、E-cadherin和VEGF的表达，并分析其与结直肠癌临床病理特征的关系。同时检测了23例淋巴结转移灶CD44V6、E-cadherin和VEGF的表达。结果：结直肠癌组织中CD44V6、E-cadherin和VEGF阳性表达率分别为50．0％、56．5％、和50．0％；原发灶CCD4V6和VEGF阳性表达率低于淋巴结转移灶（60．9％和56．％），而原发灶E-cadherin阳性表达率则高于淋巴结转移灶（43．5％）。结直肠癌CDV46和VEGF阳性表达与淋巴结转移，局部浸润深度和Dukes分期等有关。E-cadherin阳性表达与结直肠癌临床病理特征无关。结论：CD44V6和VEGF是结直肠癌发生与发展重要的促进因子，其过度表达与结直肠癌浸润转移，病理分期有关，可作为预测结直肠癌预后的生物学指标之一。     

食管鳞癌中CD44v4/5、MMP-10的表达与淋巴结转移的关系

目的研究食管鳞癌中CD44v4/5、MMP-10的表达与浸润转移的关系。方法用免疫组化S-P法检测了73例食管鳞癌中CD44v4/5、MMP-10的表达。结果CD44v4/5在淋巴结转移组的阳性表达率为64.6%（31/48）,而在非转移组的阳性表达率为32.0%（8/25）,两组之间差异显著（P〈0.05）。MMP-10在淋巴结转移组的阳性表达率为79.2%（38/48）,而在非转移组阳性表达率为40.0%（10/25）,两组之间亦具有显著差异（P〈0.05）。结论CD44v4/5和MMP-10的表达均与食管鳞癌浸润密切相关。     

食管鳞癌中VEGF-C与CD44v6的表达及其与淋巴结转移的关系

目的研究食管鳞癌组织中血管内皮细胞生长因子-C(VEGF-C)与CD44v6的表达及其与淋巴结转移的关系。方法应用免疫组织化学方法对152例食管鳞癌组织进行VEGF-C与CD44v6蛋白检测结果VEGF-C与CD44v6蛋白在食管鳞癌的阳性表达为55.3%和71.7%,VEGF-C与CD44v6的表达与食管癌有无转移有显著差异(P<0.05)。结论VEGF-C与CD44v6与食管鳞癌淋巴结转移密切相关,可作为判断食管鳞癌预后的指标。     

临床喉鳞癌组织标本中G3BP和CD44v6的检测及意义北大核心CSCD

目的研究RNA结合的Ras-GAP酶激活蛋白SH3结合蛋白(G3BP)、肿瘤干细胞标志物CD44v6蛋白与喉鳞状细胞癌(喉鳞癌)发生发展的关系,探讨G3BP、CD44v6蛋白与血管新生的相关性。方法收集56例喉鳞癌患者癌组织及对应癌旁组织,采用Western blot法检测喉鳞癌患者癌组织及对应癌旁组织中G3BP、CD44v6蛋白水平,使用免疫组织化学染色法分别检测G3BP、CD44v6、血管内皮生长因子A(VEGF-A)的表达,并分析G3BP、CD44v6表达与喉鳞癌患者临床病理特征的关系及与VEGF-A表达的相关性;采用Ⅷ因子相关抗原(FⅧAg)免疫组织化学染色确定微血管密度(MVD),观察G3BP、CD44v6表达与MVD之间的关系。结果喉鳞癌患者癌组织中G3BP蛋白、CD44v6蛋白水平均明显高于对应癌旁的正常组织。喉鳞癌患者癌组织中的G3BP、CD44v6、VEGF-A表达阳性率分别为58.9%、53.6%、46.4%,均明显高于对应的癌旁正常组织。喉鳞癌患者癌组织中G3BP、CD44v6蛋白表达阳性率与临床分期、复发或转移及淋巴结转移相关,但与年龄和肿瘤大小无关。经Pearson相关性分析,喉鳞癌患者癌组织中G3BP、CD44v6蛋白的表达与VEGF-A表达呈正相关(r=0.741,r=0.756);喉鳞癌患者癌组织中G3BP与CD44v6蛋白阳性表达病例的MVD值均明显高于癌旁正常组织中MVD值;癌组织中G3BP与CD44v6蛋白阴性表达病例MVD值与癌旁正常组织中MVD值比较无明显差异。结论喉鳞癌组织G3BP、CD44v6蛋白高表达,可能通过促进VEGF-A的表达来诱发肿瘤微血管的新生,促进喉鳞癌侵袭、转移。     

