September 2006

• When killers come good

  Natural killer cells prevent the migration of donor antigen–presenting cells and the activation of alloreactive T cells in a skin-transplantation model.

  Original research paper: J. Exp. Med.,
  (24 July 2006); doi:10.1084/jem.20060603

• Nibbling away at actin organization

  Bitesize (Btsz) is a synaptotagmin-like protein that controls the organization of actin and stabilises adherens junctions in Drosophila embryos.

  Original research paper: Nature 442, 580-584
  (2006)

• Stress and cancer

  Behavioural stress can enhance tumour angiogenesis and promote malignant cell growth in vivo.

  Original research paper: Nature Med.,
  (23 July 2006); doi:10.1038/nm1447

• STEDy progress

  Continuing progress in the development of stimulated emission depletion microscopy (STED) is gradually fulfilling the method's promise of ultrahigh-resolution fluorescence microscopy.

  Original research paper: Proc. Natl. Acad. Sci. USA 103, 11440-11445
  (2006)