Mary Wong, Jong T Kim, Brian Cox, Brent K Larson, Stacey Kim, Kevin M Waters, Eric Vail, Maha Guindi
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Evaluation of tumor mutational burden in small early hepatocellular carcinoma and progressed hepatocellular carcinoma.
While researchers know that tumor mutational burden (TMB) is low in hepatocellular carcinoma (HCC), prior studies have not investigated TMB in cirrhosis, small early HCC and progressed HCC. HCC (n = 18) and cirrhosis (n = 6) cases were identified. TMB was determined by a 1.7 megabase, 409-gene next-generation sequencing panel. TMB values were defined as the number of nonsynonymous variants per megabase of sequence. There was no significant difference between cirrhosis versus small early HCC or between cohorts when stratified by size, early versus progressed, differentiation or morphology. There was a significant difference between cirrhosis and small early HCC versus progressed HCC (p = 0.045), suggesting TMB may be related to HCC progression. TMB similarities in small early HCC and background cirrhosis suggest TMB is not a useful tool for diagnosing small early HCC. Additional study is needed to address TMB in histological and molecular subsets of HCC.
期刊介绍：
Primary liver cancer is the sixth most common cancer in the world, and the third most common cause of death from malignant disease. Traditionally more common in developing countries, hepatocellular carcinoma is becoming increasingly prevalent in the Western world, primarily due to an increase in hepatitis C virus infection. Emerging risk factors, such as non-alcoholic fatty liver disease and obesity are also of concern for the future. In addition, metastatic tumors of the liver are more common than primary disease. Some studies report hepatic metastases in as many as 40 to 50% of adult patients with extrahepatic primary tumors. Hepatic Oncology publishes original research studies and reviews addressing preventive, diagnostic and therapeutic approaches to all types of cancer of the liver, in both the adult and pediatric populations. The journal also highlights significant advances in basic and translational research, and places them in context for future therapy. Hepatic Oncology provides a forum to report and debate all aspects of cancer of the liver and bile ducts. The journal publishes original research studies, full reviews and commentaries, with all articles subject to independent review by a minimum of three independent experts. Unsolicited article proposals are welcomed and authors are required to comply fully with the journal''s Disclosure & Conflict of Interest Policy as well as major publishing guidelines, including ICMJE and GPP3.
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