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  1. Contractile perinuclear actomyosin network promotes peripheral and polar chromosome interaction with the mitotic spindle

    This article has 6 authors:
    1. Nooshin Sheidaei
    2. John K Eykelenboom
    3. Zuojun Yue
    4. Graeme Ball
    5. Alexander JR Booth
    6. Tomoyuki U Tanaka
    This article has been curated by 1 group:
    • Curated by eLife

      eLife Assessment

      This important study demonstrates that a perinuclear actomyosin network, present in some types of human cells, facilitates kinetochore-spindle attachment of chromosomes in unfavorable locations, thereby reducing their missegregation rate. This actomyosin network and its general role have been studied previously, but this study convincingly clarifies the underlying mechanism and expands the investigation to additional cell lines. The results are relevant to understanding chromosome missegregation in cancer cells.

      [Editors' note: this paper was reviewed by Review Commons.]

    Reviewed by eLife, Review Commons

    This article has 13 evaluationsAppears in 2 listsLatest version Latest activity
  2. HIV-1 envelope glycoprotein modulates CXCR4 clustering and dynamics on the T cell membrane

    This article has 16 authors:
    1. Adriana Quijada-Freire
    2. César A Santiago
    3. Eva M GarcĂ­a-Cuesta
    4. Blanca Soler Palacios
    5. Rosa Ayala-Bueno
    6. Sofia R Gardeta
    7. Enara San Sebastian
    8. Eva Armendariz-Burgoa
    9. Maria Carmen Puertas
    10. Ricardo Villares
    11. Urtzi Garaigorta
    12. Luis Ignacio González-Granado
    13. Jose Miguel Rodriguez Frade
    14. Jakub Chojnacki
    15. Javier Martinez-Picado
    16. Mario Mellado
    This article has been curated by 1 group:
    • Curated by eLife

      eLife Assessment

      This study provides valuable insights into how HIV-1 Env modulates the nanoscale organization and dynamics of the CXCR4 co-receptor on T cells, using quantitative imaging and functional approaches, the authors present convincing evidence that gp120 engagement promotes CD4-dependent clustering and altered mobility of CXCR4, distinct from the effects of the natural ligand CXCL12. Some concerns were raised regarding the interpretation of the single-particle tracking analyses, and additional clarification or analysis may help strengthen the conclusions. The physiological relevance of the findings could be further enhanced by validation with infectious virus and by more clearly integrating the CXCR4R334X mutant observations into the central mechanistic narrative. The work will be of interest to researchers studying HIV entry and membrane receptor organization.

      [Editors' note: this paper was reviewed by Review Commons.]

    Reviewed by eLife, Review Commons

    This article has 11 evaluationsAppears in 2 listsLatest version Latest activity