What disorders arise when cell signaling fails to function properly? 

Cancer serves as a prime example of a disease that arises from disturbances in cellular signaling mechanisms within the body. One specific issue can occur in autocrine signaling, where cancer cells may produce an excessive amount of their own growth hormones. This overproduction can lead to unchecked cell division, contributing to tumor growth and proliferation. In addition to these autocrine signaling issues, cancer cells often experience a range of other signaling dysfunctions. These abnormalities can affect various pathways, preventing the cells from behaving like normal, healthy cells and enabling the cancer to progress and spread throughout the body.