ZAC, LIT1 (KCNQ1OT1) and p57KIP2 (CDKN1C) are in an imprinted gene network that may play a role in Beckwith-Wiedemann syndrome.
ZAC, LIT1 (KCNQ1OT1) and p57KIP2 (CDKN1C) are in an imprinted gene network that may play a role in Beckwith-Wiedemann syndrome.
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ZAC,LIT1(KCNQ1OT1)和P57KIP2(CDKN1C)处于一个烙印基因网络中,可能在Beckwith-Wiedemann综合征中发挥作用。
DOI:
10.1093/nar/gki555
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发表时间:
2005
影响因子:
14.9
通讯作者:
Wake, N
中科院分区:
文献类型:
--
作者:
Arima, T;Kamikihara, T;Hayashida, T;Kato, K;Inoue, T;Shirayoshi, Y;Oshimura, M;Soejima, H;Mukai, T;Wake, N
Loss of genomic imprinting is involved in a number of developmental abnormalities and cancers. ZAC is an imprinted gene expressed from the paternal allele of chromosome 6q24 within a region known to harbor a tumor suppressor gene for several types of neoplasia. p57KIP2 (CDKN1C) is a maternally expressed gene located on chromosome 11p15.5 which encodes a cyclin-dependent kinase inhibitor that may also act as a tumor suppressor gene. Mutations in ZAC and p57KIP2 have been implicated in transient neonatal diabetes mellitus (TNDB) and Beckwith–Wiedemann syndrome, respectively. Patients with these diseases share many characteristics. Here we show that mouse Zac1 and p57Kip2 have a strikingly similar expression pattern. ZAC, a sequence-specific DNA-binding protein, binds within the CpG island of LIT1 (KCNQ1OT1), a paternally expressed, anti-sense RNA thought to negatively regulate p57KIP2 in cis. ZAC induces LIT1 transcription in a methylation-dependent manner. Our data suggest that ZAC may regulate p57KIP2 through LIT1, forming part of a novel signaling pathway regulating cell growth. Mutations in ZAC may, therefore, contribute to Beckwith–Wiedemann syndrome. Furthermore, we find changes in DNA methylation at the LIT1 putative imprinting control region in two patients with TNDB.
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DOI:
10.1073/pnas.062491899
发表时间:
2002-03-19
影响因子:
11.1
作者:
Bálint, É;Phillips, AC;Vousden, KH
通讯作者:
Vousden, KH
影响因子:
4
作者:
Engel, JR;Smallwood, A;Maher, ER
通讯作者:
Maher, ER
影响因子:
3.5
作者:
Engemann, S;Strödicke, M;Walter, J
通讯作者:
Walter, J
影响因子:
3.5
作者:
Du, MJ;Beatty, LG;Sadowski, PD
通讯作者:
Sadowski, PD
影响因子:
3.5
作者:
Hatada, I;Inazawa, J;Mukai, T
通讯作者:
Mukai, T