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Annual Review of Pathology: Mechanisms of Disease

Volume 20, 2025

Pathogenesis of Germinal Matrix Hemorrhage: Insights from Single-Cell Transcriptomics

Abstract

The germinal matrix harbors neurogenic niches in the subpallium of the prenatal human brain that produce abundant GABAergic neurons. In preterm infants, the germinal matrix is particularly vulnerable to developing hemorrhage, which disrupts neurogenesis and causes severe neurodevelopmental sequelae. However, the disease mechanisms that promote germinal matrix hemorrhage remain unclear. Here, we review recent advances using single-cell transcriptomics to uncover novel mechanisms that govern neurogenesis and angiogenesis in the germinal matrix of the prenatal human brain. These approaches also reveal the critical role of immune–vascular interaction that promotes vascular morphogenesis in the germinal matrix and how proinflammatory factors from activated neutrophils and monocytes can disrupt this process, leading to hemorrhage. Collectively, these results reveal fundamental disease mechanisms and therapeutic interventions for germinal matrix hemorrhage.

Keyword(s): angiogenesis, germinal matrix, immune–vascular interaction, inflammation, preterm birth
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/content/journals/10.1146/annurev-pathmechdis-111523-023446
2025-01-24
2025-04-25
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/content/journals/10.1146/annurev-pathmechdis-111523-023446
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Pathogenesis of Germinal Matrix Hemorrhage: Insights from Single-Cell Transcriptomics
Annual Review of Pathology: Mechanisms of Disease 20, 221 (2025); https://doi.org/10.1146/annurev-pathmechdis-111523-023446
/content/journals/10.1146/annurev-pathmechdis-111523-023446
/content/journals/10.1146/annurev-pathmechdis-111523-023446
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