ArticleBrain and behavior2025
Aldh1l1-Cre/ERT2 Drives Flox-Mediated Recombination in Peripheral and CNS Infiltrating Immune Cells in Addition to Astrocytes During CNS Autoimmune Disease.
Article in Brain and behavior, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Constellations of Thought: Astrocytic Contributions to Cognition Across Rodent Models of Brain Dysfunction.Biomolecules · 2026Review
- The astrocyte marker ALDH1L1 also identifies a stromal cell population in the lymph node.Scientific reports · 2026Article
- Astrocytic PYGM attenuates tau pathology by promoting lactate-mediated neuroprotection.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Selective Deletion of NBCe1 in Reactive Astrocytes Attenuates Ischemic Stroke Brain Damage.Glia · 2025Article
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7 authors.
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Abstract
introductionThe transgenic murine Cre/loxP system is deployed to investigate the role of central nervous system (CNS) cell-specific gene alterations in both healthy conditions and models of neurologic disease. The Aldh1l1-Cre/ERT2 line is widely used to target astrocytes with high coverage and specificity within the CNS. Specificity outside the CNS, however, has not been well-characterized, and Aldh1l1-Cre/ERT2-mediated recombination within the spleen has been reported. In many CNS diseases, infiltrating immune cells from the periphery drive or regulate pathogenesis. We tested whether flox-mediated recombination from Aldh1l1-Cre/ERT2 occurs in immune cells in addition to astrocytes and whether these cells traffic from the spleen into the spinal cord during experimental autoimmune encephalomyelitis (EAE), a model of CNS autoimmune disease.
methodsTwo astrocyte-targeted mouse lines were generated with the red fluorescent reporter, tdTomato, by crossing the Cre-recombinase lines, Tg(Aldh1l1-Cre/ERT2)1Khakh and Tg(Gfap-Cre)73.12Mvs, with the reporter line, Gt(ROSA)26Sor. Aldh1l1-Cre/ERT2 was activated with 5 days of intraperitoneal tamoxifen, whereas Gfap-Cre was constitutively active. EAE was induced 2 weeks after tamoxifen, and then spleens and spinal cords were harvested and processed for flow cytometry at various time points after disease onset in EAE versus healthy controls.
resultsIn EAE, Aldh1l1-Cre/ERT2, but not Gfap-Cre, induced multiple tdTomato
conclusionUse of Aldh1l1-Cre/ERT2 should therefore account for recombination in both astrocytes and immune cells in disease models involving peripheral immune cell infiltration into the CNS.
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