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。     

乳腺腺样囊性癌

腺样囊性癌可发生在多个器官,如涎腺、泪腺、汗腺、鼻腔、支气管、乳腺等[1]。Billroth[2]在1856年将其命名为圆柱瘤。Geschickter[3]在1945年首次将其命名为腺样囊性癌。这种特殊亚型乳腺癌一般不表达ER、PR及HER-2,但是与非特殊型乳腺癌相比,其预后更好,因此,正确的诊断对于指导临床治疗及判断预后非常重要。1腺样囊性癌发病率及临床特征腺样囊性癌发生于涎腺者较常见,但发生在乳腺却很少见。据文献报道,乳腺腺样囊性癌约     

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。     

酪氨酸激酶B在涎腺腺样囊性癌中的表达及与嗜神经侵袭的关系

目的检测酪氨酸激酶B(TrkB)在涎腺腺样囊性癌(ACC)的表达情况，探讨TrkB与ACC嗜神经侵袭的关系。方法研究对象为28例ACC，3例正常腮腺，3例正常颌下腺，3例正常舌下腺及5例涎腺腺泡细胞癌标本，采用免疫组织化学及图像分析法对组织切片中的TrkB进行检测。结果以病理学表现为标准，28例ACC中的嗜神经侵袭率为46．4％(13／28)，TrkB阳性率为92．8％(26／28)，存在嗜神经现象组中TrkB表达水平明显高于未见嗜神经现象组(P=0．001)。TrkB的表达在正常大涎腺的导管细胞为阳性，而在腺泡细胞癌胞浆内均为阴性。结论TrkB可能作为ACC嗜神经侵袭的生物学标志物。TrkB表达的增高可能是ACC嗜神经侵袭的机理之一。     

双侧腮腺腺样囊性癌1例并文献复习

腺样囊性癌(adenoid cystic carcinoma,ACC)多发生于颌面部大、小涎腺,其中腭部最为常见,现有文献中腮腺ACC双侧发病率极低,仅有1973年法国报道1例. 1 病例资料 患者,女性,65岁,2013年7月因左耳后肿物8年余,发现右咽旁肿物半月入本院.无进食肿胀,无耳鸣、听力下降,无闭眼不全、口角歪斜.否认系统性疾病史、家族性疾病史及肿瘤性疾病史.查体见左乳突前下缘可及大小分别为1.0 cm ×1.0 cm、1.5 cm×1.7cm、2.0 cm ×2.0 cm的3个肿物,轻压痛、活动度尚可、界尚清、质地中等.右腮腺区未及明显肿块,咽腔右侧略饱满,软腭活动可,扁桃体无肿大.无面瘫症状,无声嘶.     

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。     

涎腺腺样囊性癌组织侵袭相关蛋白表达及其与临床因素相关性的研究

目的:观察GFAP、NT-3、Trk及NCAM在腺样囊性癌(ACC)组织中的表达,探讨ACC嗜神经侵袭可能的分子机制,分析4种蛋白表达与临床各因素的关系.方法:采用免疫组化方法检测94例ACC标本中侵袭相关蛋白表达水平,分析4种蛋白在ACC有无嗜神经侵袭组间和临床各因素组间的表达差异.结果:瘤细胞GFAP、NT-3、Trk的过表达和NCAM的低表达在有无嗜神经侵袭和病理分型组间差异均有统计学意义,P均<0.05;NT-3和Trk的过表达在有无复发组间差异均有统计学意义,P均<0.05;NT-3的过表达在有无切缘浸润组间差异有统计学意义,P<0.05.多因素Logistic回归模型分析表明,GFAP、NT-3和Trk的表达与ACC嗜神经侵袭呈正相关,夥直鹞2.097、1.871和3.194,P均<0.05;GFAP表达与ACC病理分型呈负相关,=-1.216,P=0.021.ACC组织中神经组织NCAM的表达高于周围侵袭的肿瘤细胞.结论:瘤细胞过表达GFAP、NT-3和Trk可能共同参与了ACC嗜神经侵袭的过程,低表达NACM对ACC的嗜神经侵袭可能起到了一定的促进作用.     

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。     

Notch1在腺样囊性癌组织中的表达及其对预后的影响

目的： 探讨腺样囊性癌 (adenoid cystic carcinoma,ACC)组织中Notch1的表达,分析其表达与临床病理资料间的关系及其对预后的影响。方法：运用免疫组化方法检测38例ACC患者及对照组正常口腔小涎腺中Notch1的表达,并对ACC病例进行随访,分析Notch1的表达与临床病理资料间的关系及其对预后的影响。结果：ACC病例组中Notch1总阳性率为81.6% (31/38),而正常口腔小涎腺阳性率为30% (9/30),Notch1在ACC及正常口腔小涎腺中的表达差异具有统计学意义 (P<0.05)。Notch1的表达与病理分型、T分期及侵犯相邻组织呈正相关 (r =0.550,P=0.002;r =0.741,P=0.001;r =0.523,P=0.005)。单因素分析显示：病理分型、淋巴结转移、Notch1的表达、T分期、侵犯相邻组织对患者的预后有影响 (P<0.05),且Notch1的表达和肿瘤分期是影响患者预后的独立危险因素。结论：ACC生长缓慢,但易复发且伴远处转移,Notch1在ACC的发生和发展中起重要作用,在评估其预后方面起一定作用。     

乳腺腺样囊性癌

乳腺腺样囊性癌张保宁胡兴胜李泰生刘复生高峰刘宁乳腺腺样囊性癌（ａｄｅｎｏｉｄｃｙｓｔｉｃｃａｒｃｉｎｏｍａ，ＡＣＣ），又名乳腺腺囊癌或圆柱瘤，是浸润性乳腺癌的特殊类型，临床少见。我院外科２８年仅收治４例，现报告如下。临床资料本组男１例，女３例。年龄...     

