Increased PELP1 expression in rat periodontal ligament tissue in response to estrogens treatment.

Abstract:

:Estrogens and their receptors are important factors involved in periodontal ligament (PDL) tissue health. As a regulator of estrogen receptors (ER), the proline-, glutamic acid-, and leucine-rich protein 1 (PELP1) may play a role in alveolar bone formation and PDL homeostasis. The aim of the present study was to observe PELP1 expression in rat PDL tissue during estrogen levels manipulations. Twenty-one 8-week old normal female Sprague-Dawley rats were randomly divided into three equal groups: sham-operated controls, ovariectomized (OVX) group, and OVX given 17β-estradiol intraperitoneally (OVX + E2) for 16 weeks. PELP1 expression was down-regulated in the OVX group and was up-regulated in the OVX + E2 group. Periodontal ligament fibroblast cells (PDLFCs) were isolated from PDL tissue, and characterized by immunohistochemical staining. Estradiol treatment of PDLFCs induced PELP1 protein level compared to untreated cells. PELP1 mRNA expression in estradiol-treated cells was relatively low at the beginning of treatment and then steadily increased from hour 4. In conclusion, results indicate that PELP1 is expressed in rat PDL tissue and PDLFCs, and that its expression is up-regulated during estrogen treatment.

journal_name

J Mol Histol

authors

Wang J,Zhu Q,Song S,Dong J,Shi L,Tao R,Ding Y,Hong B

doi

10.1007/s10735-013-9490-y

subject

Has Abstract

pub_date

2013-06-01 00:00:00

pages

347-56

issue

3

eissn

1567-2379

issn

1567-2387

journal_volume

44

pub_type

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