Alpha-synuclein modulates the positioning of endolysosomes in melanoma cells.

ABSTRACT: The Parkinson's disease-associated protein, alpha-synuclein (α-syn; SNCA) is suspected of promoting melanoma progression. We recently knocked out SNCA in the human cutaneous melanoma cell line SK-MEL-28 to try to deduce the role of α-syn in melanoma progression. Compared to control cells, the SK-MEL-28 SNCA-knockout (KO) cells have significantly inhibited growth, invasion, and migration, and the levels of the neural adhesion protein L1CAM and the transferrin receptor (TFR1) are significantly reduced. In this study, using transmission electron microscopy and immunofluorescence we show that SK-MEL-28 SNCA-KO cells relative to control cells exhibit an (i) increased density of endolysosomes; (ii) increased perinuclear positioning of large (> 800 nm) endolysosomes; and (iii) decreased levels of

SUBMITTER: Aloy NM 

PROVIDER: S-EPMC12368772 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature