1.A Chronic Psoriasis Model Using Long-Term Imiquimod Application in IL-10-Deficient Mice: Recapitulating Skin Inflammation, Comorbidities, and Gut–Skin Axis Alterations
Jee Hyun KIM ; Soo Ran LEE ; Hyun Keun AHN ; Hyun Taek HONG ; Ui Hyeon JO ; Jong Pil IM ; Joo Sung KIM ; Min Jung KIM ; Jeonghwan LEE ; Jeong Hwan PARK ; Hyunsun PARK ; Seong-joon KOH
Annals of Dermatology 2025;37(6):383-396
Background:
Psoriasis is a persistent systemic inflammatory condition mediated by the interleukin (IL)-23/IL-17 signaling pathway. Existing murine models, including imiquimod (IMQ)-applied wild-type (WT) mice, may not reflect chronicity and systemic comorbidities of psoriasis, particularly gut-related manifestations linked to the gut–skin axis.
Objective:
To establish a murine model that more accurately reflects chronic psoriasis, its systemic comorbidities, and associated gut environment alterations.
Methods:
C57BL/6 IL-10-deficient (IL-10 knockout [KO]) and WT mice received topical IMQ or vehicle for 6 weeks. Subsequently, tissue samples from skin, colon, joints, kidneys, liver, abdominal aortas, lymph nodes, and spleens, as well as fecal and blood samples, were collected for histopathologic, immunologic, gut environment analysis.
Results:
IMQ-treated IL-10 KO mice developed prolonged psoriatic inflammatory responses with increased epidermal thickness and higher infiltration of CD45+, myeloperoxidase+, and IL-17+ cells. They also exhibited early-onset, severe colitis with marked weight loss, shortened colon length, and elevated colitis severity scores. While IMQ induced systemic inflammation in multiple organs, IL-10 KO mice did not show more severe joint, liver, or kidney involvement than WT mice. Elevated serum tumor necrosis factor alpha and plasminogen activator inhibitor-1 levels, increased heart/body weight ratio, enhanced gut permeability, and distinct gut microbiota profiles were observed in IL-10 KO mice.
Conclusion
The 6-week IMQ-applied IL-10 KO model may better reflect chronic and severe psoriasis with gut-related comorbidities, offering a valuable platform to investigate the gut–skin axis.
2.Tocilizumab for Patients with Severe Fever with Thrombocytopenia Syndrome: Tocilizumab Observational SFTS Study-1
Jeong Rae YOO ; Misun KIM ; Myeong Jin KANG ; Sora KIM ; Keun Hwa LEE ; Sang Taek HEO
Yonsei Medical Journal 2025;66(5):321-327
There is no established treatment for severe fever with thrombocytopenia syndrome (SFTS). However, the potential role of tocilizumab (TCZ) in cytokine storm modulation warrants further investigation. In this study, we aimed to investigate the therapeutic potential of TCZ in adult patients with SFTS and provide valuable insights into the development of effective treatment strategies for this challenging infectious disease by assessing the impact of TCZ on cytokine dynamics and patient outcomes. This prospective longitudinal observational study included adult patients with SFTS at a teaching hospital in Korea between April 2013 and December 2023. Patients with SFTS and interleukin (IL)-6 levels ≥30 ng/mL received TCZ. The 14- and 28-day mortality rates were compared between the TCZ and therapeutic plasma exchange (TPE) groups during the study period. Among the total of 97 patients, the clinical characteristics showed no significant differences between the TCZ (n=10) and TPE groups (n=30). Compared with TPE, TCZ treatment showed a trend towards lower mortality rate (14-day mortality rate: 10.0% vs. 16.7%, p=0.608; 28-day mortality rate:10.0% vs. 20.0%, p=0.480). Both treatments showed the potential to reduce the viral load and IL-6 levels, indicating their efficacy in managing the disease course. TCZ is a potential therapeutic option for SFTS as it modulates IL-6 levels and improves clinical outcomes.
