What are factors contributing to cancer cachexia?

Cancer and treatment: The greek words kakos="bad things", & hexus="state of being. Cancer cachexia is characterized by diminished nutrient intake and progressive tissue depletion, both of which lead to weight loss. Cytokine activation and tumor-derived cachexia-inducing substances are thought to be the causes.In some cases, cancer treatment may also contribute to loss of lean body mass in patients with advanced cancer.

Multiple: Increased use of energy by tumor, release of cytokinces from tumor, loss of appetite, increased metabolic rate contribute to cachexia in tumors.