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8 "Pil Soo Sung"
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Editorial
Radiofrequency for hepatocellular carcinoma larger than 3 cm: potential for applications in daily practice
Ji Hoon Kim, Pil Soo Sung
J Liver Cancer. 2024;24(1):1-2.   Published online March 14, 2024
DOI: https://doi.org/10.17998/jlc.2024.02.13
  • 269 Views
  • 23 Downloads
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Case Report
Multidisciplinary approach for hepatocellular carcinoma arising from cirrhotic liver with Budd-Chiari syndrome: a case report
Sangmi Kim, Ji Hoon Kim, Ji Won Han, Jeong Won Jang, Jong Young Choi, Seung Kew Yoon, Pil Soo Sung
J Liver Cancer. 2022;22(2):202-206.   Published online September 20, 2022
DOI: https://doi.org/10.17998/jlc.2022.09.17
  • 1,882 Views
  • 45 Downloads
AbstractAbstract PDF
Budd-Chiari syndrome (BCS) is defined by the obstruction of the hepatic venous outflow between the small hepatic veins and the junction of the inferior vena cava (IVC) with the right atrium. BCS with IVC obstruction occasionally progresses to hepatocellular carcinoma (HCC). Here, we report the case of a patient with HCC arising from a cirrhotic liver with BCS, in whom the hepatic portion of the IVC was obstructed, and who had a favorable outcome with a multidisciplinary approach and IVC balloon angioplasty.
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Original Articles
Diagnostic performance of serum exosomal miRNA-720 in hepatocellular carcinoma
Jeong Won Jang, Ji Min Kim, Hye Seon Kim, Jin Seoub Kim, Ji Won Han, Soon Kyu Lee, Heechul Nam, Pil Soo Sung, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon
J Liver Cancer. 2022;22(1):30-39.   Published online March 21, 2022
DOI: https://doi.org/10.17998/jlc.2022.02.25
  • 3,838 Views
  • 131 Downloads
AbstractAbstract PDFSupplementary Material
Background/Aim
Hepatocellular carcinoma (HCC) is associated with poor prognosis, largely due to late detection. Highly accurate biomarkers are urgently needed to detect early-stage HCC. Our study aims to explore the diagnostic performance of serum exosomal microRNA (miR)-720 in HCC.
Methods
Exosomal miRNA was measured via quantitative real-time PCR. A correlation analysis of exosomal miR-720 and tumor or clinico-demographic data of patients with HCC was performed. The receiver operating characteristic (ROC) curve was used to assess the diagnostic capacity of serum exosomal miR-720 for HCC, in comparison with α-fetoprotein (AFP) and prothrombin induced by vitamin K absence or antagonist-II (PIVKA-II).
Results
MiR-720 was chosen as a potential HCC marker via miR microarray based on significant differential expression between tumor and non-tumor samples. Serum exosomal miR-720 was significantly upregulated in patients with HCC (n=114) versus other liver diseases (control, n=30), with a higher area under the ROC curve (AUC=0.931) than the other markers. Particularly, serum exosomal miR-720 showed superior performance in diagnosing small HCC (< 5 cm; AUC=0.930) compared with AFP (AUC=0.802) or PIVKA-II (AUC=0.718). Exosomal miR-720 levels showed marginal correlation with tumor size. The proportion of elevated miR-720 also increased with intrahepatic tumor stage progression. Unlike AFP or PIVKA-II showing a significant correlation with aminotransferase levels, the exosomal miR-720 level was not affected by aminotransferase levels.
Conclusions
Serum exosomal miR-720 is an excellent biomarker for the diagnosis of HCC, with better performance than AFP or PIVKA-II. Its diagnostic utility is maintained even in small HCC and is unaffected by aminotransferase levels.
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Infiltration of T Cells and Programmed Cell Death Ligand 1-expressing Macrophages as a Potential Predictor of Lenvatinib Response in Hepatocellular Carcinoma
Pil Soo Sung, Sung Woo Cho, Jaejun Lee, Hyun Yang, Jeong Won Jang, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon
J Liver Cancer. 2020;20(2):128-134.   Published online September 30, 2020
DOI: https://doi.org/10.17998/jlc.20.2.128
  • 3,270 Views
  • 98 Downloads
  • 6 Citations
AbstractAbstract PDF
Background/Aim
s: Lenvatinib was recently proven to be non-inferior to sorafenib in treating unresectable hepatocellular carcinoma (HCC) in a phase-3 randomized controlled trial. In this study, we investigated whether the response to lenvatinib was affected by tumor immunogenicity.
