2018/03/13 by Mara Scussolini, Vanessa Cossu, Scussolini, Mara +7
Biochemistry, Genetics and Molecular Biology · Mathematics · Medicine · #34A30 #62P10 #65R32 #92C45 #Cancer, Hypoxia, and Metabolism #FOS: Biological sciences #MRI in cancer diagnosis #Mathematical Biology Tumor Growth #Medical Imaging Techniques and Applications #Tissues and Organs (q-bio.TO) #msc:34A30 #msc:62P10 #msc:65R32 #msc:92C45 #q-bio.TO
paper · pdf · doi:10.48550/arxiv.1803.05025
arxiv created 2018/03/13 · openalex publication_date 2018/03/13 · arxiv updated 2018/03/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The radioactive glucose analogue 2-deoxy-2-[18F]fluoro-D-glucose (FDG) is widely used to reconstruct glucose metabolism and other biological functions in cells and tissues. The analysis of data on the time course of FDG tracer distribution is performed by the use of appropriate compartmental models. Motivated by recent results in cell biochemistry, we describe a new compartmental model aiming at the reconstruction of tracer kinetics in cells and tissues, which emphasizes the different roles of the cytosol and of the endoplasmic reticulum. Two applications of the new model are examined, that are concerned with real data from cancer cell cultures in vitro, and cancer tissues in vivo. The results are compared with those obtained through application of more standard compartmental models against the same datasets and appear to be in a better agreement with respect to recent biochemical experimental evidence. In particular, it is shown that tracer tends to accumulate in the endoplasmic reticulum, rather than cytosol, and that the rate of phosphorylation is higher than predicted by current models.