肺癌组织中MDR1mRNA、nm23H1mRNA、P—gp和CD446v6的表达及其相关性

目的：探讨肺癌组织中MDR1mRNA、nm23H1mRNA、P-gp和CD446v6的表达及其与淋巴结转移、病理分型的相关性。方法：应用原位杂交（ISH）CSA法和免疫组化EnVision法检测60例人原发性肺癌组织MDR1mRNA、nm23H1mRNA、P-gp和CD446v6的表达。结果：MDR1mRNA、nm23H1mRNA、P-gp混合单抗和CD44v6的阳性率分别为46．67％（28／60）、53．33％（32／60）、51．67％（31／60）和63．33％（38／60）。不同克隆P-gp阳性率分别为JSB－1 33．33％（20／60）,C219 31．70％（19／60）和C494 16．70％（10／60）。nm23H1mRNA与肺癌的第一站和第二站淋巴结转移呈负相关（P＜0．01,P＜0．05）,而CD44v6呈正相关（P＜0．01,P＜0．1）。MDR1mRNA和P-gp与CD44v6的阳性表达关系密切（P＜0．01,P＜0．06）,而CD44v6吴正相关（P＜0．01,P＜0．01）。MDR1mRNA、nm23H1mRNA、P-gp和CD446v6的阳性表达关系密切（P＜0．01）,并与肺癌患者吸烟关系密切（P＜0．01）。MDR1mRNA、nm23H1mRNA和P-gp的阳性符合率为80．64％（25／31）。结论：IHC方法检测P=pg能间接反映MDR1mRNA的转录水平,为准确评估肺癌病人对化疗的疗效提供一种有效手段,MDR的表达与病人吸烟关系密切。     

非小细胞肺癌中CD44v6的表达

目的　探讨CD4 4v6表达与非小细胞肺癌临床病理特征之间的关系。方法　采用免疫组化S P法检测 132例非小细胞肺癌、6 6例淋巴结转移癌和 115例正常肺组织CD4 4v6表达的情况。结果　非小细胞肺癌CD4 4v6阳性表达率为4 8 4 8% ,高于正常肺组织 17 39%的阳性表达率。CD4 4v6阳性表达与淋巴结转移状况、TNM分期、肿瘤大小和组织学类型有相关性。非小细胞肺癌淋巴结转移组、TNMⅢ期患者、直径 >3cm的肿瘤和鳞癌CD4 4v6阳性表达率分别高于无淋巴结转移组、TNMⅠ期和Ⅱ期患者、直径≤ 3cm的肿瘤和腺癌。淋巴结转移癌CD4 4v6阳性表达率高于肺原发癌。CD4 4v6阳性表达与患者的性别、年龄和组织学分级无相关性。结论　CD4 4v6阳性表达预示非小细胞肺癌具有较强的侵袭和转移能力 ,可作为一项预测非小细胞肺癌转移潜能生物学指标。     

食管癌组织中多药耐药相关蛋白和CD44v6的表达

目的　探讨多药耐药相关蛋白 (multidrugresistance associatedprotein ,MRP)和CD44v6在食管癌组织中表达的意义 ,以及两者之间的关系。方法　采用免疫组织化学S P法检测 74例食管癌组织中MRP和CD44v6的蛋白表达。结果　MRP和CD44v6在食管癌组织中的阳性表达率分别为 5 1 4 %和 83 8%,食管癌中MRP的表达与肿瘤的浸润深度和淋巴结转移呈正相关 (P <0 0 5 ) ,而与肿瘤的分化程度无关 (P >0 0 5 )。CD44v6在食管癌中的表达与肿瘤的浸润深度和淋巴结转移密切相关 (P <0 0 5 ) ,而与肿瘤的分化程度无关 (P >0 0 5 )。CD44v6在MRP阳性食管癌中的表达明显高于其在MRP阴性食管癌中的表达 (P <0 0 5 )。结论　肿瘤多药耐药可能与肿瘤转移有关 ,检测食管癌中MRP和CD44v6的表达可能反映肿瘤细胞的生物学行为。     

