酪氨酸激酶B在涎腺腺样囊性癌中的表达及意义

目的探讨酪氨酸激酶B（TrkB）与涎腺腺样囊性癌（SACC）的关系。方法采用免疫组化链亲和素法分析45例SACC的TrkB表达,并统计分析TrkB与SACC病理学分型、临床分期、区域淋巴结转移和神经侵犯的关系。结果TrkB表达与SACC病理学分型无明显相关（P〉0.05）,而与临床分期、区域淋巴结转移和神经侵犯呈正相关（P〈0.05）。结论TrkB能促进SACC区域淋巴结转移和神经侵犯的发生,并可作为指标来预测SACC的区域淋巴结转移和神经侵犯。     

腺样囊性癌嗜神经侵袭的临床病理研究

目的:探讨腺样囊性癌嗜神经侵袭的临床及组织病理学特征。方法:34例经病理确诊的腺样囊性癌病例,病理切片取材见神经断面。对34例病例的临床表现、病理学特征、诊断、治疗以及预后进行分析。结果:ACC复发率似与神经侵袭的病理及临床症状、体征表现有一定关系。但本组病例样本较少,尚需更多样本进行研究。结论:对腺样囊性癌嗜神经侵袭的临床病理特征进行研究,可为其机理研究提供参考,以便早发现、早治疗,提高治愈率及生存率。     

脑源性神经营养因子在涎腺腺样囊性癌中的表达及意义

[目的]探讨脑源性神经营养因子（BDNF）与涎腺腺样囊性癌（SACC）的关系。[方法]采用免疫组织化学方法检测45例SACC切片中BDNF的表达,并统计分析BDNF与SACC组织学分型、临床分期、神经侵犯和远处转移之间的关系。[结果]BDNF在SACC中的阳性表达率为84.4%（38/45）,BDNF表达强度与SACC的组织学分型和神经侵犯无明显关系（P〉0.05）,而与临床分期、远处转移关系密切（P〈0.05）。[结论]SACC中存在BDNF异常表达,而且BDNF可能促进了SACC的发生发展。     

人涎腺腺样囊性癌嗜神经侵袭超微结构的观察研究

目的:通过电镜检测来进一步探索人涎腺腺样囊性癌嗜神经侵袭的超微形态特征.方法:将人涎腺腺样囊性癌Acc-M细胞系注射入5只裸鼠双侧臀部肌肉内,切取其中发生神经侵袭并出现功能障碍的荷瘤;通过透射电镜检测来观察腺样囊性癌的嗜神经侵袭过程. 结果:肿瘤细胞破坏神经外膜及神经束膜,进入神经纤维之间,并以吞噬的方式对神经纤维进行侵袭,致使髓鞘、轴突发生变性、溶解而被吸收.结论:涎腺腺样囊性癌细胞在对神经的侵袭过程中具有一定的吞噬作用,且这种现象在神经侵袭中起了很重要的作用.     

口腔颌面部腺样囊性癌嗜神经侵袭的临床分析

目的:探讨口腔颌面部腺样囊性癌（ACC）嗜神经侵袭（PNI）发生情况及相关影响因素。方法:回顾性分析2008年1月至2016年12月山西省肿瘤医院收治的55例口腔颌面部ACC患者的临床资料,采用多元logistic回归模型分析患者临床特征与PNI发生的相关性。结果:55例患者中发生PNI 25例（45.5%）,其中腮腺...     

涎腺腺样囊性癌中丝裂原激活蛋白激酶p38的表达及意义

目的 探讨丝裂原激活蛋白激酶p38(p38MAPK)在涎腺腺样囊性癌(SACC)中的表达及临床意义.方法 采用组织微阵列平台,运用免疫组化和原位杂交技术,检测52例SACC和11例正常涎腺组织中p38MAPK蛋白和mRNA的表达,并分析其与SACC 临床病理特征的关系.结果 正常涎腺组织和SACC组织中,p38MAPK蛋白的阳性表达率分别为36.4%和96.2%,差异有统计学意义(P＜0.01).p38MAPK蛋白表达与SACC的淋巴结转移、神经侵犯有关(均P＜0.05).正常涎腺组织和SACC组织中,p38MAPK mRNA的阳性表达率分别为45.5%和94.2%,差异有统计学意义(P＜0.01).p38MAPK mRNA表达与SACC的淋巴结转移、神经侵犯有关(均P＜0.05).SACC组织中,p38MAPK蛋白与mRNA的表达呈正相关(r=0.409,P＜0.01).结论 在SACC组织中,p38MAPK表达上调,p38MAPK通路可能与SACC的发生、侵袭和转移有关.

