Liver cancer is one of the leading causes of cancer-related death in Korea. Liver cancer imposes
a considerable societal burden due to its high incidence and high mortality rate in younger
patients, as compared to other cancers. However, interest in liver cancer among researchers
and health-policy makers is low. In this review, recent trends in the number of published
articles on liver cancer in Korea and internationally were analyzed. The key finding is that
the rate of growth in the number of published articles on liver cancer is slowly decreasing
and financial investment for research into liver cancer is very limited, despite the increasing
research and development investment budget in Korea. Meanwhile, the rate of growth of
research into liver cancer in China has recently increased markedly. Therefore, the scale and
rate of growth of research into liver cancer in Korea should be enhanced.
The advent of oral antiviral agents has revolutionized hepatitis B treatment. It has led to
decreased incidence and mortality related to hepatocellular carcinoma. However, although
nucleos(t)ide analogs (NA) are fast and potent in inhibiting hepatitis B virus (HBV) polymerase
and reverse transcriptase activity, complete cure of the virus is not possible. The complete
eradication of HBV requires the covalently-closed-circular DNA (cccDNA) to be eliminated.
Novel gene editing methods, such as zing finger nucleases, transcription activator-like effector
nucleases, and the clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/
Cas9) system, designed to target specific DNA sequences has great potential for therapeutic
application. Among these, the CRISPR/Cas9 system may be the most feasible approach to
eradicate HBV cccDNA. Further studies are needed to develop a more efficient and safer
method of delivery using the CRISPR/Cas9 system to achieve complete cure of chronic
hepatitis B.
Hepatocellular carcinoma (HCC) is one of the most common life-threatening cancers worldwide.
Recently, many patients with non-alcoholic fatty liver disease (NAFLD) and non-alcoholic
steatohepatitis (NASH) have progressed to HCC even in the absence of cirrhosis. As the
morbidity of metabolic syndrome increases, the proportion of HCC associated with NAFLD is
expected to increase gradually. A new mechanism for the development of HCC in NAFLD has
been identified; Diabetes mellitus, insulin resistance, obesity, lipotoxicity, gut dysbiosis are risk
factors. Inflammatory cytokines such as adipokines, leptin, tumor necrosis factor-α, interlukin-8,
nuclear factor-κB constitute dysplasia-carcinoma sequence. At the time of diagnosis, NAFLD/
NASH related HCC tend to progress to larger and in advanced tumor-node-metastasis stages
compared to viral hepatitis related HCC. But there are no guidelines for early detection of
NAFLD-related HCC. So, it is essential to study the screening program for the early detection of
NAFLD-related HCC and precise methods for NAFLD.
Background/Aims Hepatitis B viral protein X (HBx) is implicated in the pathogenesis of
hepatocellular carcinoma (HCC) as well as the elevation of heat shock proteins (HSPs) after
hepatitis B virus (HBV) infection. We thus investigated the anticancer effects of an HSP90
inhibitor 17-Dimethylaminoethylamino-17-demethoxygeldanamycin (17-DMAG) in HBxtransfected
hepatocellular carcinoma cells.
Methods pcDNA-HBx was made by inserting the HBx gene derived from the HBV-infected
patient into pcDNA3.1 using the restriction enzymes (XbaI/HindIII). HBx-expressing HepG2
cells were then generated by transfecting HepG2 cells with pcDNA containing HBx gene. To
compare the anticancer effects of 17-DMAG between pcDNA-HBx transfected HepG2 cells and
the control cells (pcDNA-transfected HepG2 cells), we performed various molecular studies,
including Ez-cytox proliferation assay, Western blot analysis, and flow cytometry.
Results 17-DMAG inhibited the proliferation of pcDNA-HBx transfected HepG2 cells better
than control cells (P<0.05). After treating with a various concentration of 17-DMAG (50–1,000
nM), pcDNA-HBx transfected HepG2 cells exhibited higher expression of pro-apoptotic
proteins (c-caspase-3, c-caspase-8, and c-caspase-9) than did control cells (P<0.05). pcDNAHBx
transfected HepG2 cells showed higher activities of caspase-3, caspase-8, and caspase-9
than did control cells (P<0.05). Finally, we found that the expression of pro-apoptotic
proteins (PARP and c-caspase-3) was considerably decreased by the use of a caspase inhibitor
suggesting that 17-DMAG induces the cell death of HepG2 cells caspase-dependently.
Conclusions Our study strongly suggests that 17-DMAG has antiviral effects against HBV as
well as anticancer effects against HepG2 cells. Thus, the application of 17-DMAG appears to be
particularly advantageous to the HCC patients related with HBV infection.
Background/Aims To optimize efficacy of National Liver Cancer Screening Program (NLCSP)
for subjects with chronic hepatitis B (CHB), it is needed to know the incidence of liver cancer
and its predisposing factors in the program.
