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Gene profiling of apoptosis induced by heat stress in U937 human lymphoma cells

ABSTRACT: Hyperthermia is widely used to treat patients with various cancers. 42.5˚C is well known as the inflection point of hyperthermia and generally up to 42˚C of hyperthermia is used in clinical cases combined with other therapies. Here, the effects of heat stress at 42 or 44˚C for 15 min on the gene expression in human lymphoma U937 cells were investigated using an Affymetrix GeneChip system. The cells were treated with heat stress (42 or 44°C for 15 min), followed by incubation for 0, 1, 3 or 6 h at 37°C. The percentage of DNA fragmentation was 8.4 ± 2.2 (mean ± SD) at 42°C for 6 h and 21.0 ± 2.0 at 44°C for 6 h. Of approximately 47,000 probe sets analyzed, many genes that were differentially expressed by a factor 2.0 or greater were identified in the cells treated with heat stress at 42 and 44°C.

ORGANISM(S): Homo sapiens

PROVIDER: GSE23405 | GEO | 2010/08/11

SECONDARY ACCESSION(S): PRJNA131055

REPOSITORIES: GEO

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Transcription profiling of apoptosis induced by heat stress in U937 human lymphoma cells

Project description:Hyperthermia is widely used to treat patients with various cancers. 42.5˚C is well known as the inflection point of hyperthermia and generally up to 42˚C of hyperthermia is used in clinical cases combined with other therapies. Here, the effects of heat stress at 42 or 44˚C for 15 min on the gene expression in human lymphoma U937 cells were investigated using an Affymetrix GeneChip system. The cells were treated with heat stress (42 or 44°C for 15 min), followed by incubation for 0, 1, 3 or 6 h at 37°C. The percentage of DNA fragmentation was 8.4 ± 2.2 (mean ± SD) at 42°C for 6 h and 21.0 ± 2.0 at 44°C for 6 h. Of approximately 47,000 probe sets analyzed, many genes that were differentially expressed by a factor 2.0 or greater were identified in the cells treated with heat stress at 42 and 44°C. U937 cells, a human lymphoma cell line, were treated with heat stress (42 or 44°C for 15 min), followed by incubation for 0, 1, 3 or 6 h at 37°C. Non-treated cells served as the control. Total RNA samples were prepared from the cells. Gene expression was analyzed by an Affymetrix GeneChip® system with a Human Genome U133-plus 2.0 array for analysis of over 47,000 transcripts. Sample preparation for array hybridization was carried out as described in the manufacturer’s instruction

2010-08-11 | E-GEOD-23405 | biostudies-arrayexpress

Gene profiling of the cell death induced by heat stress in HSC-3 human oral squamous carcinoma cells

Project description:Hyperthermia is widely used to treat patients with various cancers. The 42.5˚C is well known as inflection point of hyperthermia and generally up to 42˚C of hyperthermia is used in clinical case to combine with other therapy. Here, the effects of heat stress at 42 or 44˚C for 90 min on the gene expression in HSC-3 human oral squamous carcinoma cells were investigated using an Affymetrix GeneChip system. The cells were treated with heat stress (42 or 44°C for 90 min) and followed by incubation for 0, 6, or 12 h at 37°C. The percentage of cell death was 5.0 ± 1.5 (mean ± SD) at 42°C for 12 h and 17.4 ± 0.6 at 44°C for 12 h. Of approximately 47,000 probe sets analyzed, many genes that were differentially expressed by a factor 2.0 or greater were identified in the cells treated with heat stress at 42 and 44°C.

