Abstract:
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 5-FU (16.7 or 50 mg/kg). Twenty-four hours later, 2-hour dynamic images were acquired after injection of [(18)F]FLT. In another group of mice with HT29 cells, static PET images were obtained 110 min after [(18)F]FLT injection. RESULTS:Kinetic parameters related to [(18)F]FLT retention increased significantly, whereas the de-phosphorylation of [(18)F]FLT monophosphate decreased significantly. The standardized uptake value (SUVmean) of HT29 tumors correlated significantly with the net influx constant and the distribution volume for phosphorylated [(18)F]FLT. There was a significant correlation between the tumor SUVmean and TK1 activity. CONCLUSION:SUVmean at 110-120 min after [(18)F]FLT, can quantitatively evaluate kinetic parameters and TK1 activity after TS inhibition.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Hong IK,Kim SY,Chung JH,Lee SJ,Oh SJ,Lee SJ,Oh J,Ryu JS,Kim TW,Kim DY,Moon DHsubject
Has Abstractpub_date
2014-02-01 00:00:00pages
759-66issue
2eissn
0250-7005issn
1791-7530pii
34/2/759journal_volume
34pub_type
杂志文章abstract:BACKGROUND:Chronic lymphocytic leukemia (CLL) is characterized by a clonal accumulation of neoplastic lymphocytes, indicating disruption of apoptosis. PATIENTS AND METHODS:Differential methylation hybridization analysis was performed to identify novel target genes silenced by CpG island methylation in patients with CL...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.10998
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abstract::The expression of epidermal growth factor (EGF) and its receptor (EGF-R) was examined immunohistochemically in 60 primary and 26 metastatic lesions of pancreatic carcinoma. EGF was stained mainly in the cytoplasm of tumor cells, and EGF-R was stained mainly on the surface of cells. The expression rates of EGF and EGF-...
journal_title:Anticancer research
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doi:
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
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journal_title:Anticancer research
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journal_title:Anticancer research
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doi:
更新日期:2016-08-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
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更新日期:2018-02-01 00:00:00
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journal_title:Anticancer research
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journal_title:Anticancer research
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Anticancer research
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11397
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11246
更新日期:2016-12-01 00:00:00
abstract::African-American women with breast cancer consistently show a shortened survival when compared with Caucasians with breast cancer, however it is not clear whether this is due to socioeconomic factors or to racial differences in tumor biology. Cyclin D1 overexpression has been demonstrated in 60-80% of female breast ca...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2004-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12768
更新日期:2018-08-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2008-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
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journal_title:Anticancer research
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND/AIM:Fluorescence-guided surgery (FGS) of cancer is an emerging technology. We have previously shown the importance of resecting both the tumor and the tumor microenvironment (TME) for curative FGS. We also previously developed a syngeneic model using the mouse lymphoma cell line EL-4, expressing red fluoresc...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.10988
更新日期:2016-09-01 00:00:00
abstract::Surgery remains the mainstay of treatment for breast cancer, including complete or partial mastectomy and lumpectomy. Breast reconstruction has gained popularity mainly due to its tremendous impact on the psychological status of the patients. Autologous fat grafting is a well-established method used in cosmetic surger...
journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:10.21873/anticanres.12112
更新日期:2017-12-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Tyrosine kinase inhibitors (TKIs) directed against epidermal growth factor receptor (EGFR) are important in the treatment of non-small cell lung cancer (NSCLC), especially those harboring EGFR mutations. But little is known regarding the clinical value of serum tumor marker levels measured prior to treatment...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12018
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Solar ultraviolet-B (UVB) and vitamin D have been found inversely correlated with cancer incidence, mortality, and survival rates in many studies. MATERIALS AND METHODS:In this work, two sets of cancer data were used: age-adjusted cancer incidence and mortality rates in 2002 for 21 Western developed countri...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
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