Background: The nicotinamide nucleotide transhydrogenase antisense RNA 1 (NNT-AS1) is a long non-coding RNA aberrantly expressed in human malignancies. We aimed to analyze available data to evaluate the correlation between NNT-AS1 expression and cancer prognosis.
Methods: Literature retrieval was performed by systematic searching related databases from inception to April 2, 2020. Studies regarding correlation between NNT-AS1 expression, survival outcomes and clinical characteristics of cancer patients were collected and pooled to calculate the the hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (95% CIs).
Results: Ten studies comprising 690 patients were included. Overexpression of NNT-AS1 had a significant association with unfavorable overall survival (OS) (HR=2.08, 95% CI: 1.84-2.36, P<0.001). Stratified analysis showed that tumor type, sample size, follow-up months, and survival analysis approach did not change the predictive value of NNT-AS1 on OS. Furthermore, elevated NNT-AS1 level had significant association with distant metastasis (DM) (OR=2.45, 95% CI: 1.39-4.30), lymph node metastasis (LNM) (OR=3.92, 95% CI: 1.35-11.41), TNM stage (OR=4.25, 95% CI: 1.71-10.56), and vascular invasion (OR=3.98, 95% CI: 2.06-7.71), but was not associated with age and gender. The TCGA dataset showed the NNT-AS1 expression was strongly associated with poor OS, but not disease-free survival.
Conclusions: high expression of NNT-AS1 could predict unfavorable survival and clinicopathologic outcomes, indicating NNT-AS1 may serve as a novel biomarker for prognosis and therapeutic target for patients.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6
This is a list of supplementary files associated with this preprint. Click to download.
Loading...
On 31 Aug, 2020
On 26 Aug, 2020
On 02 Aug, 2020
Received 02 Aug, 2020
Invitations sent on 31 Jul, 2020
On 31 Jul, 2020
On 30 Jul, 2020
On 29 Jul, 2020
On 29 Jul, 2020
Posted 10 Apr, 2020
On 05 Jul, 2020
Received 17 Jun, 2020
Received 16 Jun, 2020
On 17 May, 2020
On 14 May, 2020
Invitations sent on 09 Apr, 2020
On 06 Apr, 2020
On 05 Apr, 2020
On 05 Apr, 2020
On 05 Apr, 2020
On 31 Aug, 2020
On 26 Aug, 2020
On 02 Aug, 2020
Received 02 Aug, 2020
Invitations sent on 31 Jul, 2020
On 31 Jul, 2020
On 30 Jul, 2020
On 29 Jul, 2020
On 29 Jul, 2020
Posted 10 Apr, 2020
On 05 Jul, 2020
Received 17 Jun, 2020
Received 16 Jun, 2020
On 17 May, 2020
On 14 May, 2020
Invitations sent on 09 Apr, 2020
On 06 Apr, 2020
On 05 Apr, 2020
On 05 Apr, 2020
On 05 Apr, 2020
Background: The nicotinamide nucleotide transhydrogenase antisense RNA 1 (NNT-AS1) is a long non-coding RNA aberrantly expressed in human malignancies. We aimed to analyze available data to evaluate the correlation between NNT-AS1 expression and cancer prognosis.
Methods: Literature retrieval was performed by systematic searching related databases from inception to April 2, 2020. Studies regarding correlation between NNT-AS1 expression, survival outcomes and clinical characteristics of cancer patients were collected and pooled to calculate the the hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (95% CIs).
Results: Ten studies comprising 690 patients were included. Overexpression of NNT-AS1 had a significant association with unfavorable overall survival (OS) (HR=2.08, 95% CI: 1.84-2.36, P<0.001). Stratified analysis showed that tumor type, sample size, follow-up months, and survival analysis approach did not change the predictive value of NNT-AS1 on OS. Furthermore, elevated NNT-AS1 level had significant association with distant metastasis (DM) (OR=2.45, 95% CI: 1.39-4.30), lymph node metastasis (LNM) (OR=3.92, 95% CI: 1.35-11.41), TNM stage (OR=4.25, 95% CI: 1.71-10.56), and vascular invasion (OR=3.98, 95% CI: 2.06-7.71), but was not associated with age and gender. The TCGA dataset showed the NNT-AS1 expression was strongly associated with poor OS, but not disease-free survival.
Conclusions: high expression of NNT-AS1 could predict unfavorable survival and clinicopathologic outcomes, indicating NNT-AS1 may serve as a novel biomarker for prognosis and therapeutic target for patients.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6
This is a list of supplementary files associated with this preprint. Click to download.
Loading...