Related Experiment Video
Updated: Aug 11, 2025
Cerebrospinal Fluid MicroRNA Profiling Using Quantitative Real Time PCR
Published on: January 22, 2014
Comprehensive Profiling of Secreted Factors in the Cerebrospinal Fluid of Moyamoya Disease Patients
Kumar Abhinav1,2,3, Alex G Lee4, Arjun V Pendharkar1,2
1Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA.
Abstract:
Moyamoya disease (MMD) is characterized by progressive occlusion of the intracranial internal carotid arteries, leading to ischemic and hemorrhagic events. Significant clinical differences exist between ischemic and hemorrhagic MMD. To understand the molecular profiles in the cerebrospinal fluid (CSF) of MMD patients, we investigated 62 secreted factors in both MMD subtypes (ischemic and hemorrhagic) and examined their relationship with preoperative perfusion status, the extent of postoperative angiographic revascularization, and functional outcomes. Intraoperative CSF was collected from 32 control and 71 MMD patients (37 ischemic and 34 hemorrhagic). Multiplex Luminex assay analysis showed that 41 molecules were significantly elevated in both MMD subtypes when compared to controls, including platelet-derived growth factor-BB (PDGF-BB), plasminogen activator inhibitor 1 (PAI-1), and intercellular adhesion molecule 1 (ICAM1) (p < 0.001). Many of these secreted proteins have not been previously reported in MMD, including interleukins (IL-2, IL-4, IL-5, IL-7, IL-8, IL-9, IL-17, IL-18, IL-22, and IL-23) and C-X-C motif chemokines (CXCL1 and CXCL9). Pathway analysis indicated that both MMD subtypes exhibited similar cellular/molecular functions and pathways, including cellular activation, migration, and inflammatory response. While neuroinflammation and dendritic cell pathways were activated in MMD patients, lipid signaling pathways involving nuclear receptors, peroxisome proliferator-activated receptor (PPAR), and liver X receptors (LXR)/retinoid X receptors (RXR) signaling were inhibited. IL-13 and IL-2 were negatively correlated with preoperative cerebral perfusion status, while 7 factors were positively correlated with the extent of postoperative revascularization. These elevated cytokines, chemokines, and growth factors in CSF may contribute to the pathogenesis of MMD and represent potential future therapeutic targets.
Insights
Cerebrospinal fluid (CSF) analysis in Moyamoya disease (MMD) reveals elevated levels of 41 secreted factors, including interleukins and chemokines, impacting neuroinflammation and potentially serving as therapeutic targets for ischemic and hemorrhagic MMD.
Area of Science:
- Neurology
- Molecular Biology
- Biochemistry
Background:
- Moyamoya disease (MMD) involves progressive intracranial artery occlusion, causing ischemic and hemorrhagic events with distinct clinical presentations.
- Understanding the molecular mechanisms underlying MMD subtypes is crucial for developing targeted therapies.
Purpose of the Study:
- To investigate the molecular profiles in cerebrospinal fluid (CSF) of patients with ischemic and hemorrhagic MMD.
- To correlate CSF molecular changes with preoperative perfusion, postoperative revascularization, and functional outcomes.
Main Methods:
- Collected intraoperative CSF from 71 MMD patients (37 ischemic, 34 hemorrhagic) and 32 controls.
- Utilized multiplex Luminex assay to analyze 62 secreted factors.
- Performed pathway analysis to identify affected cellular and molecular functions.
Main Results:
- 41 secreted molecules were significantly elevated in both MMD subtypes compared to controls, including platelet-derived growth factor-BB (PDGF-BB), plasminogen activator inhibitor 1 (PAI-1), and intercellular adhesion molecule 1 (ICAM1).
- Novel MMD-associated factors identified include various interleukins (e.g., IL-2, IL-13) and C-X-C motif chemokines (e.g., CXCL1, CXCL9).
- Neuroinflammation and dendritic cell pathways were activated, while lipid signaling pathways were inhibited. IL-13 and IL-2 correlated negatively with perfusion, and 7 factors correlated positively with revascularization.
Conclusions:
- Elevated CSF cytokines, chemokines, and growth factors are characteristic of MMD, irrespective of subtype.
- These molecules may play a role in MMD pathogenesis.
- Identified CSF factors represent potential therapeutic targets for MMD management.
