title: Effects of 3-D clino-rotation on gene expression in human fibroblast cells.
abstract: Continuous variation in the direction of the gravity vector leads to various cellular responses including modulation of gene expression. Complementary DNA (cDNA) array analyses are available to observe the variation of gene expression under different conditions. In this study, expression levels of 588 representative genes were compared using the Atlas human cDNA expression array in human fibroblast cells with and without 3-dimensional (3-D) clinostat. Five upregulated and 8 downregulated genes were detected. Among these genes, upregulation of XRCC1, and downregulation of ERB-B2 and p21(Cip1/Waf1) were confirmed by RT-PCR. These results suggested that the gene expression levels of XRCC1, ERB-B2 and p21(Cip1/Waf1) were modulated by vector-averaged microgravity induced by 3-D clinostat in human fibroblast cells. Our findings may be a basis for the biological study of 3-D culture systems.
authors: Department of Environmental Biochemistry, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.
authors: Yoshiko
authors: Y
authors: Arase
authors: Jun
authors: J
authors: Nomura
authors: Shigeru
authors: S
authors: Sugaya
authors: Katsuo
authors: K
authors: Sugita
authors: Kazuko
authors: K
authors: Kita
authors: Nobuo
authors: N
authors: Suzuki
mesh_terms: D018929:Cell Culture Techniques / Q000295:instrumentation / Q000379:methods; D002478:Cells, Cultured; D005333:Fetus; D005347:Fibroblasts / Q000378:metabolism*; D020869:Gene Expression Profiling / Q000379:methods; D018507:Gene Expression Regulation, Developmental / Q000502:physiology*; D006801:Humans; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012399:Rotation