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Optimizing radiotherapy with immune checkpoint blockade in hepatocellular carcinoma

World Journal of Gastroenterology 2019年第20期25卷 2416-2429页

作者： Changhoon Choi Gyu Sang Yoo Won Kyung Cho hee Chul park Department of Radiation Oncology Samsung Medical CenterSeoul 06351South Korea Department of Radiation Oncology Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351South Korea

Hepatocellular carcinoma (HCC) is the fifth most common cancer, and its incidence is rapidly increasing in North America and Western Europe as well as South-East Asia. Patients with advanced stage HCC have very poor outcomes;therefore, the discovery of new innovative approaches is urgently needed. Cancer immunotherapy has become a game-changer and revolutionized cancer treatment. A comprehensive understanding of tumor-immune interactions led to the development of immune checkpoint inhibitors (ICIs) as new therapeutic tools, which have been used with great success. Targeting immune checkpoint molecules such as programmed cell death-1 (PD-1) and cytotoxic T lymphocyteassociated protein-4 (CTLA-4) reinvigorates anti-tumor immunity by restoring exhausted T cells. Despite their effectiveness in several types of cancer, of the many immune suppressive mechanisms limit the efficacy of ICI monotherapy. Radiation therapy (RT) is an essential local treatment modality for a broad range of malignancies, and it is currently gaining extensive attention as a promising combination partner with ICIs because of its ability to trigger immunogenic cell death. The efficacy of combination approaches using RT and ICIs has been well documented in numerous preclinical and clinical studies on various types of cancers but not HCC. The application of ICIs has now expanded to HCC, and RT is recognized as a promising modality in HCC. This review will highlight the current roles of PD-1 and CTLA-4 therapies and their combination with RT in the treatment of cancers, including HCC. In addition, this review will discuss the future perspectives of the combination of ICIs and RT in HCC treatment.

关键词： Hepatocellular carcinoma Radiation therapy Immune checkpoint inhibitors Abscopal effect

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Artificial photosynthesis for high-value-added chemicals:Old material,new opportunity

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Carbon Energy 2022年第1期4卷 21-44页

作者： Sungsoon Kim Kwang hee Kim Cheoulwoo Oh Kan Zhang Jong Hyeok park Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoulRepublic of Korea Institute of Optoelectronics&Nanomaterials Nanjing University of Science and TechnologyNanjingChina

Solar energy utilization has drawn attention due to ever-increasing environmental and energy ***(PEC)and photocatalytic(PC)water splitting for hydrogen production,which is the most popular and well-established solar-to-chemical conversion process,has been studied thoroughly to date but is now facing limitations related to low conversion *** resolve this issue,research in PEC cells or photocatalysts has recently aimed to produce alternative value-added chemicals by modifying their redox reactions,which potentially enables high economic reward to compensate for the low ***,various kinds of redox reactions that decouple classic water splitting reactions to produce value-added chemicals via PEC and PC processes are *** coupling of CO_(2) reduction,O_(2) reduction and organic synthesis with either water oxidation or water reduction is comprehensively discussed from the perspective of basic fundamental and product selectivity in terms of the band structure of materials,cocatalyst design,and thermodynamics and kinetics of the *** the review,future challenges and opportunities are suggested with respect to the redesigned artificial synthesis,which might be an alternative development for the commercialization of PEC or PC value-added chemical production technologies in the near future.

关键词： artificial photosynthesis photocatalysts photoelectrochemical cells redox reactions value-added chemical production

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M1-polarized macrophage-derived cellular nanovesicle-coated lipid nanoparticles for enhanced cancer treatment through hybridization of gene therapy and cancer immunotherapy

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3169-3183页

作者： Ha Eun Shin Jun-Hyeok Han Seungyong Shin Ga-Hyun Bae Boram Son Tae-Hyung Kim hee Ho park Chun Gwon park Wooram park Department of Integrative Biotechnology Sungkyunkwan University(SKKU)SuwonGyeonggi 16419Republic of Korea Deparment of Inteligent Precision Healthcare Convergence SKKUSuwonGyeonggi 16419Republic of Korea Department of MetaBioHealth SKKU Institute for ConvergenceSKKUSuwonGyeonggi 16419Republic of Korea Department of Bioengineering Hanyang UniversitySeoul 04763Republic of Korea Department of Integrative Engineering Chung-Ang UniversitySeoul 06974Republic of Korea Department of Biomedical Engineering SKKUSuwonGyeonggi 16419Republic of Korea Korea Institute of Science and Technology(KIST) Seoul 02792Republic of Korea