3.Clinical practice guidelines for cervical cancer: an update of the Korean Society of Gynecologic Oncology Guidelines
Ji Geun YOO ; Sung Jong LEE ; Eun Ji NAM ; Jae Hong NO ; Jeong Yeol PARK ; Jae Yun SONG ; So-Jin SHIN ; Bo Seong YUN ; Sung Taek PARK ; San-Hui LEE ; Dong Hoon SUH ; Yong Beom KIM ; Keun Ho LEE
Journal of Gynecologic Oncology 2025;36(1):e70-
We describe the updated Korean Society of Gynecologic Oncology (KSGO) practice guideline for the management of cervical cancer, version 5.1. The KSGO announced the fifth version of its clinical practice guidelines for the management of cervical cancer in March 2024. The selection of the key questions and the systematic reviews were based on data available up to December 2022. Between 2023 and 2024, substantial findings from large-scale clinical trials and new advancements in cervical cancer research remarkably emerged. Therefore, based on the existing version 5.0, we updated the guidelines with newly accumulated clinical data and added 4 new key questions reflecting the latest insights in the field of cervical cancer. For each question, recommendation was formulated with corresponding level of evidence and grade of recommendation, all established through expert consensus.
4.Clinical practice guidelines for cervical cancer: an update of the Korean Society of Gynecologic Oncology Guidelines
Ji Geun YOO ; Sung Jong LEE ; Eun Ji NAM ; Jae Hong NO ; Jeong Yeol PARK ; Jae Yun SONG ; So-Jin SHIN ; Bo Seong YUN ; Sung Taek PARK ; San-Hui LEE ; Dong Hoon SUH ; Yong Beom KIM ; Keun Ho LEE
Journal of Gynecologic Oncology 2025;36(1):e70-
We describe the updated Korean Society of Gynecologic Oncology (KSGO) practice guideline for the management of cervical cancer, version 5.1. The KSGO announced the fifth version of its clinical practice guidelines for the management of cervical cancer in March 2024. The selection of the key questions and the systematic reviews were based on data available up to December 2022. Between 2023 and 2024, substantial findings from large-scale clinical trials and new advancements in cervical cancer research remarkably emerged. Therefore, based on the existing version 5.0, we updated the guidelines with newly accumulated clinical data and added 4 new key questions reflecting the latest insights in the field of cervical cancer. For each question, recommendation was formulated with corresponding level of evidence and grade of recommendation, all established through expert consensus.
5.Tocilizumab for Patients with Severe Fever with Thrombocytopenia Syndrome: Tocilizumab Observational SFTS Study-1
Jeong Rae YOO ; Misun KIM ; Myeong Jin KANG ; Sora KIM ; Keun Hwa LEE ; Sang Taek HEO
Yonsei Medical Journal 2025;66(5):321-327
There is no established treatment for severe fever with thrombocytopenia syndrome (SFTS). However, the potential role of tocilizumab (TCZ) in cytokine storm modulation warrants further investigation. In this study, we aimed to investigate the therapeutic potential of TCZ in adult patients with SFTS and provide valuable insights into the development of effective treatment strategies for this challenging infectious disease by assessing the impact of TCZ on cytokine dynamics and patient outcomes. This prospective longitudinal observational study included adult patients with SFTS at a teaching hospital in Korea between April 2013 and December 2023. Patients with SFTS and interleukin (IL)-6 levels ≥30 ng/mL received TCZ. The 14- and 28-day mortality rates were compared between the TCZ and therapeutic plasma exchange (TPE) groups during the study period. Among the total of 97 patients, the clinical characteristics showed no significant differences between the TCZ (n=10) and TPE groups (n=30). Compared with TPE, TCZ treatment showed a trend towards lower mortality rate (14-day mortality rate: 10.0% vs. 16.7%, p=0.608; 28-day mortality rate:10.0% vs. 20.0%, p=0.480). Both treatments showed the potential to reduce the viral load and IL-6 levels, indicating their efficacy in managing the disease course. TCZ is a potential therapeutic option for SFTS as it modulates IL-6 levels and improves clinical outcomes.
