関連する実験動画

Updated: Aug 2, 2026

A Tissue Culture Model of Estrogen-producing Primary Bovine Granulosa Cells
05:36

A Tissue Culture Model of Estrogen-producing Primary Bovine Granulosa Cells

Published on: September 6, 2018

LHRHのような因子経由によるセルトリ・レイディグ細胞の通信

R M Sharpe, H M Fraser, I Cooper

    Nature
    |April 30, 1981
    PubMed
    まとめ

    セルトリ細胞は,男性生殖能力と精子生産に不可欠なレイディグ細胞機能を調節する,ルテイン化ホルモン放出ホルモン (LHRH) のような因子を産生する可能性があります. この新たに特定された因子は,LHRHと異なるが,似たような生物学的活性を共有している.

    さらに関連する動画

    Isolate Cell-Type-Specific RNAs from Snap-Frozen Heterogeneous Tissue Samples without Cell Sorting08:30

    Isolate Cell-Type-Specific RNAs from Snap-Frozen Heterogeneous Tissue Samples without Cell Sorting

    Published on: December 8, 2021

    Isolation of Targeted Hypothalamic Neurons for Studies of Hormonal, Metabolic, and Electrical Regulation09:29

    Isolation of Targeted Hypothalamic Neurons for Studies of Hormonal, Metabolic, and Electrical Regulation

    Published on: August 4, 2023

    関連する概念動画

    Intracellular Hormone Receptors01:08

    Intracellular Hormone Receptors

    Lipid-soluble hormones diffuse across the plasma and nuclear membrane of target cells to bind to their specific intracellular receptors. These receptors act as transcription factors that regulate gene expression and protein synthesis in the target cell
    Internal Receptors01:31

    Internal Receptors

    Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can cross the hydrophobic core of the plasma membrane and bind to internal, or intracellular, receptors that reside within the cell. Many mammalian steroid hormones use this mechanism of cell signaling, as does nitric oxide (NO) gas.
    Feedback Regulation of Calcium Concentration01:27

    Feedback Regulation of Calcium Concentration

    Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
    Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
    Target Cell Response to Hormones01:22

    Target Cell Response to Hormones

    Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
    Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
    Regulation of Hormone Secretion01:19

    Regulation of Hormone Secretion

    Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
    Humoral stimuli,...
    Testosterone: Functions and Regulation01:26

    Testosterone: Functions and Regulation

    The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...