Cancer stem cells and radiotherapy.

abstract：PURPOSE:To assess changes in mitochondrial morphology and mitophagy induced by simulated sunlight irradiation (SSI) and how these changes are modulated by mitochondrial activity and energy source. MATERIALS AND METHODS:Human malignant amelanotic melanoma A375 cells were pre-treated with either a mitochondrial activity...

journal_title：International journal of radiation biology

authors： Zanchetta LM,Garcia A,Lyng F,Walsh J,Murphy JE

更新日期：2011-05-01 00:00:00

abstract：PURPOSE:Effects of radiation on the differentiation of C2C12 myoblasts were studied using cell cultures in which the cells differentiated into either muscle cells or osteoblasts. MATERIALS AND METHODS:A mouse skeletal myoblast cell line, C2C12, was cultured and irradiated at confluence. Muscle differentiation was esti...

journal_title：International journal of radiation biology

authors： Ikeda S,Hachisu R,Yamaguchi A,Gao YH,Okano T

更新日期：2000-03-01 00:00:00

abstract：PURPOSE:To assess the potential of using the residual phosphorylation of histone H2AX (gammaH2AX) after irradiation as a marker of radiosensitivity in vitro. MATERIAL AND METHODS:Confluent cell cultures of FaDu and SKX human squamous cell carcinoma lines were irradiated with graded single doses. Twenty-four hours afte...

journal_title：International journal of radiation biology

authors： Menegakis A,Yaromina A,Eicheler W,Dörfler A,Beuthien-Baumann B,Thames HD,Baumann M,Krause M

更新日期：2009-11-01 00:00:00

abstract：:Purpose: This review discusses recent developments in our understanding of biological and physiological mechanisms underlying radiation cataractogenesis. The areas discussed include effects of low-dose exposures to the lens including potential relevance of non-targeted effects, the development of new personal-protecti...

journal_title：International journal of radiation biology

authors： Laskowski L,Williams D,Seymour C,Mothersill C

更新日期：2020-05-26 00:00:00

abstract：:The dose-rate effect has been the topic of extensive radiobiological studies and has important implications in radiation therapy and in the field of radiation protection. Three examples will be discussed: two in radiation therapy and one in protection. First, continuous low dose-rate interstitial brachytherapy may be ...

journal_title：International journal of radiation biology

authors： Hall EJ

更新日期：1991-03-01 00:00:00

abstract：:During previous studies on the relationship between thermosensitivity and intracellular pH (pHi) regulation in mammalian cells, we observed that the thermoresistant TR-4 cells appeared to be resistant to manipulations of the Na+/H+ antiport, one of the two primary membrane regulators of pHi. We hypothesized that this ...

journal_title：International journal of radiation biology

authors： Liu FF,Lee C,Li JH

更新日期：1996-10-01 00:00:00

abstract：PURPOSE:To investigate within the framework of a multilaboratory study the suitability of FISH chromosome painting to measure so-called stable translocations in peripheral lymphocytes of Mayak nuclear-industrial workers (from the Southern Urals) and their use for retrospective biodosimetry. MATERIALS AND METHODS:Chrom...

journal_title：International journal of radiation biology

authors： Bauchinger M,Braselmann H,Savage JR,Natarajan AT,Terzoudi GI,Pantelias GE,Darroudi F,Figgitt M,Griffin CS,Knehr S,Okladnikova ND,Santos S,Snigiryova G

更新日期：2001-03-01 00:00:00

abstract：PURPOSE:To describe the design and dosimetric characterization of a simple and economical small animal irradiator. MATERIALS AND METHODS:A high dose rate (HDR) (192)Ir brachytherapy source from a commercially available afterloader was used with a 1.3 cm thick tungsten collimator to provide sharp beam penumbra suitable...

journal_title：International journal of radiation biology

authors： Grams MP,Wilson ZC,Sio TT,Beltran CJ,Tryggestad EJ,Gupta SK,Blackwell CR,McCollough KP,Sarkaria JN,Furutani KM

更新日期：2014-10-01 00:00:00

abstract：PURPOSE:Melanoma is mainly treated by surgery and rarely with radiation because of the high radioresistance of this tumor. Nevertheless, radiotherapy is the preferred treatment modality for unresectable lesions and avoiding cosmetic disfigurement caused by surgical excision. This study investigated the therapeutic adva...

journal_title：International journal of radiation biology

authors： Kim SR,Kim EH

更新日期：2017-05-01 00:00:00

abstract：PURPOSE:The relationship between cellular telephone use and excretion of the melatonin metabolite 6-hydroxymelatonin sulfate (6-OHMS) was evaluated in two populations of male electric utility workers (Study 1, n=149; Study 2, n=77). MATERIALS AND METHODS:Participants collected urine samples and recorded cellular telep...

