Publications by authors named "Seonyoung Kim"

Background: Muscle-invasive bladder cancer (MIBC) is a clinically aggressive and heterogeneous disease with variable treatment responses. Transcriptome-based classifications, such as the Chemoresistance-Motility (CrM) signature, are valuable for understanding therapeutic resistance, but their clinical use is often hindered by high cost and tissue requirements. This study explores an alternative, scalable approach using deep learning analysis of whole slide images (WSIs).

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Background: Mucinous adenocarcinoma (MuC), a colorectal cancer (CRC) subtype, exhibits distinct molecular features and poorer response to chemoradiotherapy than non-mucinous adenocarcinoma (NMuC). Conventional treatments often fail to address CRC heterogeneity, particularly in stage II disease. Therefore, improved biomarkers for risk stratification and personalised treatment are needed.

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Hutchinson-Gilford progeria syndrome (HGPS), an extremely rare progressive genetic disorder, is caused by a point mutation in LMNA that induces progerin production, which disrupts cellular function and triggers premature aging and mortality. Despite extensive efforts, HPGS remains incurable. We successfully implemented a strategy using RfxCas13d to selectively target progerin mRNA at specific junction regions, without unintended cleavage and reduce its expression.

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In the current forensic environment, short tandem repeat (STR) profiling originating from genomic differences is highly accurate and widely used to identify individuals. However, if the person of interest is a monozygotic (MZ) twin, his or her DNA profile is identical to that of his or her twin; thus, STR profiling cannot discriminate between them. Therefore, DNA methylation, which is known to have different patterns even in MZ twins, has attracted attention as a promising marker to differentiate MZ twins.

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Individuals with retinal degenerative diseases struggle to restore vision due to the inability to regenerate retinal cells. Unlike cold-blooded vertebrates, mammals lack Müller glia (MG)-mediated retinal regeneration, indicating the limited regenerative capacity of mammalian MG. Here, we identify prospero-related homeobox 1 (Prox1) as a key factor restricting this process.

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Colorectal cancer (CRC) is one of the most prevalent causes of cancer-related fatalities globally, and its development is closely associated with dietary and microbial factors. The aim of this study was to investigate the potential of ganjang, a traditional fermented soy sauce, in alleviating colitis-associated colorectal cancer (CAC) in a mouse model induced by azoxymethane/dextran sulfate sodium (AOM/DSS). The bacterial composition of ganjang samples from different regions primarily included spp.

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Background: Never-smoker lung adenocarcinoma (NSLA) exhibits distinct immunosuppressive profiles and a lower tumor mutation burden compared with lung adenocarcinoma in smokers. These correlate with poor responses to immune checkpoint inhibitors. In this study, we aimed to elucidate the tumor-immune microenvironment of NSLA without epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) alterations and identify novel therapeutic targets.

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All cellular transcripts initially have a tri-phosphate (PPP) group at the 5'-end, recognized as a pathogen-associated molecular pattern (PAMP) by a cell's innate immune system. The removal of 5'-PPP occurs to varying extents, causing immune imbalance. However, how cells manage this situation has not yet been documented.

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Pseudomyxoma peritonei (PMP), a rare condition characterized by mucinous ascites in the peritoneal cavity, often leads to a poor prognosis. However, omics profiling of this disease remains significantly underexplored. Here, we present single-cell transcriptomic profiling of five PMP cases to identify cell type-specific gene features associated with PMP pathogenesis.

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Cytomegalovirus (CMV)-induced anterior uveitis is linked to increased intraocular pressure, suggesting profibrotic changes in the eye's drainage system. Previous studies on the aqueous humor (AH) of patients with CMV uveitic glaucoma (UG) highlighted the activation of the liver X receptor (LXR) pathway, yet a potential that it has a role in increased intraocular pressure remained unelucidated. Herein, the LXR pathway's role in AH outflow in UG was explored.

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Urinary tract infections (UTIs) are highly recurrent and frequently caused by Uropathogenic (UPEC) strains that can be found in patient intestines. Seeding of the urinary tract from this intestinal reservoir likely contributes to UTI recurrence (rUTI) rates. Thus, understanding the factors that promote UPEC intestinal colonization is of critical importance to designing therapeutics to reduce rUTI incidence.

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Objective: Stigma influences perceptions of mental illness and novel diseases like coronavirus disease-2019 (COVID-19), often impeding healthcare access despite advancements in medical treatment. This study compares the stigma associated with COVID-19 and mental illness to identify factors that could help reduce stigma.

Methods: An online survey was conducted in May 2023 among 1,500 participants aged 19 to 65 in South Korea, using a panel from Embrain, an online survey service.

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This study evaluated the probiotic potential of lactic acid bacteria (LAB) isolated from fermented milk and soymilk products purchased from local markets. The LAB strains were assessed for acid and bile resistance, antibiotic resistance, and adhesion to human intestinal epithelial models. (JAMI_LB_02) and (JAMI_LB_05) showed the highest survival rates in artificial gastric and bile juices, at 87.

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Given the presence of highly repetitive genomic regions such as subtelomeric regions, understanding human genomic evolution remains challenging. Recently, long-read sequencing technology has facilitated the identification of complex genetic variants, including structural variants (SVs), at the single-nucleotide level. Here, we resolved SVs and their underlying DNA damage-repair mechanisms in subtelomeric regions, which are among the most uncharted genomic regions.

