Abstract:
:Colorectal cancer (CRC) brings more than 600 000 deaths every year around the globe, making itself the third most frequently occurred carcinoma. The great progress human achieved in diagnosis and treatment of various cancers has failed to reverse this trend. Fortunately, growing evidence has implied the relationship between lncRNAs and cancer progression. Long noncoding RNA (lncRNA) PRKCQ-AS1 was heightened in CRC cells and tissues and related with dismal prognosis of CRC patients. Knockdown of PRKCQ-AS1 would induce a decrease in proliferative and migrating ability of CRC cells. Also, PRKCQ-AS1 enriched in cytoplasm of CRC cells and negatively regulated miR-1287-5p level. More important, PRKCQ-AS1 could bind to argonaute 2 and function in the RNA-induced silencing complex with miR-1287-5p. Therefore, PRKCQ-AS1 was a competing endogenous RNA for miR-1287-5p. Subsequently, it was validated that miR-1287-5p could suppress the proliferative and migratory functions in CRC. Furthermore, PRKCQ-AS1 could upregulate the mRNA and protein level of YBX1 targeted by miR-1287-5p. And YBX1 expression was elevated in CRC cells and tissues. Rescue assays in vitro and in vivo showed that overexpression of YBX1 could partly offset the effect of CRC progression induced by knocking down PRKCQ-AS1, demonstrating PRKCQ-AS1 mediating CRC progression via miR-1287-5p/YBX1 pathway.
journal_name
J Cell Biochemjournal_title
Journal of cellular biochemistryauthors
Cui G,Zhao H,Li Ldoi
10.1002/jcb.29712subject
Has Abstractpub_date
2020-10-01 00:00:00pages
4166-4175issue
10eissn
0730-2312issn
1097-4644journal_volume
121pub_type
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