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Articles by K. J Kelly
Total Records ( 5 ) for K. J Kelly
  K. J Kelly , B Kluve Beckerman and J. H. Dominguez
 

Serum amyloid A protein (SAA) surges 1,000-fold in the blood of acute-phase animals, and yet its function during these acute events remains unknown. We report herein that SAA stimulates a developmental program in cultured NRK-52E cells that culminates in differentiated and functional tubules that feature a proximal tubule phenotype. We also found strong SAA expression in states of tubule formation (in utero stage) and regeneration (recovery from ischemia-reperfusion injury). These data lend support to a novel view of a more localized renal acute-phase reaction, where renal SAA may act as a paracrine or autocrine molecule that promotes tubule formation during development and repair.

  P Brader , K. J Kelly , N Chen , Y. A Yu , Q Zhang , P Zanzonico , E. M Burnazi , R. E Ghani , I Serganova , H Hricak , A. A Szalay , Y Fong and R. G. Blasberg
 

Purpose: Oncolytic viral therapy continues to be investigated for the treatment of cancer, and future studies in patients would benefit greatly from a noninvasive modality for assessing virus dissemination, targeting, and persistence. The purpose of this study was to determine if a genetically modified vaccinia virus, GLV-1h99, containing a human norepinephrine transporter (hNET) reporter gene, could be sequentially monitored by [123I]metaiodobenzylguanidine (MIBG) -camera and [124I]MIBG positron emission tomography (PET) imaging.

Experimental Design: GLV-1h99 was tested in human malignant mesothelioma and pancreatic cancer cell lines for cytotoxicity, expression of the hNET protein using immunoblot analysis, and [123I]MIBG uptake in cell culture assays. In vivo [123I]MIBG -camera and serial [124I]MIBG PET imaging was done in MSTO-211H orthotopic pleural mesothelioma tumors.

Results: GLV-1h99 successfully infected and provided dose-dependent levels of transgene hNET expression in human malignant mesothelioma and pancreatic cancer cells. The time course of [123I]MIBG accumulation showed a peak of radiotracer uptake at 48 hours after virus infection in vitro. In vivo hNET expression in MSTO-211H pleural tumors could be imaged by [123I]MIBG scintigraphy and [124I]MIBG PET 48 and 72 hours after GLV-1h99 virus administration. Histologic analysis confirmed the presence of GLV-1h99 in tumors.

Conclusion: GLV-1h99 shows high mesothelioma tumor cell infectivity and cytotoxic efficacy. The feasibility of imaging virus-targeted tumor using the hNET reporter system with [123I]MIBG -camera and [124I]MIBG PET was shown in an orthotopic pleural mesothelioma tumor model. The inclusion of human reporter genes into recombinant oncolytic viruses enhances the potential for translation to clinical monitoring of oncolytic viral therapy.

 
 
 
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