title: Gene expression profiling in rat liver treated with compounds inducing phospholipidosis.
abstract: We have constructed a large-scale transcriptome database of rat liver treated with various drugs. In an effort to identify a biomarker for diagnosis of hepatic phospholipidosis, we extracted 78 probe sets of rat hepatic genes from data of 5 drugs, amiodarone, amitriptyline, clomipramine, imipramine, and ketoconazole, which actually induced this phenotype. Principal component analysis (PCA) using these probes clearly separated dose- and time-dependent clusters of treated groups from their controls. Moreover, 6 drugs (chloramphenicol, chlorpromazine, gentamicin, perhexiline, promethazine, and tamoxifen), which were reported to cause phospholipidosis but judged as negative by histopathological examination, were designated as positive by PCA using these probe sets. Eight drugs (carbon tetrachloride, coumarin, tetracycline, metformin, hydroxyzine, diltiazem, 2-bromoethylamine, and ethionamide), which showed phospholipidosis-like vacuolar formation in the histopathology, could be distinguished from the typical drugs causing phospholipidosis. Moreover, the possible induction of phospholipidosis was predictable by the expression of these genes 24 h after single administration in some of the drugs. We conclude that these identified 78 probe sets could be useful for diagnosis of phospholipidosis, and that toxicogenomics would be a promising approach for prediction of this type of toxicity.
authors: Development Research Center, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Yodogawa-ku, Osaka, 532-8686, Japan.
authors: Mitsuhiro
authors: M
authors: Hirode
authors: Atsushi
authors: A
authors: Ono
authors: Toshikazu
authors: T
authors: Miyagishima
authors: Taku
authors: T
authors: Nagao
authors: Yasuo
authors: Y
authors: Ohno
authors: Tetsuro
authors: T
authors: Urushidani
mesh_terms: D000818:Animals; D030541:Databases, Genetic; D004305:Dose-Response Relationship, Drug; D064420:Drug-Related Side Effects and Adverse Reactions; D020869:Gene Expression Profiling / Q000379:methods*; D005786:Gene Expression Regulation / Q000187:drug effects*; D008099:Liver / Q000187:drug effects* / Q000378:metabolism; D008297:Male; D004364:Pharmaceutical Preparations / Q000008:administration & dosage; D010641:Phenotype; D010743:Phospholipids / Q000378:metabolism*; D025341:Principal Component Analysis; D051381:Rats; D017207:Rats, Sprague-Dawley; D013997:Time Factors; D043922:Toxicogenetics
chemical_list: D004364:Pharmaceutical Preparations; D010743:Phospholipids