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Cross-match as an immuno-oncological risk factor for hepatocellular carcinoma recurrence and inferior survival after living donor liver transplantation: A call for further investigation

Journal
Annals of Hepato-Biliary-Pancreatic Surgery
Journal Volume
25
Journal Issue
1
Date Issued
2021-06-01
Author(s)
CHENG-MAW HO 
REY-HENG HU
YAO-MING WU 
MING-CHIH HO 
PO-HUANG LEE
DOI
10.14701/ahbps.LV-OP-1-6
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/587743
URL
https://api.elsevier.com/content/abstract/scopus_id/85116258440
Abstract
Introduction: The success of immunotherapy for patients with hepatocellular carcinoma (HCC) suggest that immune dysregulation occurs in HCC patients. This warrants an immuno-oncological risk assessment in the platform of liver transplantation. Methods: This retrospective single-center study analyzed risk factors for—particularly cross-matching performed through conven­tional complement-dependent cytotoxicity cross-match tests—and the outcomes of HCC recurrence following living donor liver trans­plant. Results: A total of 71 patients were included. The median follow-up period was 29.1 months. Seventeen (23.9%) patients had post­transplant HCC recurrence, and their 1-, 3-, and 5-year survival rates were 70.6%, 25.7%, and 17.1%, respectively, which were inferior to those of patients without HCC recurrence (87.0%, 80.7%, and 77.2%, respectively [p < 0.001]). In addition to microvascular invasion, positive cross-match results for B cells at 37°C (B- 37ºC) or T cells at 4°C (T- 4ºC) was associated with inferior overall survival in mul­tivariable analysis after adjustment for tumor status beyond Milan criteria and elevated alpha-fetoprotein levels. Rejection alone can­not be the mechanism underlying the effects of positive cross-match results on patient outcomes. Adjusted survival curves suggested that positive cross-match B- 37ºC or T- 4ºC was associated with inferior recurrence-free and patient survival, but the robustness of the finding was limited by insufficient power. Conclusions: Additional large-scale studies are required to validate positive cross-match as an immuno-oncological factor associated with HCC recurrence and inferior patient survival.
Type
journal article

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