Medicine and Health Sciences Commons^™

Cellular Senescence And Their Role In Liver Metabolism In Health And Disease: Overview And Future Directions, Matthew Schade, Jacqueline A. Sanabria, Rodrigo Aguilar, Milad Modarresi, Brad Gillon, Zach Hunter, Jacqueline Fannin, Amrita Mallick, Henri Brunengraber, Juan Sanabria

Surgery

Chronic liver disease has globally risen mainly due to a prevalent Hepatitis C Virus (HCV) infection rate and an epidemic of obesity. It is estimated by the year 2030, 2.2 billion people around the world will be overweight and 1.1 billion people will be obese. Diabetes and obesity are the main risk factors for the development of the metabolic syndrome and in the liver of Non-Alcoholic Fatty Liver Disease (NAFLD) which could progress to NASH related cirrhosis and liver malignancy. At present there is not effective therapy for NASH besides loss of weight and exercise. Furthermore, optimal management of HCC …

Expression And Function Of Hypoxia Inducible Factor-1 Alpha In Human Melanoma Under Non-Hypoxic Conditions, Caroline N. Mills, Sandeep S. Joshi, Richard M. Niles

Biochemistry and Microbiology

Background

Hypoxia inducible factor-1 alpha (HIF-1α) protein is rapidly degraded under normoxic conditions. When oxygen tensions fall HIF-1α protein stabilizes and transactivates genes involved in adaptation to hypoxic conditions. We have examined the normoxic expression of HIF-1α RNA and protein in normal human melanocytes and a series of human melanoma cell lines isolated from radial growth phase (RGP), vertical growth phase (VGP) and metastatic (MET) melanomas.

Results

HIF-1α mRNA and protein was increased in RGP vs melanocytes, VGP vs RGP and MET vs VGP melanoma cell lines. We also detected expression of a HIF-1α mRNA splice variant that lacks part …