The transcriptional factor CF2 is a mediator of EGF-R-activated dorsoventral patterning in Drosophila oogenesis.

The transcriptional factor CF2 is a mediator of EGF-R-activated dorsoventral patterning in Drosophila oogenesis.
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转录因子 CF2 是果蝇卵子发生过程中 EGF-R 激活的背腹模式的介体。

DOI:
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发表时间:
1996
影响因子:
10.5
通讯作者:
F. C. Kafatos
F. C. Kafatos
中科院分区:
生物学1区
文献类型:
--
作者:
Tien Hsu;Claudia Bagni;James D. Sutherland;F. C. Kafatos

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果蝇卵子发生过程中背腹极的建立需要滤泡细胞和卵母细胞之间的局部细胞间通讯。这是由EGF受体(EGF-R)途径将“背部信号”从卵母细胞传递到前背部毛囊细胞开始的,随后是第二个信号从腹侧毛囊细胞传输回胚胎。我们发现锌指转录因子CF2参与了这些过程。CF2在前背部毛囊细胞中被EGF-R信号抑制。正如表型和分子标记所证明的那样,CF2的表达模式改变导致卵室和胚胎中特定的背腹图案缺陷。CF2似乎是背部毛囊细胞命运的抑制因子,尤其是菱形基因转录的抑制因子。
Establishment of dorsoventral polarity during Drosophila oogenesis requires localized intercellular communication between the follicular cells and the oocyte. This is initiated by the transmission of a "dorsal signal" from the oocyte to the anterior dorsal follicle cells by the EGF receptor (EGF-R) pathway and is followed by transmission of a second signal from the ventral follicle cells back to the embryo. We show that the zinc finger transcription factor CF2 participates in these processes. CF2 is suppressed by EGF-R signaling in the anterior dorsal follicle cells. Altered expression patterns of CF2 result in specific dorsoventral patterning defects in egg chambers and in embryos, as demonstrated phenotypically and with molecular markers. CF2 appears to act as a repressor of dorsal follicle cell fates and specifically as a repressor of the rhomboid gene transcription.
DOI: 10.1126/science.2876518
发表时间: 1986-10-17
期刊: SCIENCE
影响因子: 56.9
作者:
ROGERS, S;WELLS, R;RECHSTEINER, M
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