{Reference Type}: Journal Article {Title}: Zebrafish as a New Model to Study the Crosstalk between Tumor and Host Metabolism. {Author}: Montal E;White RM; {Journal}: Trends Cancer {Volume}: 7 {Issue}: 8 {Year}: 08 2021 {Factor}: 19.161 {DOI}: 10.1016/j.trecan.2021.06.006 {Abstract}: The mechanism of metabolic crosstalk between different tissues in the host remains poorly understood but is likely to play important roles in tumor growth and cachexia. A recent study from Naser, Jackstadt, et al. utilizes isotope tracing in a zebrafish melanoma model and finds that tumors secrete alanine into circulation, which is taken up by the liver and used for gluconeogenesis.