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Jeong Il Yu

Sungkyunkwan University · Medicine

About the Lab

Professor Jeong Il Yu's research lab specializes in radiation oncology and hepatocellular carcinoma (HCC) therapeutics, with a focus on optimizing radiotherapy strategies for advanced HCC, particularly in patients with portal vein tumor thrombosis (PVTT). The lab investigates the integration of systemic therapies—such as immune checkpoint inhibitors (e.g., nivolumab) and targeted agents (e.g., sorafenib)—with advanced radiation techniques, including proton beam and photon therapy. A key research direction involves enhancing radiotherapy efficacy through radiosensitizers like valproic acid (VPA), especially in combination with proton therapy. The lab also develops prognostic models to guide personalized treatment decisions in HCC patients with complex disease features.

hepatocellular carcinomaradiation therapyproton therapyimmune checkpoint inhibitorsprognostic modeling

Research Overview

Papers
166
Total Citations
3,024
Papers (5y)
48
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
48total
2022
2023
2024
2025
2026
Citations per year (5y)
523total
20222023202420252026

Selected Papers

15
1
Article|64 citations·2010
Differences in prognostic factors and patterns of failure between invasive micropapillary carcinoma and invasive ductal carcinoma of the breast: Matched case–control study
Jeong Il Yu, Doo Ho Choi, Won Park, Seung Jae Huh, Eun Yoon Cho, Young Hyuk Lim, Jin Suk Ahn, Jung Hyun Yang, Suk Jin Nam
SJR Q1The BreastOA

Our study showed that IMPC is associated with LVI, ECE, high nuclear grade, and a greater degree of loco-regional recurrence, especially in the axilla and supraclavicular areas. Therefore, axillary and supraclavicular radiation therapy should be considered in IMPC patients with axillary node metastasis.

Cancer ResearchBiochemistry, Genetics and Molecular Biology
2
Review|62 citations·2016
Radiotherapy as valid modality for hepatocellular carcinoma with portal vein tumor thrombosis
Jeong Il Yu, Hee Chul Park
SJR Q1World Journal of GastroenterologyOA

Although the current standard treatment for hepatocellular carcinoma (HCC) with portal vein tumor thrombosis (PVTT) is sorafenib, many previous studies have established the need for a reliable local modality for PVTT control, which is a major cause of liver function deterioration and metastasis. Additionally, there is growing evidence for the prognostic significance of PVTT classification according to the location of tumor thrombosis. Favorable outcomes can be obtained by applying local modaliti

HepatologyMedicine
3
Article|61 citations·2011
Prognostic Index for Portal Vein Tumor Thrombosis in Patients with Hepatocellular Carcinoma Treated with Radiation Therapy
Jeong Il Yu, Hee Chul Park, Do Hoon Lim, Won Park, Byung Chul Yoo, Seung Woon Paik, Kwang Cheol Koh, Joon Hyuk Lee
SJR Q2Journal of Korean Medical ScienceOA

We performed a retrospective review of 281 hepatocellular carcinoma (HCC) patients with portal vein tumor thrombosis (PVTT) treated with radiation therapy (RT) between 1998 and 2008 to develop a prognostic model for those patients. Of the 281 patients, PVTT and intrahepatic main masses completely disappeared in 10 patients (3.6%), and shown a partial response in 141 patients (50.2%). The median survival was 11.6 months. Patients who had more than PR have shown significantly longer survival than

HepatologyMedicine
4
Article|55 citations·2015
Differences in Prognostic Factors and Failure Patterns Between Invasive Micropapillary Carcinoma and Carcinoma With Micropapillary Component Versus Invasive Ductal Carcinoma of the Breast: Retrospective Multicenter Case–Control Study (KROG 13-06)
Jeong Il Yu, Doo Ho Choi, Seung Jae Huh, Eun Yoon Cho, Kyubo Kim, Eui Kyu Chie, Sung Whan Ha, In Ae Park, Sung‐Ja Ahn, Ji Shin Lee, Kyung Hwan Shin, Youngmee Kwon
SJR Q2Clinical Breast CancerOA
Cancer ResearchBiochemistry, Genetics and Molecular Biology
5
Article|50 citations·2011
Prognostic Index for Portal Vein Tumor Thrombosis in Patients with Hepatocellular Carcinoma Treated with Radiation Therapy
유정일, 박희철, 임도훈, 박원, 유병철, 백승운, 고광철, 이준혁
Journal of Korean Medical Science

