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Published in: Medical Oncology 4/2023

Open Access 01-04-2023 | Multiple Myeloma | Original Paper

RUNX2 promotes the suppression of osteoblast function and enhancement of osteoclast activity by multiple myeloma cells

Authors: Beihui Huang, Huixin Liu, Szehoi Chan, Junru Liu, Jingli Gu, Meilan Chen, Lifen Kuang, Xiaozhe Li, Xingding Zhang, Juan Li

Published in: Medical Oncology | Issue 4/2023

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Abstract

RUNX2 is a transcription factor that participates in osteoblast differentiation and chondrocyte maturation and plays an important role in the invasion and metastasis of cancers. With the deepening of research, evidence has indicated the correlation between RUNX2 and bone destruction in cancers. However, the mechanisms underlying its role in multiple myeloma remain unclear. By observing the induction effects of conditioned medium from myeloma cells on preosteoblasts (MC3T3-E1) and preosteoclasts (RAW264.7) and constructing myeloma-bearing mice, we found that RUNX2 promotes bone destruction in multiple myeloma. In vitro, conditioned medium from RUNX2-overexpressing myeloma cells reduced osteoblast activity and increased osteoclast activity. In vivo, RUNX2 expression was positively correlated with bone loss in myeloma-bearing mice. These results suggest that therapeutic inhibition of RUNX2 may protect against bone destruction by maintaining the balance between osteoblast and osteoclast activity in multiple myeloma.
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Metadata
Title
RUNX2 promotes the suppression of osteoblast function and enhancement of osteoclast activity by multiple myeloma cells
Authors
Beihui Huang
Huixin Liu
Szehoi Chan
Junru Liu
Jingli Gu
Meilan Chen
Lifen Kuang
Xiaozhe Li
Xingding Zhang
Juan Li
Publication date
01-04-2023
Publisher
Springer US
Published in
Medical Oncology / Issue 4/2023
Print ISSN: 1357-0560
Electronic ISSN: 1559-131X
DOI
https://doi.org/10.1007/s12032-023-01960-8

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