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LncRNA SNHG7 accelerates the proliferation, migration and invasion of hepatocellular carcinoma cells via regulating miR-122-5p and RPL4
- Source :
- Biomedicine & Pharmacotherapy, Vol 118, Iss, Pp-(2019)
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Long noncoding RNAs (lncRNAs) play vital roles in the development and progression of hepatocellular carcinoma (HCC). The recent study finds a strong correlation between lncRNA small nucleolar RNA host gene 7 (SNHG7) and HCC metastasis. However, the molecular mechanism by which SNHG7 regulates HCC progression has not been investigated. In this study, we found that SNHG7 was highly expressed in HCC tissues compared to non-tumor tissues. Data from public databases consistently indicated the up-regulated expression of SNHG7 in HCC. Furthermore, the levels of SNHG7 were up-regulated in four HCC cell lines (Huh7, Hep3B, HCCLM3, MHCC97 H) compared with LO2 cells. Interestingly, the elevated expression of SNHG7 was closely correlated with advanced tumor stages, high tumor grades, vascular invasion and poor prognosis of HCC. Knockdown of SNHG7 markedly inhibited cell proliferation, migration and invasion in HCCLM3 and MHCC97H cells, and prominently suppressed the growth and metastasis of HCCLM3 cells in vivo. Mechanistically, SNHG7 silencing increased the level of miR-122-5p in HCC cells. Luciferase reporter assay revealed the direct interaction between SNHG7 and miR-122-5p. Moreover, SNHG7 knockdown decreased the levels of ribosomal protein L4 (RPL4) mRNA and protein in HCC cells. Accordingly, the stability of RPL4 mRNA was reduced by SNHG7 silencing. More importantly, either miR-122-5p knockdown or RPL4 restoration partially reversed SNHG7 silencing-induced tumor suppressive effects on HCC cells. In conclusion, we demonstrated that SNHG7 expression was up-regulated in HCC. SNHG7 contributed to HCC progression by regulating miR-122-5p and RPL4. Therefore, SNHG7 might be a potential biomarker and therapeutic target for HCC.
- Subjects :
- Male
Ribosomal Proteins
0301 basic medicine
Carcinoma, Hepatocellular
Carcinogenesis
Hepatocellular carcinoma
Mice, Nude
RM1-950
Biology
Metastasis
SNHG7
03 medical and health sciences
0302 clinical medicine
Cell Movement
miR-122-5p
RPL4
medicine
MiR-122
Animals
Humans
Gene silencing
Neoplasm Invasiveness
Neoplasm Metastasis
neoplasms
Cell Proliferation
Pharmacology
Mice, Inbred BALB C
Gene knockdown
Base Sequence
Cell growth
Liver Neoplasms
Hep G2 Cells
General Medicine
Prognosis
medicine.disease
Tumor progression
digestive system diseases
Up-Regulation
Gene Expression Regulation, Neoplastic
MicroRNAs
030104 developmental biology
Cell culture
Gene Knockdown Techniques
030220 oncology & carcinogenesis
Cancer research
RNA, Long Noncoding
Therapeutics. Pharmacology
Subjects
Details
- ISSN :
- 07533322
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Biomedicine & Pharmacotherapy
- Accession number :
- edsair.doi.dedup.....95ca5db09d12132cdad9b7bb8f598942