Transcriptional Regulation of the Bmp2 Gene

Transcriptional Regulation of the Bmp2 Gene
复制标题

Bmp2 基因的转录调控

DOI:
--
复制
发表时间:
1999
影响因子:
4.8
通讯作者:
M. Rogers
M. Rogers
中科院分区:
生物学2区
文献类型:
--
作者:
L. Heller;Yong Li;Kevin L. Abrams;M. Rogers

文献摘要

参考文献

被引文献

相似文献

Bmp2 是转化生长因子-β 基因家族中高度保守的成员,对于正常发育至关重要。视黄酸与 cAMP 类似物结合,在 F9 胚胎癌细胞分化为壁内胚层期间急剧诱导 Bmp2 mRNA。视黄酸 (RA) 还可诱导小鸡肢芽中的 Bmp2 基因。由于正常的 Bmp2 表达可能需要内源性视黄醇信号,而异常的 Bmp2 表达可能会导致 RA 诱导的畸形发生的某些方面,因此我们研究了 Bmp2 诱导的机制。 Bmp2mRNA 半衰期和核连续分析的测量表明 RA 刺激了 Bmp2 基因的转录率。核糖核酸酶保护和引物延伸测定的结果表明,F9细胞中Bmp2转录从翻译起始位点上游2,127个核苷酸处开始。为了鉴定控制这种转录速率增加的遗传元件,使用与视黄酸受体和类视黄醇X受体表达质粒共转化的F9细胞中的氯霉素乙酰转移酶报告基因和酿酒酵母中的β-半乳糖苷酶报告基因来筛选Bmp2基因侧翼的上游和下游基因组序列。在相对于翻译起始位点的碱基对-2,373和-2,316之间检测到RA依赖性转录激活。我们还确定了 -2,308 和 -2,298 之间所需的 Sp1 结合位点。数据表明Bmp2直接受视黄酸结合受体和Sp1调节。
Bmp2, a highly conserved member of the transforming growth factor-β gene family, is crucial for normal development. Retinoic acid, combined with cAMP analogs, sharply induces the Bmp2 mRNA during the differentiation of F9 embryonal carcinoma cells into parietal endoderm. Retinoic acid (RA) also induces the Bmp2 gene in chick limb buds. Since normalBmp2 expression may require an endogenous retinoid signal and aberrant Bmp2 expression may cause some aspects of RA-induced teratogenesis, we studied the mechanism underlying the induction of Bmp2. Measurements of the Bmp2mRNA half-life and nuclear run-on assays indicated that RA stimulated the transcription rate of the Bmp2 gene. The results of ribonuclease protection and primer extension assays indicated that Bmp2 transcription started 2,127 nucleotides upstream of the translation start site in F9 cells. To identify genetic elements controlling this transcription rate increase, upstream and downstream genomic sequences flanking the Bmp2 gene were screened using chloramphenicol acetyltransferase reporter genes in F9 cells and β-galactosidase reporter genes in Saccharomyces cerevisiae that were cotransformed with retinoic acid receptor and retinoid X receptor expression plasmids. RA-dependent transcriptional activation was detected between base pairs −2,373 and −2,316 relative to the translation start site. We also identified a required Sp1 binding site between −2,308 and −2,298. The data indicate that Bmp2 is directly regulated by retinoic acid-bound receptors and Sp1.
受体选择性视黄醇表明视黄酸受体α和γ参与F9胚胎癌细胞中bmp-2和bmp-4的调节。
DOI: --
发表时间: 1996
期刊: Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research
影响因子: --
作者:
Rogers,MB
通讯作者: Rogers,MB
DOI: 10.1073/pnas.90.15.6929
发表时间: 1993
影响因子: 11.1
作者:
Hall,BL;Smit-McBride,Z;Privalsky,ML
通讯作者: Privalsky,ML
DOI: 10.1101/gad.9.21.2635
发表时间: 1995-11-01
影响因子: 10.5
作者:
YUAN, HB;CORBI, N;DAILEY, L
通讯作者: DAILEY, L
DOI: 10.1016/0168-9525(90)90274-a
发表时间: 1990-08
期刊: Development
影响因子: 4.6
作者:
K. Lyons;R. Pelton;B. Hogan
通讯作者: K. Lyons;R. Pelton;B. Hogan
DOI: --
发表时间: 1994
期刊: --
影响因子: --
作者:
M. Sporn;A. Roberts;D. Goodman
通讯作者: M. Sporn;A. Roberts;D. Goodman