Cellular functions

Articles

• phagocytosis
  23 April 2004

  Definition: Phagocytosis is a specific form of endocytosis involving the vesicular internalization of solid particles, such as bacteria. It is therefore distinct from other forms of endocytosis such as pinocytosis, the vesicular internalization of various liquids, and recptor-dependent endocytosis.
  Phagocytosis (literally, cell-eating) is the process by which cells ingest large objects, such as cells which have undergone apoptosis, bacteria, or viruses. The membrane folds around the (...)

• cellular aging
  7 March 2004

  Cellular aging is the result of a progressive decline in the proliferative capacity and life span of cells and the effects of continuous exposure to exogenous influences that result in the progressive accumulation of cellular and molecular damage. Structural and Biochemical Changes with Cellular Aging
  A number of cell functions decline progressively with age.
  Oxidative phosphorylation by mitochondria is reduced, as is synthesis of nucleic acids and structural and enzymatic proteins, (...)

• chromatin remodeling
  29 October 2003

  chromatin remodelling, chromatin-remodeling

• cellular differentiation
  13 July 2003

  cytodifferentiation

• antigen cross-presentation
  5 July 2004

  The ability to process microbial antigens and present them at the surface of cells is an important aspect of our innate ability to clear infections.
  It is generally accepted that antigens in the cytoplasm are loaded in the endoplasmic reticulum and presented at the cell surface on major histocompatibility complex (MHC) class I molecules, whereas peptides present in endo/phagocytic compartments are presented on MHC class II molecules.
  Despite the apparent segregation of the class I and (...)

• cell polarity
  13 July 2003

  See also:
  epithelial polarity
  References
  Wodarz A. Molecular control of cell polarity and asymmetric cell division in Drosophila neuroblasts. Curr Opin Cell Biol. 2005 Oct;17(5):475-81. PMID: #16099639#
  Suzuki A, Hirata M, Kamimura K, Maniwa R, Yamanaka T, Mizuno K, Kishikawa M, Hirose H, Amano Y, Izumi N, Miwa Y, Ohno S. aPKC acts upstream of PAR-1b in both the establishment and maintenance of mammalian epithelial polarity. Curr Biol. 2004 Aug 24;14(16):1425-35. PMID: #15324659# (...)

• lymphocyte migration
  1 December 2003

  References
  Reif K, Cyster J. The CDM protein DOCK2 in lymphocyte migration. Trends Cell Biol. 2002 Aug;12(8):368-73. PMID: #12191913#

• cell survival
  10 November 2003

  cellular survival

• cell cycle
  13 July 2003

  cellular cycle

• cell-cell adhesion
  14 March 2004

  Cell-cell adhesion involve transmembrane glycoproteins such as cell adhesion molecules and integrins, which are thought to function via interactions of their cytoplasmic domains with proteins associated with the cytoskeleton (as vinculin or talins).
  Cadherin-mediated cell-cell junctions
  The formation of cadherin-mediated cell-cell junctions is accompanied by a profound remodeling of the actin cytoskeleton.
  The Arp2/3 complex and its activator cortactin drive the assembly of branching (...)

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