Abstract：

Objective To investigate the expression of p38 mitogen-activated protein kinase (p38MAPK) in salivary adenoid cystic carcinoma (SACC) tissues and their clinicopathologic significance.Methods The protein and mRNA expressions of p38MAPK were examined by immunohistochemistry and in situ hybridization, respectively, in 52 cases of SACC and in 11 normal salivary gland tissues adjacent to the tumors on a tissue microarray platform.Results The positive rate of p38MAPK protein expression in the paracancerous normal salivary gland tissues and that in SACC were 36.4% and 96.2%, respectively,showing a significant statistical difference (P ＜ 0.01 ).The protein expression of p38MAPK was positively correlated with the lymph node metastasis and nerve involvement (P ＜ 0.05 ).The positive rates of p38MAPK mRNA in the paracancerous tissues and in the SACC tissues were 45.5% and 94.2%,respectively, with a significant statistical difference (P ＜0.01 ).The mRNA expression of p38MAPK was positively correlated with the lymph node metastasis and nerve involvement (P ＜ 0.05 ).In the SACC, there was a notable positive correlation between the p38MAPK protein and mRNA expressions (r = 0.409, P ＜0.01).Conclusions The expression of p38MAPK is up-regulated in salivary adenoid cystic carcinoma.p38MARK may be involved in the tumorigenesis, development and metastasis of this cancer.     

神经细胞黏附分子49例涎腺腺样囊性癌表达及临床意义

[目的]探讨神经细胞黏附分子（NCAM）在涎腺腺样囊性癌（SACC）中的表达及临床意义。[方法]应用免疫组织化学方法检测49例涎腺腺样囊性癌中NCAM的表达情况。[结果]NCAM阳性表达率为57.14%（28/49）。NCAM在涎腺腺样囊性癌的表达与患者性别、肿瘤部位、原发灶分期无相关性。NCAM阳性表达率在管状型与实性型有显著性差异（χ^2=4.07,P=0.04）。有无神经侵犯NCAM阳性表达存在显著性差异（χ^2=10.02,P〈0.05）。[结论]神经细胞黏附分子与涎腺腺样囊性癌的神经侵袭性显著相关,NCAM在SACC中起到了重要作用。     

涎腺腺样囊性癌生物学特性研究

由上海第二医科大学附属第九人民医院口腔颌面外科研究完成的“诞腺腺样囊性癌生物学特性研究”课题，于1996年10月通过上海市科学技术成果鉴定。该研究由何荣根、邱蔚六等教授针对涎腺癌的临床和病理实践中提出的和当前国内外争论的热点课题，以腺样囊性癌（ACC）为代表，从其生物学特性认识入手进行了较系统的实验研究。分别建立了来自腭部小涎腺和腮腺的涎腺腺样囊性癌ACC-2和ACC-3细胞系，完成了各种细胞生物学特性检测和鉴定。首次证实ACC细胞在试管内能分泌基底膜成份层粘蛋白（LN）、Ⅳ型胶原、肝硫酸乙酰糖蛋白、内粘蛋白（En…     

PCNP和β-catenin在涎腺腺样囊性癌中的表达及临床意义

目的探讨PCNP和β-catenin在涎腺腺样囊性癌(SACC)组织中的表达及其与临床病理特征的关系。方法收集2013年1月至2020年12月兰州大学第一医院30例接受手术切除的SACC患者的癌组织及10例癌旁组织标本。采用免疫组织化学SP法检测PCNP、β-catenin在SACC及癌旁组织中的表达情况,分析PCNP、β-catenin的表达与SACC临床病理特征的关系以及两者表达的相关性。结果 PCNP在SACC组织细胞核中大量表达,β-catenin在SACC肿瘤细胞中主要表达于细胞质及部分胞核。PCNP、β-catenin在SACC组织中的阳性表达率分别为83.3%(25/30)、66.7%(20/30),均显著高于癌旁组织(0/10),差异有统计学意义(P<0.01)。SACC组织中PCNP、β-catenin的表达与神经侵袭有关(P<0.05);SACC组织中PCNP与β-catenin的表达呈显著正相关(r=0.713,P<0.001)。结论 PCNP和β-catenin在SACC组织中的阳性表达率升高,推测其可能与SACC的发生发展相关。     

