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파골세포 분화에 관여하는 RAW 264.7 세포내 활성물질 연구Cellular Proteins Related to Osteoclastogenesis in RAW 264.7 Cells

Other Titles
Cellular Proteins Related to Osteoclastogenesis in RAW 264.7 Cells
Authors
유미연윤유나이나리최순영
Issue Date
Dec-2007
Publisher
대한암예방학회
Keywords
Osteoclast; Macrophage; Osteoclastogenesis; Differentially expressed gene screening
Citation
대한암예방학회지, v.12, no.4, pp 310 - 318
Pages
9
Journal Title
대한암예방학회지
Volume
12
Number
4
Start Page
310
End Page
318
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/8044
ISSN
2288-3649
2288-3657
Abstract
There are many factors related to osteoclastogenesis. Above all, chemokines and related ligands that are known to be related to immune response mechanisms have been studied by many scientists. This study investigates proteins that increase or decrease osteoclastogenesis. First, differentiation was induced in mouse monocyte/macrophage RAW 264.7 cells with TNF-related activation-induced cytokine (TRANCE, 400 ng/ml) and macrophage colony-stimulating factor (M-CSF, 50 ng/ml) for six days using purified total RNA. Differentially expressed gene screening was then done after synthesizing cDNA with total RNA. From the screening results, 10 differentially expressed genes were found during osteoclast differentiation. These were identified through a BLAST search. The V-ATPase and osteopontin that was identified by this screening is known to play an important role in bone resorption. Following the screening procedure, expression was confirmed by RT-PCR. In addition, other genes were identified via the BLAST search. Among them was RhoC, which is in the Ras homolog gene family (member C). The Ras family has been associated with the effects of tumor expression and differentiation, as well as with motility and resorption of osteoclasts. However, it is not known to be related to osteoclastogenesis. Finally, proteins related to RhoC were studied by immunoprecipitation during osteoclast differentiation. After a Maldi-TOF assay, it was determined that β-actin is related to the actin-rich ring. Thus, further study of β-actin is necessary. (Cancer Prev Res 12, 310-318, 2007) Key Words: Osteoclast, Macrophage, Osteoclastogenesis, Differentially expressed gene screening
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