What question did this study set out to answer?

To determine how lysosomal proteolytic capacity varies among antigen-presenting cell subtypes and influences antigen degradation and presentation.

March 11, 2005Science

Differential Lysosomal Proteolysis in Antigen-Presenting Cells Determines Antigen Fate

View Full Paper

Ask AI

Bookmark

Authors

LDLélia DelamarreCentre National de la Recherche Scientifique MPMargit PackYale Cancer Center HCHenry ChangJohns Hopkins University

Discussion

Member takes

Implication

Experimental study reveals divergent lysosomal protease activity across antigen-presenting cells, indicating that limited degradation enables dendritic cells to sustain antigen presentation.

Key Points

To determine how lysosomal proteolytic capacity varies among antigen-presenting cell subtypes and influences antigen degradation and presentation.
Quantified lysosomal protease levels and proteolytic capacity in macrophages, dendritic cells, and B lymphocytes.
Tracked the kinetics of internalized antigen degradation and retention by dendritic cells in vivo within lymphoid organs.
Macrophages exhibited high concentrations of lysosomal proteases and rapidly degraded internalized proteins, whereas dendritic cells and B lymphocytes possessed low protease levels with restricted lysosomal degradation.
Dendritic cells degraded internalized antigens slowly in vivo, retaining antigens in lymphoid organs over prolonged periods and promoting efficient antigen presentation to T cells.

Cite This Study

Delamarre et al. (2005) studied this question.

synapsesocial.com/papers/69dd67b90c229df86840c5a4 https://doi.org/10.1126/science.1108003

View Full Paper

Ask AI

Bookmark

Implication

Experimental study reveals divergent lysosomal protease activity across antigen-presenting cells, indicating that limited degradation enables dendritic cells to sustain antigen presentation.

Differential Lysosomal Proteolysis in Antigen-Presenting Cells Determines Antigen Fate

Discussion

Member takes

Implication

Key Points

Cite This Study

Differential Lysosomal Proteolysis in Antigen-Presenting Cells Determines Antigen Fate

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider