Tungsten (W)

Tungsten is a transition metal (atomic symbol W, atomic number 74) that is not naturally found in human biological systems but is essential for certain microorganisms. In these organisms, it serves as a catalytic metal center in tungstoenzymes, such as formate dehydrogenase, which are involved in anaerobic metabolism [1][2]. In medical research, tungsten compounds like sodium tungstate have demonstrated insulin-mimetic properties, showing potential in treating diabetes and obesity by inhibiting protein tyrosine phosphatases and enhancing insulin signaling pathways [3][4]. However, tungsten is not a standard therapeutic target; it is a chemical element whose pharmacological use is limited by significant safety concerns. Chronic exposure to tungsten dust is associated with hard metal lung disease (a form of interstitial lung disease) and potential reproductive and developmental toxicity [5]. Consequently, while it exhibits interesting biochemical properties, it remains an experimental agent rather than a recognized drug target in human medicine.

Other names

WolframAtomic number 74W

Tungsten, primarily in the form of sodium tungstate, acts as an insulin-mimetic agent by inhibiting protein tyrosine phosphatases (PTPases). This inhibition leads to the sustained phosphorylation of the insulin receptor and its substrates, thereby activating downstream signaling pathways like the ERK1/2 and PI3K/Akt pathways, which promote glucose uptake and glycogen synthesis [3][4].