関連する実験動画
Updated: Feb 6, 2026

05:02
Mechanical Micronization of Lipoaspirates for Regenerative Therapy
Published on: March 15, 2019
8.2K
肺の細胞可塑性と再生メカニズム
Laure-Emmanuelle Zaragosi1,2, Isabelle Salwig3,2, Roxana-Maria Wasnick4,2
1Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur and Centre National de la Recherche Scientifique, Valbonne, France.
まとめ
成人肺
科学分野:
- 肺医学; 細胞生物学; 再生医療
背景:
- 成人肺は絶え間ない環境の脅威に直面しており、効率的な再生が必要である。
- 上皮幹細胞および前駆細胞は肺の修復に不可欠である。
- 細胞可塑性は修復を助けるが、変化すると慢性肺疾患を引き起こす可能性がある。
研究 の 目的:
- 肺上皮の再生と可塑性のメカニズムをレビューすること。
- これらのプロセスが肺の修復と疾患にどのように寄与するかを探求すること。
- 上皮可塑性を標的とする治療戦略について議論すること。
主な方法:
- 動物モデルとヒト肺の研究からの知見の統合。
- 単一細胞および空間的トランスクリプトミクスの最近の進歩のレビュー。
- 細胞の不均一性、前駆細胞の状態、および遷移中間体の分析。
主要な成果:
- 主要な幹/前駆細胞を特定した:基底細胞、肺胞I型細胞、その他。
- 細胞可塑性が修復と疾患の両方で二重の役割を果たすことを強調した。
- 細胞運命決定の保存および分岐メカニズムに関する洞察を明らかにした。
結論:
- 肺再生は幹細胞の活性と細胞の可塑性に依存する。
- 可塑性の調節不全と再生の低下は、IPFやCOPDなどの慢性肺疾患に寄与する。
- 上皮可塑性を標的とすることは、肺疾患の潜在的な治療法を提供する。
関連する概念動画
Plasticity
3.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
3.1K
Plasticizers
372
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
372
Plastic Behavior
580
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
580
Plastic Deformations
455
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
455
Plastic Deformations
470
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
470
Lung Capacity
56.4K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
56.4K

