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Träfflista för sökning "WFRF:(Haase Peter) srt2:(2005-2009)"

Search: WFRF:(Haase Peter) > (2005-2009)

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1.
  • Pivarcsi, Andor, et al. (author)
  • Tumor immune escape by the loss of homeostatic chemokine expression.
  • 2007
  • In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 104:48, s. 19055-60
  • Journal article (peer-reviewed)abstract
    • The novel keratinocyte-specific chemokine CCL27 plays a critical role in the organization of skin-associated immune responses by regulating T cell homing under homeostatic and inflammatory conditions. Here we demonstrate that human keratinocyte-derived skin tumors may evade T cell-mediated antitumor immune responses by down-regulating the expression of CCL27 through the activation of epidermal growth factor receptor (EGFR)-Ras-MAPK-signaling pathways. Compared with healthy skin, CCL27 mRNA and protein expression was progressively lost in transformed keratinocytes of actinic keratoses and basal and squamous cell carcinomas. In vivo, precancerous skin lesions as well as cutaneous carcinomas showed significantly elevated levels of phosphorylated ERK compared with normal skin, suggesting the activation of EGFR-Ras signaling pathways in keratinocyte-derived malignancies. In vitro, exogenous stimulation of the EGFR-Ras signaling pathway through EGF or transfection of the dominant-active form of the Ras oncogene (H-RasV12) suppressed whereas an EGFR tyrosine kinase inhibitor increased CCL27 mRNA and protein production in keratinocytes. In mice, neutralization of CCL27 led to decreased leukocyte recruitment to cutaneous tumor sites and significantly enhanced primary tumor growth. Collectively, our data identify a mechanism of skin tumors to evade host antitumor immune responses.
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2.
  • Krüger, Peter, et al. (author)
  • Quantum Information Processing with Neutral Atoms on Atom Chips
  • 2005. - 2
  • In: Quantum Information Processing. - : Wiley-VCH Verlagsgesellschaft. - 9783527606009 ; , s. 298-311
  • Book chapter (other academic/artistic)abstract
    • This chapter contains sections titled: * Introduction * The Atom Chip * Combined Magneto-Electric Traps * RF-induced Adiabatic Potentials for Manipulating Atoms * Imperfections in the Atom Chip: Disorder Potentials * The Qubit * Entangling Qubits * Quantum Gate via Cold Controlled Collisions * Motional Qubit Gates with Controlled Collisions * Input/Output * Qubit Detection * Quantum Input/Output * Noise and Decoherence * Summary and Conclusion * References
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