Pancreatic gene expression during the initiation of acute pancreatitis: identification of EGR-1 as a key regulator.

نویسندگان

  • Baoan Ji
  • Xue-qing Chen
  • David E Misek
  • Rork Kuick
  • Samir Hanash
  • Steve Ernst
  • Rebecca Najarian
  • Craig D Logsdon
چکیده

We hypothesized that genes expressed in pancreatic acinar cells during the initiation of acute pancreatitis determine the severity of the disease. Therefore, we utilized microarrays to identify those genes commonly induced in rat pancreatic acinar cells within 1-4 h in two in vivo models, caerulein and taurocholate administration. This strategy yielded 51 known genes representing a complex array of molecules, including those that are likely to either reduce or increase the severity of the disease. Novel genes identified in the current study included ATF3, BRF1, C/EBPbeta, CGRP, EGR-1, ephrinA1, villin2, ferredoxin, latexin, lipocalin, MKP-1, NGFI-B, RhoA, tissue factor (TF), and syndecan. To validate these microarray results, the role of EGR-1 was further investigated using quantitative RT-PCR, Western blotting, and immunocytochemistry. EGR-1 expression occurred within acinar cells and correlated with the development of caerulein-induced acute pancreatitis in rats. Furthermore, the levels of the inflammation-related genes MCP-1, PAI, TF, IL-6, and ICAM-1 and the extent of lung inflammation were reduced during the initiation of caerulein-induced acute pancreatitis in EGR-1-deficient mice. Thus this study identified EGR-1 and several other novel genes likely to be important in the development and severity of acute pancreatitis.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Acute Pancreatitis (AP) and Dietary Habbits

Inflammation of pancreatic parenchyma is said to be pancreatitis. It can be acute, presenting as emergency with short history or chronic as a continuation of acute with a long history. Autodigestion is responsible for pancreatitis on background of premature activation of pancreatic enzymes within the pancreas. Acute Pancreatitis is acute inflammation of the pancrease which can be mild to modera...

متن کامل

Effect of Diclofenac Suppository on Treatment of Acute Biliary Pancreatitis

Background and Aim: Acute pancreatitis is an inflammatory pancreatic disease that is associated with low or no fibrosis of the pancreas. Standard non-surgical treatment in all patients involves correcting water and electrolyte disorders, pain relief and avoiding pancreatic secretion. Given that pancreatitis is an inflammatory process, and NSAIDs have been shown to modulate inflammatory processe...

متن کامل

Glucagon-Like Peptide-1 Receptor Activation Modulates Pancreatitis-Associated Gene Expression But Does Not Modify the Susceptibility to Experimental Pancreatitis in Mice

OBJECTIVE Clinical reports link use of the glucagon-like peptide-1 receptor (GLP-1R) agonists exenatide and liraglutide to pancreatitis. However, whether these agents act on the exocrine pancreas is poorly understood. RESEARCH DESIGN AND METHODS We assessed whether the antidiabetic agents exendin (Ex)-4, liraglutide, the dipeptidyl peptidase-4 inhibitor sitagliptin, or the biguanide metformin...

متن کامل

گزارش بیمار مبتلا به سل ایزوله‌ی پانکراس: گزارش موردی

Background: Although Tuberculosis (TB) is prevalent in developing countries, visceral TB is rare. Most cases of pancreatic tuberculosis are seen in association with disseminated TB (miliary) but isolated pancreatic infection is very rare. Especially when present in immunocompetent hosts. In clinical and radiological evaluation, pancreatic TB may present as a pancreatic abscess, acute or chronic...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Physiological genomics

دوره 14 1  شماره 

صفحات  -

تاریخ انتشار 2003