Glycosylation and other PTMs alterations in neurodegenerative diseases: Current status and future role in neurotrauma

Hussein Abou-Abbass, Hadi Abou-El-Hassan, Hisham Bahmad, Kazem Zibara, Abir Zebian, Rabab Youssef, Joy Ismail, Rui Zhu, Shiyue Zhou, Xue Dong, Mayse Nasser, Marwan Bahmad, Hala Darwish, Yehia Mechref, Firas Kobeissy

Research output: Contribution to journalReview articlepeer-review

53 Scopus citations


Traumatic brain injuries (TBIs) present a chief public health threat affecting nations worldwide. As numbers of patients afflicted by TBI are expected to rise, the necessity to increase our understanding of the pathophysiological mechanism(s) as a result of TBI mounts. TBI is known to augment the risk of developing a number of neurodegenerative diseases (NDs) such as Alzheimer's disease (AD) and Parkinson's disease (PD). Hence, it is rational to assume that a common mechanistic ground links the pathophysiology of NDs to that of TBIs. Through this review, we aim to identify the protein-protein interactions, differential proteins expression, and PTMs, mainly glycosylation, that are involved in the pathogenesis of both ND and TBI. OVID and PubMed have been rigorously searched to identify studies that utilized advanced proteomic platforms (MS based) and systems biology tools to unfold the mechanism(s) behind ND in an attempt to unveil the mysterious biological processes that occur postinjury. Various PTMs have been found to be common between TBI and AD, whereas no similarities have been found between TBI and PD. Phosphorylated tau protein, glycosylated amyloid precursor protein, and many other modifications appear to be common in both TBI and AD. PTMs, differential protein profiles, and altered biological pathways appear to have critical roles in ND processes by interfering with their pathological condition in a manner similar to TBI. Advancement in glycoproteomic studies pertaining to ND and TBI is urgently needed in order to develop better diagnostic tools, therapies, and more favorable prognoses.

Original languageEnglish
Pages (from-to)1549-1561
Number of pages13
Issue number11
StatePublished - Jun 1 2016


  • Glycans
  • Glycomics
  • Neurodegenerative diseases
  • PTMs
  • TBI


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