Hyun Ki Kim

Abstract Purpose: Patient-derived organoids (PDO) of lung cancer has been recently introduced, reflecting the genomic landscape of lung cancer. However, clinical relevance of advanced lung adenocarcinoma organoids remains unknown. Here, we examined the ability of PDOs to predict clinical responses to targeted therapies in individual patients and to identify effective anticancer therapies for novel molecular targets. Experimental Design: Eighty-four organoids were established from patients with a

The purpose of this study was to analyze altered protein expression in cancer tissues and determine its relationship to prognosis in colorectal carcinomas. We performed proteomic expression analysis on 14 colorectal carcinomas and matched nontumorous colonic mucosa by 2-DE and MALDI-TOF-MS. Comparative analysis of the respective spot patterns on 2-DE showed 14 spots that were markedly changed in the colorectal carcinomas. Among them, selenium-binding protein 1 (SELENBP1) was markedly decreased i

The first full single-photon emission computed tomography (SPECT) imager to exploit eight compact high-intrinsic-resolution cadmium zinc telluride (CZT) detectors, called SemiSPECT, has been completed. Each detector consists of a CZT crystal and a customized application-specific integrated circuit (ASIC). The CZT crystal is a 2.7 cm x 2.7 cm x -0.2 cm slab with a continuous top electrode and a bottom electrode patterned into a 64 x 64 pixel array by photolithography. The ASIC is attached to the

BACKGROUND AND AIM: A subset of gastric cancers showed high microsatellite instability (MSI-H). The reported clinicopathological features of MSI-H gastric cancers are heterogeneous, and specific factors associated with prognosis have not been identified. METHODS: We analyzed the clinicopathological characteristics and prognostic factors in a large series (161 cases) of MSI-H gastric cancers, and compared the results to 315 cases of microsatellite-stable or low microsatellite-instable gastric can

In most sporadic gastric carcinomas, microsatellite instability (MSI) originates from inactivation of the hMLH1 gene by promoter hypermethylation. However, the methylation patterns of other genes and their consequences in high MSI (MSI-H) gastric carcinomas are not well characterized. To address the aberrant promoter methylation profiles of MSI-H gastric carcinomas, promoter methylation of six genes (hMLH1, p16(INK4A), E-cadherin, Rb, RASSF1A, and VHL) and CpG island methylator phenotype (CIMP)

PURPOSE: To measure the early therapeutic response to a novel apoptosis-inducing antibody, TRA-8, by using diffusion-weighted magnetic resonance (MR) imaging in a mouse breast cancer model. MATERIALS AND METHODS: Animal experiments had institutional animal care and use committee approval. Four groups of nude mice bearing luciferase-positive breast tumors (four to five mice with eight to 10 tumors per group) were injected intravenously with 0 mg (group 1), 0.025 mg (group 2), 0.100 mg (group 3),

Gastric cancer (GC) is a leading cause of death. We aim to establish a clinically relevant assay that encompasses recent molecular classifications and provides useful clinical information in a large cohort of GC patients. A consecutive series of 438 GC patients that underwent palliative chemotherapy between 2014 and 2015 were assessed using 10 GC panels: EBER in-situ hybridization, immunohistochemistry for mismatch repair (MMR) proteins (MLH1, PMS2, MSH2, and MSH6), receptor tyrosine kinases (RT

Combined hepatocellular-cholangiocarcinoma (cHC-CC) and some hepatocellular carcinomas (HCCs) express stemness-related markers, such as epithelial adhesion molecule (EpCAM) and keratin 19 (K19), the expression of which has been reported to be associated with more aggressive behavior therein than in HCCs without. Yes-associated protein 1 (YAP1), a potential oncogene, is known to promote stem cell proliferation. In the present study, YAP1 expression and clinicopathological features were evaluated

Early therapeutic efficacy of anti-death receptor 5 antibody (TRA-8) combined with gemcitabine was measured using diffusion-weighted magnetic resonance imaging (DWI) in an orthotopic pancreatic tumor model. Groups 1 to 4 of severe combined immunodeficient mice (n = 5-7 per group) bearing orthotopically implanted, luciferase-positive human pancreatic tumors (MIA PaCa-2) were subsequently (4-5 weeks thereafter) injected with saline (control), gemcitabine (120 mg/kg), TRA-8 (200 mug), or TRA-8 comb