The low efficiency of currently-used anti-cancer therapies poses a serious challenge, especially in the case of malignant melanoma, a cancer characterized by elevated invasiveness and relatively high mortality rate.,The role of the tumor microenvironment in the progression of melanoma and its acquisition of resistance to treatment seems to be the main focus of recent studies.,One of the factors that, in normal conditions, aids the organism in its fight against the cancer and, following the malignant transformation, adapts to facilitate the development of the tumor is the immune system.,A variety of cell types, i.e., T and B lymphocytes, macrophages, and dendritic and natural killer cells, as well as neutrophils, support the growth and invasiveness of melanoma cells, utilizing a plethora of mechanisms, including secretion of pro-inflammatory molecules, induction of inhibitory receptors expression, or depletion of essential nutrients.,This review provides a comprehensive summary of the processes regulated by tumor-associated cells that promote the immune escape of melanoma cells.,The described mechanisms offer potential new targets for anti-cancer treatment and should be further studied to improve currently-employed therapies.
In recent years, melanoma has become a poster-child for the development of oncogene-directed targeted therapies.,This approach, which has been exemplified by the development of small-molecule BRAF inhibitors and the BRAF/MEK inhibitor combination for BRAF-mutant melanoma, has brought new hope to patients.,Despite these successes, treatment failure seems near inevitable in the majority of cases-even in individuals treated with the BRAF/MEK inhibitor doublet.,In the current review, we discuss the future of combination strategies for patients with BRAF-mutant melanoma as well as the emerging therapeutic options for patients with NRAS-mutant and BRAF/NRAS-wild-type melanoma.,We also outline some of the newest developments in the in-depth personalisation of therapy that should allow melanoma treatment to continue shaping the field precision cancer medicine.