Lipid Metabolism in Neurodegenerative Diseases

Lim, Lynette; Shui, Guanghou; Wenk, Markus R.

doi:10.1002/9783527655946.ch14

Cited by 1 publication

(1 citation statement)

References 138 publications

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“…Sterol metabolism naturally being one of the cornerstones of the energy cycle in the brain plays an important role in numerous neural metabolic pathways. Disruption of sterol homeostasis in the brain may be linked with multiple neurodegenerative pathologies such as MS, AD, PD, HD, and ALS. − Any disturbance in the enzymatic mechanism of cholesterol synthesis, trafficking, or dissolution would lead to abnormal deposition of various sterol moieties in the intracellular or extracellular matrix. This might cause hindrance in impulse transmission through neurons, leading to atypical pathology of neurodegenerative diseases as AD, PD, or Lewy body dementia .…”

Section: Discussionmentioning

confidence: 99%

TemporalIn VitroRaman Spectroscopy for Monitoring Replication Kinetics of Epstein–Barr Virus Infection in Glial Cells

et al. 2020

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Raman spectroscopy can be used as a tool to study virus entry and pathogen-driven manipulation of the host efficiently. To date, Epstein–Barr virus (EBV) entry and altered biochemistry of the glial cell upon infection are elusive. In this study, we detected biomolecular changes in human glial cells, namely, HMC-3 (microglia) and U-87 MG (astrocytes), at two variable cellular locations (nucleus and periphery) by Raman spectroscopy post-EBV infection at different time points. Two possible phenomena, one attributed to the response of the cell to viral attachment and invasion and the other involved in duplication of the virus followed by egress from the host cell, are investigated. These changes corresponded to unique Raman spectra associated with specific biomolecules in the infected and the uninfected cells. The Raman signals from the nucleus and periphery of the cell also varied, indicating differential biochemistry and signaling processes involved in infection progression at these locations. Molecules such as cholesterol, glucose, hyaluronan, phenylalanine, phosphoinositide, etc. are associated with the alterations in the cellular biochemical homeostasis. These molecules are mainly responsible for cellular processes such as lipid transport, cell proliferation, differentiation, and apoptosis in the cells. Raman signatures of these molecules at distinct time points of infection indicated their periodic involvement, depending on the stage of virus infection. Therefore, it is possible to discern the details of variability in EBV infection progression in glial cells at the biomolecular level using time-dependent in vitro Raman scattering.

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