2010-10-20 | GSE24783 | GEO

Gene profiling of the cell death induced by heat stress in HSC-3 human oral squamous carcinoma cells

Project description:Hyperthermia is widely used to treat patients with various cancers. The 42.5ËC is well known as inflection point of hyperthermia and generally up to 42ËC of hyperthermia is used in clinical case to combine with other therapy. Here, the effects of heat stress at 42 or 44ËC for 90 min on the gene expression in HSC-3 human oral squamous carcinoma cells were investigated using an Affymetrix GeneChip system. The cells were treated with heat stress (42 or 44Â°C for 90 min) and followed by incubation for 0, 6, or 12 h at 37Â°C. The percentage of cell death was 5.0 Â± 1.5 (mean Â± SD) at 42Â°C for 12 h and 17.4 Â± 0.6 at 44Â°C for 12 h. Of approximately 47,000 probe sets analyzed, many genes that were differentially expressed by a factor 2.0 or greater were identified in the cells treated with heat stress at 42 and 44Â°C. HSC-3 human oral squamous carcinoma cells were treated with heat stress (42 or 44Â°C for 90 min) and followed by incubation for 0, 6, or 12 h at 37Â°C. Non-treated cells were served as control. Total RNA samples were prepared from the cells. Gene expression was analyzed by an Affymetrix GeneChipÂ® system with a Human Genome U133-plus 2.0 array for analysis of over 47,000 transcripts. Sample preparation for array hybridization was carried out as described in the manufacturerâs instructions.

2010-10-20 | E-GEOD-24783 | biostudies-arrayexpress

Identification of genes responsive to mild hyperthermia in human leukemia U937 cells

Project description:The rationale underlying hyperthermia is the fact that temperatures over 42.5˚C are highly cytotoxic to tumor cells. On the other hand, although mild hyperthermia at a range from 39 to 41˚C alone did not induce cytotoxicity in tumor cells, mild hyperthermia is reported to show a synergism with radiotherapy and anti-cancer drugs. Here, the effects of mild hyperthermia (41˚C for 30 min) on the gene expression in human lymphoma U937 cells were investigated using by an Affymetrix GeneChip system. Although the cells treated with the mild hyperthermia did not induce apoptosis, a significant increase in protein levels of heat shock proteins, Hsp40 and Hsp70, was observed following activation of heat shock factor-1. At 3 h post-treatment, 938 probe sets that were differentially expressed by >1.5-fold were identified. Keywords: mild hyperthermia, gene expression, Human lymphoma U937 cell

2008-01-03 | GSE10043 | GEO

Identification of genes responsive to hyperthermia in human leukemia U937 cells

Project description:Hyperthermia (41˚C <) is widely used to treat patients with various cancers. Here, the effects of hyperthermia (42˚C for 90 min) on the gene expression in human lymphoma U937 cells were investigated using an Affymetrix GeneChip system. The cells were treated with hyperthermia (42°C for 90 min) and followed by incubation for 0, 1, 3 or 6 h at 37°C. The percentage of DNA fragmentation was 7.5 ± 0.9 (mean ± SD), 10.1 ± 0.2, and 17.3 ± 2.3 at the incubation periods of 1, 3, and 6 h, respectively. Of approximately 47,000 probe sets analyzed, the hyperthermia down-regulated 4,214 probe sets and up-regulated 1,334 by a factor 2.0 or greater.

2008-11-11 | GSE13503 | GEO

Identification of genes responsive to mild hyperthermia in human skin normal fibroblast Hs68 cells

Project description:Hyperthermia is widely used to treat patients with various cancers. Here, the effects of heat stress at 41M-BM-0C for 30 min (mild hyperthermia) on the gene expression in Hs68 human skin normal fibroblast cells were investigated using an Affymetrix GeneChip system. The cells were treated with mild hyperthermia, followed by incubation for 0, 1, or 3 h at 37M-BM-0C. No cell death was observed in the mild hyperthermia-treated cells. On the other hand, many genes that were differentially expressed by a factor 1.5 or greater were identified in the cells treated with the mild hyperthermia. Hs68 human skin normal fibroblast cells were treated with heat stress (41M-BM-0C for 30 min), followed by incubation for 0, 1, or 3 h at 37M-BM-0C. Non-treated cells served as the control. Total RNA samples were prepared from the cells, and quality of the RNA was analyzed using a Bioanalyzer 2100. Gene expression was monitored by an Affymetrix GeneChipM-BM-. system with a Human Genome U133-plus 2.0 array. Sample preparation for array hybridization was carried out as described in the manufacturer's instructions.

