腺样囊性癌两个细胞系体外侵袭能力比较

目的：研究转移潜能不同的两个腺样囊性癌细胞系体外侵袭能力的差异。方法：选用肺低转移细胞系Ａｃｃ－２和从中筛选出肺高转移细胞系Ａｃｃ－Ｍ,利用ＭＴＴ法检测与几种基底膜成分的粘附能力;划痕法检测运动能力;ＰＡＧＥ底物酶谱法检测分泌Ⅳ型胶原酶的能力;改良勃顿小室法观察对重组基底膜的侵袭能力。结果：①１小时后Ａｃｃ－２细胞系对３种细胞外基质的粘附率分别是纤维粘连蛋白（ＦＮ）６１．８％、层粘连蛋白（ＬＮ）４     

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。     

正丁酸钠对涎腺腺样囊性癌细胞株ACC-M侵袭、迁移的影响及机制研究

背景与目的：有研究证实,正丁酸钠(sodium butyrate,NaB)对肿瘤细胞具有抑制增殖、诱导分化和促凋亡的作用,但对涎腺腺样囊性癌(salivary adenoid cystic carcinoma,SACC)的作用机制尚不明确。该研究主要探讨不同浓度NaB对SACC细胞株ACC-M侵袭、迁移的影响及其作用机制。方法：MTT法探索NaB作用ACC-M细胞的最佳浓度并观察细胞的生长情况,Transwell小室实验检测NaB对ACC-M细胞侵袭、迁移能力的影响,实时荧光定量PCR(real-time PCR,RT-PCR)和蛋白质印迹法(Western blot)分别检测5组浓度药物作用后ACC-M细胞中高迁移率蛋白-1(high mobility group box-1,HMGB1)、toll样受体-4(toll like receptor-4,TLR4)mRNA和蛋白的表达。结果：与对照组相比,加入NaB 0.625、1.25、2.5、5及10 mmol/L的5组均能抑制ACC-M细胞增殖且呈明显浓度依赖性(P<0.05)。5组浓度NaB均可抑制ACC-M细胞体外侵袭和迁移能力(P<0.05),同时能降低ACC-M细胞HMGB1、TLR4 mRNA及蛋白的表达(P<0.05);相关性分析显示TLR4蛋白表达的降低与HMGB1的抑制呈正相关(r=0.810,P<0.05)。结论：NaB可抑制ACC-M细胞增殖,显著降低ACC-M细胞的侵袭和迁移能力,同时降低HMGB1、TLR4 mRNA和蛋白的表达,且2者表达量呈明显正相关,提示NaB可能是通过下调HMGB1、TLR4 mRNA和蛋白的表达来实现对ACC-M细胞侵袭、迁移能力的抑制。     

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。     

中药诱导腺样囊性癌细胞凋亡的研究进展

从中药中寻找毒副反应小、安全有效的抗肿瘤药物为近年的研究热点，其诱导肿瘤细胞凋亡将成为抗肿瘤治疗的新靶标。中药在抑制、杀伤肿瘤细胞、改善症状与体征以及减轻放化疗不良反应等方面发挥着重要作用。中药可以通过多种途径诱导癌细胞凋亡。本文综述了近年来中药及其提取物如紫杉醇、黄芪、苦参碱、染料木黄酮、红景天甙、中华眼镜蛇蛇毒等诱导腺样囊性癌细胞（salivary adenoid cystic carcinoma，SACC）凋亡的研究近况及其作用机制。     

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...     

头颈部腺样囊性癌的放射治疗

1971年3月～1986年8月收治51例头颈部腺样囊性癌。其中单纯放疗9例,术后复发再放疗14例,术后补充放疗16例,术前放疗4例,单纯手术8例。照射剂量30～80Gy/3～8周。5年、10年和15年生存率分别是51.0％(26/51)、40.9％(9/22)和36.4％(4/11),5年、10年和15年无病生存率分别是39.2％(20/51)、31.8％(7/22)和36.4％(4/11)。单纯放疗及术后复发再放疗共23例中放疗后完全消退3例,消退≥50％10例,消退<50％10例,年生存率为47.8％(11/23),有较好的姑息作用。术后补充放疗5年生存率68.7％(11/16),疗效肯定应予提倡。单纯放疗剂量应70～80Gy/7～8周甚至更高。颈部淋巴结不做预防照射后转移率10.3％(3/29)。不主张预防照射颈部。     

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...     

气管腺样囊性癌1例

1资料患者女性,42岁。刺激性干咳,呼吸困难半月,端坐呼吸7天,于2006年8月10日入院,查体未发现异常体征。CT平扫及增强扫描:胸锁关节平面见气管左前壁一大小约1.4cm×1.3cm×1.0cm的类圆形肿块,基底宽,边缘较清楚,无分叶,CT值约31Hu;注射造影剂后肿块明显强化,CT值约85Hu(图1,2)     

乳腺腺样囊性癌一例

腺样囊性癌多见于涎腺,而原发于乳腺少见,不足0．1％,误诊率高,且尚无明确的治疗标准。本文报道1例,并结合文献复习对其诊治进行探讨。     

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.     

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。     

Pim-1 acts as an oncogene in human salivary gland adenoid cystic carcinoma

Background

Pim-1 (Provirus integration site for Moloney murine leukemia virus 1) belongs to the Ser/Thr kinase family and plays a pivotal role in occurrence and development of oncogenesis. Recent studies have demonstrated that Pim-1 phosphorylates RUNX3 and alters its subcellular localization. However, few studies have concerned the implications of Pim-1 in the salivary gland adenoid cystic carcinoma (ACC). In this study, we aimed to clarify the function of Pim-1 in ACC in vitro. Meanwhile, we measured the levels of Pim-1 and RUNX3 in the ACC tissues. The correlations between Pim-1/RUNX3 levels and clinical parameters were also analyzed.

Methods

SACC-83 and SACC-LM cells were transfected with the Pim-1 siRNA. Pim-1 mRNA and protein expression were measured using real-time PCR and immnuoblot, respectively. Cell proliferation was analyzed by CCK-8 assay. Cell cycle, apoptosis, and mitochondrial membrane potential were detected by flow cytometry. Effects of Pim-1 on cells’ invasion were evaluated by transwell migration assay. Pim-1 and RUNX3 levels in ACC tissues were examined by immunohistochemistry.

Results

Pim-1 siRNA reduces cell proliferation, induces apoptosis, causes cell cycle arrest through cell cycle related proteins (Cyclin D1 and CDK4), mitochondrial depolarization, and decreases invasive ability in SACC-83 and SACC-LM cells. Pim-1 and RUNX3 levels are significantly relevant and associated with T-stage and nerve invasion in the ACC tissues.

Conclusions

This study demonstrates the oncogenic role of Pim-1 in ACC. The findings also suggest that Pim-1 may serve as a neoteric therapeutic target and potential prognostic marker for ACC cancer.

     

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。     

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.     

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.