抑癌基因P16在涎腺腺样囊性癌中的表达意义

目的：探讨抑癌基因P16与涎腺腺样囊性癌的发生发展的关系。方法：采用免疫组织化学法检测30例腺样囊性癌中P16基因表达情况。结果：腺样囊性癌组织中阳性表达率为76．6％,P16蛋白阳性率在腺样囊性癌的腺样型,管状型,混合型,实体型中分别为90％,100％,42．9％,显示P16蛋白表达阳性率随恶性程度的上升而,降低,P16阳性与阴性之间的5年生存率则无明显差异。结论：抑癌基因P16的表达与肿瘤的病理类型有关,而腺样囊性癌预后好于其它肿瘤可能与P16缺失少有关。     

Estrogen receptor expression in salivary gland mucoepidermoid carcinoma and adenoid cystic carcinoma

Estrogen receptor (ER) expression in salivary gland carcinomas is controversial, and most published studies considered no more than 10 cases. We analyzed ER expression by immunohistochemistry in 136 mucoepidermoid carcinomas and 72 adenoid cystic carcinomas. All cases were negative. These results do not support a role for estrogens in salivary gland mucoepidermoid carcinoma and adenoid cystic carcinoma.     

Ezrin在涎腺腺样囊性癌组织中的表达

目的:探讨Ezrin在涎腺腺样囊性癌组织中的表达及意义。方法:用免疫组织化学SP法检测Ezrin在涎腺腺样囊性癌组织和正常涎腺组织中的表达,分析其在涎腺腺样囊性癌组织中的表达与肿瘤的侵袭性、复发、转移和预后的关系。结果:Ezrin在涎腺腺样囊性癌和正常涎腺组织中的阳性率表达分别为44.68%和9.09%,P<0.05;在癌细胞中主要为胞质内表达,染色深,而在正常涎腺组织则主要为细胞膜表达,染色浅或阴性。Ezrin的表达强度与有无神经受侵、有无发生局部复发及远处转移相关,P<0.05。Ezrin表达阳性组和阴性组的5年累积生存率分别为66.70%和100.00%,10年累及生存率分别为27.83%和95.00%,阳性组较阴性组预后差,P<0.05。结论:Ezrin的表达强度与涎腺腺样囊性癌的发生、侵袭性、复发和转移性有关,且Ezrin阳性表达预示患者预后不良。     

Analysis and significance of c-MET expression in adenoid cystic carcinoma of the salivary gland

Adenoid cystic carcinoma (ACC), a rare salivary gland malignancy, is a histogenetic, morphologic, and clinical heterogeneous disease. Extensive efforts have been made to characterize molecular events associated with these tumors, including the identification of prognostic and predictive biomarkers. Increased copy number gain and amplification of c-Met, the cell surface receptor for hepatocyte growth factor, has been shown to enhance tumor growth and invasiveness and promote metastasis in certain tumor types. In this study, we evaluated the expression of c-Met by immunohistochemistry (IHC) in a large cohort of salivary gland ACCs and examined its clinicopathologic implications. Archival formalin-fixed paraffin-embedded blocks from 200 ACC patients were used in this study. Pathologic patterns and phenotypic expression of c-Met were recorded and compared with clinical factors including gender, age, disease stage at diagnosis, and clinical outcomes. Correlations between c-MET expression and clinical characteristics were assessed by Pearson''s chi-square test or by the 2-tailed Fisher exact test. Curves describing overall survival were generated by Kaplan-Meier product limit method. Strong c-MET expression was seen in inner ductal and outer myoepithelial cells in 53.2% of the cases. There was no correlation between c-Met overexpression and clinicopathologic parameters or patient''s overall survival ( p = .94074). In conclusion, c-MET expression is high in a significant subgroup of ACC patients. While c-MET expression is not a prognostic factor in ACC, its role as a predictive marker of benefit from MET inhibitors deserves further investigation.     

涎腺腺样囊性癌增殖、侵袭及转移相关信号通路的研究进展

涎腺腺样囊性癌是最常见的涎腺恶性肿瘤之一,其生长缓慢、侵袭性强,常沿骨膜和神经扩散,早期即可发生远处转移.涎腺腺样囊性的侵袭和转移是一个多阶段、多因素参与的过程,涉及复杂的机制和多条信号转导通路.文章就相关信号通路的研究进展进行综述.     