Methods
Between May 2019 and April 2020, nine patients with intermediate-to-advanced HCC, who were treated with lenvatinib after liver biopsy, were enrolled. Immunohistochemical staining and multi-color flow cytometry were performed on specimens obtained from liver biopsy.
Results
Among the nine patients enrolled, four showed objective responses (complete responses+partial responses). Immunohistochemical staining for CD3, CD68, and programmed cell death ligand 1 (PD-L1) demonstrated that patients with objective responses showed marked infiltration of T cells and PD-L1-expressing macrophages in intra-tumoral and peri-tumoral tissues compared to those without objective responses. A significant difference in the numbers of infiltrated T cells, both in the intra-tumoral (P<0.01) and peri-tumoral regions (P<0.05), were identified between responders and non-responders. Regarding the number of infiltrated macrophages, no significant difference was found between the responders and non-responders, although the number of PD-L1-expressing tumor-associated macrophages was significantly higher in responders than that in non-responders (P<0.05).
Conclusions
Tumor immunogenicity, as indicated by T cell and PD-L1-positive macrophage infiltration, affects lenvatinib response in unresectable HCC.

Citations

Citations to this article as recorded by  
  • Higher Number of Tumor-Infiltrating PD-L1+ Cells Is Related to Better Response to Multikinase Inhibitors in Hepatocellular Carcinoma
    Ji Won Han, Ji Hoon Kim, Dong Hyun Kim, Jeong Won Jang, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon, Jaegyoon Ahn, Hyun Yang, Pil Soo Sung
    Diagnostics.2023; 13(8): 1453.     CrossRef
  • Intrahepatic inflammatory IgA+PD-L1high monocytes in hepatocellular carcinoma development and immunotherapy
    Pil Soo Sung, Dong Jun Park, Pu Reun Roh, Kyoung Do Mun, Sung Woo Cho, Gil Won Lee, Eun Sun Jung, Sung Hak Lee, Jeong Won Jang, Si Hyun Bae, Jong Young Choi, Jonghwan Choi, Jaegyoon Ahn, Seung Kew Yoon
    Journal for ImmunoTherapy of Cancer.2022; 10(5): e003618.     CrossRef
  • Crosstalk between tumor-associated macrophages and neighboring cells in hepatocellular carcinoma
    Pil Soo Sung
    Clinical and Molecular Hepatology.2022; 28(3): 333.     CrossRef
  • Blood-based biomarkers for immune-based therapy in advanced HCC: Promising but a long way to go
    Pil Soo Sung, Isaac Kise Lee, Pu Reun Roh, Min Woo Kang, Jaegyoon Ahn, Seung Kew Yoon
    Frontiers in Oncology.2022;[Epub]     CrossRef
  • Immunological Mechanisms for Hepatocellular Carcinoma Risk after Direct-Acting Antiviral Treatment of Hepatitis C Virus Infection
    Pil Soo Sung, Eui-Cheol Shin
    Journal of Clinical Medicine.2021; 10(2): 221.     CrossRef
  • Preferential Expression of Programmed Death Ligand 1 Protein in Tumor-Associated Macrophages and Its Potential Role in Immunotherapy for Hepatocellular Carcinoma
    Dong-Jun Park, Pil-Soo Sung, Gil-Won Lee, Sung-Woo Cho, Sung-Min Kim, Byung-Yoon Kang, Won-Hee Hur, Hyun Yang, Soon-Kyu Lee, Sung-Hak Lee, Eun-Sun Jung, Chang-Ho Seo, Joseph Ahn, Ho-Joong Choi, Young-Kyoung You, Jeong-Won Jang, Si-Hyun Bae, Jong-Young Cho
    International Journal of Molecular Sciences.2021; 22(9): 4710.     CrossRef
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Case Reports
Successful Sequential Therapy Involving Regorafenib after Failure of Sorafenib in a Patient with Recurrent Hepatocellular Carcinoma after Liver Transplantation
Soon Kyu Lee, Jeong Won Jang, Heechul Nam, Pil Soo Sung, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon
J Liver Cancer. 2020;20(1):84-89.   Published online March 31, 2020
DOI: https://doi.org/10.17998/jlc.20.1.84
  • 3,341 Views
  • 89 Downloads
AbstractAbstract PDF
The efficacy and safety of sequential systemic therapy for the treatment of recurrent hepatocellular carcinoma (HCC) after liver transplantation (LT) are not well established. This study describes a successful experience where sequential therapy with sorafenib followed by regorafenib was used to treat recurrent HCC in a 54-year old male LT recipient. After HCC recurred in both lungs 10 months after LT, sorafenib was administered with radiation therapy to treat pulmonary metastases. However, after 4 months of sorafenib treatment showed progressive pulmonary metastases, sequential regorafenib treatment was started. After 3 months (cycles) of regorafenib treatment, tumor response was partial, and after 6 months (cycles), disease status remained stable without signs of progression or drug-related serious adverse events. This case suggests that sequential systemic therapy is feasible in patient with recurrent HCC after LT.
