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2014 Fiscal Year Final Research Report

Exploration of seeds for development of a new drug targeting Bone-Vascular-Spleen axis

Research Project

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Project/Area Number 25670793
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Functional basic dentistry
Research InstitutionMatsumoto Dental University

Principal Investigator

UDAGAWA Nobuyuki  松本歯科大学, 歯学部, 教授 (70245801)

Co-Investigator(Kenkyū-buntansha) NINOMIYA Tadashi  松本歯科大学, 総合歯科医学研究所, 講師 (00360222)
NAKAMICHI Yuko  松本歯科大学, 総合歯科医学研究所, 講師 (20350829)
NAKAMURA Midori  松本歯科大学, 歯学部, 准教授 (90278177)
UEHARA Syunsuke  松本歯科大学, 歯学部, 講師 (90434480)
Project Period (FY) 2013-04-01 – 2015-03-31
Keywords破骨細胞 / 骨芽細胞 / マクロファージ / 脾臓 / RANKL / M-CSF / IL-34
Outline of Final Research Achievements

(1)To clarify the role of spleen in bone metabolism, M-CSF-deficient mice and wild-type mice were subjected to splenectomy or a sham-operation. Splenectomy completely suppressed osteoclastogenesis in M-CSF-deficient mice. In contrast, splenectomy moderately suppressed osteoclastogenesis in wild-type mice.
(2)Comparing the gene expression profiles of IL-34-positive and IL-34-negative vascular endothelial cells identifies differentially expressed genes. We focused on top-ranked genes which possess leading signal peptide for secretion and membrane-anchoring.We are now addressing functional analyses of these genes.
(3)To elucidate mechanisms underlying the age-associated increase of IL-34 expressions in several tissues, we tried to establish the culture system for IL-34-positive vascular endothelial cells. However, the expression level of IL-34 gradually decreased in long-term culture.

Free Research Field

口腔生化学

URL: 

Published: 2016-06-03  

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