MMP-2 Contributes to the Development of the Mouse Ventral Prostate by Impacting Epithelial Growth and Morphogenesis

Autor(es)

Bruni-Cardoso, Alexandre ^[1] ; Lynch, Conor C. ^{[2, 3]} ; Rosa-Ribeiro, Rafaela ^[1] ; Matrisian, Lynn M. ^[2] ; Carvalho, Hernandes F. ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] State Univ Campinas UNICAMP, Dept Anat Cell Biol Physiol & Biophys, Campinas, SP - Brazil

^[2] Vanderbilt Univ, Dept Canc Biol, Nashville, TN - USA

^[3] Vanderbilt Univ, Dept Orthopaed & Rehabil, Nashville, TN - USA

^[4] State Univ Campmas UNICAMP, Natl Inst Photon Appl Cell Biol INFABIC, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: DEVELOPMENTAL DYNAMICS; v. 239, n. 9, p. 2386-2392, SEP 2010.
• Citações Web of Science: 13

Resumo

Epithelial growth, branching, and canalization are important morphogenetic events of the rodent ventral prostate (VP) that take place during the first postnatal week. In this study, we evaluated the effect of knocking out MMP-2 (MMP-2(-/-)), by examining developmental and structural aspects of the VP in MMP-2(-/-) mice. Neonate (day 6) MMP-2(-/-) mice showed fewer epithelial tips, a lower epithelial cell proliferation rate, and also reticulin fiber accumulation. The VP of adult MMP-2-/- mice showed lower relative weight, smaller epithelial and smooth-muscle cell volume, and a larger amount of thicker reticulin fibers. No differences in cell proliferation or apoptotic index were noted between adult MMP-2(-/-) and wild-type mice. MMP-9 was found in the adult MMP-2(-/-), but not in the wild-type. In conclusion, MMP-2 function is essential for the epithelial morphogenesis of the mouse VP, and expression of MMP-9 is not sufficient for acquisition of the normal adult histology. Developmental Dynamics 239:2386-2392, 2010. (c) 2010 Wiley-Liss, Inc. (AU)

• Processo FAPESP: 07/07564-6 - Regulação da função das metaloproteinases de matriz e de seus inibidores frente à modulação hormonal durante o desenvolvimento prostático in vitro
• Beneficiário: Hernandes Faustino de Carvalho
• Modalidade de apoio: Auxílio à Pesquisa - Regular