Biomaterial Database

Global comparison of radiation and chemotherapy dose-response curves with a test for interaction. 1993

M J Lindstrom, and K A Kunugi, and T J Kinsella

Department of Biostatistics, University of Wisconsin Medical School, Madison 53792.

In the analysis of the effects of radiation or drugs on clonogenic survival data of mammalian cells, it is often advantageous to compare entire dose-response curves generated under different experimental conditions rather than to conduct single-dose comparisons. We propose a two-stage method for the global comparison of such curves. The first stage consists of individual fits of a flexible model to the dose-response sequences. The second stage treats the fitted coefficients as data and analyzes them jointly using a multivariate analysis of variance. For dose-response models of the type commonly used in the analysis of clonogenic survival data, this method allows the definition of a statistical test for interaction among treatments. That is, a test that the combination of agents produces a dose-response curve which is not what would be expected if the agents were acting multiplicatively (additively in the log cell survival scale). Analyses of cell survival curves by this method for experiments on iododeoxyuridine-mediated radiosensitization and on chemosensitization of bleomycin cytotoxicity in a human bladder cancer cell line (647V) are presented.

UI	MeSH Term	Description	Entries
D007065	Idoxuridine	An analog of DEOXYURIDINE that inhibits viral DNA synthesis. The drug is used as an antiviral agent.	5-Iodo-2'-deoxyuridine,IUdR,Iododeoxyuridine,5-Iododeoxyuridine,Allergan 211,Herplex Liquifilm,Idoxuridine, 123I-Labeled,Idoxuridine, 125I-Labeled,Idoxuridine, 131I-Labeled,Idoxuridine, 3H-Labeled,Idoxuridine, Radical Ion (+1),Idoxuridine, Radical Ion (1-),Kerecide,NSC-39661,Oftan-IDU,SK&F-14287,Stoxil,123I-Labeled Idoxuridine,125I-Labeled Idoxuridine,131I-Labeled Idoxuridine,3H-Labeled Idoxuridine,5 Iodo 2' deoxyuridine,5 Iododeoxyuridine,Idoxuridine, 123I Labeled,Idoxuridine, 125I Labeled,Idoxuridine, 131I Labeled,Idoxuridine, 3H Labeled,Liquifilm, Herplex,NSC 39661,NSC39661,Oftan IDU,OftanIDU
D011838	Radiation-Sensitizing Agents	Drugs used to potentiate the effectiveness of radiation therapy in destroying unwanted cells.	Radiation Sensitizer,Radiosensitizing Agent,Radiosensitizing Agents,Agents, Radiation-Sensitizing,Radiation Sensitizers,Radiation Sensitizing Agents,Radiation-Sensitizing Drugs,Radiation-Sensitizing Effect,Radiation-Sensitizing Effects,Radiosensitizing Drugs,Radiosensitizing Effect,Radiosensitizing Effects,Agent, Radiosensitizing,Agents, Radiation Sensitizing,Agents, Radiosensitizing,Drugs, Radiation-Sensitizing,Drugs, Radiosensitizing,Effect, Radiation-Sensitizing,Effect, Radiosensitizing,Effects, Radiation-Sensitizing,Effects, Radiosensitizing,Radiation Sensitizing Drugs,Radiation Sensitizing Effect,Radiation Sensitizing Effects,Sensitizer, Radiation,Sensitizers, Radiation,Sensitizing Agents, Radiation
D001749	Urinary Bladder Neoplasms	Tumors or cancer of the URINARY BLADDER.	Bladder Cancer,Bladder Neoplasms,Cancer of Bladder,Bladder Tumors,Cancer of the Bladder,Malignant Tumor of Urinary Bladder,Neoplasms, Bladder,Urinary Bladder Cancer,Bladder Cancers,Bladder Neoplasm,Bladder Tumor,Cancer, Bladder,Cancer, Urinary Bladder,Neoplasm, Bladder,Neoplasm, Urinary Bladder,Tumor, Bladder,Tumors, Bladder,Urinary Bladder Neoplasm
D001761	Bleomycin	A complex of related glycopeptide antibiotics from Streptomyces verticillus consisting of bleomycin A2 and B2. It inhibits DNA metabolism and is used as an antineoplastic, especially for solid tumors.	BLEO-cell,Blanoxan,Blenoxane,Bleolem,Bleomicina,Bleomycin A(2),Bleomycin A2,Bleomycin B(2),Bleomycin B2,Bleomycin Sulfate,Bleomycins,Bleomycinum Mack,Bléomycine Bellon,BLEO cell,BLEOcell,Bellon, Bléomycine,Mack, Bleomycinum,Sulfate, Bleomycin
D002470	Cell Survival	The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.	Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D003131	Combined Modality Therapy	The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used.	Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004307	Dose-Response Relationship, Radiation	The relationship between the dose of administered radiation and the response of the organism or tissue to the radiation.	Dose Response Relationship, Radiation,Dose-Response Relationships, Radiation,Radiation Dose-Response Relationship,Radiation Dose-Response Relationships,Relationship, Radiation Dose-Response,Relationships, Radiation Dose-Response
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses