Activity-dependent dynamics and sequestration of proteasomes in dendritic spines

Article Abstract:

The N-methyl-D-aspartate (NMDA) receptor-dependent redistribution of proteasomes from dendritic shafts to synaptic spines upon synaptic stimulation is reported providing a mechanism for local protein degradation. Proteasome sequestration is persistent, reflecting an association with actin-based cytoskeleton, and it is indicated that synaptic activity can promote the recruitment and sequestration of proteasomes to locally remodel the protein composition of synapses.

Author: Schuman, Erin M., Bingol, Baris
California, Health aspects, Analysis, Neural transmission, Synaptic transmission, Methyl aspartate, N-methyl-D-aspartate, Chemical properties, Sequestration (Chemistry)

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ER-phagosme fusion defines an MHC class 1 cross-presentation compartment in dendritic cells

Article Abstract:

The mechanism of cross presentation in which peptides derived from phagocytosed antigens presented to CD8+ T lymphocytes on major histocompatibility complex (MHC) class I molecules are described. Phagosome fusion with endoplasmic reticulum (ER) and furthur reaction is explained.

Author: Amigorena, Sebastian, Guermonprez, Pierre, Saveanu, Loredana, Kleijmeer, Monique, Davoust, Jean, Endert, Peter van
Peptides, Phagocytosis

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Impairment of dendritic cells and adaptive immunity by anthrax lethal toxin

Article Abstract:

Anthrax is considered to be dangerous as it possess an agent of biological terrorism. Anthrax lethal toxin (LT) is a critical virulence factor of B. anthracis, which occurs as a complex of protective antigen and lethal factor.

Author: Leppla, Stephen H., Agrawal, Anshu, Lingappa, Jai, Agrawal, Sudhanshu, Jabbar, Abdul, Pulendran, Bali, Quinn, Conrad
Influence, Bioterrorism, Anthrax

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Subjects list: Research, Dendritic cells
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