Published online Jan 21, 2022. doi: 10.12998/wjcc.v10.i3.790
Peer-review started: August 17, 2021
First decision: November 8, 2021
Revised: November 17, 2021
Accepted: December 23, 2021
Article in press: December 23, 2021
Published online: January 21, 2022
Processing time: 151 Days and 4.2 Hours
Intrahepatic cholangiocarcinoma (ICC) is malignancies of the biliary duct system and constitutes approximately 10%-20% of all primary liver cancers. Tumor mutation burden (TMB) is a useful biomarker across many cancer types for the identification of patients who will benefit from immunotherapy. This study collected the ICC database from the Memorial Sloan Kettering Cancer Center to investigate the impact of TMB on the prognosis of ICC patients.
The prognosis of ICC patients is very poor. Previous studies suggest that TMB can used to be a prognostic factor in many types of cancer. It is critical to analyze the prognostic value of TMB in ICC to help individual clinical treatment.
This study aims to investigate the prognostic value of TMB in patients with intrahepatic cholangiocarcinoma ICC. In particular, we sought to confirm that TMB is an independent prognostic factor of ICC and construct a nomogram model to predict the prognosis of ICC patients, which was helpful for its clinical application.
This study is a retrospective cohort study of ICC patients. This is a study of large sample to investigate the prognostic value of TMB and other clinical characters in ICC.
TMB was an independent risk predictor for ICC. Furthermore, independent prognostic factors of ICC included CA19-9, chronic viral hepatitis, tumor resection and disease progression (metastatic disease vs solitary liver tumor). The clinical characteristics and TMB data of some cases had missing. which increased the analysis error in our study. Using a single data source also increases statistical error. Further larger–cohort studies are necessary to confirm the predictive value of TMB in the prognosis of ICC patients.
These findings suggest that TMB was an independent prognostic biomarker in patients with ICC. Moreover, patients with ICC with high TMB had poor overall survival and relapse free survival as compared to those with low TMB.
We will continue to collect the clinical data of ICC patients and consolidate our conclusions by expanding the present study’s sample size.