CD44v4在乳腺浸润性导管癌中的表达及 其与浸润转移的关系

目的 探讨CD44v4在浸润性乳腺导管癌中的表达及其与浸润转移的关系。方法 选取2011年1月~2018年3月我院收治的乳腺浸润性导管癌185例设为观察组,另选取同期收治的乳腺良性疾病患者60例设为对照组,采用免疫组化法检测两组CD44v4的表达情况,并比较观察组CD44v4表达及临床病理因素情况。结果 观察组CD44v4阳性表达率为60.54%,高于对照组的5.00%,差异有统计学意义（P＜0.05）。CD44v4表达在不同年龄、绝经前后月经状况、原发瘤大小间比较,差异无统计学意义（P＞0.05）;不同TNM分期、组织学分级、淋巴结转移患者的CD44v4表达比较,差异有统计学意义（P＜0.05）。结论 CD44v4蛋白在乳腺浸润性导管癌患者中为高表达,检测其表达可作为判断肿瘤预后的新指标。     

CD44和NANOG在上皮性卵巢癌中的表达及其临床意义

目的:探讨上皮性卵巢癌(epithelial ovarian cancer,EOC)中CD44及转录因子NANOG的表达及其临床意义。方法:用免疫组织化学法检测良性卵巢肿瘤和EOC组织中CD44及NANOG的表达,并对EOC中CD44和NANOG的表达水平做相关性分析。Western blot法检测不同浓度顺铂对卵巢癌SKOV3细胞中CD44及NANOG蛋白表达水平的影响。结果:CD44和NANOG在EOC中的阳性表达率均明显高于良性卵巢肿瘤组织(P0.01);EOC中CD44与NANOG的表达水平呈正相关(r=0.346,P0.01)。CD44在EOC中的阳性表达率与临床分期和淋巴结转移有关(P0.05),而与年龄、病理分级、病理类型和肿瘤位置无关;NANOG在EOC中的阳性表达率与病理分级和临床分期有关(P0.05),而与年龄、病理类型、淋巴结转移和肿瘤位置无关。顺铂可诱导卵巢癌SKOV3细胞中CD44和NANOG表达上调(P0.05)。结论:CD44和NANOG在EOC中高表达,且与EOC发生和发展有关。顺铂可诱导卵巢癌SKOV3细胞中肿瘤干细胞标记物CD44及胚胎干细胞多能性基因产物NANOG表达升高。肿瘤干细胞的产生可能是促进EOC发生、发展及化疗耐药的潜在机制。     

CD44和CD44v6基因在胃腺癌组织中的表达及其意义

目的： 研究胃腺癌组织中ＣＤ４４ 的表达及其与淋巴结转移和预后的关系。方法： 应用免疫组化方法, 对１０５ 例胃腺癌组织中ＣＤ４４ 的表达进行了观察, 并对其中６２ 例患者做了随访。结果： ＣＤ４４ 和ＣＤ４４ｖ６ 基因的表达率分别为５４－３ ％ 和４８－６ ％ 。ＣＤ４４ｖ６ 在胃腺癌组织中的表达与癌细胞的分化、浸润深度, 以及临床分期和预后有关（Ｐ＜ ０－０５）, 而ＣＤ４４ 的表达则与上述临床病理指标无关。另外, 抗ＣＤ４４ 和抗ＣＤ４４ｖ６ 抗体的阳性反应, 与癌细胞的淋巴结转移有关（ＣＤ４４ｖ６, Ｐ＜ ０－０１ ; ＣＤ４４ , Ｐ＜ ０－０５） 。结论： ＣＤ４４ 的表达可用于胃癌患者的病情监测, 其中ＣＤ４４ｖ６ 有望作为判断预后的一个指标。     

CD44v6 expression in patients with stage II or stage III sporadic colorectal cancer is superior to CD44 expression for predicting progression

