Volume 11 Issue 5, 1 May 2005

Letter

Article

Technical Report

Brief Communication

Editorial

News

Book Review

News & Views

  • News & Views |

    Two studies show that SIV directly kills massive numbers of immune cells in the gut within days of infection. The results come on the heels of similarly dramatic findings for HIV, and could radically shift the focus of HIV research and therapy.

    • Ronald S Veazey
    •  & Andrew A Lackner
  • News & Views |

    The lipid mediator ceramide contributes to tissue destruction in emphysema by promoting apoptosis of structural cells in the lung. This finding challenges a traditional hypothesis for the pathogenesis of emphysema ( pages 491–498 ).

    • Jack A Elias
    •  & Chun Geun Lee
  • News & Views |

    Some commonly used pain medications inhibit the production of amyloid-β, a toxic peptide thought to have a major role in Alzheimer disease. New studies suggest that some COX-2 inhibitors may do the opposite—promote the production of this toxic peptide ( pages 545–550 ).

    • Tony Wyss-Coray
  • News & Views |

    A new mouse model suggests that genomic instability leads to neuronal cell death in Nijmegen breakage syndrome—a neurological disease associated with predisposition to cancer. Impairing ATM or p53 function in the mice holds cell death at bay, restoring normal neurological function despite persistent genetic abnormalities ( pages 538–544 ).

    • Carrolee Barlow
    •  & Kai Treuner
  • News & Views |

    How many critical functions can be jammed into one receptor? New work on thrombomodulin explores the limits. This already overtaxed protein binds HMGB1, a molecule that contributes to sepsis and other inflammatory conditions.

    • Charles Esmon
  • News & Views |

    Some types of tumors respond well to radiation therapy, whereas others are refractory to treatment. The molecular underpinnings of these differences are now coming to light ( pages 484–490 ).

    • Ralph Weichselbaum
  • News & Views |

    Titin is a massive protein that provides mechanical and structural support in striated muscles. Titin is now implicated in a new signaling pathway that seems to control gene expression. Loss of this pathway as a result of a mutation in titin leads to hereditary muscle disease.

    • Larissa Tskhovrebova
    •  & John Trinick

Corrigendum