Molecular mechanism regulating expression of estrous behavior in ruminants
Project/Area Number |
16H05014
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Animal production science
|
Research Institution | Nagoya University |
Principal Investigator |
Ohkura Satoshi 名古屋大学, 生命農学研究科, 教授 (20263163)
|
Project Period (FY) |
2016-04-01 – 2020-03-31
|
Project Status |
Completed (Fiscal Year 2020)
|
Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
|
Keywords | 応用動物 / 行動学 / 獣医学 / 畜産学 / 神経科学 / ヤギ / エストロジェン / 発情行動 |
Outline of Final Research Achievements |
The present study aimed to elucidate the neural mechanisms controlling estrus behavior in ruminants using genetically modified goats that can conditionally knock out estrogen receptor (ER) expression, which plays a primary role in inducing estrus behavior. First, we constructed a model that induced estrus behavior by hormone treatment and found that the increase in the behavioral activity associated with estrus was a quantitative parameter to evaluate the estrus behavior in goats. Second, we identified the nucleotide sequence and deduced amino acid sequence of the goat ER gene mRNA, and optimized the goat genetic engineering technology to implement genome editing technology by “gene editing by electroporation of Cas9 protein (GEEP)” method in 1-cell stage embryo. Third, we developed a method to implant a microinjection cannula stereotaxically in the brain region where goat ER is highly expressed.
|
Academic Significance and Societal Importance of the Research Achievements |
本研究において確立した、発情に伴う行動量増加を指標とした発情行動の定量的評価系は、発情行動発現のタイミングを正確に測ることが可能となる点で、反芻動物の発情行動を制御する神経機構の解明に大きく寄与する実験モデル系となる。また、本研究により確立したヤギの遺伝子工学基盤(過排卵処置、卵管内受精卵(1細胞期胚)採取法、GEEP法によるゲノム編集胚の作出など)は、ヤギをモデルとしたゲノム編集技術の確立に寄与し、遺伝子改変技術の対象動物としてのヤギの有用性を飛躍的に高めることができる。
|
Report
(5 results)
Research Products
(42 results)
-
-
-
[Journal Article] Establishment of immortalised cell lines derived from female Shiba goat KNDy and GnRH neurones.2020
Author(s)
Suetomi Y, Tatebayashi R, Sonoda S, Munetomo A, Matsuyama S, Inoue N, Uenoyama Y, Takeuchi Y,Tsukamura H, Ohkura S, Matsuda F.
-
Journal Title
Neuroendocrinology
Volume: 32(6)
Issue: 6
Pages: 12857-12857
DOI
Related Report
Peer Reviewed
-
[Journal Article] Facilitatory and inhibitory role of central amylin administration in the regulation of the gonadotropin-releasing hormone pulse generator activity in goats2020
Author(s)
Kitagawa, Y., Sasaki, T., Suzumura, R., Morishima, A., Tatebayashi, R., Assadullah, Ieda, N., Morita, Y., Matsuyama, S., Inoue, N., Uenoyama, Y. Tsukamura, H. and Ohkura. S.
-
Journal Title
Neuroscience Letters
Volume: 736
Pages: 135276-135276
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
[Journal Article] Peripheral administration of SB223412, a selective neurokinin-3 receptor antagonist, suppresses pulsatile luteinizing hormone secretion by acting on the gonadotropin-releasing hormone pulse generator in estrogen-treated ovariectomized female goats.2020
Author(s)
Sasaki T, Sonoda T, Tatebayashi R, Kitagawa Y, Oishi S, Yamamoto K, Fujii N, Inoue N, Uenoyama Y, Tsukamura H, Maeda KI, Matsuda F, Morita Y, Matsuyama S, Ohkura S.
-
Journal Title
J Reprod Dev
Volume: -
Issue: 4
Pages: 351-357
DOI
NAID
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
[Journal Article] Immunohistochemical characterization of the arcuate kisspeptin/neurokinin B/dynorphin (KNDy) and preoptic kisspeptin neuronal populations in the hypothalamus during the estrous cycle in heifers.2016
Author(s)
Hassaneen, A.S.A., Naniwa, Y., Suetomi, Y., Matsuyama, S., Kimura, K., Ieda, N., Inoue, N., Uenoyama, Y., Tsukamura, H., Maeda, K.-I., Matsuda, F. and Ohkura, S.
-
Journal Title
Journal of Reproduction and Development
Volume: 62
Issue: 5
Pages: 471-477
DOI
NAID
Related Report
Peer Reviewed / Open Access
-
[Journal Article] Molecular and Epigenetic Mechanism Regulating Hypothalamic Kiss1 Gene Expression in Mammals.2016
Author(s)
Uenoyama Y, Tomikawa J, Inoue N, Goto T, Minabe S, Ieda N, Nakamura S, Watanabe Y, Ikegami K, Matsuda F, Ohkura S, Maeda KI, Tsukamura H.
-
Journal Title
Neuroendocrinology
Volume: 印刷中
Issue: 6
Pages: 640-649
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
[Presentation] The role of calcitonin receptor signaling in the regulation of GnRH pulse generator activity in goats2019
Author(s)
Kitagawa, Y., Sasaki, T., Morishima, A., Tatebayashi, R., Morita, Y., Matsuyama, S., Inoue, N., Uenoyama, Y., Tsukamura, H., Ohkura, S.
Organizer
日本畜産学会第125回大会
Related Report
-
-
-
-
-
-
-
-
[Presentation] A neurokinin 3 receptor-selective agonist, senktide, stimulates pulsatile luteinizing hormone secretion in lactating cattle.2017
Author(s)
Nakamura, S., Wakabayashi, Y., Yamamura, T., Ohkura, S. and Matsuyama, S.
Organizer
The 4th World Congress on Reproductive Biology
Related Report
Int'l Joint Research
-
-
[Presentation] Establishment of immortalized GnRH neuronal cell lines derived from the cattle brain.2017
Author(s)
Ozaki, R., Uenoyama, Y., Suetomi, Y., Matsuyama, S., Kimura, K., Ieda, N., Inoue, N., Tsukamura, H., Ohkura, S. and Matsuda, F.
Organizer
The 4th World Congress on Reproductive Biology
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-