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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Orabi, Abrahim I. Guo, Ping Prasadan, Krishna Jin, Shunqian Javed, Tanveer A. Sah, Swati Good, Misty L. Husain, Sohail Z. Xiao, Xiangwei Lemon, Kathryn L. Gittes, George K. |
| Description | Author Affiliation: Orabi AI ( From the Department of Pediatrics and.); Sah S ( From the Department of Pediatrics and.); Javed TA ( From the Department of Pediatrics and.); Lemon KL ( From the Department of Pediatrics and.); Good ML ( From the Department of Pediatrics and.); Guo P ( Surgery, Children's Hospital of Pittsburgh of UPMC and the University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224.); Xiao X ( Surgery, Children's Hospital of Pittsburgh of UPMC and the University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224.); Prasadan K ( Surgery, Children's Hospital of Pittsburgh of UPMC and the University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224.); Gittes GK ( Surgery, Children's Hospital of Pittsburgh of UPMC and the University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224.); Jin S ( From the Department of Pediatrics and.); Husain SZ ( From the Department of Pediatrics and sohail.husain@chp.edu.) |
| Abstract | Nuclear factor κB (NF-κB) is an important signaling molecule that plays a critical role in the development of acute pancreatitis. Current methods for examining NF-κB activation involve infection of an adenoviral NF-κB-luciferase reporter into cell lines or electrophoretic mobility shift assay of lysate. The use of adeno-associated viruses (AAVs) has proven to be an effective method of transfecting whole organs in live animals. We examined whether intrapancreatic duct infusion of AAV containing an NF-κB-luciferase reporter (AAV-NF-κB-luciferase) can reliably measure pancreatic NF-κB activation. We confirmed the infectivity of the AAV-NF-κB-luciferase reporter in HEK293 cells using a traditional luciferase readout. Mice were infused with AAV-NF-κB-luciferase 5 weeks before induction of pancreatitis (caerulein, 50 µg/kg). Unlike transgenic mice that globally express NF-κB-luciferase, AAV-infused mice showed a 15-fold increase in pancreas-specific NF-κB bioluminescence following 12 h of caerulein compared with baseline luminescence (p < 0.05). The specificity of the NF-κB-luciferase signal to the pancreas was confirmed by isolating the pancreas and adjacent organs and observing a predominant bioluminescent signal in the pancreas compared with liver, spleen, and stomach. A complementary mouse model of post-ERCP-pancreatitis also induced pancreatic NF-κB signals. Taken together these data provide the first demonstration that NF-κB activation can be examined in a live, dynamic fashion during pancreatic inflammation. We believe this technique offers a valuable tool to study real-time activation of NF-κB in vivo. |
| ISSN | 00219258 |
| e-ISSN | 1083351X |
| Journal | Journal of Biological Chemistry |
| Issue Number | 18 |
| Volume Number | 290 |
| Language | English |
| Publisher | American Society for Biochemistry and Molecular Biology (United States) |
| Publisher Date | 2015-05-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Dependovirus Genetics Luminescent Measurements Molecular Imaging NF-kappa B Metabolism Pancreas Virology Animals Ceruletide Physiology HEK293 Cells Luciferases Mice Mice, Transgenic Organ Specificity Signal Transduction Research Support, N.I.H., Extramural Biochemistry Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Molecular Biology |
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