ASTROGLIOSIS AND THE GLIAL SCAR: THE DUAL ROLE OF REACTIVE ASTROCYTES IN CENTRAL NERVOUS SYSTEM PATHOLOGY

Authors

  • Samir Azis Al-Maktab Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine
  • Khalil Omar Al-Haddad Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine
  • Abu Ghasan Mirza Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine

DOI:

https://doi.org/10.46827/ejphs.v8i4.238

Keywords:

astrogliosis, reactive astrocytes, glial scar, GFAP, neuroinflammation, axonal regeneration, chondroitin sulfate proteoglycans

Abstract

Astrogliosis is the ubiquitous and complex cellular response of the central nervous system (CNS) to a wide array of insults, including trauma, ischemia, and neurodegeneration. Often viewed through the lens of the "glial scar," this process involves a spectrum of changes in astrocytes that serve to isolate damaged tissue and preserve the integrity of the blood-brain barrier (BBB). The hallmark of astrogliosis is the transition of astrocytes from a quiescent state to a reactive phenotype. This is characterized by the upregulation of intermediate filaments, specifically Glial Fibrillary Acidic Protein (GFAP), and the hypertrophy of cellular processes. While initially neuroprotective by sequestering toxic inflammatory cells, the chronic formation of a mature glial scar creates a dense physical and chemical barrier. This environment is rich in Chondroitin Sulfate Proteoglycans (CSPGs), which actively inhibit axonal regeneration and functional rewiring. In conditions such as spinal cord injury (SCI) and focal brain contusions, astrogliosis is the primary impediment to neural repair. Conversely, a failure of the astrogliotic response can lead to unchecked inflammation and widespread tissue death. Understanding the temporal dynamics of astrogliosis is critical for developing future therapies. Current research focuses on modulating rather than eliminating the glial response, aiming to retain its protective qualities while neutralizing its inhibitory effects on neuroplasticity.

 

Author Biographies

  • Samir Azis Al-Maktab, Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine

    Samir Azis Al-Maktab is a Palestinian PhD candidate in Neurology whose research centers on neurodegenerative disorders and molecular mechanisms of neuronal injury. With a background in biomedical sciences, his doctoral work investigates biomarkers associated with disease progression and therapeutic response, integrating laboratory-based analysis with clinical data. Samir has been actively involved in experimental design, data interpretation, and the preparation of manuscripts for peer-reviewed journals. He has presented his findings at academic conferences and values collaboration across disciplines, particularly with clinicians and molecular biologists. In parallel with his research, he contributes to undergraduate teaching in neurophysiology and research methodology. Samir is deeply committed to advancing neurological research infrastructure in Palestine and aims to contribute to early diagnosis strategies and evidence-based interventions for neurodegenerative diseases through an academic research career.

  • Khalil Omar Al-Haddad, Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine

    Khalil Omar Al-Haddad is a PhD candidate in Neurology from Palestine with a primary interest in clinical neurology and translational research. His doctoral studies focus on the use of neuroimaging and electrophysiological techniques to investigate functional alterations in neurological disorders. Khalil’s work emphasizes the translation of research findings into clinically meaningful applications, particularly in diagnostic and prognostic assessment. He has contributed to multidisciplinary research projects, conference presentations, and collaborative publications. Alongside his research activities, he assists in teaching neuroanatomy and clinical neuroscience courses and mentors junior students. Khalil is motivated by the challenges of neurological care in resource-limited settings and seeks to contribute to the development of accessible diagnostic tools and improved clinical practices in Palestine and the wider region.

  • Abu Ghasan Mirza, Lecturer, Department of Neurology, Palestine Ahliya University, Bethlehem, Palestine

    Abu Ghasan Mirza is a Palestinian PhD candidate in Neurology whose research focuses on neurovascular disorders and neurological complications associated with systemic disease. His academic training combines neuroscience with clinical research methods, allowing him to analyze large clinical datasets and patient outcomes. His doctoral work examines risk factors, disease progression, and preventative strategies related to cerebrovascular conditions. Abu Ghasan has been involved in research ethics oversight, data management, and scholarly writing, and has contributed to academic presentations. He is also engaged in mentoring undergraduate students and supporting laboratory activities. With a strong interest in public health–oriented neuroscience, he aims to contribute to policy-relevant research and capacity building in Palestine, with the long-term goal of improving neurological outcomes through research-informed clinical and public health initiatives.

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Published

2026-01-25

Issue

Vol. 8 No. 4 (2025)

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How to Cite

ASTROGLIOSIS AND THE GLIAL SCAR: THE DUAL ROLE OF REACTIVE ASTROCYTES IN CENTRAL NERVOUS SYSTEM PATHOLOGY. (2026). European Journal of Public Health Studies, 8(4). https://doi.org/10.46827/ejphs.v8i4.238