6.Tocilizumab for Patients with Severe Fever with Thrombocytopenia Syndrome: Tocilizumab Observational SFTS Study-1
Jeong Rae YOO ; Misun KIM ; Myeong Jin KANG ; Sora KIM ; Keun Hwa LEE ; Sang Taek HEO
Yonsei Medical Journal 2025;66(5):321-327
There is no established treatment for severe fever with thrombocytopenia syndrome (SFTS). However, the potential role of tocilizumab (TCZ) in cytokine storm modulation warrants further investigation. In this study, we aimed to investigate the therapeutic potential of TCZ in adult patients with SFTS and provide valuable insights into the development of effective treatment strategies for this challenging infectious disease by assessing the impact of TCZ on cytokine dynamics and patient outcomes. This prospective longitudinal observational study included adult patients with SFTS at a teaching hospital in Korea between April 2013 and December 2023. Patients with SFTS and interleukin (IL)-6 levels ≥30 ng/mL received TCZ. The 14- and 28-day mortality rates were compared between the TCZ and therapeutic plasma exchange (TPE) groups during the study period. Among the total of 97 patients, the clinical characteristics showed no significant differences between the TCZ (n=10) and TPE groups (n=30). Compared with TPE, TCZ treatment showed a trend towards lower mortality rate (14-day mortality rate: 10.0% vs. 16.7%, p=0.608; 28-day mortality rate:10.0% vs. 20.0%, p=0.480). Both treatments showed the potential to reduce the viral load and IL-6 levels, indicating their efficacy in managing the disease course. TCZ is a potential therapeutic option for SFTS as it modulates IL-6 levels and improves clinical outcomes.
7.Clinical practice guidelines for cervical cancer: an update of the Korean Society of Gynecologic Oncology Guidelines
Ji Geun YOO ; Sung Jong LEE ; Eun Ji NAM ; Jae Hong NO ; Jeong Yeol PARK ; Jae Yun SONG ; So-Jin SHIN ; Bo Seong YUN ; Sung Taek PARK ; San-Hui LEE ; Dong Hoon SUH ; Yong Beom KIM ; Keun Ho LEE
Journal of Gynecologic Oncology 2025;36(1):e70-
We describe the updated Korean Society of Gynecologic Oncology (KSGO) practice guideline for the management of cervical cancer, version 5.1. The KSGO announced the fifth version of its clinical practice guidelines for the management of cervical cancer in March 2024. The selection of the key questions and the systematic reviews were based on data available up to December 2022. Between 2023 and 2024, substantial findings from large-scale clinical trials and new advancements in cervical cancer research remarkably emerged. Therefore, based on the existing version 5.0, we updated the guidelines with newly accumulated clinical data and added 4 new key questions reflecting the latest insights in the field of cervical cancer. For each question, recommendation was formulated with corresponding level of evidence and grade of recommendation, all established through expert consensus.
8.Tocilizumab for Patients with Severe Fever with Thrombocytopenia Syndrome: Tocilizumab Observational SFTS Study-1
Jeong Rae YOO ; Misun KIM ; Myeong Jin KANG ; Sora KIM ; Keun Hwa LEE ; Sang Taek HEO
Yonsei Medical Journal 2025;66(5):321-327
There is no established treatment for severe fever with thrombocytopenia syndrome (SFTS). However, the potential role of tocilizumab (TCZ) in cytokine storm modulation warrants further investigation. In this study, we aimed to investigate the therapeutic potential of TCZ in adult patients with SFTS and provide valuable insights into the development of effective treatment strategies for this challenging infectious disease by assessing the impact of TCZ on cytokine dynamics and patient outcomes. This prospective longitudinal observational study included adult patients with SFTS at a teaching hospital in Korea between April 2013 and December 2023. Patients with SFTS and interleukin (IL)-6 levels ≥30 ng/mL received TCZ. The 14- and 28-day mortality rates were compared between the TCZ and therapeutic plasma exchange (TPE) groups during the study period. Among the total of 97 patients, the clinical characteristics showed no significant differences between the TCZ (n=10) and TPE groups (n=30). Compared with TPE, TCZ treatment showed a trend towards lower mortality rate (14-day mortality rate: 10.0% vs. 16.7%, p=0.608; 28-day mortality rate:10.0% vs. 20.0%, p=0.480). Both treatments showed the potential to reduce the viral load and IL-6 levels, indicating their efficacy in managing the disease course. TCZ is a potential therapeutic option for SFTS as it modulates IL-6 levels and improves clinical outcomes.
