ArticleCurrent issues in molecular biology2025
BCG Impact on PD-1/PD-L1 Expression in Peripheral Immunocytes of Cancer Patients-A Potential Explanation for Its Activity in Preventing Alzheimer's Disease.
Article in Current issues in molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Abstract
We found, retrospectively, that BCG therapy in non-muscle invasive bladder cancer (NMIBC) reduces the rate of Alzheimer's disease. Blockade of the ligand PD-L1 or its checkpoint receptor PD-1 has been shown to improve cognitive function and reduce brain pathology features in a mouse model of Alzheimer's disease (AD). Given that peripheral blood mononuclear cells (PBMCs) are involved in aging brain pathology and thus represent a potential AD therapeutic target, we analyzed the impact of BCG on the expression of PD-1, PD-L1, and inflammation modulators in PBMCs. Cryopreserved PBMCs pre- and post-BCG-treated six melanoma and six NMIBC patients were repurposed for immunoelectrophoretic analysis of PBMC-extracted proteins. PBMCs, post-BCG treatment in melanoma patients, were harvested only 4 months after the start of treatment (short BCG period), whereas the PBMCs of NMIBC patients were harvested 24 to 52 months after starting the BCG treatment. In melanoma PBMCs, BCG upregulated PD-L1 (
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