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Mammalian cell membrane

Molecular classification
Other, Composed of many molecules, including specific protein classes (e.g., receptors, channels, transporters), but the membrane itself is not a single molecular family
01

Overview

The mammalian cell membrane, or plasma membrane, is a dynamic lipid bilayer embedded with a diverse array of proteins, carbohydrates, and cholesterol. It is fundamental for protecting cellular contents, mediating communication with the extracellular environment, facilitating selective transport, and maintaining cellular structure[3][5][6][7]. Its composition and function are highly regulated and serve as the foundation for many physiological processes. Disease states frequently involve defects in membrane protein function, repair mechanisms, or lipid composition, but therapies usually target specific membrane components rather than the membrane structure itself[1][4]. In summary: Mammalian cell membrane is not a drug target, but a foundational cell structure supporting specific therapeutic targets (membrane proteins, receptors, channels) which should be named and categorized individually for therapeutic and biomarker purposes.

Other names
Plasma membraneBiological membraneCell membraneCytoplasmic membrane
02

Mechanism of action

For membrane proteins: receptor modulation, channel block/activation, transporter inhibition/activation, signal transduction interference, but no direct mechanisms against the "membrane" structure as a whole

03

Biological functions

Structural barrierExtracellular sensingSignal transductionSelective transportCell-cell adhesionCell recognitionMaintenance of homeostasisCell shape supportCompartmentalization within eukaryotes
04

Disease associations

Aberrant membrane proteins and lipids are implicated in diseases including cancer, obesity, neurodegenerative diseases, cardiovascular diseases, and muscular dystrophies, but these are mediated by specific membrane components rather than the membrane as a whole
05

Safety considerations

Non-specific disruption of the membrane (lysis) leads to cell death and toxicity (e.g., hemolysis, neurotoxicity, cytotoxicity)Targeting the membrane as a whole generally lacks specificity and is associated with significant off-target side effects.
06

Interacting drugs

While many drugs interact with proteins, enzymes, and channels embedded in the membrane, there are no drugs that interact with the cell membrane as a whole. Drugs interacting with membrane components include ion channel modulators (e.g., calcium channel blockers), receptor agonists/antagonists, and more
07

Biomarkers

Membrane proteins serve as biomarkers in disease (e.g., CD markers for immune cells, HER2 in breast cancer), while the cell membrane itself is not a biomarker

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