Publications by authors named "Seung-Hyun Jung"

Tuspetinib (TUS) is a well-tolerated, once daily, oral kinase inhibitor in clinical development for treatment of AML. Nonclinical studies show that TUS targets key pro-survival kinases with IC50 values in the low nM range, including SYK, wildtype and mutant forms of FLT3, mutant but not wildtype forms of KIT, RSK2 and TAK1-TAB1 kinases, and indirectly suppresses expression of MCL1. Oral TUS markedly extended survival in subcutaneously and orthotopically inoculated xenograft models of FLT3 mutant human AML, was well tolerated, and delivered enhanced activity when combined with venetoclax or 5-azacytidine.

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We compared 15 Salmonella Enteritidis isolates collected in South Korea in 2023: 11 from chickens and 4 from humans. All isolates belonged to ST11, and they were divided into two clusters, rST3888 and rST1425. All four human isolates were colistin-resistant, and mcr-1 was identified in three isolates.

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Developing novel anti‑angiogenic agents with minimal toxicity is notably challenging for cancer therapeutics. The discovery and development of peptides, whether derived from natural sources or synthesized, has potential for developing anti‑angiogenic agents characterized by their ability to penetrate cancer cells, high specificity and low toxicity. The present study identified a ‑derived anticancer and anti‑angiogenesis marine‑derived peptide 06 (MP06).

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  • Vibrio vulnificus is a harmful bacterium linked to undercooked seafood and contaminated seawater, which can cause severe infections such as septicemia and wound infections.
  • In this study, researchers analyzed 15 clinical and 11 environmental isolates, discovering 20 sequence types, including eight that are newly identified.
  • The findings revealed that both clinical and environmental strains showed resistance to certain antibiotics, indicating a need for ongoing monitoring of antibiotic resistance in V. vulnificus, particularly in South Korea.
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  • - The activation of FGF and FGFR pathways can lead to cancer, specifically hepatocellular carcinoma (HCC), prompting the development of targeted therapies.
  • - Researchers created a new series of compounds, specifically imidazo[1',2':1,6]pyrido[2,3-d]pyrimidine, designed to inhibit FGFRs 1-4, with compound 7n showing the best effectiveness as an FGFR inhibitor.
  • - Compound 7n demonstrated strong activity against FGFR1, 2, and 4, had a suitable pharmacokinetic profile, and proved to be effective in reducing tumors in human liver cancer mouse models.
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  • An outbreak of Klebsiella spp. producing multiple carbapenemases was identified in a Korean hospital from July 2019 to August 2021, involving ten patients and an environmental isolate from a sink.
  • Whole-genome sequencing revealed that most isolates were closely related K. pneumoniae and K. variicola, sharing a plasmid that carries antibiotic resistance genes.
  • The study concluded that the spread was likely due to healthcare worker interactions and patient movement, highlighting the need for improved infection control measures to manage persistent pathogens.
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  • A phase II clinical trial was conducted to assess the effectiveness of imatinib in treating PDGFRA/B-negative hypereosinophilic syndromes (HES), with 32 patients receiving doses ranging from 100-400 mg daily.
  • The study found a haematological response rate of 46.9%, with 18.8% achieving a complete response, and the median time to this response was 1.5 months.
  • Genetic analysis revealed that while there were no differences in non-silent mutations between responders and non-responders, specific gene fusions were linked to sustained responses, suggesting imatinib could be a viable treatment alongside proper biomarkers.
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Primary myelofibrosis (PMF) is a myeloid proliferative neoplasm (MPN) characterized by bone marrow (BM) fibrosis. Pre-fibrotic PMF (pre-PMF) progresses to overt PMF. Megakaryocytes (MKs) play a primary role in PMF; however, the functions of MK subsets and those of other hematopoietic cells during PMF progression remain unclarified.

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is a major cause of foodborne disease and frequently causes human salmonellosis in South Korea. In this study, we investigated the genome diversity, antimicrobial resistance, and virulence of clinical isolates of from South Korea. We collected 42 subsp.

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Hepatocellular carcinoma (HCC) is the most common type of liver cancer and is responsible for 90% of cases. Approximately 30% of patients diagnosed with HCC are identified as displaying an aberrant expression of fibroblast growth factor 19 (FGF19)-fibroblast growth factor receptor 4 (FGFR4) as an oncogenic-driver pathway. Therefore, the control of the FGF19-FGFR4 signaling pathway with selective FGFR4 inhibitors can be a promising therapy for the treatment of HCC.

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Background: Drug-resistant tuberculosis (TB) is a major threat to global public health. Whole-genome sequencing (WGS) is a useful tool for species identification and drug resistance prediction, and many clinical laboratories are transitioning to WGS as a routine diagnostic tool. However, user-friendly and high-confidence automated bioinformatics tools are needed to rapidly identify M.

