関連する実験動画
Updated: Aug 16, 2026

10:39
Single Cell Measurements of Vacuolar Rupture Caused by Intracellular Pathogens
Published on: June 12, 2013
ウイルスによる内分泌機能の乱れ: 細胞機能の乱れは,ホメオスタシスの乱れと病気につながります
Nature
|January 19, 1984
まとめ
ウイルスは,細胞に損傷を与えることなく,ホルモン産生とグルコース調節を妨害することができます. この研究は,ウイルスが誘発する病気の新しいメカニズムを明らかにし,構造的損傷を引き起こすことなく細胞機能に影響を与えます.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- エンドクリノロジー エンドクリノロジー
- 細胞生物学 細胞生物学
背景:
- ウイルスに起因する病気は,しばしば直接的な細胞破壊または免疫反応の結果である.
- 細胞溶解なしの機能的干渉を通じて病気を引き起こすウイルスの役割は,あまり理解されていません.
研究 の 目的:
- ウイルスが細胞破壊を引き起こさずに正常な細胞機能を変化させ,細胞損傷や病気を引き起こすことができるかどうかを調査する.
- 特殊な内分泌細胞とホルモン合成に対する非細胞病原性ウイルスの影響を調査する.
主な方法:
- 比較的非細胞病性ウイルスモデルを使用した.
- ウイルスの複製と細胞の反応を観察するために,感染した特殊なホルモン産生細胞を感染させた.
- 感染した細胞と感染していない細胞のホルモン合成と調節を評価した.
主要な成果:
- 非細胞病原性ウイルスが,特殊な細胞のホルモン合成を妨害することが示された.
- 成長とグルコースの調節に不可欠なホルモンの産生の変化を示した.
- 感染した細胞は,ウイルスの複製と機能障害にもかかわらず,構造的に無傷のままであることを確認しました.
結論:
- ウイルスは,直接的な細胞損傷や溶解を引き起こすことなく,細胞機能,特にホルモン合成を変化させることで病気を誘発することができます.
- この発見は,ウイルスが誘発する病原性の理解を,直接的な細胞病原性効果を超えて拡張します.
- 機能障害が構造的傷害に先行するか,または構造的傷害とは独立して発生する病気の新しいメカニズムを強調します.
関連する概念動画
Humoral Immune Responses
Overview
Role of ER in the Secretory Pathway
Eukaryotic cells have a special pathway that enables communication between various intracellular membrane-bound compartments and also with the extracellular environment. This pathway is termed as the secretory pathway.
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Lysosomal Hydrolases
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
Homeostatic Imbalance
Homeostasis is the maintenance of a stable internal environment within the body, which is crucial for the proper functioning of cells, tissues, organs, and organ systems. The body has various control mechanisms that work together to regulate various physiological parameters such as temperature, blood pressure, pH balance, and fluid balance, to name a few. These control mechanisms are based on feedback loops that can be either positive or negative.
However, sometimes these feedback loops fail,...
However, sometimes these feedback loops fail,...
Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...

