Abstract
Objectives
To investigate the predictive value of quantifiable imaging and inflammatory biomarkers in patients with hepatocellular carcinoma (HCC) for the clinical outcome after drug-eluting bead transarterial chemoembolization (DEB-TACE) measured as volumetric tumor response and progression-free survival (PFS).
Methods
This retrospective study included 46 patients with treatment-naïve HCC who received DEB-TACE. Laboratory work-up prior to treatment included complete and differential blood count, liver function, and alpha-fetoprotein levels. Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) were correlated with radiomic features extracted from pretreatment contrast-enhanced magnetic resonance imaging (MRI) and with tumor response according to quantitative European Association for the Study of the Liver (qEASL) criteria and progression-free survival (PFS) after DEB-TACE. Radiomic features included single nodular tumor growth measured as sphericity, dynamic contrast uptake behavior, arterial hyperenhancement, and homogeneity of contrast uptake. Statistics included univariate and multivariate linear regression, Cox regression, and Kaplan–Meier analysis.
Results
Accounting for laboratory and clinical parameters, high baseline NLR and PLR were predictive of poorer tumor response (p = 0.014 and p = 0.004) and shorter PFS (p = 0.002 and p < 0.001). When compared to baseline imaging, high NLR and PLR correlated with non-spherical tumor growth (p = 0.001 and p < 0.001).
Conclusions
This study establishes the prognostic value of quantitative inflammatory biomarkers associated with aggressive non-spherical tumor growth and predictive of poorer tumor response and shorter PFS after DEB-TACE.
Key Points
• In treatment-naïve hepatocellular carcinoma (HCC), high baseline platelet-to-lymphocyte ratio (PLR) and neutrophil-to-lymphocyte ratio (NLR) are associated with non-nodular tumor growth measured as low tumor sphericity.
• High PLR and NLR are predictive of poorer volumetric enhancement-based tumor response and PFS after DEB-TACE in HCC.
• This set of readily available, quantitative immunologic biomarkers can easily be implemented in clinical guidelines providing a paradigm to guide and monitor the personalized application of loco-regional therapies in HCC.
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Abbreviations
- AFP:
-
Alpha-fetoprotein
- ALC:
-
Absolute lymphocyte count
- ALT:
-
Alanine aminotransferase
- ANC:
-
Absolute neutrophil count
- AP:
-
Alkaline phosphatase
- AST:
-
Aspartate aminotransferase
- BCLC:
-
Barcelona Clinic Liver Cancer
- DEB:
-
Drug-eluting bead
- ETB:
-
Enhancing tumor burden
- HCC:
-
Hepatocellular carcinoma
- HIPAA:
-
Health Insurance Portability and Accountability Act
- LI-RADS:
-
Liver Imaging Reporting and Data System
- NLR:
-
Neutrophil-to-lymphocyte ratio
- PFS:
-
Progression-free survival
- PLR:
-
Platelet-to-lymphocyte ratio
- qEASL:
-
Quantitative European Association for the Study of the Liver
- TACE:
-
Transarterial chemoembolization
- TB:
-
Tumor burden
- TME:
-
Tumor microenvironment
- TTV:
-
Total tumor volume
- VEGF:
-
Vascular endothelial growth factor
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Acknowledgments
We thank Luzie Dömel for her support and Claus Peter Nowak, M.Sc., for providing statistical advice. Dr. Savic is a participant in the BIH-Charité Junior Clinician Scientist Program funded by the Charité – Universiätsmedizin Berlin and the Berlin Institute of Health.
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The scientific guarantor of this publication is Julius Chapiro.
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Claus Peter Nowak, M.Sc., from the Institute of Biometry and Clinical Epidemiology, Charité Berlin, kindly provided statistical advice for this manuscript.
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Schobert, I.T., Savic, L.J., Chapiro, J. et al. Neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios as predictors of tumor response in hepatocellular carcinoma after DEB-TACE. Eur Radiol 30, 5663–5673 (2020). https://doi.org/10.1007/s00330-020-06931-5
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DOI: https://doi.org/10.1007/s00330-020-06931-5