Carrière Catherine, Young Alison L, Gunn Jason R, Longnecker Daniel S, Korc Murray
Department of Medicine, Dartmouth Medical School, Hanover, NH 03755, USA.
Biochem Biophys Res Commun. 2009 May 8;382(3):561-5. doi: 10.1016/j.bbrc.2009.03.068. Epub 2009 Mar 16.
Chronic pancreatitis increases by 16-fold the risk of developing pancreatic ductal adenocarcinoma (PDAC), one of the deadliest human cancers. It also appears to accelerate cancer progression in genetically engineered mouse models. We now report that in a mouse model where oncogenic Kras is activated in all pancreatic cell types, two brief episodes of acute pancreatitis caused rapid PanIN progression and accelerated pancreatic cancer development. Thus, a brief inflammatory insult to the pancreas, when occurring in the context of oncogenic Kras(G12D), can initiate a cascade of events that dramatically enhances the risk for pancreatic malignant transformation.
慢性胰腺炎会使患胰腺导管腺癌(PDAC)的风险增加16倍,胰腺导管腺癌是人类最致命的癌症之一。在基因工程小鼠模型中,慢性胰腺炎似乎也会加速癌症进展。我们现在报告,在一个所有胰腺细胞类型中致癌性Kras均被激活的小鼠模型中,两次短暂的急性胰腺炎发作导致了胰腺上皮内瘤变(PanIN)迅速进展,并加速了胰腺癌的发展。因此,当在致癌性Kras(G12D)的背景下发生时,对胰腺的短暂炎症刺激可引发一系列事件,显著增加胰腺恶性转化的风险。