passages.id: split_9_validation_1575_passage
passages.type: progene_text
passages.text: CXC chemokines , macrophage inflammatory protein-2 ( MIP-2 ) and KC , ( a cloning designation based on ordinate and abscissa position ) as well as the CXC chemokine receptor , CXCR2 , are expressed in a variety of cells and tissues in adult mice .