IMMUNOBIOLOGY Rho-mDia1 pathway is required for adhesion, migration, and T-cell stimulation in dendritic cells

نویسندگان

  • Hideaki Tanizaki
  • Gyohei Egawa
  • Kayo Inaba
  • Tetsuya Honda
  • Saeko Nakajima
  • Catharina Sagita Moniaga
  • Atsushi Otsuka
  • Toshimasa Ishizaki
  • Michio Tomura
  • Takeshi Watanabe
  • Yoshiki Miyachi
  • Shuh Narumiya
  • Takaharu Okada
  • Kenji Kabashima
چکیده

1Department of Dermatology and 2Center for Innovation in Immunoregulative Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan; 3Department of Animal Development and Physiology, Kyoto University Graduate School of Biostudies, Kyoto, Japan; 4Department of Pharmacology, Kyoto University Graduate School of Medicine, Kyoto, Japan; and 5Laboratory for Autoimmune Regulation and 6Research Unit for Immunodynamics, Research Center for Allergy & Immunology, RIKEN, Yokohama, Japan

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منابع مشابه

Rho-mDia1 pathway is required for adhesion, migration, and T-cell stimulation in dendritic cells.

Dendritic cells (DCs) are essential for the initiation of acquired immune responses through antigen acquisition, migration, maturation, and T-cell stimulation. One of the critical mechanisms in this response is the process actin nucleation and polymerization, which is mediated by several groups of proteins, including mammalian Diaphanous-related formins (mDia). However, the role of mDia in DCs ...

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The Rho-mDia1 pathway regulates cell polarity and focal adhesion turnover in migrating cells through mobilizing Apc and c-Src.

Directed cell migration requires cell polarization and adhesion turnover, in which the actin cytoskeleton and microtubules work critically. The Rho GTPases induce specific types of actin cytoskeleton and regulate microtubule dynamics. In migrating cells, Cdc42 regulates cell polarity and Rac works in membrane protrusion. However, the role of Rho in migration is little known. Rho acts on two maj...

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Interaction between mDia1 and ROCK in Rho-induced migration and adhesion of human dental pulp cells.

AIM To investigate the effects of mammalian homologue of Drosophila diaphanous-1(mDia1) and Rho-associated coiled-coil-containing protein kinase (ROCK) on the migration and adhesion of dental pulp cells (DPCs). METHODOLOGY Lysophosphatidic acid (LPA) was used to activate Rho signalling. mDia1 and ROCK were inhibited by short interfering RNA and the specific inhibitor, Y-27632, respectively. T...

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Mammalian Diaphanous-Related Formin 1 Regulates GSK3β-Dependent Microtubule Dynamics Required for T Cell Migratory Polarization

The mammalian diaphanous-related formin (mDia1), a Rho-regulated cytoskeletal modulator, has been shown to promote T lymphocyte chemotaxis and interaction with antigen presenting cells, but the mechanisms underpinning mDia1 roles in these processes have not been defined. Here we show that mDia1(-/-) T cells exhibit impaired lymphocyte function-associated antigen 1 (LFA-1)-mediated T cell adhesi...

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The formin homology protein mDia1 regulates dynamics of microtubules and their effect on focal adhesion growth

The formin homology protein, mDia1, is a major effector of Rho controlling, together with the Rho-kinase (ROCK), the formation of focal adhesions and stress fibers. Here we show that a constitutively active form of mDia1 (mDia1∆N3) affects the dynamics of microtubules at three stages of their life. We found that in cells expressing mDia1∆N3, (1) the growth rate at the microtubule plus-end decre...

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تاریخ انتشار 2010