Bone growth and turnover in progesterone receptor knockout mice
- PMID: 18276762
- PMCID: PMC2329269
- DOI: 10.1210/en.2007-1247
Bone growth and turnover in progesterone receptor knockout mice
Abstract
The role of progesterone receptor (PR) signaling in skeletal metabolism is controversial. To address whether signaling through the PR is necessary for normal bone growth and turnover, we performed histomorphometric and microcomputed tomography analyses of bone from homozygous female PR knockout (PRKO) mice at 6, 12, and 26 wk of age. These mice possess a null mutation of the PR locus, which blocks the gene expression of A and B isoforms of PR. Body weight gain, uterine weight gain, and tibia longitudinal bone growth were normal in PRKO mice. In contrast, total, cancellous, and cortical bone mass were increased in the humerus of 12-wk-old PRKO mice, whereas cortical and cancellous bone mass in the tibia was normal. At 26 wk of age, cancellous bone area in the proximal tibia metaphysis of PRKO mice was 153% greater than age matched wild-type mice. The improved cancellous bone balance in 6-month-old PRKO mice was associated with elevated bone formation and a tendency toward reduced osteoclast perimeter. Taken together, these findings suggest that PR signaling in mice is not essential for bone growth and turnover. However, at some skeletal sites, PR signaling attenuates the accumulation of cortical and cancellous bone mass during adolescence.
Figures
Similar articles
-
Inhibition of the progesterone nuclear receptor during the bone linear growth phase increases peak bone mass in female mice.PLoS One. 2010 Jul 1;5(7):e11410. doi: 10.1371/journal.pone.0011410. PLoS One. 2010. PMID: 20625385 Free PMC article.
-
Skeletal alterations in hypophysectomized rats: I. A histomorphometric study on tibial cancellous bone.Anat Rec. 1995 Apr;241(4):505-12. doi: 10.1002/ar.1092410408. Anat Rec. 1995. PMID: 7604965
-
Characterization of bone structure in leptin receptor-deficient Zucker (fa/fa) rats.J Bone Miner Res. 2003 Sep;18(9):1605-11. doi: 10.1359/jbmr.2003.18.9.1605. J Bone Miner Res. 2003. PMID: 12968669
-
Use of PRKO mice to study the role of progesterone in mammary gland development.J Mammary Gland Biol Neoplasia. 1997 Oct;2(4):343-54. doi: 10.1023/a:1026343212187. J Mammary Gland Biol Neoplasia. 1997. PMID: 10935022 Review.
-
Progesterone receptors in reproduction: functional impact of the A and B isoforms.Steroids. 2000 Oct-Nov;65(10-11):571-7. doi: 10.1016/s0039-128x(00)00115-x. Steroids. 2000. PMID: 11108861 Review.
Cited by
-
Intestinal tumorigenesis is not affected by progesterone signaling in rodent models.PLoS One. 2011;6(7):e22620. doi: 10.1371/journal.pone.0022620. Epub 2011 Jul 27. PLoS One. 2011. PMID: 21818351 Free PMC article.
-
Whole-Genome Sequencing Coupled to Imputation Discovers Genetic Signals for Anthropometric Traits.Am J Hum Genet. 2017 Jun 1;100(6):865-884. doi: 10.1016/j.ajhg.2017.04.014. Epub 2017 May 25. Am J Hum Genet. 2017. PMID: 28552196 Free PMC article.
-
Room temperature housing results in premature cancellous bone loss in growing female mice: implications for the mouse as a preclinical model for age-related bone loss.Osteoporos Int. 2016 Oct;27(10):3091-101. doi: 10.1007/s00198-016-3634-3. Epub 2016 May 17. Osteoporos Int. 2016. PMID: 27189604 Free PMC article.
-
Sex-Dependent, Osteoblast Stage-Specific Effects of Progesterone Receptor on Bone Acquisition.J Bone Miner Res. 2017 Sep;32(9):1841-1852. doi: 10.1002/jbmr.3186. Epub 2017 Jul 13. J Bone Miner Res. 2017. PMID: 28569405 Free PMC article.
-
Bone Marrow Adipose Tissue Deficiency Increases Disuse-Induced Bone Loss in Male Mice.Sci Rep. 2017 Apr 12;7:46325. doi: 10.1038/srep46325. Sci Rep. 2017. PMID: 28402337 Free PMC article.
References
-
- Prior JC 1990 Progesterone as a bone-trophic hormone. Endocr Rev 11:386–398 - PubMed
-
- Gallagher JC, Kable WT, Goldgar D 1991 Effect of progestin therapy on cortical and trabecular bone: comparison with estrogen. Am J Med 90:171–178 - PubMed
-
- Lindsay R, Hart DM, Purdie D, Ferguson MM, Clark AS, Kraszewski A 1978 Comparative effects of oestrogen and a progestogen on bone loss in postmenopausal women. Clin Sci Mol Med 54:193–195 - PubMed
-
- Lobo RA, McCormick W, Singer F, Roy S 1984 Depo-medroxyprogesterone acetate compared with conjugated estrogens for the treatment of postmenopausal women. Obstet Gynecol 63:1–5 - PubMed
-
- Gallagher J 1981 Biochemical effects of estrogen and progesterone on calcium metabolism. In: DeLuca H, Parfitt A, Jee W, Johnston C, eds. Recent advances in osteoporosis. Baltimore: University Park Press; 215–224
Publication types
MeSH terms
Substances
Grants and funding
LinkOut - more resources
Full Text Sources
Molecular Biology Databases
Research Materials