Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome

Abstract Background Sarcomatoid hepatocellular carcinoma (HCC) is a rare and highly lethal histological subtype of HCC, with completely unknown genetic etiology and therapeutic targets. Methods We included 16 patients with sarcomatoid HCC receiving radical resection among 6731 cases of pathological...

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Main Authors: Cheng Zhang, Shi Feng, Zhenhua Tu, Jingqi Sun, Tao Rui, Xueyou Zhang, Haitao Huang, Qi Ling, Shusen Zheng
Format: Article
Language:English
Published: Wiley 2021-09-01
Series:Cancer Medicine
Subjects:
Online Access:https://doi.org/10.1002/cam4.4162
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author Cheng Zhang
Shi Feng
Zhenhua Tu
Jingqi Sun
Tao Rui
Xueyou Zhang
Haitao Huang
Qi Ling
Shusen Zheng
author_facet Cheng Zhang
Shi Feng
Zhenhua Tu
Jingqi Sun
Tao Rui
Xueyou Zhang
Haitao Huang
Qi Ling
Shusen Zheng
author_sort Cheng Zhang
collection DOAJ
description Abstract Background Sarcomatoid hepatocellular carcinoma (HCC) is a rare and highly lethal histological subtype of HCC, with completely unknown genetic etiology and therapeutic targets. Methods We included 16 patients with sarcomatoid HCC receiving radical resection among 6731 cases of pathological confirmed HCC in year 2008 to 2018 in our hospital. We compared the clinical features, prognosis and cancer genome between 15 sarcomatoid HCC and propensity score‐matched 75 non‐sarcomatoid HCC patients. The other concurrent case was analyzed using phylogenetic tree to assess the tumor heterogeneity and evolution. Results Sarcomatoid HCC group showed larger tumor size, more advanced differentiation grade, lower tumor free survival (p = 0.038) and overall survival (p = 0.001), and sarcomatoid type was an independent risk factor for patient death. Integrating sarcomatoid subtype into AJCC staging could increase the diagnostic curve in predicting patient survival. The cancer genome spectrum showed sarcomatoid HCC group had significant higher mutation rates in CDKN2A, EPHA5, FANCM and MAP3K1. Mutations in CDKN2A significantly reduced tumor‐free and overall survival in sarcomatoid HCC patients. Moreover, 46.6% sarcomatoid HCC patients had druggable mutations in cell cycle pathway genes, which were targeted by Abemaciclib, et al. We also found sarcomatoid and non‐sarcomatoid lesions might originate from a common progenitor but progress differently. Conclusion Our cancer genome analysis showed a specific genomic profile of sarcomatoid HCC, which were characterized by a high mutation rate in cell cycle genes particularly CDKN2A. The results indicate CDK4/6 inhibitors including abemaciclib, ribociclib and palbociclib as potential therapeutic targets and may help for therapeutic decision making.
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spelling doaj.art-2f743900eb4743ff9054a205bec9fc2a2022-12-21T22:12:08ZengWileyCancer Medicine2045-76342021-09-0110186227623810.1002/cam4.4162Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genomeCheng Zhang0Shi Feng1Zhenhua Tu2Jingqi Sun3Tao Rui4Xueyou Zhang5Haitao Huang6Qi Ling7Shusen Zheng8Department of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Pathology the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaDepartment of Surgery the First Affiliated HospitalZhejiang University School of Medicine Hangzhou ChinaAbstract Background Sarcomatoid hepatocellular carcinoma (HCC) is a rare and highly lethal histological subtype of HCC, with completely unknown genetic etiology and therapeutic targets. Methods We included 16 patients with sarcomatoid HCC receiving radical resection among 6731 cases of pathological confirmed HCC in year 2008 to 2018 in our hospital. We compared the clinical features, prognosis and cancer genome between 15 sarcomatoid HCC and propensity score‐matched 75 non‐sarcomatoid HCC patients. The other concurrent case was analyzed using phylogenetic tree to assess the tumor heterogeneity and evolution. Results Sarcomatoid HCC group showed larger tumor size, more advanced differentiation grade, lower tumor free survival (p = 0.038) and overall survival (p = 0.001), and sarcomatoid type was an independent risk factor for patient death. Integrating sarcomatoid subtype into AJCC staging could increase the diagnostic curve in predicting patient survival. The cancer genome spectrum showed sarcomatoid HCC group had significant higher mutation rates in CDKN2A, EPHA5, FANCM and MAP3K1. Mutations in CDKN2A significantly reduced tumor‐free and overall survival in sarcomatoid HCC patients. Moreover, 46.6% sarcomatoid HCC patients had druggable mutations in cell cycle pathway genes, which were targeted by Abemaciclib, et al. We also found sarcomatoid and non‐sarcomatoid lesions might originate from a common progenitor but progress differently. Conclusion Our cancer genome analysis showed a specific genomic profile of sarcomatoid HCC, which were characterized by a high mutation rate in cell cycle genes particularly CDKN2A. The results indicate CDK4/6 inhibitors including abemaciclib, ribociclib and palbociclib as potential therapeutic targets and may help for therapeutic decision making.https://doi.org/10.1002/cam4.4162genomesarcomatoid hepatocellular carcinomasurvivaltherapy
spellingShingle Cheng Zhang
Shi Feng
Zhenhua Tu
Jingqi Sun
Tao Rui
Xueyou Zhang
Haitao Huang
Qi Ling
Shusen Zheng
Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
Cancer Medicine
genome
sarcomatoid hepatocellular carcinoma
survival
therapy
title Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
title_full Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
title_fullStr Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
title_full_unstemmed Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
title_short Sarcomatoid hepatocellular carcinoma: From clinical features to cancer genome
title_sort sarcomatoid hepatocellular carcinoma from clinical features to cancer genome
topic genome
sarcomatoid hepatocellular carcinoma
survival
therapy
url https://doi.org/10.1002/cam4.4162
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