Title:LncRNA FAM83H-AS1 Contributes to the Radio-resistance and Proliferation
in Liver Cancer through Stability FAM83H Protein
Volume: 19
Issue: 3
Author(s): Xiaocong Jiang, Yuhong Lan, Yingchun Zhang, Yuhong Dong*Ting Song*
Affiliation:
- Department of Hepatology, The Sixth People's Hospital of Qingdao, Qingdao, 266033, Shandong, China
- Department of Hepatology, The Sixth People's Hospital of Qingdao, Qingdao, 266033, Shandong, China
Keywords:
FAM83H-AS1, FAM83H, liver cancer, radio-sensitivity, proliferation, patents, proteins.
Abstract:
Background: Liver cancer (LC) is one of China's most common malignant tumors,
with a high mortality rate, ranking third leading cause of death after gastric and esophageal cancer.
Recent patents propose the LncRNA FAM83H-AS1 has been verified to perform a crucial role in
the progression of LC. LncRNA FAM83H-AS1 has been verified to perform a crucial role in the
progression of LC. However, the concrete mechanism remains to be pending further investigation.
Objective: This study aimed to explore the embedding mechanism of FAM83H-AS1 molecules in
terms of radio sensitivity of LC and provide potentially effective therapeutic targets for LC therapy.
Methods: Quantitative real-time PCR (qRT-PCR) was conducted to measure the transcription levels
of genes. Proliferation was determined via CCK8 and colony formation assays. Western blot was
carried out to detect the relative protein expression. A xenograft mouse model was constructed to
investigate the effect of LncRNA FAM83H-AS1 on tumor growth and radio-sensitivity in vivo.
Results: The levels of lncRNA FAM83H-AS1 were remarkably increased in LC. Knockdown of
FAM83H-AS1 inhibited LC cell proliferation and colony survival fraction. Deletion of FAM83H-AS1
increased the sensitivity of LC cells to 4 Gy of X-ray radiation. In the xenograft model, radiotherapy
combined with FAM83H-AS1 silencing significantly reduced tumor volume and weight. Overexpression
of FAM83H reversed the effects of FAM83H-AS1 deletion on proliferation and colony survival
fraction in LC cells. Moreover, the over-expressing of FAM83H also restored the tumor volume
and weight reduction caused by the knockdown of FAM83H-AS1 or radiation in the xenograft model.
Conclusion: Knockdown of lncRNA FAM83H-AS1 inhibited LC growth and enhanced radiosensitivity
in LC. It has the potential to be a promising target for LC therapy.