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Virus-induced trabeculitis is considered a significant cause of uveitic glaucoma, being marked by a sudden increase in intraocular pressure and relatively mild inflammation in the anterior chamber of the eye. In previous proteome analyses of aqueous humor (AH) derived from Cytomegalovirus (CMV) uveitic glaucoma patients, we observed the liver X receptor (LXR) pathway to be among the most prominently activated canonical pathways. In the present study, we explored the role of the LXR pathway in the etiology of glaucoma in association with ocular inflammation.

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is a medicinal plant known for its potential anti-inflammatory, antioxidant, anti-cancer, and antimicrobial benefits. The pharmacological effects of extract on hair loss have not yet been documented. This research sought to assess the inhibitory effects and mechanisms of action of water extract (RWE) in a mouse model of dihydrotestosterone (DHT)-induced alopecia.

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Article Synopsis
  • - Patients with lung adenocarcinoma who have never smoked and lack common driver mutations (like EGFR and ALK) have limited treatment options and generally worse outcomes with immunotherapies compared to smokers.
  • - This study analyzed tumor samples from 99 Korean nonsmoking lung adenocarcinoma patients, identifying four distinct molecular subgroups based on their proteogenomic profiles: proliferation, angiogenesis, immune, and metabolism, which were linked to varying clinical outcomes.
  • - The analysis highlights potential therapeutic targets and pathways, particularly indicating that genes and proteins in the proliferation subgroup might be targeted for treatments, while cytokines in the immune subgroup could enhance combination immunotherapy effectiveness.
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Article Synopsis
  • Scientists are working on a way to use a special virus called recombinant adenovirus (rAdV) to deliver genes for gene therapy.
  • However, using high doses of rAdV can cause problems because it might make the immune system attack the virus.
  • In this study, researchers created a new version of rAdV that includes a molecule called nc886, which helps reduce those immune reactions and allows the virus to work better without causing harm.
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The DMPTool NIH Data Management and Sharing Plan (DMSP) Templates Project was launched in response to the 2023 NIH Data Management and Sharing (DMS) Policy. This new policy introduced a more structured framework for DMS Plans, featuring six key elements, a departure from the 2003 NIH DMS policy. The project aimed to simplify the process for data librarians, research administrators, and researchers by providing a template with curated guidance, eliminating the need to navigate various policies and guidelines.

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The difluoromethyl group (CFH) serves as an essential bioisostere in drug discovery campaigns according to Lipinski's Rule of 5 due to its advantageous combination of lipophilicity and hydrogen bonding ability, thereby improving the ADME properties. However, despite the high prevalence and importance of vicinal hydrogen bond donors in pharmaceutical agents, a general synthetic method for doubly difluoromethylated compounds in the vicinal position is absent. Here we describe a copper-electrocatalyzed strategy that enables the vicinal bis(difluoromethylation) of alkenes.

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The aim of this study was to investigate the metabolic changes associated with the anti-obesity effects of fermented blackberry extracts in the liver tissues of high-fat-diet-fed mice using mass spectrometry-based metabolomics analysis. C57BL/6J mice were divided into eight groups: normal-diet-fed mice, high-fat-diet-fed mice, high-fat diet treated with blackberry extract, high-fat-diet mice treated with blackberry fermented by , and high-fat diet with blackberry fermented by . After 12 weeks, the high-fat-diet group exhibited a greater increase in liver weight compared to the control group, and among the groups, the group administered with blackberry fermented with showed the most pronounced reduction in liver weight.

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H3K4 methylation by Set1-COMPASS (complex of proteins associated with Set1) is a conserved histone modification. Although it is critical for gene regulation, the posttranslational modifications of this complex that affect its function are largely unexplored. This study showed that N-terminal acetylation of Set1-COMPASS proteins by N-terminal acetyltransferases (NATs) can modulate H3K4 methylation patterns.

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Inflammatory bowel disease (IBD), characterized by chronic inflammation of the gut, is caused by several factors. Among these factors, microbial factors are correlated with the gut microbiota, which produces short-chain fatty acids (SCFAs) via anaerobic fermentation. Fermented foods are known to regulate the gut microbiota composition.

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Article Synopsis
  • Increased fast food consumption among adolescents during COVID-19 school closures is linked to poor dietary and lifestyle choices, raising public health concerns.
  • A study involving 1,710 middle and high school students in Gwangju, South Korea found that factors like irregular meal patterns, decreased physical activity, and increased sedentary behavior contributed to this trend.
  • The findings emphasize the need for dietary interventions and guidelines to promote healthier eating habits among adolescents during times of disruption, like school closures.*
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Mortalin (encoded by HSPA9) is a mitochondrial chaperone often overexpressed in cancer through as-yet-unknown mechanisms. By searching different RNA-sequencing datasets, we found that ESRRA is a transcription factor highly correlated with HSPA9 in thyroid cancer, especially in follicular, but not C cell-originated, tumors. Consistent with this correlation, ESRRA depletion decreased mortalin expression only in follicular thyroid tumor cells.

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