Significance of nitroimidazole compounds and hypoxia‐inducible factor‐1 for imaging tumor hypoxia

S Kizaka‐Kondoh, H Konse‐Nagasawa - Cancer science, 2009 - Wiley Online Library
A tumor‐specific microenvironment is characterized by hypoxia, in which oxygen tension is
considerably lower than in normal tissues. The hypoxic status of various solid tumors has …

The HIF-1-active microenvironment: an environmental target for cancer therapy

S Kizaka-Kondoh, S Tanaka, H Harada… - Advanced drug delivery …, 2009 - Elsevier
Solid tumors possess unique microenvironments that are exposed to chronic hypoxic
conditions, so-called tumor hypoxia. Although more than half a century has passed since it …

The Akt/mTOR pathway assures the synthesis of HIF-1α protein in a glucose-and reoxygenation-dependent manner in irradiated tumors

H Harada, S Itasaka, S Kizaka-Kondoh… - Journal of Biological …, 2009 - ASBMB
Transcriptional activity of HIF-1 (hypoxia-inducible factor-1) has been reported to be up-
regulated in solid tumors after ionizing radiation; however, the molecular mechanism …

Real-time imaging of HIF-1α stabilization and degradation

E Moroz, S Carlin, K Dyomina, S Burke, HT Thaler… - PloS one, 2009 - journals.plos.org
HIF-1α is overexpressed in many human cancers compared to normal tissues due to the
interaction of a multiplicity of factors and pathways that reflect specific genetic alterations …

Selective killing of hypoxia-inducible factor-1–active cells improves survival in a mouse model of invasive and metastatic pancreatic cancer

S Kizaka-Kondoh, S Itasaka, L Zeng, S Tanaka… - Clinical Cancer …, 2009 - AACR
Purpose: Pancreatic cancer is characterized by intratumoral hypoxia, early and aggressive
local invasion, and metastatic potential. Hypoxia-inducible factor-1 (HIF-1) is the major …

Treatment regimen determines whether an HIF-1 inhibitor enhances or inhibits the effect of radiation therapy

H Harada, S Itasaka, Y Zhu, L Zeng, X Xie… - British journal of …, 2009 - nature.com
Abstract Hypoxia-inducible factor-1 (HIF-1) has been reported to promote tumour
radioresistance; therefore, it is recognised as an excellent target during radiation therapy …

Imaging of HIF-1-active tumor hypoxia using a protein effectively delivered to and specifically stabilized in HIF-1-active tumor cells

T Kudo, M Ueda, Y Kuge, T Mukai… - Journal of Nuclear …, 2009 - Soc Nuclear Med
Hypoxia-inducible factor-1 (HIF-1) plays an important role in malignant tumor progression
and in the development of resistance to radiotherapy. We designed a novel fusion protein …

Enhanced percolation and gene expression in tumor hypoxia by PEGylated polyplex micelles

M Han, M Oba, N Nishiyama, MR Kano… - Molecular Therapy, 2009 - cell.com
In regard to gene vectors for cancer gene therapy, their percolation into the tumor tissue
should be essential for successful outcome. Here, we studied the tumor penetrability of …

Usefulness of HIF-1 imaging for determining optimal timing of combining bevacizumab and radiotherapy

G Ou, S Itasaka, L Zeng, K Shibuya, J Yi… - International Journal of …, 2009 - Elsevier
PURPOSE: To study the relationship between the hypoxia-inducible factor-1 (HIF-1) activity
level after bevacizumab treatment and the antitumor effects of radiation to determine the …

Imaging and targeting of the hypoxia-inducible factor 1-active microenvironment

S Kizaka-Kondoh, S Tanaka… - Journal of toxicologic …, 2009 - jstage.jst.go.jp
Human solid tumors contain hypoxic regions that have considerably lower oxygen tension
than normal tissues. They are refractory to radiotherapy and anticancer chemotherapy …