Abstract:
:Dysregulation of long non-coding RNAs (lncRNA) have long been linked to the onset and development of colorectal cancer (CRC), yet the underlying mechanisms remain elusive. Small nucleolar RNA host gene 11 (SNHG11) is a novel lncRNA with few information about its role in development and progression of CRC. Here, we found SNHG11, a highly conserved lncRNA, was commonly overexpressed in various cancer including CRC. High expression of SNHG11 correlated with poor prognosis in patients with CRC. Gain of function and loss-of function experiments showed that SNHG11 visibly promoted proliferation in CRC cells. Mechanistic assays revealed that SNHG11 interacted with Insulin-like growth factor 2 (IGF2) mRNA-binding protein 1 (IGF2BP1), thereby enhancing the interaction between IGF2BP1 and c-Myc mRNA, a well-known target of IGF2BP1. Consequently, c-Myc mRNA expression was stabilized and its downstream targets were significantly upregulated. Further investigation demonstrated that SNHG11 upregulated c-Myc which in turn transcriptionally upregulated SNHG11. Taken together, our findings suggested that reciprocal regulation of SNHG11 and c-Myc promotes cell proliferation in CRC.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Huang W,Dong S,Cha Y,Yuan Xdoi
10.1016/j.bbrc.2020.05.002subject
Has Abstractpub_date
2020-07-05 00:00:00pages
985-992issue
4eissn
0006-291Xissn
1090-2104pii
S0006-291X(20)30904-9journal_volume
527pub_type
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