RRC ID 58714
Author Kohara Y, Haraguchi R, Kitazawa R, Kitazawa S.
Title Knockdown of Lrp1 in RAW264 cells inhibits osteoclast differentiation and osteoclast-osteoblast interactions in vitro.
Journal Biochem Biophys Res Commun
Abstract Low density lipoprotein receptor-related protein 1 (LRP1), a multifunctional cell surface protein, is expressed in bone marrow-derived macrophages. While LRP1 is thought to be a suppressor of osteoclast differentiation at late stages, its function at early stages remains unclear. Here we demonstrate that Lrp1 stable knockdown by lentiviral short hairpin RNA in macrophage cell line RAW264 cells inhibited RANKL-induced osteoclast formation and osteoclastic master transcription factor Nfatc1 mRNA expression as assessed by quantitative RT-PCR. Furthermore, knockdown of the Lrp1 gene suppressed not only differentiation, but also proliferation, and inhibitory effects on osteoblastic ALP activity by osteoclast-derived humoral factors. Thus, we propose that LRP1 in macrophages is required for both differentiation into osteoclasts and osteoclast-osteoblast interactions.
Volume 523(4)
Pages 961-965
Published 2020-3-19
DOI 10.1016/j.bbrc.2020.01.065
PII S0006-291X(20)30134-0
PMID 31964526
MeSH Animals Cell Communication* Cell Differentiation* Cell Proliferation Gene Knockdown Techniques* Low Density Lipoprotein Receptor-Related Protein-1 / metabolism* Mice Mice, Inbred C57BL Osteoblasts / cytology* Osteoclasts / cytology* Osteoclasts / metabolism* RAW 264.7 Cells
IF 2.985
Times Cited 2
Resource
Human and Animal Cells RAW 264(RCB0535) ST2(RCB0224)