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INTS14/VWA9, a component of the integrator complex subunits, plays a pivotal role in regulating the fate of numerous nascent RNAs transcribed by RNA polymerase II, particularly in the biogenesis of small nuclear RNAs and enhancer RNAs. Despite its significance, a comprehensive mutation model for developmental research has been lacking. To address this gap, we aimed to investigate the expression patterns of during zebrafish embryonic development.

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This study aimed to identify somatic mutations in nontumor cells (NSMs) in normal prostate and benign prostatic hyperplasia (BPH) and to determine their relatedness to prostate cancer (PCA). From 22 PCA patients, two prostates were sampled for 3-dimensional mapping (50 normal, 46 BPH and 1 PCA samples), and 20 prostates were trio-sampled (two normal or BPH samples and one PCA sample) and analyzed by whole-genome sequencing. Normal and BPH tissues harbored several driver NSMs and copy number alterations (CNAs), including in FOXA1, but the variations exhibited low incidence, rare recurrence, and rare overlap with PCAs.

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The discovery of new highly effective anticancer drugs with few side effects is a challenge for drug development research. Natural or synthetic anticancer peptides (ACPs) represent a new generation of anticancer agents with high selectivity and specificity. The rapid emergence of chemoradiation-resistant lung cancer has necessitated the discovery of novel anticancer agents as alternatives to conventional therapeutics.

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Trastuzumab is used to treat breast cancer patients overexpressing human epidermal growth factor receptor 2, but resistance and toxicity limit its uses, leading to attention to trastuzumab combinations. Recently, the synergistic effect of trastuzumab and H9 extract (H9) combination against breast cancer has been reported. Because drug exposure determines its efficacy and toxicity, the question of whether H9 changes trastuzumab exposure in the body has been raised.

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Purpose: For precision medicine, exploration and monitoring of molecular biomarkers are essential. However, in advanced gastric cancer (GC) with visceral lesions, an invasive procedure cannot be performed repeatedly for the follow-up of molecular biomarkers.

Materials And Methods: To verify the clinical implication of serial liquid biopsies targeting circulating tumor DNA (ctDNA) on treatment response, we conducted targeted deep sequencing for serially collected ctDNA of 15 HER2-positive metastatic GC patients treated with anti-PD-1 inhibitor in combination with standard systemic treatment.

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Background: Pyrazinamide (PZA) is often used as an add-on agent in the treatment of multidrug-resistant tuberculosis, regardless of phenotypic drug susceptibility testing (pDST) results. However, evaluating the effectiveness of PZA is challenging because of its low pH activity, which can result in unreliable pDST results. This study aimed to investigate the genomic characteristics associated with PZA resistance that can be used to develop genotypic DST.

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Glioblastoma multiforme (GBM) is a fast-growing and aggressive type of brain cancer. Unlike normal brain cells, GBM cells exhibit epithelial-mesenchymal transition (EMT), which is a crucial biological process in embryonic development and cell metastasis, and are highly invasive. Copper reportedly plays a critical role in the progression of a variety of cancers, including brain, breast, and lung cancers.

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Actinic keratosis (AK) and cutaneous squamous cell carcinoma in situ (CIS) are two of the most common precursors of cutaneous squamous cell carcinoma (cSCC). However, the genomic landscape of AK/CIS and the drivers of cSCC progression remain to be elucidated. The aim of our study was to investigate the genomic alterations between AK/CIS and cSCC in terms of somatic mutations and copy number alterations (CNAs).

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The evaluation of retinal vascular structures is important for analyzing various ophthalmic diseases. Conventional trypsin digestion was used for separating retinal vasculatures in mouse, rat, and other animal models; however, the trypsin method alone is technically difficult to perform and has not been reported in zebrafish to date. In this study, we introduced a rapid and convenient method that allows the investigation of fine vessel structures at a cellular level in the relatively intact retinal vasculature of adult zebrafish.

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Both the tumor and tumor microenvironment (TME) are crucial for pathogenesis and chemotherapy resistance in multiple myeloma (MM). Bortezomib, commonly used for MM treatment, works on both MM and TME cells, but innate and acquired resistance easily develop. By single-cell RNA sequencing (scRNA-seq), we investigated bone marrow aspirates of 18 treatment-naïve MM patients who later received bortezomib-based treatments.

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Background And Aims: Proper measurement of expected risk is important for making rational decisions, and maladaptive decision making may underlie various psychiatric disorders. However, differentially expressed genetic profiling involved in this process is still largely unknown. A rodent version of the gambling task (rGT) has been developed to measure decision-making by adopting the same principle of Iowa Gambling Task in humans.

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Cephalotocin is a bioactivity-regulating peptide expressed in octopus (). The peptide sequence of cephalotocin is very similar to the peptide sequence of mammalian vasopressin, and cephalotocin has been proposed to mainly activate arginine vasopressin 1b receptor (Avpr1b) in the brain. However, the effects of cephalotocin on mammalian behavior have not been studied.

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