CXXC4 activates apoptosis through up-regulating GDF15 in gastric cancer.
CXXC4 activates apoptosis through up-regulating GDF15 in gastric cancer.
复制标题
CXXC4 通过上调胃癌中的 GDF15 激活细胞凋亡
DOI:
10.18632/oncotarget.21581
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发表时间:
2017-11-28
期刊:
影响因子:
--
通讯作者:
Wang X
中科院分区:
文献类型:
--
作者:
Han M;Dai D;Yousafzai NA;Wang F;Wang H;Zhou Q;Lu H;Xu W;Feng L;Jin H;Wang X
Worldwide, gastric cancer is one of the most fatal cancers. Epigenetic alterations in gastric cancer play important roles in silencing of tumor suppressor genes. We previously found that CXXC finger protein 4 (CXXC4) was a novel tumor suppressor in gastric cancer. In this report, we demonstrated that CXXC4 inhibited growth of gastric cancer cells as a pro-apoptotic factor. This inhibition could be reversed by the pan-caspase inhibitor called Z-VAD-FMK. However, CXXC4 with mutations in its DNA binding domain failed to induce apoptosis. Growth differentiation factor 15 (GDF15) was identified as one of potential targets responsible for CXXC4-induced apoptosis. CXXC4 activated GDF15 transcription through enhancing the interaction of transcription factor Sp1 with GDF15 promoter. In summary, the nuclear protein CXXC4 activated apoptosis in gastric cancer through up-regulating its novel potential downstream target GDF15. GDF15 might be a promising target for clinical treatment of gastric cancer with CXXC4 deficiency.
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