Logo Logo
Hilfe
Hilfe
Switch Language to English

Del Val, Margarita; Münch, Konrad; Reddehase, Matthias J. und Koszinowski, Ulrich H. (1989): Presentation of CMV immediate-early antigen to cytolytic T lymphocytes is selectively prevented by viral genes expressed in the early phase. In: Cell, Bd. 58: S. 305-315 [PDF, 1MB]

[thumbnail of Koszinowski_Ulrich_6734.pdf]
Vorschau
Download (1MB)

Abstract

The regulation of antigen processing and presentation to MHC class I-restricted cytolytic T lymphocytes was studied in cells infected with murine cytomegalovirus. Recognition by cytolytic T lymphocytes of the phosphoprotein pp89, the immunodominant viral antigen expressed in the immediate-early phase of infection, was selectively prevented during the subsequent expression of viral early genes. The surface expression of MHC class I glycoproteins and their capacity to present externally added pp89-derived antigenic peptides were not affected. Because recognition of several other antigens occurred during the early phase, a general failure in processing and presentation was excluded. Since neither rate of synthesis, amount, stability, nor nuclear transport of pp89 was modified, the failure in recognition indicates a selective interference with pp89 antigen processing and presentation.

Dokument bearbeiten Dokument bearbeiten