Publications by authors named "Chang-Lim Hyun"

Purpose: The study aimed to investigate the recruiting of T lymphocytes including IL-7Rα CX3CR1 effector memory (EM) CD8 T cells and α4β7 integrin tagged T cells to inflamed intestinal mucosa.

Methods: Whole blood and mucosal tissues of intestine were collected from 40 children with or without inflammatory bowel disease (IBD). T cell surface staining and immunohistochemistry were done with several antibodies in peripheral blood mononuclear cells (PBMCs) and intestinal mucosa, respectively.

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Background: Butin is a naturally occurring compound with a wide range of medicinal properties, including anti-inflammatory, anti-arthritic, and antioxidant properties. Particulate matter 2.5 (PM) and ultraviolet B (UVB) radiation contribute to skin cell damage via the induction of oxidative stress.

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Objective: This study aimed to evaluate the diagnostic performance and procedural characteristics of fluoroscopy-guided percutaneous transthoracic pleural forceps biopsy (PTPFB) in patients with exudative pleural effusion.

Materials And Methods: Patients with exudative pleural effusion who underwent PTPFB between May 1, 2014, and February 28, 2023, were included in this retrospective study. The interval between percutaneous catheter drainage (PCD) and PTPFB, number of biopsies, procedural time, and procedure-related complications were evaluated.

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Article Synopsis
  • TLR13 is a special protein that helps keep our intestines healthy by recognizing harmful germs and helping the body defend against them.
  • Without TLR13, mice showed signs of serious stomach problems and were more likely to develop colon cancer.
  • The study found that TLR13 is important for balancing good and bad germs in our intestines and preventing diseases like colitis and cancer.
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  • Particulate matter 2.5 (PM) can harm your skin by causing aging and inflammation.
  • Hyperoside, a compound found in some plants, helps protect skin cells from damage caused by PM.
  • The study showed that hyperoside can improve skin cell growth and reduce stress and aging effects caused by exposure to harmful pollutants.
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Background/aim: Melanoma is a prevalent malignant tumor that arises from melanocytes. The treatment of malignant melanoma has become challenging due to the development of drug resistance. It is, therefore, imperative to identify novel therapeutic drug candidates for controlling malignant melanoma.

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Purpose: We investigated the role of CD8T cells as host immune factors in pediatric patients with gastritis.

Methods: Gastric mucosal tissue and blood samples were collected from 39 children, including 11 children with infection and 28 children as controls. Anti-CD8 and anti-T-bet antibodies were used for immunohistochemistry of the gastric mucosa.

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Background: To investigate the predictive capability of a new parameter, the distance between the fibromuscular capsule and the tumor as measured using a prostate biopsy core (referred to as "distance to the tumor" [DTT]), for the presence of extracapsular extension (ECE).

Materials And Methods: We analyzed specimens obtained from 246 patients diagnosed with prostate cancer. All patients underwent prebiopsy, prostate magnetic resonance imaging (MRI), and subsequent prostatectomy.

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Air pollution is an emerging cause of mortality, affecting nearly 5 million people each year. Exposure to diesel exhaust fine particulate matter (PM) aggravates respiratory and skin conditions. However, its impact on the protective immunity of the skin remains poorly understood.

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Renal angiomyolipomas (AMLs) are typically solid tumors, but there have been few reports of a rare cystic variant of AML. AML with epithelial cysts, where the epithelial cyst has a cuboidal epithelial lining, account for the majority of them. Next, epithelioid AML (EAML) with cystic changes due to hemorrhage and necrosis, which is composed of epithelioid cells with abundant eosinophilic cytoplasm, have also been reported.

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Background: Ephrin receptor-A1 (EPHA1) participates in various developmental processes by engaging in cell adhesion, migration, and tissue boundary formation. EPHA1 is also associated with cancer progression and poor prognosis. However, the results of individual studies were inconsistent.

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Lgr5 has been identified as a marker of the stem/progenitor cells in the murine ovary and oviduct by lineage tracing. However, little is known regarding LGR5 expression or its functional significance in human ovary tissues. Here, using RNA in situ hybridization and/or immunohistochemistry, we thoroughly investigated LGR5 expression in normal human ovaries, fallopian tubes and various ovarian tumors.

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Background: Recent studies have shown that nicotinamide adenosine dinucleotide phosphate oxidase 4 (NOX4) is related to cancer development, proliferation, invasion, epithelial-to-mesenchymal transition, and metastasis. The prognostic value of NOX4 expression although has been reported in various cancers, it remains unclear as several studies have reported conflicting results. Therefore, the purpose of this study was to systematically investigate the prognostic value of NOX4 expression in cancer patients.

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Background: CXC chemokine receptor 3 (CXCR3) plays a critical role in tumorigenesis, and CXCR3 expression is associated with prognosis in many cancers. Recently, CXCR3 expression is recognized as a potential prognostic factor for patients with gastric cancer. In this study, we analyzed the prognostic significance of CXCR3 expression in gastric cancer.

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Diffuse alveolar hemorrhage (DAH) is a life-threatening syndrome caused by various etiologies. DAH has rarely been reported to be associated with metastatic angiosarcoma. However, due to the rarity of complications, it may not be well-recognized by most clinicians.

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  • A study looked at a protein called CD9 to see how it affects cancer progression and patient survival.
  • They analyzed data from 17 studies with over 3,400 cancer patients and found that higher CD9 levels were linked to better survival rates.
  • The results suggest that checking CD9 levels could help doctors understand how well a cancer patient might do over time.
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  • SMOC2 is a secreted protein linked to cancer progression and was found to have higher expression levels in gastric cancer (GC) compared to normal tissue, indicating its potential role in the disease's development.
  • In a study involving over 700 gastric cancer specimens, SMOC2 expression was significantly correlated with various clinical features and was positively associated with better survival rates for patients.
  • SMOC2 may act as an independent prognostic marker for gastric cancer, alongside factors like tumor stage and venous invasion, highlighting its importance in assessing patient outcomes.
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Endosalpingiosis is a condition that causes the non-neoplastic proliferation of ectopic tubal epithelium. Florid cystic endosalpingiosis is an atypical subtype that is very rarely reported. It presents as a mass-like feature and therefore needs to be differentiated from tumorous conditions.

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Background: Hepatoma-derived growth factor (HDGF) promotes cancer progression and metastasis by interacting with vascular endothelial growth factor, thereby inducing epithelial-to-mesenchymal transition and angiogenesis. Recent studies have correlated increased HDGF levels with poor prognosis in various malignancies, including lung cancer. This meta-analysis systematically assessed the prognostic significance of HDGF expression in patients with non-small cell lung cancer (NSCLC).

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Background: Programmed death-ligand 1 (PD-L1) is one of the immune checkpoint proteins, and plays an important role in the progression and microenvironment of cancer. PD-L1 expression has been associated with poor survival in many cancers. Several studies have also shown an association between PD-L1 expression and the prognosis of patients with thymic epithelial tumors (TETs).

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  • * Despite initial medical interventions, including ERCP and antibiotics, her condition worsened, leading to the discovery of scrub typhus as the underlying cause when specific tests returned positive results.
  • * Notably, this case is significant because it represents the first reported instance of scrub typhus presenting as acute cholangitis, highlighting the need to consider rare causes in endemic areas.
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