Background: Currently, it is difficult to predict the prognosis of patients exhibiting stage II or stage III colorectal cancer (CRC) and to identify those patients most likely to benefit from aggressive treatment. The current study was performed to examine the clinicopathological significance of CD44 and CD44v6 protein expression in these patients. Study design: We retrospectively investigated 187 consecutive patients who underwent surgery with curative intent for stage II to III CRC from 2007 to 2013 in the Beijing Civil Aviation Hospital. CD44 and CD44v6 protein expression levels were determined using immunohistochemistry and compared to the clinicopathological data. Results: Using immunohistochemical detection, CD44 expression was observed in 108 (57.75%) of the CRC patients; and its detection was significantly associated with greater invasion depth, lymph node metastasis, angiolymphatic invasion, and a more advanced pathological tumor-lymph node-metastasis (TNM) stage. CD44v6 expression was observed in 135 (72.19%) of the CRC patients; and its expression was significantly associated with a poorly differentiated histology, greater invasion depth, lymph node metastasis, angiolymphatic invasion, and a more advanced pathological TNM stage. Expression of CD44v6 was higher than that of CD44 in stage II and stage III sporadic CRC. Conclusion: CD44v6 is a more useful marker for predicting a poor prognosis in stage II and stage III sporadic CRC as compared to CD44.     

Correlation between E-cadherin and CD44 adhesion molecules expression and cervical lymph node metastasis in oral tongue SCC: Predictive significance or not

The aim of this article was to evaluate the expression of E-cadherin and CD44 adhesion molecule in oral tongue squamous cell carcinoma (SCC) since inappropriate expression of adhesion molecules raises the metastatic ability of the tumor cells.Biopsy specimens from 92 patients with tongue SCC were examined for the expression of E-cadherin and CD44 by immunohistochemistry. The relationship of immunoreactivity with tumor stage and cervical lymph node metastasis was then analyzed.Sixty-one patients (66.3%) had reduced or negative staining for CD44. Weak or absent staining for E-cadherin was seen in 14 patients (15.21%). Cervical lymph node metastasis is associated with decreased or negative staining for CD44, but no association was found between E-cadherin immunoreactivity and nodal metastasis.Our study reveals that reduced expression of CD44 could be an indicator of high invasiveness of tumor by increasing cervical lymph node metastasis.     

宫颈癌组织中survivin和CD44v6的表达及其与HPV16/18感染的相关性

目的研究survivin、CD44v6在宫颈癌组织中的表达及其与HPV16/18感染的相关性,以探讨宫颈癌的发生机制。方法用免疫组化方法进行survivin和CD44v6的检测,用PCR检测HPV16/18感染情况。结果survivin和CD44v6的阳性率在宫颈癌组织中远高于CIN和正常宫颈组织,差异显著(均P<0.01),其表达率与淋巴结转移有关(均P<0.05)。CD44v6随着临床分期、病例分级的升高阳性率升高(P<0.05),survivin的阳性率则随着病例分级的升高而增加(P<0.05)。HPV16/18在正常宫颈组织、CIN和宫颈癌中的阳性率逐渐升高(P<0.01),但与临床分期、病理分级、淋巴转移无关。survivin与HPV16/18感染有相关性(P<0.05)。结论宫颈癌组织中survivin的异常表达与HPV16/18感染有关。survivin和CD44v6与宫颈癌的恶变程度有关,可作为宫颈癌筛查预后判断的有利指标。     

CD44s and CD44v6 in diagnosis and prognosis of human bladder cancer

The cell adhesion molecules (CAMs) CD44 standard (CD44s) and its variant 6 (CD44v6) are involved in the progression and invasion of human malignancies. However, discrepancies in the prognostic value of CD44s and CD44v6 expression need to be addressed. Aims: To investigate the expression of CD44s and CD44v6 in bladder carcinomas and relate the results to the established prognostic factors. Materials and Methods: 50 bladder carcinoma specimens, 30 cases with transitional cell carcinoma (TCC: 6 bilharzial and 24 nonbilharzial) and 20 cases with squamous cell carcinoma (SCC: 8 bilharzial and 12 nonbilharzial), were included. Immunohistochemical analysis for CD44s and CD44v6 was carried out using avidin-biotin peroxidase method. Results: The level of both CD44s and CD44v6 in TCC was significantly higher in invasive than in preinvasive tumors and normal urothelium (p < .05). A direct association between the percentage of expression of both markers and the grade of TCC (p < .05) was observed. An inverse correlation between CD44s and SCC was seen, where metaplastic urothelium showed higher expression than invasive carcinomas. No association was observed between the expressions of both CD44s and CD44v6 and bilharzial ova, sex and age of the patient, or size of the tumor. Conclusions: The authors report statistically significant correlation between CD44s and CD44v6 expression and increasing grade and stage of TCC. No such correlation with SCC and with bilharzial cystitis, sex and age of the patient, or size of the tumor was documented.     

