MUC5AC and cancer: While the role of phosphatidylserines is largely studied within the context of viruses and cancer cells leveraging phosphatidylserine signaling in immune cell evasion, the T cell/transmembrane, immunoglobulin, and mucin (TIM) family of proteins respond to phosphatidylserine and have been investigated for their roles in modulating T-cell responses in asthma53.