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Thymic Bmi-1 hampers gammadeltaT17 generation and its derived RORgammat-IL-17A signaling to delay cardiac aging

7 months 1 week ago
New immunosenescence targets for preventing senescence-associated pathological cardiac hypertrophy (SA-PCH) need to be explored. In the present study, with physiologically aged human and mouse samples, the IL-17A level increased with physiological aging, heart failure (HF), and SA-PCH and was negatively correlated with thymic Bmi-1 expression. Bmi-1^(f/f)LckCre^(+) mice and Bmi-1^(f/f) littermates were generated to determine whether Bmi-1 delayed T cell aging by maintaining thymic T cell...
Qiuyi Wang

Human and Mouse Alzheimer's Seeds Differentially Affect Amyloid Deposition and Microglia-Dependent Plaque Response in Aged Mice

7 months 1 week ago
Alzheimer's disease (AD) is a complex neurodegenerative proteinopathy in which Aβ and tau misfold and aggregate into entities that structurally unsettle native proteins, mimicking a prion-like or "seeding" process. These Aβ and tau "seeds" can arrange in different conformations or strains that might display distinct pathogenic properties. Furthermore, recent evidence suggests that microglia play a key role in the amyloidogenic event and can modulate the propagation and aggregation processes....
Juana Andreo-Lopez