上皮钙黏蛋白和CD44v6蛋白在青年胃腺癌组织中的表达及其临床意义

目的:探讨上皮钙黏蛋白(E-cad)与CD44v6蛋白在青年(≤35岁)胃癌组织中的表达及其与临床病理特征之间的关系.方法:收集68例青年(≤35岁)和68例老年(≥60岁)胃腺癌组织,用免疫组织化学EnVision法检测E-cad和CD44v6的表达.结果:远离癌组织的正常胃黏膜上皮几乎全部上皮细胞膜着色,即正常表达;而胃癌组织中E-cad呈异常表达,即细胞质着色或异质性着色.青年胃癌组织E-cad异常表达率和CD44v6阳性表达率分别为70.6%和76.5%,而老年胃癌组织E-cad异常表达率和CD44v6阳性表达率分别为42.6%和51.5%,两者比较差异有统计学意义.青年胃癌淋巴结癌转移组和无淋巴转移组E-cad异常表达率分别为63.6%和32.6%,差异有统计学意义;CD44v6淋巴结癌转移组阳性表达率为80.4%;无淋巴转移组阳性表达率63.6%,差异有统计学意义.青年胃癌组织中E-cad异常表达和CD44v6蛋白表达呈正相关.结论:E-cad蛋白异常表达及CD44v6蛋白高表达预示青年胃癌具有较强的侵袭转移能力,可作为预测青年胃癌转移潜能的生物学指标.     

Expression of CD44s and CD44v6 in transitional cell carcinomas of the urinary bladder: comparison with tumour grade, proliferative activity and p53 immunoreactivity of tumour cells

Alterations of CD44 glycoproteins have been shown to play an important role in progression of various malignancies, including urothelial cancer. We investigated expression patterns of CD44s and CD44v6 in transitional cell carcinoma (TCC) of the urinary bladder in relation to tumour grade, proliferative activity, and immunoreactivity for p53. The selected markers were detected immunohistochemically in 122 samples of TCC. We found a close relationship between CD44s and CD44v6 expression and tumour grade. The extension of positive staining for CD44s and CD44v6 towards the luminal surface was a predominant feature of differentiated carcinomas (grades 1 and 2), suggesting deranged maturation of cancer cells related to their neoplastic transformation. Heterogeneous expression of CD44s and CD44v6 predominated in poorly differentiated tumours (G3-4). However, areas of squamous differentiation within the high-grade tumours displayed strong immunoreactivity for both CD44s and CD44v6. The proliferative activity and p53 overexpression increased with the dedifferentiation of the tumour. The results of this study are discussed in relation to the significance of CD44 expression in TCC and to the explanation for controversial results reported in previous studies on the relationship between CD44 expression and the biological behaviour of urothelial cells.     

Immunostaining of galectin-3 and CD44v6 using fine-needle aspiration for distinguishing follicular carcinoma from adenoma

To evaluate the clinical applicability of galectin-3 and CD44 variant 6 (CD44v6) immunostaining in fine-needle aspiration cytology (FNAC) of thyroid follicular tumors, 79 cytological specimens (35 follicular carcinomas and 44 follicular adenomas) were studied. The positive rates of galectin-3 and CD44v6 were 89 and 74% in follicular carcinoma, respectively, and 25 and 30% in follicular adenoma, respectively. There were no significant correlations between the expression of galectin-3 or CD44v6 in follicular carcinoma and characteristics such as capsular invasion, vascular invasion, metastasis, or tumor size. Positive staining of either galectin-3 or CD44v6 resulted in a diagnostic sensitivity of 97% and a specificity of 52% for follicular carcinoma among follicular tumors. Immunostaining of galectin-3 or CD44v6 using cytological specimens can provide independent information on conventional morphological findings of cytology to distinguish follicular carcinoma from adenoma.