9.Tocilizumab for Patients with Severe Fever with Thrombocytopenia Syndrome: Tocilizumab Observational SFTS Study-1
Jeong Rae YOO ; Misun KIM ; Myeong Jin KANG ; Sora KIM ; Keun Hwa LEE ; Sang Taek HEO
Yonsei Medical Journal 2025;66(5):321-327
There is no established treatment for severe fever with thrombocytopenia syndrome (SFTS). However, the potential role of tocilizumab (TCZ) in cytokine storm modulation warrants further investigation. In this study, we aimed to investigate the therapeutic potential of TCZ in adult patients with SFTS and provide valuable insights into the development of effective treatment strategies for this challenging infectious disease by assessing the impact of TCZ on cytokine dynamics and patient outcomes. This prospective longitudinal observational study included adult patients with SFTS at a teaching hospital in Korea between April 2013 and December 2023. Patients with SFTS and interleukin (IL)-6 levels ≥30 ng/mL received TCZ. The 14- and 28-day mortality rates were compared between the TCZ and therapeutic plasma exchange (TPE) groups during the study period. Among the total of 97 patients, the clinical characteristics showed no significant differences between the TCZ (n=10) and TPE groups (n=30). Compared with TPE, TCZ treatment showed a trend towards lower mortality rate (14-day mortality rate: 10.0% vs. 16.7%, p=0.608; 28-day mortality rate:10.0% vs. 20.0%, p=0.480). Both treatments showed the potential to reduce the viral load and IL-6 levels, indicating their efficacy in managing the disease course. TCZ is a potential therapeutic option for SFTS as it modulates IL-6 levels and improves clinical outcomes.
10.Practice guidelines for managing extrahepatic biliary tract cancers
Hyung Sun KIM ; Mee Joo KANG ; Jingu KANG ; Kyubo KIM ; Bohyun KIM ; Seong-Hun KIM ; Soo Jin KIM ; Yong-Il KIM ; Joo Young KIM ; Jin Sil KIM ; Haeryoung KIM ; Hyo Jung KIM ; Ji Hae NAHM ; Won Suk PARK ; Eunkyu PARK ; Joo Kyung PARK ; Jin Myung PARK ; Byeong Jun SONG ; Yong Chan SHIN ; Keun Soo AHN ; Sang Myung WOO ; Jeong Il YU ; Changhoon YOO ; Kyoungbun LEE ; Dong Ho LEE ; Myung Ah LEE ; Seung Eun LEE ; Ik Jae LEE ; Huisong LEE ; Jung Ho IM ; Kee-Taek JANG ; Hye Young JANG ; Sun-Young JUN ; Hong Jae CHON ; Min Kyu JUNG ; Yong Eun CHUNG ; Jae Uk CHONG ; Eunae CHO ; Eui Kyu CHIE ; Sae Byeol CHOI ; Seo-Yeon CHOI ; Seong Ji CHOI ; Joon Young CHOI ; Hye-Jeong CHOI ; Seung-Mo HONG ; Ji Hyung HONG ; Tae Ho HONG ; Shin Hye HWANG ; In Gyu HWANG ; Joon Seong PARK
Annals of Hepato-Biliary-Pancreatic Surgery 2024;28(2):161-202
Background:
s/Aims: Reported incidence of extrahepatic bile duct cancer is higher in Asians than in Western populations. Korea, in particular, is one of the countries with the highest incidence rates of extrahepatic bile duct cancer in the world. Although research and innovative therapeutic modalities for extrahepatic bile duct cancer are emerging, clinical guidelines are currently unavailable in Korea. The Korean Society of Hepato-Biliary-Pancreatic Surgery in collaboration with related societies (Korean Pancreatic and Biliary Surgery Society, Korean Society of Abdominal Radiology, Korean Society of Medical Oncology, Korean Society of Radiation Oncology, Korean Society of Pathologists, and Korean Society of Nuclear Medicine) decided to establish clinical guideline for extrahepatic bile duct cancer in June 2021.
Methods:
Contents of the guidelines were developed through subgroup meetings for each key question and a preliminary draft was finalized through a Clinical Guidelines Committee workshop.
Results:
In November 2021, the finalized draft was presented for public scrutiny during a formal hearing.
Conclusions
The extrahepatic guideline committee believed that this guideline could be helpful in the treatment of patients.

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