Melanoma tumor spheroids

Melanoma tumor spheroids are three-dimensional (3D) in vitro biological models that mimic the structural and physiological complexity of solid melanoma tumors in vivo [1][2]. Unlike traditional monolayer (2D) cultures, these spheroids recreate the spatial organization of cancer cells, facilitating realistic cell-cell and cell-extracellular matrix (ECM) interactions [3]. They are characterized by the development of pathophysiological gradients, including a proliferative outer layer, a quiescent middle layer, and a hypoxic or necrotic core, which closely resemble the microenvironment of human tumors [4][5]. While they are frequently used in pharmaceutical research to evaluate the penetration and efficacy of targeted therapies (such as BRAF and MEK inhibitors) and immunotherapies, a spheroid is a complex multicellular system rather than a discrete molecular target like a receptor or enzyme [6]. Consequently, they serve as a critical bridge between simplified cell cultures and complex animal models in the drug discovery pipeline [7].

Other names

3D melanoma cultureMulticellular melanoma spheroidsMelanoma MCTSMelanoma microtissuesMelanoma multicellular tumor spheroids

Not applicable; melanoma tumor spheroids are multicellular in vitro models used to study drug efficacy and tumor biology rather than being a single molecular target with a specific mechanism of action.