system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All are chemokines except-
assistant
The correct answer is  histamine is a vasoactive amine, stored in the granules of mast cells, basophils and platelets. chemokines - ILs , TNF, INF gamma, MCP1, Eotaxin and PF4. .ref Robbins 9/e p 48