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  • Title: Enhancing effects of fibroblast growth factor on the proliferation of salivary gland carcinoma cells and salivary gland carcinogenesis.
    Author: Yura Y, Yoshioka Y, Yamamoto S, Kusaka J, Bando T, Yoshida H, Sato M.
    Journal: J Oral Pathol Med; 2001 Mar; 30(3):159-67. PubMed ID: 11271631.
    Abstract:
    The proliferation of mouse submandibular gland carcinoma YT-12 cells was stimulated by endothelial cell growth factor (ECGF)/bovine brain-derived acidic fibroblast growth factor (aFGF) and recombinant human aFGF. To determine whether aFGF was capable of modifying salivary gland carcinogenesis, the effect of brain-derived aFGF was examined in vivo. Mice in Groups 1 and 2 were injected with 9,10-dimethyl-1,2-benzanthracene (DMBA) into the left submandibular gland, and then Group 1 mice received bovine brain-derived aFGF and Group 2 mice received vehicle subcutaneously for 10 weeks. Group 3 and 4 mice received either bovine brain-derived aFGF or vehicle only. Sixteen weeks after the start of the experiment, the incidence of submandibular gland carcinomas in Group 1 was significantly greater than that in Group 2. Immunohistochemical study indicated that ducts in the normal submandibular glands and carcinomas showed positive staining with anti-aFGF antibody. Immunoblot and reverse transcriptase-polymerase chain reaction (RT-PCR) analysis revealed the expression of aFGF in these tissues. FGF receptor (FGFR)-1 and FGFR-4 were detectable in the mouse submandibular glands and carcinomas. These findings suggest that bovine brain-derived aFGF stimulates the proliferation of submandibular gland carcinoma cells and promotes mouse submandibular gland carcinogenesis.
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