lncRNA miat functions as a ceRNA to upregulate sirt1 by sponging miR-22-3p in HCC cellular senescence
lncRNA miat functions as a ceRNA to upregulate sirt1 by sponging miR-22-3p in HCC cellular senescence
复制标题
lncRNA miat作为ceRNA在HCC细胞衰老中通过海绵miR-22-3p上调sirt1
DOI:
10.18632/aging.102240
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发表时间:
2019-09
期刊:
影响因子:
--
通讯作者:
韩丽敏
中科院分区:
文献类型:
--
作者:
赵丽君;胡克新;曹建中;王攀;李俊;曾克武;何小东;屠鹏飞;童坦君;韩丽敏
Hepatocellular carcinoma (HCC) is a leading cause of cancer related deaths and lacks effective therapies. Cellular senescence acts as a barrier against cancer progression and plays an important role in tumor suppression. Senescence associated long noncoding RNAs (SAL-RNAs) are thought to be critical regulators of cancer development. Here, the long noncoding RNA (lncRNA) myocardial infarction-associated transcript (miat) was first identified as an HCC specific SALncRNA. Knockdown of miat significantly promoted cellular senescence and inhibited HCC progression. Mechanistic study revealed that SAL-miat acted as a competitive endogenous RNA (ceRNA) that upregulated the expression of sirt1 by sponging miR-22-3p. Moreover, miat downregulation activated the tumor suppressor pathway (p53/p21 and p16/pRb) and stimulated senescent cancer cells to secrete senescence-associated secretory phenotype (SASP), which contributed to inhibition of tumor cell proliferation, and resulted in the suppression of HCC tumorigenesis. Together, our study provided mechanistic insights into a critical role of miat as a miRNA sponge in HCC cellular senescence, which might offer a potential therapeutic strategy for HCC treatment.
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影响因子:
2.6
作者:
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通讯作者:
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影响因子:
19
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DOI:
10.1146/annurev-pathol-121808-102144
发表时间:
2010
期刊:
Annual review of pathology
影响因子:
--
作者:
Coppé JP;Desprez PY;Krtolica A;Campisi J
通讯作者:
Campisi J
影响因子:
11.8
作者:
Choi, Eunhee;Park, Pil-Gu;Lee, Hyunsook
通讯作者:
Lee, Hyunsook