journal_title：International journal of radiation biology

authors： Burch JB,Reif JS,Noonan CW,Ichinose T,Bachand AM,Koleber TL,Yost MG

更新日期：2002-11-01 00:00:00

abstract：:Radiation-induced myocardial degeneration in the rat is preceded by changes in capillary structure and function, which may be a major factor in the pathogenesis of radiation-induced heart disease. In order to investigate the mechanism of capillary damage we studied endothelial cell proliferation in untreated control r...

journal_title：International journal of radiation biology

authors： Lauk S,Trott KR

更新日期：1990-05-01 00:00:00

abstract：PURPOSE:The fluorescent in situ hybridization (FISH) technique, which easily detects reciprocal translocations, is currently used to estimate doses in retrospective biological dosimetry, after suspected accidental overexposure to ionizing radiation (IR). This study of 42 cases aimed to verify the appropriateness of thi...

journal_title：International journal of radiation biology

authors： Grégoire E,Roy L,Buard V,Delbos M,Durand V,Martin-Bodiot C,Voisin P,Sorokine-Durm I,Vaurijoux A,Voisin P,Baldeyron C,Barquinero JF

更新日期：2018-03-01 00:00:00

abstract：PURPOSE:Ukrain, an alkaloid thiophosphoric acid derivative of Chelidonium majus L., has demonstrated a promising impact on chemotherapy in a variety of malignancies. The effects of the drug on cell survival, alteration of the cell cycle and induction of apoptosis were examined without and in combination with ionizing r...

journal_title：International journal of radiation biology

authors： Cordes N,Plasswilm L,Bamberg M,Rodemann HP

更新日期：2002-01-01 00:00:00

abstract：PURPOSE:To determine whether murine lymphoid cell lines can discriminate between high- and low-LET (linear energy transfer) radiation-induced DNA lesions. MATERIALS AND METHODS:Sensitivity to killing by DNA-incorporated 3H and 125I decays, accumulated during storage in the gas phase of a liquid nitrogen tank, was dete...

journal_title：International journal of radiation biology

authors： Radford IR

更新日期：2002-06-01 00:00:00

abstract：PURPOSE:To determine the involvement of c-Jun NH(2)-terminal kinase-1 (JNK1) and possibly of HSP27 in heat-induced apoptosis of human monoblastic leukaemia U937 cells. MATERIALS AND METHODS:Dominant negative JNK1 (APF), in which the phosphorylation sites Thr-Pro-Tyr were changed to Ala-Pro-Phe, was overexpressed in U9...

journal_title：International journal of radiation biology

authors： Enomoto A,Suzuki N,Liu C,Kang Y,Zhu J,Serizawa S,Matsumoto Y,Morita A,Ito M,Hosoi Y

更新日期：2001-08-01 00:00:00

abstract：:In this report, in situ hybridization with whole chromosome painting probes was used to paint radiation-induced micronuclei (MN) in three lymphoblastoid cells lines to investigate the frequency of radiation-induced MN. The results obtained for four different chromosomes showed that there was a significant deviation of...

journal_title：International journal of radiation biology

authors： Slavotinek A,Sauer-Nehls S,Braselmann H,Taylor GM,Nüsse M

更新日期：1996-10-01 00:00:00

abstract：PURPOSE:To resolve the difficulty in counting merged DNA damage foci in high-LET (linear energy transfer) ion-induced patterns. MATERIALS AND METHODS:The analysis of patterns of RIF (radiation-induced foci) produced by high-LET Fe and Ti ions were conducted by using a Monte Carlo model that combines the heavy ion trac...

journal_title：International journal of radiation biology

authors： Ponomarev AL,Huff J,Cucinotta FA

更新日期：2010-06-01 00:00:00

abstract：PURPOSE:Public concern about radiation protection of the environment and non-human species is increasing. The potential impact of chronic gamma radiation on the bacterial community in a rice paddy ecosystem was investigated. MATERIALS AND METHODS:Paddy field microcosm samples were continuously exposed at a dose rate o...

journal_title：International journal of radiation biology

authors： Ishii N,Fuma S,Tagami K,Honma-Takeda S,Shikano S

更新日期：2011-07-01 00:00:00

abstract：:Diploid elongated spermatids of mice were enriched by flow cytometry and cell sorting using a new type of sorter (Partec). The sorted abnormal spermatids were identified morphologically and by nuclear area integration. The radiation-induced increase in the frequency of diploid elongated spermatids was monitored with t...

journal_title：International journal of radiation biology

authors： Hacker-Klom U,Heiden T,Otto FJ,Mauro F,Göhde W

更新日期：1989-05-01 00:00:00

abstract：:Free radical formation in aqueous solutions of ubiquinone (coenzyme Qo) induced by ultrasound was studied by EPR and spin trapping with 3,5-dibromo-4-nitrosobenzene sulphonate. When aqueous solutions of ubiquinone were sonicated with 50-kHz ultrasound in the presence of argon or nitrogen, radicals formed by addition o...

