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1.
Chinese Journal of Stomatology ; (12): 739-742, 2006.
Artigo em Chinês | WPRIM | ID: wpr-292975

RESUMO

<p><b>OBJECTIVE</b>To establish the bone marrow stem cells (MSC) model which could highly express the insulin-like growth factor 1 (IGF-1) transfected by dog's IGF-1 gene.</p><p><b>METHODS</b>pIRES2-EGFP-IGF-1 was transfected into MSC by lipofectamine. Positive clones were selected with G418. The expression of IGF-1 protein in the MSC was determined by immunohistochemistry and Western blot analysis. The IGF-1 in the supernatant of the transfected MSC was detected by sandwich-in ELISA. The periodontal ligament cells (PDLC) were cultured in the supernatant of the transfected MSC. The changes of PDLC' proliferation were observed by MTT.</p><p><b>RESULTS</b>IGF-1-transfected MSC could apparently express IGF-1. The IGF-1 protein in the supernatant of the transfected MSC was confirmed by sandwich-in ELISA. IGF-1 could promote the PDLC' proliferation.</p><p><b>CONCLUSIONS</b>The MSC transfected by dog's IGF-1 gene can highly express IGF-1, which may lay the foundation for further study on periodontal regeneration.</p>


Assuntos
Animais , Cães , Masculino , Células da Medula Óssea , Biologia Celular , Metabolismo , Células Cultivadas , Vetores Genéticos , Fator de Crescimento Insulin-Like I , Genética , Metabolismo , Células-Tronco Mesenquimais , Biologia Celular , Metabolismo , Transfecção
2.
Chinese Journal of Endocrinology and Metabolism ; (12)1986.
Artigo em Chinês | WPRIM | ID: wpr-676520

RESUMO

The expressions of vimentin and NF-?B were detected in thyroid tissue by immuno- histoehemistry in 26 cases with Hashimoto′s thyroiditis and 9 normal subjects.The results showed that there was a significantly increased expression of vimentin in Hashimoto′s thyroiditis as compared with the normal controls.It indicated that epithelial-mesenchymal transformation existed in follicular epithelial ceils of Hashimoto′s thyroiditis. Furthermore,the expression of vimentin was closely related with NF-?B.

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