EXPRESSION OF THE LAMININ γ2 CHAIN IN PANCREATIC ADENOCARCINOMA

EXPRESSION OF THE LAMININ γ2 CHAIN IN PANCREATIC ADENOCARCINOMA
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层粘连蛋白γ2链在胰腺腺癌中的表达

DOI:
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
H. Autio–Harmainen
H. Autio–Harmainen
中科院分区:
--
文献类型:
--
作者:
Y. Soini;M. Määttä;S. Salo;K. Tryggvason;H. Autio–Harmainen

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通过免疫组织化学和原位杂交研究了 42 例胰腺腺癌中层粘连蛋白 γ2 链的表达情况。在 41 个病例中,观察到 γ2 链的胞质内免疫反应性。阳性肿瘤细胞尤其位于肿瘤细胞岛的上皮-基质界面处。在22例中,间质中也可见到弥漫性层粘连蛋白γ2链免疫反应性,在7例中,在肿瘤基底膜中偶尔检测到阳性。肿瘤细胞中层粘连蛋白 γ2 链 mRNA 的信号显示出与免疫组织化学中观察到的分布相似的分布。在延伸至胰周组织和/或具有区域或远处转移的肿瘤中,层粘连蛋白γ2链阳性肿瘤细胞少于20%的病例显着增多(P=0·029)。 mRNA水平也有相应的统计显着性(P=0·025)。结果表明,胰腺腺癌表现出层粘连蛋白γ2链合成的高活性。具有强层粘连蛋白γ2链合成的肿瘤比具有弱或中度层粘连蛋白γ2链表达的肿瘤表现出较低的侵袭和转移潜力。
Forty‐two pancreatic adenocarcinomas were investigated immunohistochemically and by in situ hybridization for the expression of the laminin γ2 chain. In 41 cases, intracytoplasmic immunoreactivity for the γ2 chain was seen. Positive tumour cells were located especially at the epithelial–stromal interface of the tumour cell islands. In 22 cases, diffuse laminin γ2 chain immunoreactivity could also be seen in stroma and in seven cases, occasional positivity was detected in the neoplastic basement membranes. Signals for laminin γ2 chain mRNA in tumour cells displayed a distribution similar to that observed on immunohistochemistry. There were significantly more cases with less than 20 per cent of laminin γ2 chain‐positive tumour cells in tumours extending to peripancreatic tissues and/or tumours with regional or distant metastases (P=0·029). A corresponding statistical significance could also be noted in the mRNA level (P=0·025). The results show that pancreatic adenocarcinomas display a high activity of laminin γ2 chain synthesis. Tumours with a strong laminin γ2 chain synthesis show a lower invasive and metastatic potential than tumours with a weak or moderate laminin γ2 chain expression.
人层粘连蛋白 5 的 β 3 链基因 (LAMB3) 的克隆,该基因是交界性大疱性表皮松解症的候选基因。
DOI: 10.1016/0888-7543(95)80125-6
发表时间: 1995
期刊: Genomics
影响因子: 4.4
作者:
Pulkkinen,L;Gerecke,DR;Christiano,AM;Wagman,DW;Burgeson,RE;Uitto,J
通讯作者: Uitto,J
基底层组件。
DOI: 10.1016/0955-0674(94)90093-0
发表时间: 1994
影响因子: 7.5
作者:
Yurchenco,PD;O'Rear,JJ
通讯作者: O'Rear,JJ
大疱性表皮松解症的营养不良和连接形式的分子基础:VII 型胶原蛋白和加里宁(层粘连蛋白 5)基因的突变。
DOI: 10.1111/1523-1747.ep12398967
发表时间: 1994
期刊: The Journal of investigative dermatology
影响因子: --
作者:
Uitto,J;Pulkkinen,L;Christiano,AM
通讯作者: Christiano,AM