journal_title：International journal of radiation biology

authors： Kondo T,Riesz P

更新日期：1996-01-01 00:00:00

abstract：PURPOSE:To give a state-of-the-art overview on the promise of three-dimensional (3-D) culture systems for anticancer drug development, with particular emphasis on multicellular tumor spheroids (MCTS). RESULTS AND CONCLUSIONS:Cell-based assays have become an integral component in many stages of routine anti-tumor drug ...

journal_title：International journal of radiation biology

authors： Friedrich J,Ebner R,Kunz-Schughart LA

更新日期：2007-11-01 00:00:00

abstract：PURPOSE:Primary fibroblasts are not suitable for in vitro macrocolony assay due to their inability to form distinct colonies. Here we present a modification of agarose overlay that yielded extensive improvement in their colony formation and assessment of radiosensitivity. MATERIALS AND METHODS:Macrocolony formation wa...

journal_title：International journal of radiation biology

authors： Chandna S,Dagur RS,Mathur A,Natarajan AT,Harms-Ringdahl M,Haghdoost S

更新日期：2014-05-01 00:00:00

abstract：PURPOSE:Radiotherapy of cancer carries a perceived risk of inducing secondary cancer and other damage due to dose delivered to normal tissue. While expectedly small, this risk must be carefully analysed for all modalities. Especially in the use of exotic particles like pions and antiprotons, which annihilate and produc...

journal_title：International journal of radiation biology

authors： Kovacevic S,Bassler N,Hartley O,Knudsen H,Vranjes S,Garaj-Vrhovac V,Holzscheiter M

更新日期：2009-12-01 00:00:00

abstract：PURPOSE:To examine the protective effects of histamine on intestinal damage produced by gamma-radiation. MATERIALS AND METHODS:56 mice were divided into 4 groups. Histamine and Histamine-10 Gy groups received a daily subcutaneous histamine injection (0.1 mg/kg) starting 20 hours before irradiation and continued until ...

journal_title：International journal of radiation biology

authors： Medina VA,Croci M,Mohamad NA,Massari N,Garbarino G,Cricco GP,Núñez MA,Martín GA,Crescenti EJ,Bergoc RM,Rivera ES

更新日期：2007-10-01 00:00:00

abstract：:It is well established from clinical, epidemiological and laboratory studies that specific human germ line mutation can predispose to spontaneously arising cancer. Some of the responsible genes have been characterized at the molecular level and evidence is rapidly accumulating on mechanistic aspects of the problem. A ...

journal_title：International journal of radiation biology

authors： Cox R

更新日期：1994-11-01 00:00:00

abstract：PURPOSE:The effect of extremely low frequency electromagnetic fields (ELF-EMF) on bacteria has attracted attention due to its potential for beneficial uses. This research aimed to determine the effect of ELF-EMF on bacterial membrane namely the membrane potential, surface potential, hydrophobicity, respiratory activity...

journal_title：International journal of radiation biology

authors： Oncul S,Cuce EM,Aksu B,Inhan Garip A

更新日期：2016-01-01 00:00:00

abstract：:Recently, it has been demonstrated that two different thermal resistant states found in Chinese hamster cells, one transient, associated with thermotolerance, and the other permanent, associated with the increased expression of the cognate member of the hsp 70 family, are characterized by faster recovery from heat-ind...

journal_title：International journal of radiation biology

authors： Laszlo A,Davidson T,Hu A,Landry J,Bedford J

更新日期：1993-05-01 00:00:00

abstract：PURPOSE:Following ionizing radiation exposure, intestinal crypt regeneration is possible but it is still not known if regenerating crypts give rise to differentiated functional epithelial cells on villi. The aim of this study was to demonstrate that irradiated progeny of enterocytic precursor cells are capable of proli...

journal_title：International journal of radiation biology

authors： Haton C,Lebrun F,Benderitter M,Griffiths NM

更新日期：2005-03-01 00:00:00

abstract：PURPOSE:To determine the efficacy of a caffeine derivative 1-methylxanthine (1-MTX) in increasing radiosensitivity of cancer cells and elucidate the underlying mechanisms in vitro. MATERIALS AND METHODS:RKO human colorectal cancer cells carrying wild type protein 53 kDa (p53) were incubated with 3 mM 1-MTX for 30 min,...

journal_title：International journal of radiation biology

authors： Youn H,Hee Kook Y,Oh ET,Jeong SY,Kim C,Kyung Choi E,Uk Lim B,Park HJ

更新日期：2009-02-01 00:00:00

abstract：PURPOSE:In radiation biology, rats are often irradiated, but the precise dose distributions are often lacking, particularly in areas that receive scatter radiation. We used a non-dedicated set of resources to calculate detailed dose distributions, including doses to peripheral organs well outside of the primary field, ...

journal_title：International journal of radiation biology

authors： Kirkby C,Ghasroddashti E,Kovalchuk A,Kolb B,Kovalchuk O

更新日期：2013-09-01 00:00:00