Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development

Mikala Egeblad, H. C Jennifer Shen, Danielle J. Behonick, Lisa Wilmes, Alexandra Eichten, Lidiya V. Korets, Farrah Kheradmand, Zena Werb, Lisa Coussens

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Recessive inactivating mutations in human matrix metalloproteinase 2 (MMP2, gelatinase A) are associated with syndromes that include abnormal facial appearance, short stature, and severe bone loss. Mmp2-/- mice have only mild aspects of these abnormalities, suggesting that MMP2 function is redundant during skeletal development in the mouse. Here, we report that Mmp2-/- mice with additional mutations that render type I collagen resistant to collagenase-mediated cleavage to TCA and TCB fragments (Col1a1r/r mice) have severe developmental defects resembling those observed in MMP2-null humans. Composite Mmp2 -/-;Col1a1r/r mice were born in expected Mendelian ratios but were half the size of wild-type, Mmp2-/-, and Col1a1 r/r mice and failed to thrive. Furthermore, composite Mmp2 -/-;Col1a1r/r animals had very abnormal craniofacial features with shorter snouts, bulging skulls, incompletely developed calvarial bones and unclosed cranial sutures. In addition, trabecular bone mass was reduced concomitant with increased numbers of bone-resorbing osteoclasts and osteopenia. In vitro, MMP2 had a unique ability among the collagenolytic MMPs to degrade mutant collagen, offering a possible explanation for the genetic interaction between Mmp2 and Col1a1r. Thus, because mutations in the type I collagen gene alter the phenotype of mice with null mutations in Mmp2, we conclude that type I collagen is an important modifier gene for Mmp2.

Original languageEnglish (US)
Pages (from-to)1683-1693
Number of pages11
JournalDevelopmental Dynamics
Volume236
Issue number6
DOIs
StatePublished - Jun 2007
Externally publishedYes

Fingerprint

Matrix Metalloproteinase 2
Collagen Type I
Mutation
Bone and Bones
Cranial Sutures
Modifier Genes
Metabolic Bone Diseases
Collagenases
Osteoclasts
Matrix Metalloproteinases
Skull
Collagen
Phenotype
Genes

Keywords

  • Matrix metalloproteinase
  • Osteopenia
  • Type I collagen

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

Cite this

Egeblad, M., Shen, H. C. J., Behonick, D. J., Wilmes, L., Eichten, A., Korets, L. V., ... Coussens, L. (2007). Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development. Developmental Dynamics, 236(6), 1683-1693. https://doi.org/10.1002/dvdy.21159

Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development. / Egeblad, Mikala; Shen, H. C Jennifer; Behonick, Danielle J.; Wilmes, Lisa; Eichten, Alexandra; Korets, Lidiya V.; Kheradmand, Farrah; Werb, Zena; Coussens, Lisa.

In: Developmental Dynamics, Vol. 236, No. 6, 06.2007, p. 1683-1693.

Research output: Contribution to journalArticle

Egeblad, M, Shen, HCJ, Behonick, DJ, Wilmes, L, Eichten, A, Korets, LV, Kheradmand, F, Werb, Z & Coussens, L 2007, 'Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development', Developmental Dynamics, vol. 236, no. 6, pp. 1683-1693. https://doi.org/10.1002/dvdy.21159
Egeblad M, Shen HCJ, Behonick DJ, Wilmes L, Eichten A, Korets LV et al. Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development. Developmental Dynamics. 2007 Jun;236(6):1683-1693. https://doi.org/10.1002/dvdy.21159
Egeblad, Mikala ; Shen, H. C Jennifer ; Behonick, Danielle J. ; Wilmes, Lisa ; Eichten, Alexandra ; Korets, Lidiya V. ; Kheradmand, Farrah ; Werb, Zena ; Coussens, Lisa. / Type I collagen is a genetic modifier of matrix metalloproteinase 2 in murine skeletal development. In: Developmental Dynamics. 2007 ; Vol. 236, No. 6. pp. 1683-1693.
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