What does mesenchymal mean?
Mesenchymal is an adjective used in biology and medicine to describe mesenchyme, the embryonic connective tissue that gives rise to many of the body's connective and supportive tissues. The best-known application is the term mesenchymal stem cell, a cell capable of developing into several more specialized forms, including bone, cartilage, muscle, and fat cells. Mesenchymal tissue is especially important during embryonic development, when it helps form structures such as the skeleton and connective tissues. In clinical and research settings, the word also identifies cells characterized by their origin or function, such as cells in a tumor's supporting stroma. Although the term is occasionally used informally for anything connective or flexible, its established meanings are primarily technical. It is a specialized word, but one that is important for describing how tissues originate, interact, and occasionally regenerate.
adjectiveRelating to mesenchyme, the embryonic connective tissue from which many connective and supportive tissues develop. It may also describe cells or tissues arising from this type of tissue.
- Of or relating to mesenchyme or the embryonic connective tissue from which many connective and supportive tissues develop.
- Characterized by or containing cells that originated from mesenchyme.
"The researchers identified mesenchymal cells capable of differentiating into bone and cartilage."
"Mesenchymal stem cells were isolated from the patient's adipose tissue."
"The condition is associated with abnormal mesenchymal development in the affected limb."
Mesenchymal cells are developmental shapeshifters: they can give rise to bone, cartilage, muscle, and fat.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of mesenchymal
The adjective mesenchymal derives from mesenchyme, which comes from Greek mesenchyma, meaning “middle tissue.” That formation is associated with Greek mesos, “middle,” en-, “in,” and chymos, “juice,” reflecting an old anatomical description of the tissue's fluid character. Its scientific sense developed with modern histology and embryology.
Related word forms
How mesenchymal is actually used
This is a technical term used chiefly in anatomy, developmental biology, medicine, and cell biology. It is not normally used in general nontechnical prose.