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Early Onset Polymorphic Post-transplant Lymphoproliferative Disease Mimicking a Solitary Necrotizing Abscess in a Graft Liver
Pil Soo Sung, Jaejun Lee, Joon Lee, Hee Chul Nam, Si Hyun Bae, Seung Kew Yoon
J Liver Cancer. 2019;19(2):165-170.   Published online September 30, 2019
DOI: https://doi.org/10.17998/jlc.19.2.165
  • 4,863 Views
  • 74 Downloads
AbstractAbstract PDF
Although post-transplantation lymphoproliferative disease (PTLD) after liver transplantation is very rare, its prognosis is worse than that of PTLD following other types of solid organ transplantation. Here, we report a rare case of early onset polymorphic PTLD in a graft liver occurring five months after deceased-donor liver transplantation due to hepatocellular carcinoma and hepatitis C virus infection. Initially, findings from contrast-enhanced magnetic resonance imaging mistakenly suspected the lesion was a necrotizing abscess with central necrosis. However, 18F-fluorodeoxyglucose positron emission tomography and biopsy findings confirmed an Epstein-Barr virus (EBV)-associated, B cell type polymorphic PTLD with central necrosis. Our case suggests regular monitoring of EBV serologic status for liver transplant recipients who were initially in an EBV seronegative state. Although early-onset PTLD is very rare after liver transplantation, PTLD should be suspected when recipients show the seroconversion for EBV proteins and the development of new tumors with various clinical presentations.
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Liver Transplantation after Successful Downstaging with Hepatic Arterial Infusion Chemotherapy in a Patient with Hepatocellular Carcinoma with Portal Vein Tumor Thrombus
Hee Chul Nam, Pil Soo Sung, Ho Jong Chun, Dong Goo Kim, Jeong Won Jang, Jong Young Choi, Seung Kew Yoon
J Liver Cancer. 2019;19(1):64-68.   Published online March 31, 2019
DOI: https://doi.org/10.17998/jlc.19.1.64
  • 3,247 Views
  • 58 Downloads
AbstractAbstract PDF
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. The majority of patients with HCC are diagnosed at advanced disease stages with vascular invasion, where curative approaches are often not feasible. Currently, sorafenib is the only available standard therapy for HCC with portal vein tumor thrombosis (PVTT). However, in many cases, sorafenib therapy fails to achieve satisfactory results in clinical practice. We present a case of advanced HCC with PVTT that was treated with hepatic arterial infusion chemotherapy (HAIC) followed by liver transplantation. Three cycles of HAIC treatment resulted in necrotic changes in most of the tumors, and PVTT was reduced to an extent at which liver transplantation was possible. Further studies are required to determine the treatment strategies for advanced HCC with PVTT that can improve prognosis.
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Conus Medullaris Syndrome after Transcatheter Arterial Chemoembolization in Patient with Hepatocellular Carcinoma
Sun Hong Yoo, Si Hyun Bae, Pil Soo Sung, Hee Yeon Kim, Do Seon Song, Myeong Jun Song, Jong Young Choi, Seung Kew Yoon, Ho Jong Chun
Journal of the Korean Liver Cancer Study Group. 2011;11(2):185-189.   Published online September 30, 2011
  • 585 Views
  • 7 Downloads
AbstractAbstract PDF
Hepatocellular carcinoma (HCC) is the fourth most common cancer in Korea and a common cause of cancer death. Transcatheter arterial chemoembolization (TACE) is used as palliative therapy for patients with inoperable HCC. TACE is an effective treatments for inoperable HCC, but variable complications due to using embolic agents can occur after TACE. Complications due to embolic agents include pulmonary lipiodol embolism, splenic infarction, cerebral lipiodol infarction, and spinal cord injury. This is a rare case of spinal cord injury after a sixth TACE via right T9 intercostal artery.
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JLC : Journal of Liver Cancer