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2015 ; 8
(7
): 7887-95
Nephropedia Template TP
gab.com Text
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Combined identification of long non-coding RNA XIST and HIF1A-AS1 in serum as an
effective screening for non-small cell lung cancer
#MMPMID26339353
Tantai J
; Hu D
; Yang Y
; Geng J
Int J Clin Exp Pathol
2015[]; 8
(7
): 7887-95
PMID26339353
show ga
OBJECTIVE: Long non-coding RNAs (lncRNAs) XIST and HIF1A-AS1 have been shown to
play important regulatory roles in cancer biology, and lncRNA-XIST and HIF1A-AS1
are upregulated in several cancers such as glioblastoma, breast cancer and
thoracoabdominal aorta aneurysm, however, its value in the diagnosis of non-small
cell lung cancer (NSCLC) is unclear. The aim of this study is to evaluate the
clinical significance of serum XIST and HIF1A-AS1 as a biomarker in the screening
of NSCLC. METHODS: Expression levels of lncRNA-XIST and HIF1A-AS1 in tumor
tissues and serum from NSCLC patients were evaluated by quantitative real-time
PCR, and its association with overall survival of patients was analyzed by
statistical analysis. Moreover, the XIST and lncRNA-XIST expression correlation
between tumor tissues and plasma was demonstrated by linear regression analysis.
RESULTS: The levels of XIST (P < 0.05) and HIF1A-AS1 (P < 0.05) were
significantly increased in tumor tissues or serum from NSCLC patients as compared
to those of control group. Correlation of lncRNA-XIST or HIF1A-AS1 expression
between tumor tissues and serum from the same individuals was confirmed in NSCLC
patients. Moreover, serum levels of XIST and HIF1A-AS1 were significantly
decreased after surgical treatment as compared to pre-operative. The ROC curves
illustrated strong separation between the NSCLC patients and control group, with
an AUC of 0.834 (95% CI: 0.726-0.935; P < 0.001) for XIST and 0.876 (95% CI:
0.793-0.965; P < 0.001) for HIF1A-AS1, however, the combination of XIST and
HIF1A-AS1 yielded an AUC of 0.931 (95% CI: 0.869-0.990; P < 0.001), which was
significantly improved as compared to XIST or HIF1A-AS1 alone. CONCLUSION: Our
results demonstrated that increased serum XIST and HIF1A-AS1 could be used as a
predictive biomarker for NSCLC screening, and that combination of XIST and
HIF1A-AS1 had a higher positive diagnostic efficiency of NSCLC than XIST or
HIF1A-AS1 alone.