Inhibition of STAT3 reduces proliferation and invasion in salivary gland adenoid cystic carcinoma

In this study, we accessed the expression and correlation of p-STAT3 with Survivin, Cyclin D1, CD147, Slug and Ki67 by immunohistochemical staining of human tissue microarray which contains 72 adenoid cystic carcinoma (AdCC), 12 pleomorphic adenoma (PMA) and 18 normal salivary gland (NSG) using digital pathological scanner and scoring system. We found that the expression of p-STAT3, Survivin, Slug, Cyclin D1 and CD147 was significantly increased in AdCC as compared with PMA and (or) NSG (p<0.05). While, the level of p-STAT3 and expression of Cyclin D1 and CD147 was not associated with pathological type of human AdCC (p>0.05). Correlation analysis of these proteins revealed that p-STAT3 up-regulates the expression of Survivin, Slug, Cyclin D1 and CD147 (p<0.05). Moreover, the activation of STAT3 was associated with proliferation marker Ki-67 (p<0.05). Selective inhibition of STAT3 by a small molecule S3I-201 significantly reduced human SACC-83 and SACC-LM cells proliferation, migration and invasion with the corresponding decrease in expression of Survivin, Slug, Cyclin D1 and CD147. These findings indicate that high phosphorylation level of STAT3 in AdCC is related to Survivin, Slug, Cyclin D1 and CD147. We suggest that the inhibition of STAT3 may be a novel strategy for neoadjuvant chemotherapeutic treatment of AdCC.     

NT-3对腺样囊性癌细胞系ACC-M体外粘附能力的影响

目的:研究NT-3对涎腺腺样囊性癌细胞系ACC-M体外粘附能力的影响。方法:应用MTT比色法测定不同浓度NT-3对ACC-M细胞在重构基底膜Matrigel上的粘附率。结果:ACC-M细胞与2.5,5,10ng/ml浓度的NT-3共培养30min、90min和6h后的粘附率均明显比同期内未加NT-3组高;而与浓度为500ng/ml的NT-3共培养6h后的粘附率却明显降低。结论:NT-3对ACC-M细胞系体外粘附能力的影响存在浓度依赖性。一定浓度的NT-3能够促进ACC-M细胞系的体外粘附能力。     

腺样囊性癌组织神经生长因子及受体表达与神经浸润相关性的探讨

目的:观察神经生长因子(NGF)及其功能性受体酪氨酸激酶A(TrkA)在腺样囊性癌(ACC)的表达情况,探讨NGF和TrkA在ACC神经浸润(NI)过程中的作用及其意义。方法:47例石蜡包埋ACC标本,常规HE染色,观察有无NI;并依据形态特点将NI类型分为侵入型和围神经型。免疫组织化学检测NGF和TrkA的表达情况。7例新鲜ACC标本,RT-PCR法检测NGF和TrkA的mRNA的表达水平。结果:47例ACC中37例存在NI,其中侵入型25例、围神经型12例。7例新鲜标本5例存在NI。免疫组织化学染色结果显示,NGF在NI组阳性率为86.49%,非NI组为50.00%,侵入型组为92.00%,围神经组为90.00%;TrkA在NI组阳性率为59.46%,非NI组为40.00%,侵入型组为68.00%,围神经组为50.00%。RT-PCR检测结果显示,NGF mRNA的表达水平在NI组较高,TrkA mRNA的表达两组差异无统计学意义。结论:神经周围癌细胞NGF的表达高于远离神经的癌细胞,而其受体TrkA在神经束膜和肿瘤细胞表面均有表达,NGF与其受体的结合促进癌细胞向着神经聚集并沿其生长,形成NI。     

腺样囊性癌SACC-83细胞对雪旺氏细胞的诱向作用

目的观察并探讨在体外坐骨神经与腺样囊性癌细胞共培养中腺样囊性癌细胞对由坐骨神经长出的雪旺氏细胞生长、迁移的影响。方法采用细胞培养技术将腺样囊性癌细胞、舌癌细胞及成纤维细胞分别与小鼠坐骨神经共培养;制备腺样囊性癌细胞与坐骨神经共培养细胞玻片,并行S100免疫组化染色实验。结果坐骨神经与腺样囊性癌细胞共培养中由坐骨神经长出的雪旺氏细胞向腺样囊性癌细胞群落迁移,表现出趋化性;舌癌细胞与成纤维细胞对雪旺氏细胞无诱向作用;经S100免疫组化染色,坐骨神经生长出长梭形的细胞,染色阳性,为雪旺细胞;多边形的细胞染色阴性,为成纤维细胞。结论坐骨神经与腺样囊性癌细胞共培养中长出的雪旺氏细胞向腺样囊性癌细胞群落趋化性生长,可能是腺样囊性癌嗜神经性重要机理之一,与腺样囊性癌细胞发生雪旺细胞分化有关。     

Mammographic features of adenoid cystic carcinoma

Adenoid cystic carcinoma of the breast accounts for < 1% of breast malignancies. This case report describes the mammographic features and the pathology. Adenoid cystic carcinoma is a well-circumscribed carcinoma that has a relatively good prognosis.