2012-07-12 | E-GEOD-39177 | biostudies-arrayexpress

Identification of genes responsive to mild hyperthermia in human normal fibroblast OUMS-36 cells

Project description:Hyperthermia is widely used to treat patients with various cancers. Here, the effects of heat stress at 41M-BM-0C for 30 min (mild hyperthermia) on the gene expression in OUMS-36 human normal fibroblast cells were investigated using an Affymetrix GeneChip system. The cells were treated with mild hyperthermia, followed by incubation for 0, 1, or 3 h at 37M-BM-0C. No cell death was observed in the mild hyperthermia-treated cells. On the other hand, many genes that were differentially expressed by a factor 1.5 or greater were identified in the cells treated with the mild hyperthermia. OUMS-36 human normal fibroblast cells were treated with heat stress (41M-BM-0C for 30 min), followed by incubation for 0, 1, or 3 h at 37M-BM-0C. Non-treated cells served as the control. Total RNA samples were prepared from the cells, and quality of the RNA was analyzed using a Bioanalyzer 2100. Gene expression was monitored by an Affymetrix GeneChipM-BM-. system with a Human Genome U133-plus 2.0 array. Sample preparation for array hybridization was carried out as described in the manufacturer's instructions.

2012-07-12 | E-GEOD-39178 | biostudies-arrayexpress

Identification of genes responsive to mild hyperthermia in human cervical squamous cell carcinoma HeLa cells

Project description:Hyperthermia (HT) is widely used to treat patients with various cancers. In general, HT elicits a wide spectrum of stress responses such as induction of heat shock proteins, protein aggregation and cell death in mammalian cells. Although many biological processes are affected by HT, the overall responses to HT in mammalian cells remain unknown. The effects of heat stress at 41M-BM-0C for 30 min (mild hyperthermia) on the gene expression in human cervical squamous cell carcinoma HeLa cells were investigated using an Affymetrix GeneChip system. Human cervical squamous cell carcinoma HeLa cells were treated with heat stress (41M-BM-0C for 30 min) and followed by incubation for 0, 1, or 3 h at 37M-BM-0C. Non-treated cells were served as control. Total RNA samples were prepared from the cells, and quality of the RNA was analyzed using a Bioanalyzer 2100. Gene expression was monitored by an Affymetrix GeneChipM-BM-. system with a Human Genome U133-plus 2.0 array. Sample preparation for array hybridization was carried out as described in the manufacturerM-bM-^@M-^Ys instructions.

2013-01-24 | E-GEOD-43701 | biostudies-arrayexpress

Identification of genes responsive to mild hyperthermia in human oral squamous cell carcinoma HSC-3 cells

Project description:Hyperthermia (HT) is widely used to treat patients with various cancers. In general, HT elicits a wide spectrum of stress responses, such as induction of heat shock proteins, protein aggregation and cell death in mammalian cells. Although many biological processes are affected by HT, the overall responses to HT in mammalian cells remain unknown. The effects of heat stress at 41Â°C for 30 min (mild hyperthermia) on the gene expression in human oral squamous cell carcinoma HSC-3 cells were investigated using an Affymetrix GeneChip system. Human oral squamous cell carcinoma HSC-3 cells were treated with heat stress (41Â°C for 30 min), followed by incubation for 0, 1, or 3 h at 37Â°C. Non-treated cells served as control. Total RNA samples were prepared from the cells, and quality of the RNA was analyzed using a Bioanalyzer 2100. Gene expression was monitored by an Affymetrix GeneChipÂ® system with a Human Genome U133-Plus 2.0 array. Sample preparation for array hybridization was carried out as described in the manufacturer's instructions.

2013-01-30 | E-GEOD-43862 | biostudies-arrayexpress

Identification of genes responsive to mild hyperthermia in human oral squamous cell carcinoma HSC-3 cells

2013-01-30 | GSE43862 | GEO

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