Methods From January 2010 to December 2014, all the hepatitis B surface antigen (HBsAg)
positive participants who received at least two or more abdominal ultrasonography under
NLCSP were retrospectively enrolled in a single tertiary hospital. Annual incidence of primary
liver cancer was calculated and related clinical factors were investigated.
Results During 5 years, 541 subjects were enrolled. Mean age was 53 years old and 292
subjects (54%) were receiving antiviral agents. Liver cirrhosis (LC) was diagnosed in 212 (39.2%).
Mean follow-up time was 2.36 years and 15 hepatocellular carcinoma and 1 intrahepatic
cholangiocarcinoma were diagnosed. Annual incidence of primary liver cancer was 9.8
per 1,000 patient year. Cumulative incidence at 1, 3, and 5 year was 0.6%, 2.6%, and 6.4%,
respectively. In multivariate analyses, LC (hazard ratio [HR] 8.74, 95% confidence interval [CI]
1.97–38.71, P=0.024), age (HR 1.08, 95% CI 1.01–1.15, P=0.024) were significantly associated
with cancer development.
Conclusions Despite of high rate of oral antiviral therapy, incidence of primary liver cancer
is not low in CHB patients in Korea. Old age and presence of LC are independently associated
with higher risk of cancer development during surveillance. This study could be used as
baseline data for quality control of NLCSP.
Citations
Citations to this article as recorded by
Effectiveness of Hepatocellular Carcinoma Surveillance and an Optimal Surveillance Interval: Nationwide Cohort of Korea Heejin Bae, Sang Ah Lee, Jong Won Choi, Shin Hye Hwang, Sumi Park, Mi-Suk Park Yonsei Medical Journal.2021; 62(8): 758. CrossRef
A Survey of Liver Cancer Specialists’ Views on the National Liver Cancer Screening Program in Korea Won Sohn, Young-Sun Lee, Jae Geun Lee, Jihyun An, Eun Sun Jang, Dong Ho Lee, Dong Hyun Sinn Journal of Liver Cancer.2020; 20(1): 53. CrossRef
Discrepancy between the Actual Clinical Status of Patients with Hepatocellular Carcinoma and Expectations from Hepatocellular Carcinoma Surveillance: a Single-Center Study Nak Min Kim, Young Seok Doh, Ji Woong Jang, Seok-Hwan Kim, Hyuk Soo Eun, Jae Hyuck Jun, Sae Hee Kim, Il Hyun Baek, Sung Hee Jung Journal of Liver Cancer.2019; 19(1): 30. CrossRef
Background/Aims To retrospectively compare conventional and drug-eluting beads transarterial
chemoembolization (C-TACE and DEB-TACE) for treatment of hepatocellular carcinoma
(HCC) at very early and early stages.
Methods We retrospectively compared patients treated with C-TACE (n=115) or DEB-TACE
(n=103) from September 2009 to May 2016. All patients were in a very early (stage 0) or early
stage (stage A) of the Barcelona Clinic Liver Cancer (BCLC) staging system, and all had Child–
Pugh class A and ≤B7 liver status. Approval by the institutional review board was waived
because the study was retrospective. The following parameters were evaluated: severe pain
and bradycardia during TACE, post-embolization syndrome (PES), liver function change,
complications, target tumor response, and conversion to another treatment modality.
Numeric differences were assessed by the independent Student’s t-test for continuous
variables and by chi-square test for categorical variables.
Results Severe intractable pain and bradycardia during the TACE procedure were significantly
more frequent in the C-TACE group than in the DEB-TACE group (P<0.001). The incidence and
duration of PES were significantly higher in the C-TACE group than in the DEB-TACE group
(P<0.001). The increase in liver enzymes was significantly higher in the C-TACE group than
in the DEB-TACE group (P<0.001). The deterioration of the Child-Pugh class was significantly
higher in the C-TACE group than in the DEB-TACE group (P =0.006). There was no significant
difference in serious complications except localized bile duct dilatation between the groups.
There was no significant difference between the groups in tumor response at both immediate
and 1-year assessment. The conversion rate to other treatment modalities was significantly
higher in the DEB-TACE group than in the C-TACE group (P<0.001).
Conclusions DEB-TACE is better than C-TACE in terms of procedural safety as initial treatment
in a very early or early stage of HCC.
Citations
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Superselective ablative chemo-ethanol embolization for recurrent single hepatocellular carcinoma: a 6-month outcome analysis Jae Hwan Lee, Kun Yung Kim, Chong-ho Lee, Minuk Kim, Chang Jin Yoon Journal of Liver Cancer.2024; 24(2): 217. CrossRef
Drug-Eluting Bead Transarterial Chemoembolization Versus Radiofrequency Ablation as an Initial Treatment of Single Small (≤ 3 cm) Hepatocellular Carcinoma Somin Lee, Yong Yeon Jeong, Byung Chan Lee, Sang Soo Shin, Suk Hee Heo, Hyoung Ook Kim, Chan Park, Won Gi Jeong Journal of Korean Medical Science.2023;[Epub] CrossRef
Current status of transarterial chemoembolization (TACE) agents in hepatocellular carcinoma treatment Roshana Saghafian Larijani, Nazanin Shabani Ravari, Navid Goodarzi, Shahram Akhlaghpour, Samaneh Saghafian Larijani, Mohammad Reza Rouini, Rassoul Dinarvand Journal of Drug Delivery Science and Technology.2022; 77: 103905. CrossRef
Transarterial chemoembolization using drug-eluting bead compared with radiofrequency ablation for treatment of single small hepatocellular carcinoma: a pilot non-randomized trial Tae Hoon Kim, Na Hye Kim, Jin Dong Kim, Young Nam Kim, Yu Jin Kim, Eun Jung Kim, Ki Deok Yoo, Choong Heon Ryu, Ha Hun Song, Hyun Kim Journal of Liver Cancer.2021; 21(2): 146. CrossRef
Recurrence of hepatocellular carcinoma (HCC) after hepatic resection is quite common. Peritoneal
recurrence has been considered incurable status and related to poor prognosis. Although
peritoneal metastasectomy is a therapeutic option for some selected patients with a few
peritoneal metastasis, the indication and therapeutic effect has not been clear. We report a
case of a 61-year-old man achieving complete remission of recurrent peritoneal metastasis after
repeated surgical resection by a multidisciplinary approach. Peritoneal metastasectomy might
be a therapeutic option for selected patients with localized oligonodular peritoneal metastasis.
External beam radiotherapy, transarterial chemoembolization and sorafenib are currently
standard treatments for advanced hepatocellular carcinoma (HCC) with portal vein
thrombosis. However, hepatic arterial infusion chemotherapy has been applied to advanced
stage HCC with a view to improving the therapeutic effect. We experienced a case of
advanced HCC with clinical complete response after hepatic artery infusion chemotherapy
and radiation therapy and report that.
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Citations to this article as recorded by
A Case of Hepatocellular Carcinoma with Portal Vein Tumor Thrombosis Treated by Hepatic Arterial Infusion Chemotherapy and Radiotherapy Jin Yong Lee, Jeong-Ju Yoo, Seong Joon Chun, Sun Hyun Bae, Jae Myeong Lee, Sang Gyune Kim, Young Seok Kim Journal of Liver Cancer.2020; 20(1): 78. CrossRef
Acute pulmonary infarction by tumoral thromboemboli is an extremely rare fatal complication
as the first clinical manifestation of hepatocellular carcinoma (HCC) patient with tumoral thrombi
in the inferior vena cava. The treatment method has not been established and shown to very
poor prognosis despite of trying various modalities such as anticoagulation, radiotherapy and
thromboembolectomy. Here, we describe a 74-year-old man who was diagnosed with HCC that
presented as pulmonary thromboembolism and subsequent pulmonary infarction as the first
manifestation.
The abscopal effect is a rare phenomenon that characterized by tumor regression of untreated
metastatic lesions after a local radiotherapy. The mechanisms of abscopal effect are speculated
to be associated with cytokine release and host immune system. In this case, we report a case of
abscopal effect in a 64-year-old male with hepatocellular carcinoma with lung and bone metastasis,
who had complete response in the lung after receiving radiation to the metastatic bone lesions.
Heterogeneous features of liver cancer can mimic liver abscess. Therefore it is essential to doublecheck
tumor markers in the diagnosis of liver abscess. Herein, we report a case of combined
hepatocellular-cholangiocarcinoma (cHC) occurred in an unrecognized chronic hepatitis B patient
initially misdiagnosed as liver abscess. A 49-year old male initially presented with chill, right
upper quadrant pain, and a liver mass. Mass showed peripheral enhancement in arterial phase
of computed tomography, which was not typical for hepatocellular carcinoma (HCC). Strikingly
elevated alpha-fetoprotein and fine needle aspirated pathology revealed HCC. Despite discordant
image findings he was treated with transarterial chemoembolization. He was treated with
sorafenib due to metastatic retrocaval lymphadenopathy afterwards. The mass presumed to be
HCC progressed with sorafenib. It was surgically resected and he was finally confirmed as cHC.
Discordant tumor markers with presumptive image findings should prompt the suspicion of rare
type of primary liver cancer, the cHC.
Liver transplantation for patients with hepatocellular carcinoma (HCC) within the Milan criteria
generally yields a 4-year overall survival rate of 75% and 4-year recurrence free survival rate of 83%.
But, many HCC patients present with the disease beyond the Milan criteria. On the other hands, the
overall survival of patients with advanced HCC with portal vein invasion is very poor. We report a
case of successful living donor liver transplantation for advanced HCC with portal vein invasion by
down-staging through radioembolization, hepatic arterial infusion chemotherapy, and stereotactic
body radiation therapy.