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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Heparanase-1 activity and the early postnatal prostate development

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Author(s):
Barbosa, Guilherme Oliveira [1] ; Bruni-Cardoso, Alexandre [2] ; da Silva Pinhal, Maria Aparecida [3] ; Augusto, Taize Machado [4] ; Carvalho, Hernandes F. [1]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, Dept Biol Estrut & Func, Inst Biol, Campinas, SP - Brazil
[2] Univ Sao Paulo, Inst Quim, Dept Bioquim, Butanta, SP - Brazil
[3] Fundacao ABC, Fac Med, Santo Andre, SP - Brazil
[4] Fac Med Jundiai, Dept Clin, Jundiai, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: DEVELOPMENTAL DYNAMICS; v. 248, n. 3, p. 211-220, MAR 2019.
Web of Science Citations: 1
Abstract

Ventral prostate (VP) morphogenesis starts during embryonic development and continues for the first three postnatal weeks. Heparan sulfate (HS) affects paracrine signaling. Heparanase-1 (HPSE) is the only enzyme capable of cleaving HS. HPSE releases the HS bioactive fragment and mobilizes growth factors. Little is known, however, about HS turnover and HPSE function during VP morphogenesis. In this study, we measured HSPG expression and analyzed the expression and distribution of HPSE in the rat VP. HPSE was predominantly expressed by the VP epithelium. The VP was treated with heparin in ex vivo cultures to interfere with HS and resulted in delayed epithelial growth. Hpse knockdown using siRNA delayed epithelial growth in the first postnatal week ex vivo, which was similar to treating with the lower concentration of heparin. Hpse silencing was related to changes in HS chain length (as determined by size-exclusion chromatography, up-regulation of Mmp9, and down-regulation of Mmp2 expression). It also down-modulated ERK1/2 phosphorylation, suggesting a reduction in signaling, likely due to decreased HS cleavage and growth factor bioavailability. Our results showed that HPSE played a role in early epithelial growth during the first week of VP postnatal development. Developmental Dynamics 248:211-220, 2019. (c) 2019 Wiley Periodicals, Inc. (AU)

FAPESP's process: 12/17657-0 - Heparanase activity and its role in the modulation of extracellular signaling in prostate development
Grantee:Guilherme Oliveira Barbosa
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 09/16150-6 - Androgen regulation, sinalization and cellular interactions in prostate development, physiology and regression
Grantee:Hernandes Faustino de Carvalho
Support Opportunities: Research Projects - Thematic Grants