LncRNA SNHG17 interacts with LRPPRC to stabilize c-Myc protein and promote G1/S transition and cell proliferation.
LncRNA SNHG17 interacts with LRPPRC to stabilize c-Myc protein and promote G1/S transition and cell proliferation.
复制标题
LncRNA SNHG17 与 LRPPRC 相互作用稳定 c-Myc 蛋白并促进 G1/S 转变和细胞增殖
DOI:
10.1038/s41419-021-04238-x
复制
发表时间:
2021-10-20
影响因子:
9
通讯作者:
Zhuang SM
中科院分区:
文献类型:
--
作者:
Liu JY;Chen YJ;Feng HH;Chen ZL;Wang YL;Yang JE;Zhuang SM
Oncogenic c-Myc is a master regulator of G1/S transition. Long non-coding RNAs (lncRNAs) emerge as new regulators of various cell activities. Here, we found that lncRNA SnoRNA Host Gene 17 (SNHG17) was elevated at the early G1-phase of cell cycle. Both gain- and loss-of function studies disclosed that SNHG17 increased c-Myc protein level, accelerated G1/S transition and cell proliferation, and consequently promoted tumor cell growth in vitro and in vivo. Mechanistically, the 1-150-nt of SNHG17 physically interacted with the 1035-1369-aa of leucine rich pentatricopeptide repeat containing (LRPPRC) protein, and disrupting this interaction abrogated the promoting role of SNHG17 in c-Myc expression, G1/S transition, and cell proliferation. The effect of SNHG17 in stimulating cell proliferation was attenuated by silencing c-Myc or LRPPRC. Furthermore, silencing SNHG17 or LRPPRC increased the level of ubiquitylated c-Myc and reduced the stability of c-Myc protein. Analysis of human hepatocellular carcinoma (HCC) tissues revealed that SNHG17, LRPPRC, and c-Myc were significantly upregulated in HCC, and they showed a positive correlation with each other. High level of SNHG17 or LRPPRC was associated with worse survival of HCC patients. These data suggest that SNHG17 may inhibit c-Myc ubiquitination and thus enhance c-Myc level and facilitate proliferation by interacting with LRPPRC. Our findings identify a novel SNHG17-LRPPRC-c-Myc regulatory axis and elucidate its roles in G1/S transition and tumor growth, which may provide potential targets for cancer therapy.
登录
查看更多内容
影响因子:
11.2
作者:
Rabellino A;Andreani C;Scaglioni PP
通讯作者:
Scaglioni PP
DOI:
10.1126/science.aac9935
发表时间:
2016-04-08
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Casey SC;Tong L;Li Y;Do R;Walz S;Fitzgerald KN;Gouw AM;Baylot V;Gütgemann I;Eilers M;Felsher DW
通讯作者:
Felsher DW
DOI:
10.1038/s41580-020-0215-2
发表时间:
2020-05
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Baluapuri A;Wolf E;Eilers M
通讯作者:
Eilers M
影响因子:
25.7
作者:
Connor F;Rayner TF;Aitken SJ;Feig C;Lukk M;Santoyo-Lopez J;Odom DT
通讯作者:
Odom DT
影响因子:
64.5
作者:
Delmore JE;Issa GC;Lemieux ME;Rahl PB;Shi J;Jacobs HM;Kastritis E;Gilpatrick T;Paranal RM;Qi J;Chesi M;Schinzel AC;McKeown MR;Heffernan TP;Vakoc CR;Bergsagel PL;Ghobrial IM;Richardson PG;Young RA;Hahn WC;Anderson KC;Kung AL;Bradner JE;Mitsiades CS
通讯作者:
Mitsiades CS