We performed a retrospective review of 281 hepatocellular carcinoma (HCC) patients with portal vein tumor thrombosis (PVTT) treated with radiation therapy (RT) between 1998 and 2008 to develop a prognostic model for those patients. Of the 281 patients, PVTT and intrahepatic main masses completely disappeared in 10 patients (3.6%), and shown a partial response in 141 patients (50.2%). The median survival was 11.6 months. Patients who had more than PR have shown significantly longer survival than

6
Article|48 citations·2020
Incorporating sarcopenia and inflammation with radiation therapy in patients with hepatocellular carcinoma treated with nivolumab
Nalee Kim, Jeong Il Yu, Hee Chul Park, Gyu Sang Yoo, Changhoon Choi, Jung Yong Hong, Ho Yeong Lim, Jeeyun Lee, Moon Seok Choi, Jung Eun Lee, Kyunga Kim
SJR Q1Cancer Immunology ImmunotherapyOA
OncologyMedicine
7
Article|48 citations·2019
Clinical significance of radiotherapy before and/or during nivolumab treatment in hepatocellular carcinoma
Jeong Il Yu, Su Jin Lee, Jeeyun Lee, Ho Yeong Lim, Seung Woon Paik, Gyu Sang Yoo, Changhoon Choi, Hee Chul Park
SJR Q1Cancer MedicineOA

BACKGROUND: This study aimed to investigate the clinical significance of previous and/or concurrent application of radiotherapy (RT) in the course of nivolumab treatment for advanced hepatocellular carcinoma (HCC). METHODS: Patients with advanced HCC who received nivolumab treatment between March 2017 and May 2018. were included. Nivolumab treatment was indicated in patients who did not respond to conventional therapy including locoregional therapy and/or sorafenib. RT was performed when necessa

HepatologyMedicine
8
Article|48 citations·2010
Determining Which Patients Require Irradiation of the Supraclavicular Nodal Area After Surgery for N1 Breast Cancer
Jeong Il Yu, Won Park, Seung Jae Huh, Doo Ho Choi, Young Hyuk Lim, Jin Suk Ahn, Jung Hyun Yang, Suk Jin Nam
SJR Q1International Journal of Radiation Oncology*Biology*Physics
Cancer ResearchBiochemistry, Genetics and Molecular Biology
9
Article|48 citations·2017
Valproic Acid Sensitizes Hepatocellular Carcinoma Cells to Proton Therapy by Suppressing NRF2 Activation
Jeong Il Yu, Changhoon Choi, Sung-Won Shin, A-Rang Son, Ga-Haeng Lee, Shin‐Yeong Kim, Hee Chul Park
SJR Q1Scientific ReportsOA

Although efficacy of combined histone deacetylase (HDAC) inhibitors and conventional photon radiotherapy is being tested in clinical trials, their combined effect with proton beam radiotherapy has yet to be determined. Here, we compared combined effect of valproic acid (VPA), a class I and II HDAC inhibitor and antiepileptic drug with proton and photon irradiation in hepatocellular carcinoma (HCC) cells in vitro and in vivo. We found that VPA sensitized more Hep3B cells to proton than to photon

