{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T09:52:31Z","timestamp":1790416351573,"version":"4.1.0"},"reference-count":166,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2020,12,14]],"date-time":"2020-12-14T00:00:00Z","timestamp":1607904000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cell Dev. Biol."],"abstract":"<jats:p>\n                    Parkinson\u2019s disease (PD) is the second most common neurodegenerative disease, characterized by progressive bradykinesia, rigidity, resting tremor, and gait impairment, as well as a spectrum of non-motor symptoms including autonomic and cognitive dysfunction. The cardinal motor symptoms of PD stem from the loss of\n                    <jats:italic>substantia nigra<\/jats:italic>\n                    (SN) dopaminergic (DAergic) neurons, and it remains unclear why SN DAergic neurons are preferentially lost in PD. However, recent identification of several genetic PD forms suggests that mitochondrial and lysosomal dysfunctions play important roles in the degeneration of midbrain dopamine (DA) neurons. In this review, we discuss the interplay of cell-autonomous mechanisms linked to DAergic neuron vulnerability and alpha-synuclein homeostasis. Emerging studies highlight a deleterious feedback cycle, with oxidative stress, altered DA metabolism, dysfunctional lysosomes, and pathological alpha-synuclein species representing key events in the pathogenesis of PD. We also discuss the interactions of alpha-synuclein with toxic DA metabolites, as well as the biochemical links between intracellular iron, calcium, and alpha-synuclein accumulation. We suggest that targeting multiple pathways, rather than individual processes, will be important for developing disease-modifying therapies. In this context, we focus on current translational efforts specifically targeting lysosomal function, as well as oxidative stress\n                    <jats:italic>via<\/jats:italic>\n                    calcium and iron modulation. These efforts could have therapeutic benefits for the broader population of sporadic PD and related synucleinopathies.\n                  <\/jats:p>","DOI":"10.3389\/fcell.2020.580634","type":"journal-article","created":{"date-parts":[[2020,12,13]],"date-time":"2020-12-13T23:50:41Z","timestamp":1607903441000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":68,"title":["The Convergence of Alpha-Synuclein, Mitochondrial, and Lysosomal Pathways in Vulnerability of Midbrain Dopaminergic Neurons in Parkinson\u2019s Disease"],"prefix":"10.3389","volume":"8","author":[{"given":"Georgia","family":"Minakaki","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitri","family":"Krainc","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lena F.","family":"Burbulla","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2020,12,14]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"239","DOI":"10.1016\/S0896-6273(00)80886-7","article-title":"Mice lacking alpha-synuclein display functional deficits in the nigrostriatal dopamine system.","volume":"25","author":"Abeliovich","year":"2000","journal-title":"Neuron"},{"key":"B2","doi-asserted-by":"publisher","first-page":"7441","DOI":"10.1523\/JNEUROSCI.0636-16.2016","article-title":"A New Glucocerebrosidase Chaperone Reduces alpha-Synuclein and Glycolipid Levels in iPSC-Derived Dopaminergic Neurons from Patients with Gaucher Disease and Parkinsonism.","volume":"36","author":"Aflaki","year":"2016","journal-title":"J. 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