TIMP3 and pituitary tumor: Analysis of the expression of the four members of the TIMP family (TIMP-1, -2, -3, and -4) performed in normal anterior pituitaries and pituitary tumors showed that TIMP-3 was the most abundant TIMP in normal anterior pituitaries and that TIMP-3 expression positively correlated with the fibrous matrix deposition found in pituitary tumors [85].