They respond chemotactically to histamine, immune complexes, and eosinophil chemotactic factor of anaphylaxis, a substancereleased by degranulating mast cells.
In biology, an extracellular matrix is a substance produced and released by cells that gives structural and biochemical support to surrounding cells.
在生物学中，细胞外基质是细胞产生和释放的一种物质，它能够向周围细胞提供结构和生化支持。
3
The hyperglycemic substance was named "glucagon," and it was subsequently determined that glucagon is a 29-amino acid peptide synthesized and released from pancreatic -cells.