title: Differential expression and regulation of Tdo2 during mouse decidualization.
abstract: Tryptophan 2,3-dioxygenase (Tdo2) is a rate-limiting enzyme which directs the conversion of tryptophan to kynurenine. The aim of this study was to examine the expression and regulation of Tdo2 in mouse uterus during decidualization. Tdo2 mRNA was mainly expressed in the decidua on days 6-8 of pregnancy. By real-time PCR, a high level of Tdo2 expression was observed in the uteri from days 6 to 8 of pregnancy, although Tdo2 expression was observed on days 1-8. Simultaneously, Tdo2 mRNA was also detected under in vivo and in vitro artificial decidualization. Estrogen, progesterone, and 8-bromoadenosine-cAMP could induce the expression of Tdo2 in the ovariectomized mouse uterus and uterine stromal cells. Tdo2 could regulate cell proliferation and stimulate the expression of decidual marker Dtprp in the uterine stromal cells and decidual cells. Overexpression of Tdo2 could upregulate the expression of Ahr, Cox2, and Vegf genes in uterine stromal cells, while Tdo2 inhibitor 680C91 could downregulate the expression of Cox2 and Vegf genes in uterine decidual cells. These data indicate that Tdo2 may play an important role during mouse decidualization and be regulated by estrogen, progesterone, and cAMP.
authors.affiliation: College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China.
authors.forename: Dang-Dang
authors.initials: DD
authors.lastname: Li
authors.forename: Ying-Jie
authors.initials: YJ
authors.lastname: Gao
authors.forename: Xue-Chao
authors.initials: XC
authors.lastname: Tian
authors.forename: Zhan-Qing
authors.initials: ZQ
authors.lastname: Yang
authors.forename: Hang
authors.initials: H
authors.lastname: Cao
authors.forename: Qiao-Ling
authors.initials: QL
authors.lastname: Zhang
authors.forename: Bin
authors.initials: B
authors.lastname: Guo
authors.forename: Zhan-Peng
authors.initials: ZP
authors.lastname: Yue
mesh_terms: D015124:8-Bromo Cyclic Adenosine Monophosphate / Q000494:pharmacology; D000818:Animals; D049109:Cell Proliferation; D051546:Cyclooxygenase 2 / Q000235:genetics; D003656:Decidua / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D015536:Down-Regulation / Q000187:drug effects; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D020869:Gene Expression Profiling; D018507:Gene Expression Regulation, Developmental; D017403:In Situ Hybridization; D007211:Indoles / Q000494:pharmacology; D008297:Male; D051379:Mice; D010052:Ovariectomy; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D011388:Prolactin / Q000031:analogs & derivatives / Q000235:genetics; D018336:Receptors, Aryl Hydrocarbon / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017154:Stromal Cells / Q000378:metabolism; D014366:Tryptophan Oxygenase / Q000037:antagonists & inhibitors / Q000235:genetics*; D014599:Uterus / Q000166:cytology / Q000378:metabolism; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics
chemical_list: C489796:Dtprp protein, mouse; D004967:Estrogens; D007211:Indoles; D018336:Receptors, Aryl Hydrocarbon; C093792:TDO inhibitor LM10; D042461:Vascular Endothelial Growth Factor A; D015124:8-Bromo Cyclic Adenosine Monophosphate; D011374:Progesterone; D011388:Prolactin; D014366:Tryptophan Oxygenase; C077623:Ptgs2 protein, mouse; D051546:Cyclooxygenase 2
keywords: female reproduction; mouse; pregnancy; uterine–embryo interaction; uterus