Expression of epidermal growth factor receptor in different salivary adenoid cystic carcinoma cell lines

Objective： To investigate the expression of epidermal growth factor receptor, a receptor tyrosine protein kinase, in the subcellular fractions of human salivary adenoid cystic carcinoma cell lines SACC-83 and SACC-LM. Methods： Low metastatic and high metastatic cells of the adenoid cystic carcinoma, SACC-83 and SACC-LM, were cultured. Their subcellular fractions were extracted. The expression of epidermal growth factor receptor was detected with Western blot method, and the results of protein expression were quantitatively analyzed by FluorChem V2.0 software. Results： The results of Western blot analysis indicated that, EGFR expression on the membrane of SACC-83 cells was significantly higher than that of SACC-LM cells, but its expression in cytoplasm was significantly less in the former than the later （P〈0.01）. In SACC-83 cell line, EGFR was over-expressed in membrane （P〈0.01）, but in SACC-LM cell line, EGFR was over-expressed in cytoplasm （P〈0.01）. Conclusion： The results suggest that the obtaining of metastasis ability is related to the high expression of EGFR protein in cytoplasm, so the molecular targeting therapy to EGFR may be an ideal treatment for the invasion and metastasis of salivary adenoid cystic carcinoma.     

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.     

Cetuximab and platinum-based chemoradio- or chemotherapy of patients with epidermal growth factor receptor expressing adenoid cystic carcinoma: a phase II trial

Background:

Epidermal growth factor receptor (EGFR) is highly expressed in adenoid cystic carcinoma (ACC). The efficacy and toxicity of cetuximab with concomitant platinum-based chemoradio- or chemotherapy in patients with locally advanced or metastatic ACC, respectively, was evaluated.

Methods:

Eligible patients (9 with locally advanced tumour and 12 with metastases) had positive tumour EGFR expression. The cetuximab loading dose (400 mg m⁻²) was followed by 250 mg m⁻² per week. Locally advanced tumours were irradiated (mean dose 65 Gy) and treated with concomitant cisplatin (75 mg m⁻², intravenously). Patients with metastases received concomitant cisplatin and 5-fluorouracil (4 × 1000 mg m⁻²).

Results:

For patients with locally advanced disease (median follow-up: 52 months), the median progression-free survival (PFS) was 64 months and the 2-year overall survival (OS) rate was 100%. For patients with metastases (median follow-up: 72 months), the median PFS and OS were 13 and 24 months, respectively. In both groups the objective response rate was >40%. Skin rash, in-field dermatitis, mucositis and vomiting were the most frequent grade 3/4 adverse events.

Conclusion:

In this single-arm study, the efficacy of cetuximab plus chemoradio- or chemotherapy appeared favourable as compared with historical controls. All side effects were manageable and did not hamper the treatment.     

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.     

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.     

Primary adenoid cystic carcinoma of the lung: absence of KIT mutations

BACKGROUND: Primary pulmonary adenoid cystic carcinomas (ACCs) are rare lung neoplasms that are challenging to completely resect and can exhibit poor survival. Adjuvant therapy is often ineffective and identification of a targeted novel therapy would be useful. The objective of the current study was to evaluate KIT expression and KIT-activating mutations. METHODS: Primary salivary gland-type tumors of the lung diagnosed between 1972 and 2002 at the Mayo Clinic were identified and the subset of primary pulmonary ACCs were reviewed. Immunohistochemical study for KIT expression and KIT gene mutations in exons 9, 11, 13, and 17 were performed on paraffin-embedded tissue. RESULTS: Forty-nine patients were diagnosed with primary pulmonary ACC. The majority of ACC cases were predominantly the cribriform type (74.4%). KIT immunoreactivity was evaluated in 34 cases and was found to be present in all but 1 case (97%). No mutations were detected in KIT gene exons 9, 11, 13, and 17 in a subset of 12 cases. CONCLUSIONS: Although KIT expression was found frequently in primary pulmonary ACC, a correlation with KIT-activating mutations was not observed.     

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。     

支气管腺样囊性癌35例临床分析

目的总结我院1968～2007年收治的35例支气管腺样囊性癌的临床特点,旨在提高对本病的认识。方法对35例支气管腺样囊性癌的临床特点进行分析。结果临床表现：该病发病率男女均等。首发症状以咳嗽、咳痰、咳血、气促气短等较大中心气道占位而引起的阻塞症状为主要表现。诊断：胸部X线、CT常显示中央性肿块,可伴支气管内肿物,但确诊要通过纤维支气管镜、手术病理证实。治疗和预后：手术为最佳的治疗方式,对于手术切缘有癌残留的患者应予术后辅助放疗;单纯放疗亦有效,但不易治愈;单纯化疗效果不佳。该病低度恶性,一般发展较慢,病程长,3年、5年、10年生存率分别为84．6％,66．7％,46．2％。结论支气管腺样囊性癌起源于支气管粘膜下的浆液及粘液腺,具有低度恶性,发展缓慢,罕见。目前认为手术切除是最佳治疗方法。