CCL2 and intervertebral disk degenerative disorder: We found TSLP induced migration of immunocompetent cells to the disc in intervertebral disc disease by promoting the production of monocyte chemoattractant protein‐1 (MCP‐1) and macrophage inflammatory protein‐1 alpha (MIP‐1α) by the intervertebral disc and these cells may be involved in the resorption of herniated disc tissue.