Defeng LI, Yang MAO, Wenjing WANG, et al. Construction and evaluation of a prognostic model for renal clear cell carcinoma based on metabolism-related genes in TCGA database[J]. Journal of Army Medical University, 2023, 45(2): 165-172.
DOI:
Defeng LI, Yang MAO, Wenjing WANG, et al. Construction and evaluation of a prognostic model for renal clear cell carcinoma based on metabolism-related genes in TCGA database[J]. Journal of Army Medical University, 2023, 45(2): 165-172. DOI: 10.16016/j.2097-0927.202206121.
Construction and evaluation of a prognostic model for renal clear cell carcinoma based on metabolism-related genes in TCGA database
To investigated the expression of metabolism-related genes (MRGs) in kidney renal clear cell carcinoma (KIRC) and its correlation with prognosis of patients so as to search for potential intervention targets.
Methods
2
Bioinformatics were used to mine KIRC transcriptome data in the Cancer Genome Atlas Program (TCGA) database
and the MRGs abnormally expressed were obtained
among which the ones closely associated with overall survival of KIRC patients were screened by LASSO and Cox regression. Furthermore
Cox regression analysis was adopted to construct a risk-score model to predict the prognosis of KIRC patients
and its predictive ability was evaluated. Finally
the expression characteristics of prognostic related MRGs were verified using RT-qPCR in KIRC cell line A498 and renal tubular epithelial cell line HK-2
respectively.
Results
2
A total of 875 differentially expressed MRGs were found between KIRC and adjacent tissues. Univariate Cox regression analysis showed that 38 MRGs significantly affected the prognosis of patients
and 7 of them (
CNGB
1
CACNA
1
I
KCNT
1
KCNH
1
PLA
2
G
4
D
CHST
6
and
ATP
2
A
1) were further selected as prognostic risk factors by LASSO and multivariate Cox regression. Subsequently
a risk-score model was constructed based on the above 7 factors. The score obtained from the model could be used as an independent risk factor to predict the prognosis of KIRC patients (risk ratio: 4.671
P
<
0.001)
while age
gender
and tumor grade were not correlated with the prognosis of patients (
P
>
0.05).
Conclusion
2
There are several MRGs with abnormal expression in KIRC
and the prognostic risk model based on 7 genes screened from the MRGs can effectively predict the prognosis of KIRC patients
providing a new basis for future diagnosis and treatment of KIRC.
关键词
Keywords
references
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