Production of Calcium Maintenance Factor Stanniocalcin-1 (STC1) by the Equine Endometrium During the Early Pregnant Period
スポンサーリンク
概要
- 論文の詳細を見る
A factor responsible for progression to pregnancy establishment in the mare has not been definitively characterized. To identify factors possibly involved in the establishment of equine pregnancy, the endometrium was collected from day 13 (day 0=day of ovulation) cyclic and day 13, 19 and 25 pregnant animals. From initial subtractive hybridization studies, a calcium regulating factor, Stanniocalcin-1 (STC1) mRNA, was found as a candidate molecule expressed uniquely in the pregnant endometrium. Endometrial expression of STC1 mRNA was noted on day 19 and was markedly increased in the day 25 gravid endometrium. STC1 protein was found in the extracts of day 25 gravid endometrium and immunochemically localized in the uterine glands. In addition, STC1 protein was detected in uterine flushing media collected from day 25 pregnant mares. High concentrations of estradiol-17β (E 2) were detected in day 25 conceptuses. E2 levels were much higher in the gravid endometrium than in other regions, whereas progesterone levels did not differ among the samples from different endometrial regions. Expression of STC1 mRNA, however, was not significantly upregulated in cultured endometrial explants treated with various concentrations of E2 (0.01-100 ng/ml) with or without 10 ng/ml progesterone. These results indicate that an increase in STC1 expression appears to coincide with capsule disappearance in the conceptus, and suggest that STC1 from the uterine glands likely plays a role in conceptus development during the pregnancy establishment period in the mare.
著者
-
IMAKAWA Kazuhiko
Laboratory of Animal Breeding, Faculty of Agriculture, The University of Tokyo
-
NAGAOKA Kentaro
Laboratory of Animal Breeding, Faculty of Agriculture, The University of Tokyo
-
NAMBO Yasuo
Hidaka Training Research Center
-
MATSUI Motozumi
Laboratory of Theriogenology, Department of Veterinary Clinical Science, Graduate School of Veterina
-
KIKUCHI Masato
Laboratory of Animal Breeding, Faculty of Agriculture, The University of Tokyo
-
NAKANO Yasuko
Laboratory of Animal Breeding, Faculty of Agriculture, The University of Tokyo
-
HANEDA Shingo
Laboratory of Theriogenology, Obihiro University of Agriculture and Veterinary Medicine
-
MIYAKE Yoichi
Laboratory of Theriogenology, Obihiro University of Agriculture and Veterinary Medicine
-
MACLEOD James
Gluck Equine Center, Department of Veterinary Science, University of Kentucky
関連論文
- DNAアレイによる着床過程に関与する新規遺伝子群の探索
- Production of Calcium Maintenance Factor Stanniocalcin-1 (STC1) by the Equine Endometrium During the Early Pregnant Period
- シバヤギにおけるインターフェロン・タウの発現
- シバヤギにおけるプロスタグランジンF2αの繰返し投与による不完全性周期の誘起
- Temporal Expression of Type I Interferon Receptor in the Peri-Implantation Ovine Extra-Embryonic Membranes : Demonstration that Human IFNα Can Bind to This Receptor
- Regulation of Interferon-τ Gene Expression and the Maternal Recognition of Pregnancy
- Analysis of Possible Silencer Elements of Ovine Interferon-τ Gene
- Effects of PMA and Transcription Factors on Ovine Interferon-τ Transactivation in Various Cell Lines
- Co-Expression of Transforming Growth Factor β and Interferon τ During Peri-Implantation Period in the Ewe
- Physiological Roles of Prolactin in the Adrenocortical Response to Acute Restraint Stress
- Direct Effects of Prolactin on Adrenal Steroidogenesis in Male Rats
- Direct Effects of Prolactin on Adrenal Steroid Release in Male Hatano High-Avoidance (HAA) Rats May be Mediated Through Janus Kinase 2 (Jak2) Activity
- シバヤギの妊娠期に見られる血漿アミノ酸濃度の数理学的特徴づけ
- ウマの卵胞発育過程におけるインヒビン/アクチビンサブユニット,アロマターゼおよび3β-ヒデロキシステロイド脱水素酵素の発現
- Theriogenology: Secretion of inhibin during the estrous cycle in the female Asian elephant (Elephas maximus)
- Immunolocalization of Steroidogenic Enzymes in Equine Fetal Adrenal Glands During Mid-Late Gestation
- Immunolocalization of Inhibin/Activin Subunits in Equine Fetal Adrenal Glands during Mid Gestation
- Change in Circulating Follicle-Stimulating Hormone, Luteinizing Hormone, Immunoreactive Inhibin, Progesterone, Testosterone and Estradiol-17β in Fillies from Birth to 6 Months of Age
- Biological Significance of Follicular Fluid Discharged into the Abdominal Cavity during Ovulation in Mares
- EFFECTS OF SUPPLEMENTATION OF THE MATURATION MEDIA WITH INSULIN ON IN VITRO MATURATION AND IN VITRO FERTILIZATION OF BOVINE OOCYTES
- Intestinal Gene Expression in TNBS Treated Mice Using GeneChip and Subtractive cDNA Analysis : Implications for Crohn's Disease(Molecular and Cell Biology)
- Temporal Changes in Concentrations of Branched-Chain Amino Acids in Plasma on Healthy Mares and Foals from Birth to 24 Weeks of Age
- A Surge-Like Increase in Luteinizing Hormone Preceding Musth in a Captive Bull African Elephant (Loxodonta africana)
- A Thoroughbred Showing Development Disorder in the Pudendal Cleavage due to Chromosomal Mosaicism
- Applying the Light Control Method to Yearlings
- Establishing a Method of Using Light Control to Induce Ovulation during Early Transitional Period in Mare of Hokkaido
- Inhibin Pro-αC as the Marker of Testicular Function in the Stallion
- Prostaglandin F_ -Induced Functional Regression of the Corpus Luteum and Apoptosis in Rodents
- シバヤギにおけるインターフェロン・タウの発現
- Production of Calcium Maintenance Factor Stanniocalcin-1 (STC1) by the Equine Endometrium During the Early Pregnant Period
- Post-Natal Dynamic Changes in Circulating Follicle-Stimulating Hormone, Luteinizing Hormone, Immunoreactive Inhibin, Progesterone, Testosterone and Estradiol-17β in Thoroughbred Colts until 6 Months of Age
- Annual Changes in Day-length, Temperature, and Circulating Reproductive Hormones in Thoroughbred Stallions and Geldings