Digital microscope and M8 slidescanner in use for research into neurodegenerative diseases

Dennis Vermeulen

Dennis Vermeulen

Business Development at PreciPoint. Supports customers in the digitization of their laboratories throughout Germany.

According to a report of The Lancet Neurology of May 2019 neurological disorders is with 9,0 million deaths and 16,5% of global deaths, the second leading cause of death after heart disease and with 276 million DALYs and 11,6% of global DALYs, it is the leading cause of disability. In the scientific paper “Abnormal Mitochondria in a Non-human Primate Model of MPTP-induced Parkinson’s Disease: Drp1 and CDK5/p25 Signaling” Park J. et al examining abnormal Mitochondria of non-human primate and the impact of it on Parkinson disease.

Abstract:

„Mitochondria continuously fuse and divide to maintain homeostasis. An impairment in the balance between the fusion and fission processes can trigger mitochondrial dysfunction. Accumulating evidence suggests that mitochondrial dysfunction is related to neurodegenerative diseases such as Parkinson’s disease (PD), with excessive mitochondrial fission in dopaminergic neurons being one of the pathological mechanisms of PD. Here, we investigated the balance between mitochondrial fusion and fission in the substantia nigra of a non-human primate model of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD. We found that MPTP induced shorter and abnormally distributed mitochondria. This phenomenon was accompanied by the activation of dynamin-related protein 1 (Drp1), a mitochondrial fission protein, through increased phosphorylation at S616. Thereafter, we assessed for activation of the components of the cyclin-dependent kinase 5 (CDK5) and extracellular signal-regulated kinase (ERK) signaling cascades, which are known regulators of Drp1(S616) phosphorylation. MPTP induced an increase in p25 and p35, which are required for CDK5 activation. Together, these findings suggest that the phosphorylation of Drp1(S616) by CDK5 is involved in mitochondrial fission in the substantia nigra of a non-human primate model of MPTP-induced PD.“

Junghyung Park et al.

What was the M8 used for?

Our digital scanner M8 was used to generate the scans of tissue sections with the immunohistochemically stained mitochondria.

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