This is a retrospective observational study in liver transplantation recipients with or without allograft liver fibrosis. Based on the GM-seq and Tcr-Seq data, a novel diagnostic model including DNA-methylation and TCR-Seq biomarkers will be established.
This is a retrospective study on 60 patients who had previously received liver transplantation in our hospital. The patients will be stratified according to age, including 20 children and 20 adults with allograft liver fibrosis after liver transplantation, while 10 children and 10 adults with fibrosis, respectively. 1. The differential analysis of DNA-methylation will be performed between the allograft liver fibrosis cohort and the control cohort based on the GM-seq sequencing data. And the fibrosis-specific DNA-methylation CpG sites or regions in liver and peripheral blood will be explored in the liver transplantation recipients. 2. The abundance and diversity of TCR between the allograft liver fibrosis cohort and the control cohort will be analyzed. And the fibrosis-specific TCR sequence of allograft liver fibrosis will be screened based on TCR-Seq sequencing and tNGS. 3. The characteristics of DNA-methylation and TCR-Seq biomarkers in allograft liver fibrosis population will be defined. And the similarities and differences of the characteristics between children and adults will be explored. 4. Based on the GM-seq and Tcr-Seq data, a novel diagnostic model including DNA-methylation and TCR-Seq biomarkers will be established.
Study Type
OBSERVATIONAL
Enrollment
60
Observational studies without intervention
Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University
Shanghai, Shanghai Municipality, China
Sensivity
Sensivity is the true positive rate of the novel diagnostic model \[Liver fibrosis is determined by histological examination of liver biopsy (LAFSc)\].
Time frame: 7 Days
Specificity
Specificity is the true negative rate of the novel diagnostic model \[Liver fibrosis is determined by histological examination of liver biopsy (LAFSc)\].
Time frame: 7 Days
AUROC
AUROC is the area under the receiver operating characteristic curve \[Liver fibrosis is determined by histological examination of liver biopsy (LAFSc)\].
Time frame: 7 Days
Heterogeneity of the DNA-methylation biomarkers in allograft liver fibrosis cohort
The similarities and differences of the characteristics of DNA-methylation and TCR-Seq biomarkers between children and adults in the allograft liver fibrosis cohort.
Time frame: 7 Days
Heterogeneity of the TCR-Seq biomarkers in allograft liver fibrosis cohort
The similarities and differences of the characteristics of TCR-Seq biomarkers between children and adults in the allograft liver fibrosis cohort.
Time frame: 7 Days
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