Steroidal regulation of uterine edema and tissue inhibitors of metalloproteinase (TIMP)-3 messenger RNA expression is altered in TIMP-1-deficient mice.
Tissue inhibitors of metalloproteinases (TIMPs) are expressed within the uteri of virtually all species where they are postulated to control extracellular matrix turnover, cellular apoptosis, and proliferation. The objective of the current study was to examine the steroidal regulation of uterine TIMP expression and to determine the potential role of the TIMP-1 gene product in this regulation. To accomplish these goals, ovariectomized female TIMP-1 wild-type and null mice were treated with estradiol, progesterone, or estradiol and progesterone and killed at various times after steroid administration. Estradiol induced a significant reduction in uterine TIMP-3 expression in wild-type mice at 8 and 24 h post-steroid administration, but the ability of this steroid to decrease TIMP-3 expression was impaired in the uteri of TIMP-1 null mice. Further, estrogen-induced uterine wet-weight gain/edema was enhanced in the TIMP-1 null mice, and the antiestrogen compound ICI 182780 or progesterone could only partially block this estrogenic effect. It is concluded from this study that steroidal modulation of uterine TIMP-3 expression and regulation of wet-weight gain/edema are altered in TIMP-1 null mice. These observations suggest that steroids induce uterine TIMP-1 expression and, in turn, that TIMP-1 influences TIMP-3 mRNA expression and uterine edema.
Nothnick
Warren B
WB
Departments of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, Kansas 66160, USA. wnothnic@kumc.edu
Zhang
Xuan
X
Zhou
Han-E
HE
D000818:Animals; D004487:Edema / Q000473:pathology / Q000503:physiopathology*; D004958:Estradiol / Q000031:analogs & derivatives* / Q000494:pharmacology*; D004965:Estrogen Antagonists / Q000494:pharmacology; D005260:Female; D000077267:Fulvestrant; D015870:Gene Expression / Q000187:drug effects / Q000502:physiology; D051379:Mice; D008817:Mice, Mutant Strains; D009929:Organ Size; D010052:Ovariectomy; D011374:Progesterone / Q000494:pharmacology*; D011506:Proteins / Q000235:genetics; D012333:RNA, Messenger / Q000032:analysis; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000235:genetics*; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000235:genetics; D019717:Tissue Inhibitor of Metalloproteinase-3 / Q000235:genetics*; D019714:Tissue Inhibitor of Metalloproteinases; D014599:Uterus / Q000187:drug effects / Q000473:pathology / Q000503:physiopathology*; D000097792:Tissue Inhibitor of Metalloproteinase-4
D004958:Estradiol; D004965:Estrogen Antagonists; D000077267:Fulvestrant; D011374:Progesterone; D011506:Proteins; D012333:RNA, Messenger; D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; D019717:Tissue Inhibitor of Metalloproteinase-3; D019714:Tissue Inhibitor of Metalloproteinases; D000097792:Tissue Inhibitor of Metalloproteinase-4