Optimum genetic delivery for modulating target genes to diseased tissue is a major obstacle for profitable gene *** nanoparticles(LNPs),considered a prospective vehicle for nucleic acid delivery,have demonstrated efficacy in human use during the COVID-19 *** study introduces a novel biomaterial-based platform,M1-polarized macrophage-derived cellular nanovesicle-coated LNPs(M1-C-LNPs),specifically engineered for a combined gene-immunotherapy approach against solid *** dual-function system of M1-C-LNPs encapsulates Bcl2-targeting siRNA within LNPs and immune-modulating cytokines within M1 macrophage-derived cellular nanovesicles(M1-NVs),effectively facilitating apoptosis in cancer cells without impacting T and NK cells,which activate the intratumoral immune response to promote granule-mediating killing for solid tumor *** retention within tumor was observed upon intratumoral administration of M1-C-LNPs,owing to the presence of adhesion molecules on M1-NVs,thereby contributing to superior tumor growth *** findings represent a promising strategy for the development of targeted and effective nanoparticle-based cancer genetic-immunotherapy,with significant implications for advancing biomaterial use in cancer therapeutics.

关键词： Genetic-immunotherapy M1 macrophage-derived cellular nanovesicles Lipid nanoparticles(LNPs) Gene therapy siRNA Cancer immunotherapy Solid tumor Tumor microenvironment(TME)

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Investigation of prodromal features in metabolic syndrome based on transcriptome analysis

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Genes & Diseases 2023年第3期10卷 708-711页

作者： Sang-Min park Musun park Hyo-Jeong Ban Su-Jin Baek Soo Yeon Kim Siwoo Lee hee-Jeong Jin Korean Medicine(KM)Data Division Korea Institute of Oriental MedicineDaejeon 34054Republic of Korea College of Pharmacy Chungnam National UniversityDaejeon 34134Republic of Korea

Metabolic syndrome(MetS)is a complex condition that significantly increases the risk of several diseases,including heart disease and *** with MetS show both pro-inflammatory and pro-thrombotic states;however,the state... 详细信息

关键词： diseases Metabolic Patients

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Thermal-driven gigantic enhancement in critical current density of high-entropy alloy superconductors

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材料科学技术（英文版） 2024年第22期189卷 60-67页

作者： Jihyun Kim Soon-Gil Jung Yoonseok Han Jin hee Kim Jong-Soo Rhyee Sunmog Yeo Tuson park Department of Physics Sungkyunkwan UniversitySuwon 16419Republic of Korea Department of Physics Education Sunchon National UniversitySuncheon 57922Republic of Korea Department of Applied Physics and Institute of Natural Sciences Integrated Education Institute for Frontier Science and Technology(BK 21 Four)Kyung Hee UniversityYongin17104Republic of Korea Korea Multi-purpose Accelerator Complex Korea Atomic Energy Research InstituteGyeongjuGyeongbuk38180Republic of Korea Department of Physics Sungkyunkwan UniversitySuwon 16419Republic of Korea Center for Quantum Materials and Superconductivity(CQMS) Sungkyunkwan UniversitySuwon 16419Republic of Korea

The high-entropy alloy(HEA)superconductor,Ta1/6Nb2/6Hf1/6Zr1/6Ti1/6(Ta-Nb-Hf-Zr-Ti),is systematically studied to examine changes in superconducting critical properties,critical temperature(Tc),critical cur-rent density(Jc),and upper critical field(Hc2),concerning thermal treatment *** condi-tion affects Jc more significantly than Tc and Hc2,with a large improvement of flux pinning force density(Fp).The Jc of bare sample is reduced to 10 A cm-2 at an applied magnetic field of approximately 1.5 T,whereas the sample annealed at 550 ℃ for 12 h exhibits Jc＞100 kA cm-2 up to around 4 ***,the Vickers hardness(HVIT)of the Ta-Nb-Hf-Zr-Ti HEA superconductor notably increases from～384 to 528 HVIT following a 24-h annealing at 500 ℃.These results demonstrate that thermal annealing is a powerful process to optimize both the superconducting and mechanical properties of high-entropy alloy superconductors.

