Jin Hwa Chung

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PURPOSE   The metabolic and biochemical changes that occur during epileptogenesis remain to be determined. (18) F-Fluorodeoxyglucose positron emission tomography (FDG-PET) and proton magnetic resonance spectroscopy ((1) H MRS) are noninvasive techniques that provide indirect information on ongoing pathologic changes. We, therefore, utilized these methods to(More)
Imaging the pharmacodynamics of anti-cancer drugs may allow early assessment of anti-cancer effects. Increases in 3'-deoxy-3'-[(18)F]fluorothymidine ([(18)F]FLT) uptake early after thymidylate synthase inhibition (TS) inhibition, the so-called flare response, is considered to be largely due to an increase in binding sites for type-1 equilibrative nucleoside(More)
Bacterial lipopolysaccharide (LPS) activates Toll-like receptor 4 (TLR4) leading to the expression of inflammatory gene products. Src-family tyrosine kinases (STKs) are known to be activated by LPS in monocytes/macrophages. Therefore, we determined the role of STKs in TLR4 signaling pathways and target gene expression in macrophages. The activation of(More)
We determined whether [18F]fluorothymidine (FLT) positron emission tomography (PET) can detect early effects on tumor proliferation of JAC106, a new anti-tubulin agent. Inhibition of tubulin polymerization and [3H]colchicine binding were assessed in vitro. The effects of JAC106 on cytotoxicity, mitotic arrest, [18F]FLT uptake, and thymidine kinase 1 (TK1)(More)
AIM We aimed to investigate whether 3'-deoxy-3'-[(18)F]fluorothymidine ([(18)F]FLT) positron emission tomography (PET) can estimate thymidine kinase 1 (TK1) activity after thymidylate synthase (TS) inhibition by 5-fluorouracil (5-FU) in a mouse tumor model. MATERIALS AND METHODS Nude mice with HT29 tumors were injected with phosphate-buffered saline or(More)
Bevacizumab improves survival in patients with metastatic colorectal cancer (mCRC) under chemotherapy, but few predictive markers have been identified. To investigate chemosensitive single nucleotide polymorphisms (SNPs) of mCRC, we performed exome sequencing and RNA sequencing in 19 patients. A clinical association analysis was performed with the other 116(More)
BACKGROUND/PURPOSE Seborrheic keratoses (SKs) are common epidermal tumors in the white population over 40 years. The etiology of SKs is not well known; however, exposure to sunlight was suggested to play a role in the development of them. To our knowledge, no well-designed study has been undertaken in order to investigate the clinical characteristics of SKs(More)
TAS-102 is an orally administered anticancer agent composed of α,α,α-trifluorothymidine (FTD) and thymidine phosphorylase inhibitor (TPI). This study assessed 3′-deoxy-3′-[18F]fluorothymidine ([18F]FLT) uptake after TAS-102 administration. The human colorectal carcinoma cell lines HCT116, HT29, HCT8 and SW620 were exposed to FTD for 2 h, further incubated(More)
s Selection of Annals of Nuclear Medicine F-FDG uptake by rectal cancer is similar in mucinous and nonmucinous histological subtypes Dalton A. dos Anjos, Angelita Habr-Gama, Bruna B. Vailati, et al 126 Liu Qingyao (Translator), Lan Xiaoli (Reviser) Impact of patient age on the iodine/FDG “flip-flop” phenomenon in lung metastasis from thyroid cancer Takuro(More)
An efficient system for direct delivery of integral membrane proteins is successfully developed using a new biocompatible exosome-based platform. Fusogenic exosomes harboring viral fusogen, vascular stomatitis virus (VSV)-G protein, can fuse with and modify plasma membranes in a process called "membrane editing." This can facilitate the transfer of(More)