底層膜の可逆性の向上とカルシウムイオン再分配は,超音波による皮膚経投与効率の向上を促進する
Yujie Zheng1, Xinxin Meng2, Enguang Zhang3
1Department of Dermatology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Baita West Road 16, Suzhou, Jiangsu, People's Republic of China; Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing, People's Republic of China.
International journal of pharmaceutics
|September 6, 2025
まとめ
超音波による薬物投与 (超音波療法) は,皮膚の構造と細胞の性質を逆転的に変化させることで,皮膚の浸透性を高めます. この研究は,皮膚経吸収の改善と潜在的な臨床応用のためのメカニズムを明らかにしています.
科学分野:
- 生物医学工学
- 皮膚科
- 薬理学について
背景:
- 超音波による皮膚経由薬剤投与 (音声解剖) は非侵襲的な薬剤投与を提供します.
- 臨床使用は,メカニズムとパラメータの不完全な理解によって制限されています.
- この研究は,超音波による薬物の吸収に影響を与える要因を明らかにしています.
研究 の 目的:
- 超音波で強化された皮膚経由の薬物投与のメカニズムを調査する.
- 皮膚の構造と細胞に対する生物学的効果を分析する.
- 臨床適用のための包括的な洞察を提供します.
主な方法:
- 薬物浸透をリアルタイムで可視化するための2光子顕微鏡
- 電子顕微鏡で,超音波による皮膚構造の変化を調べる.
- HaCaT細胞の免疫光,カルシウム探査,および機械的なストレッチテスト.
主要な成果:
- 超音波は逆転可能な表皮構造変化によって 薬の浸透を強めた.
- 基礎膜の変異により 薬の投与が容易になりました
- 超音波は細胞内カルシウム,細胞粘着,および細胞の機械的抵抗に影響しました.
結論:
- 超音波は皮膚構造の調節,カルシウムシグナル伝達,そして細胞の性質の変化を通して 薬の投与を促進します.
- 発見はリアルタイムで インビヴォの洞察を与え 逆戻り可能な効果を示しています
- この研究は,安全で効果的な臨床応用を支援しています.
さらに関連する動画
関連する概念動画
01:23Mechanisms of Drug Absorption: Paracellular, Transcellular, and Vesicular Transport
782
Drugs need to permeate cell membranes to reach their target sites after administration. Orally administered drugs must transcend intestinal epithelial membrane barriers to infiltrate the systemic circulation. Drugs with a molecular weight of less than 500 Daltons diffuse through gaps between neighboring cells, called paracellular pathways.
However, most drugs use the transcellular route, traversing directly through the cell membranes via two mechanisms: passive and active transport. Passive...
However, most drugs use the transcellular route, traversing directly through the cell membranes via two mechanisms: passive and active transport. Passive...
782
01:17Pore Transport and Ion-Pair Transport
633
Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
633
01:23Drug Absorption Mechanism: Passive Membrane Transport
4.9K
Passive transport is a method of drug absorption where small, lipid-soluble drugs can move across the cell membrane. This movement happens along the concentration gradient, which is a natural flow from higher to lower concentration areas. The speed at which the drug moves is directly related to its lipid–water partition coefficient. This means that the more a drug dissolves in lipids, the faster it diffuses or spreads throughout the body. It is important to note that most drugs are either...
4.9K
01:24Cellular Membranes and Drug Transport
910
Drugs must traverse multiple biological barriers, such as multi-layered skin, single-layered intestinal epithelium, and the plasma membrane, to reach their target sites within the body. The plasma membrane, a highly structured composite of phospholipids, carbohydrates, and proteins, is the cell's protective boundary, facilitating selective substance exchange.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
910
01:27Feedback Regulation of Calcium Concentration
3.5K
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...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.5K
01:17Passive Diffusion: Overview and Kinetics
707
Passive diffusion is a critical process that allows small lipophilic drugs to cross the cell membrane along a concentration gradient. This mechanism's efficiency depends on four primary factors: the membrane's surface area, the drug's lipid-water partition coefficient, the concentration gradient, and the membrane's thickness.
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
707