关键词： High-entropy alloy superconductor Ta-Nb-Hf-Zr-Ti Annealing Critical current density Hardness

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Diaphragm disease compared with cryptogenic multifocal ulcerous stenosing enteritis

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World Journal of Gastroenterology 2011年第23期17卷 2873-2876页

作者： sook hee Chung Yunju Jo Sang Ryol Ryu Sang Bong Ahn Byoung Kwan Son Seong Hwan Kim Young sook park Young Ok Hong Department of Internal Medicine Eulji University School of MedicineSeoul 139-711South Korea Department of Pathology Eulji University School of MedicineSeoul 139-711Korea

As the use of drugs such as nonsteroidal anti-inflammatory drugs (NSAIDs) increases,so too do gastrointestinal ulcers,bleeding,perforation and *** disease of the small intestine is formed by submucosal fibrosis and destruction of lamina muscularis due to chronic ulceration,which corresponds to the most severe stage of NSAID *** may lead to stricture of the small *** such ulcerations and strictures in the small intestine are multiple,differential diagnosis is between diaphragm disease and cryptogenic multifocal ulcerous stenosing enteritis (CMUSE),because the gross findings of diaphragm disease are similar to those of *** report a rare case of diaphragm disease caused by *** has been finally confirmed by capsule endoscopy and the origin of chronic obscure gastrointestinal bleeding was found to be multiple ulcers and strictures in the small *** operation,we diagnosed the patient with diaphragm disease rather than CMUSE.

关键词： Non-steroidal anti-inflammatory agents Enteritis Gastrointestinal hemorrhage Small intestine Capsule endoscopy

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Topology optimization of reactive material structures for penetrative projectiles

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Defence Technology（防务技术） 2022年第7期18卷 1205-1218页

作者： Shinyu Kim Saekyeol Kim Taekyun Kim Sangin Choi Tae hee Lee Jung Su park Sang-Hyun Jung Department of Automotive Engineering Hanyang University222 Wangsimni-roSeongdong-guSeoul04763Republic of Korea The 4th R&D Institute Agency for Defense Development35Yuseong P.O.BoxDaejeon34186Republic of Korea

Recently,reactive materials have been developed for penetrative projectiles to improve impact resistance and energy ***,the design of a reactive material structure,involving shape and size,is challenging because of difficulties such as high non-linearity of impact resistance,manufacturing limitations of reactive materials and high expenses of penetration *** this study,a design optimization methodology for the reactive material structure is developed based on the finite element analysis.A finite element model for penetration analysis is introduced to save the expenses of the *** resistance is assessed through the analysis,and result is calibrated by comparing with experimental *** on the model,topology optimization is introduced to determine shape of the *** design variables and constraints of the optimization are proposed considering the manufacturing limitations,and the optimal shape that can be manufactured by cold spraying is *** on the optimal shape,size optimization is introduced to determine the geometric dimensions of the *** a result,optimal design of the reactive material structure and steel case of the penetrative projectile,which maximizes the impact resistance,is *** the design process proposed in this study,reactive material structures can be designed considering not only mechanical performances but also manufacturing limitations,with reasonable time and cost.

关键词： Reactive material Penetrative projectile Topology optimization Manufacturing constraint Cold gas dynamic spray Additive manufacturing

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Polyurethane-based Actuators with Various Polyols

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Journal of Materials Science & Technology 2010年第8期26卷 763-768页

作者： Nam-Ju Jo Do-hee Lim Gyeong-Mi Bark Ho-Hwan Chun In-Won Lee Hyun park Department of Polymer Science and Engineering Pusan National University Advanced Ship Engineering Research Center Pusan National University

This study dealt with the electrostrictive responses of polyurethane （PU） actuators with different microphase separation structure, which was a promising candidate for a material used in polymer actuators. In order to construct PUs with different higher-order structure, PUs with various types of polyol were synthesized： poly（neopentyl glycol adipate）（PNAD）, poly（tetramethylene glycol）（PTMG）, and poly（dimethyl siloxnae）（PDMS）. Synthesized PU was characterized by Fourier transform-infrared （FT-IR） spectroscopy and gel per- meation chromatography （GPC）. Thermal analysis and mechanical properties of PU films were carried out with differential scanning calorimetry （DSC） and UTM （universal testing machine）, respectively. And PU actuator was formed in a type of monomorph, which was made by carbon black electrodes on the both surfaces of PU film by spin coating method. Actuation behavior was mainly influenced on microphase separation struc- ture and mechanical property of PU. In result, PU actuator with PNAD, polyester urethane, had the largest field-induced displacement.