Molecular BiologyBiochemistry, Genetics and Molecular Biology
10
Article|43 citations·2016
Clinical impact of combined transarterial chemoembolization and radiotherapy for advanced hepatocellular carcinoma with portal vein tumor thrombosis: An external validation study
Jeong Il Yu, Jae Won Park, Hee Chul Park, Sang Min Yoon, Do Hoon Lim, Joon Hyeok Lee, Han Chu Lee, Seon Woo Kim, Jong Hoon Kim
SJR Q1Radiotherapy and Oncology
HepatologyMedicine
11
Article|36 citations·2015
Effects of adjuvant radiotherapy on completely resected gastric cancer: A radiation oncologist’s view of the ARTIST randomized phase III trial
Jeong Il Yu, Do Hoon Lim, Do Hoon Lim, Yong Chan Ahn, Jeeyun Lee, Won Ki Kang, Se Hoon Park, Joon Oh Park, Young Suk Park, Ho Yeong Lim, Ho Yeong Lim, Seung Tae Kim
SJR Q1Radiotherapy and Oncology
Pulmonary and Respiratory MedicineMedicine
12
Article|32 citations·2014
Unique Characteristics and Failure Patterns of Metaplastic Breast Cancer in Contrast to Invasive Ductal Carcinoma: A Retrospective Multicenter Case–Control Study (KROG 13-07)
Jeong Il Yu, Doo Ho Choi, Seung Jae Huh, Sung‐Ja Ahn, Ji Shin Lee, Kyung Hwan Shin, Youngmee Kwon, Yong Bae Kim, Chang‐Ok Suh, Jin Hee Kim, Jihyoung Cho, In Ah Kim
SJR Q2Clinical Breast CancerOA
Pathology and Forensic MedicineMedicine
13
Article|32 citations·2014
The Role of Diffusion-Weighted Magnetic Resonance Imaging in the Treatment Response Evaluation of Hepatocellular Carcinoma Patients Treated With Radiation Therapy
Jeong Il Yu, Hee Chul Park, Do Hoon Lim, Yunseon Choi, Sang Hoon Jung, Seung Woon Paik, Seong Hyun Kim, Woo Kyoung Jeong, Young Kon Kim
SJR Q1International Journal of Radiation Oncology*Biology*Physics
Radiology, Nuclear Medicine and ImagingMedicine
14
Article|30 citations·2012
Scheduled Interval Trans-Catheter Arterial Chemoembolization Followed by Radiation Therapy in Patients with Unresectable Hepatocellular Carcinoma
Jeong Il Yu, Hee Chul Park, Do Hoon Lim, Cheol Jin Kim, Dongryul Oh, Byung Chul Yoo, Seung Woon Paik, Kwang Cheol Kho, Joon Hyuk Lee
SJR Q2Journal of Korean Medical ScienceOA

Combination treatment of trans-catheter arterial chemoembolization (TACE) and conformal radiation therapy (RT) reported promising results in patients with hepatocellular carcinoma (HCC), but, optimal interval was not determined. We hypothesized that a two-week interval between TACE and RT would be optimal. Therefore, we designed this study to evaluate the safety and efficacy of scheduled interval TACE followed by RT. HCC patients who were not eligible for standard therapies were enrolled for sch

HepatologyMedicine
15
Article|26 citations·2012
Scheduled Interval Trans-Catheter Arterial Chemoembolization Followed by Radiation Therapy in Patients with Unresectable Hepatocellular Carcinoma
유정일, 박희철, 임도훈, 김철진, Dongryul Oh, 유병철, 백승운, 고광철, 이준혁
Journal of Korean Medical Science

Combination treatment of trans-catheter arterial chemoembolization (TACE) and conformal radiation therapy (RT) reported promising results in patients with hepatocellular carcinoma (HCC), but, optimal interval was not determined. We hypothesized that a twoweek interval between TACE and RT would be optimal. Therefore, we designed this study to evaluate the safety and efficacy of scheduled interval TACE followed by RT. HCC patients who were not eligible for standard therapies were enrolled for sche

Research Areas

HepatologyOncologyPulmonary and Respiratory MedicineCancer ResearchSurgeryRadiology, Nuclear Medicine and Imaging

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