Nian WU, Ping ZHANG, Dongdong TIAN, et al. Effects of all-trans-retinoic acid and bone morphogenetic protein 9 on proliferation and differentiation of human osteosarcoma cells[J]. Journal of Third Military Medical University, 2017, 39(13): 1333-1338.
DOI:
Nian WU, Ping ZHANG, Dongdong TIAN, et al. Effects of all-trans-retinoic acid and bone morphogenetic protein 9 on proliferation and differentiation of human osteosarcoma cells[J]. Journal of Third Military Medical University, 2017, 39(13): 1333-1338. DOI: 10.16016/j.1000-5404.201610139.
Effects of all-trans-retinoic acid and bone morphogenetic protein 9 on proliferation and differentiation of human osteosarcoma cells
To determine the effects of all-trans-retinoic acid (ATRA) and bone morphogenetic protein 9 (BMP9) on the proliferation and osteogenic differentiation of human osteosarcoma (OS) cells.
Methods
2
MTT assay and flow cytometry were used to analyze the proliferation of the human OS cell line 143B. Western blot analysis was used to detect the proliferation-and osteogenesis-related markers. Semi-quantitative PCR and Western blot analysis were used to analyze the expression levels of BMP9 in 143B cells after treated with ATRA alone or combined with BMP9.
Results
2
In the 143B cells
ATRA significantly inhibited the proliferation of 143B cells (
P
<
0.05) compared with the untreated group
promoted cell cycle arrested in G1 phase (
P
<
0.05)
and reduced the pro
tein level of PCNA in
a
concentration-dependent manner. The protein levels of lately osteogenic makers OPN and OCN were up-regulated by ATRA treatment in
a
concentration-dependent manner (
P
<
0.05)
so were the mRNA and protein levels of endogenous BMP9 (
P
<
0.05). BMP9 alone failed to up-regulate the expression of OPN and OCN but promoted the proliferation of 143B cells (
P
<
0.05)
but when combined with ATRA
BMP9 enhanced the expression of osteogenic markers and anti-proliferation effect induced by ATRA (
P
<
0.05).
Conclusion
2
ATRA inhibit the proliferation and induce osteogenic differentiation in 143B cells
and may restore the osteogenic capability of BMP9.
关键词
Keywords
references
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