Effects of calcitonin gene-related peptide on osteoprotegerin and RANKL expressions in osteoblast cells in bone metastasis microenvironment of breast cancer in vitro / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy
;
(6)1995.
Article
in Chinese
| WPRIM
| ID: wpr-595175
ABSTRACT
Objective:
To observe the effect of calcitonin gene-related peptide (CGRP) on the expression of osteoprotegerin (OPG) and receptor activator of nuclear factor-kappaB ligand (RANKL) in osteoblast cells through an in vitro breast cancer cell and osteoblast cell co-culture system.Methods:
The metastatic breast cancer MDA-MB-231 or MDA-MB-435 cells were co-cultured with osteoblast MG63 cells to establish an in vitro microenvironment of bone metastasis of breast cancer. After treated with CGRP(1?108 mol/L),OPG and RANKL mRNA and protein expressions in osteoblast MG63 cells were examined by RT-PCR and Western blotting.Results:
Expression of RANKL in osteoblast MG63 cells was up-regulated at both mRNA and protein levels when osteoblast MG63 cells were co-cultured with breast cancer MDA-MB-231 or MDA-MB-435 cells,while those of OPG in osteoblast MG63 cells were both down-regulated (P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Cancer Biotherapy
Year:
1995
Type:
Article
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