関連する実験動画
Updated: May 8, 2026
12:23
Dissection and Culture of Commissural Neurons from Embryonic Spinal Cord
Published on: May 26, 2010
Nukは,哺乳類の中枢神経系の中枢神経軸突の経路発見を制御する
M Henkemeyer1, D Orioli, J T Henderson
1Programme in Molecular Biology and Cancer, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.
Cell
|July 12, 1996
まとめ
エフファミリー受容体NUKは,哺乳類の脳内の軸索の誘導に不可欠です. Nukの変異は,異常なアクソン移動を引き起こし,脳の領域間の接続を混乱させます.
科学分野:
- 神経科学は神経科学である.
- 分子生物学は分子生物学である.
- 遺伝学 遺伝学とは
背景:
- エフファミリー受容体チロシンキナーゼは,アクソン誘導とファシキュレーションに関与しています.
- 哺乳類の中枢神経系の発達におけるEph族のNukの特定の役割については,さらなる調査が必要である.
研究 の 目的:
- エフ族のエフ族の生物学的機能を明らかにする.
- アクソン誘導とニューラル回路の形成におけるNUKの役割を調査する.
主な方法:
- 2つのマウス生殖系変異の生成:タンパク質ヌルアレル (Nuk1) とヌクベータガール融合受容体アレル (Nuk(lacZ)).
- 変異したマウスの脳構造と軸索経路の分析.
主要な成果:
- ホモジゴス型Nuk1変異体の脳は,前頭部前部の後部経路を形成する軸索の異常な移動を示しています.
- Nuk1変異体のアクソンは脳床に誤って移動し,側頭葉の間の皮質ニューロンを接続できなくなります.
結論:
- Nukは,哺乳類の中枢神経系内の特定の軸索の経路発見において,重要かつユニークな役割を果たします.
- これらの発見は,適切な神経接続の確立におけるNukの重要性を強調しています.
さらに関連する動画
関連する概念動画
01:27Diencephalon: Thalamus and Information Relay
The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological states or needs.
01:16Spinal Cord: Cross-sectional Anatomy
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
01:11Direct Motor Pathways
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and the...
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and the...
01:22Indirect Motor Pathways
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...