关键词： Electroactive polymer Polyurethane actuator Polyol type Maxwell stress effect Electrostriction effect

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Low skeletal muscle mass is associated with non-alcoholic fatty liver disease in Korean adults： the Fifth Korea National Health and Nutrition Examination Survey

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Hepatobiliary & Pancreatic Diseases International 2016年第1期15卷 39-47页

作者： hee yeon kim chang wook kim chung-hwa park jong young choi kyungdo han anwar t merchant yong-moon park division of hepatology department of internal medicinecollege of medicinethe catholic university of korea222Banpo-daeroSeocho-guSeou1 06591Republic of Korea department of biostatistics college of medicinethe catholic university of korea222Banpo-daeroSeocho-guSeou1 06591Republic of Korea department of epidemiology and biostatistics arnold school of public healthuniversity of south carolinaColumbiaSC 29208USA epidemiology branch national institute of environmental health sciencesnational institutes of healthdepartment of health and human servicesResearch Triangle ParkNC 27709USA

BACKGROUND： Sarcopenia and non-alcoholic fatty liver dis- ease （NAFLD） share similar pathophysiological mechanisms, and the relationship between sarcopenia and NAFLD has been recently investigated. The study investigated whether low skel- etal muscle mass is differentially associated with NAFLD by gender in Korean adults. METHODS： We conducted a cross-sectional analysis of the data from the Fifth Korea National Health and Nutrition Examination Survey. The skeletal muscle index （SMI） was obtained by the appendicular skeletal muscle mass divided by the weight. NAFLD was defined as a fatty liver index （FLI）〉60 in the absence of other chronic liver disease. RESULTS： Among the included subjects, 18.3% （SE： 1.4%） in men and 7.0% （SE： 0.7%） in women were classified as having FLI-defined NAFLD. Most of the risk factors for FLI-defined NAFLD showed a significant negative correlation with the SMI in both genders. Multiple logistic regression analysis showed that low SMI was associated with FLI-defined NAFLD, inde- pendent of other metabolic and lifestyle parameters in both genders [males： odds ratio （OR）=1.35; 95% confidence inter- val （CI）： 1.17-1.54; females： OR=1.36; 95% CI： 1.18-1.55]. The magnitude of the association between FLI-defined NAFLD and low SMI was higher in middle aged to elderly males （OR-1.50; 95% CI： 1.22-1.84） than in males less than 45 years of age （OR=1.25; 95% CI： 1.02-1.52） and in premenopausal females （OR=l.50; 95% CI： 1.12-2.03） than in postmenopausal females （OR-1.36; 95% CI： 1.20-1.54）.CONCLUSIONS： Low SMI is associated with the risk of FLI- defined NAFLD independent of other well-known metabolic risk factors in both genders. This association may differ ac- cording to age group or menopausal status. Further studies are warranted to confirm this relationship.

关键词： Korea National Health and Nutrition Examination Survey non-alcoholic fatty liver disease sarcopenia skeletal muscle

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Intra-abdominal desmoid tumors mimicking gastrointestinal stromal tumors——8 cases: A case report

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World Journal of Gastroenterology 2019年第16期25卷 2010-2018页

作者： Jwa Hoon Kim Min-hee Ryu Young Soo park Hyun Jin Kim Hyojung park Yoon-Koo Kang Department of Oncology Asan Medical CenterUniversity of Ulsan College of Medicine Department of Pathology Asan Medical Center University of Ulsan College of Medicine Department of Radiology Asan Medical Center University of Ulsan College of Medicine

BACKGROUND Intra-abdominal desmoid tumors(DTs) can mimic recurrence or progression of gastrointestinal stromal tumors(GISTs). Differential diagnosis is important to avoid unnecessary or inappropriate *** SUMMARY All 8 patients experienced surgical resection of GIST, and median time to diagnosis of DT was 1.8 years after surgical resection. All sites of DT were in the peritoneum around the surgical sites of GIST. The following clinical suspicion coupled with radiological findings contributed to the suspicion of intraabdominal DTs:(1) Occurrence of a new single lesion in the peritoneum around the surgical sites of GIST;(2) uncontrolled lesion with imatinib while other lesions being controlled with imatinib;(3) well-defined ovoid shaped lesion with delayed or mild enhancement and absence of necrosis, hemorrhage, and cystic change on computed tomography; and(4) a lesion showing mild or no hypermetabolic activity on 18 fluorodeoxyglucose-positron emission tomography,contrary to initially hyperactive lesion of GIST. All DTs were surgically removed except for one unresectable DT and only one DT recurred at another site of peritoneum, which was also surgically *** Intra-abdominal DT should be a differential diagnosis for a new single lesion in patients with GIST.

关键词： Desmoid tumor Gastrointestinal stromal tumor Radiology Surgicalresection Imatinib mesylate Case report

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