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Browsing by Subject "fibroblast"

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Now showing items 1-13 of 13

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    • Article  

      The A and B fragments of normal type I procollagen have a similar thermal stability to proteinase digestion but are selectively destabilized by structural mutations 

      Constantinou-Deltas, Constantinos D.; VOGEL, B. E.; JEFFREY, J. J.; PROCKOP, D. J. (1987)
      Previous studies demonstrated that the thermal stability of the procollagen triple helix can be assayed by digesting the protein for short periods with high concentrations of trypsin and chymotrypsin. Here we cleaved human ...

    • Article  

      Causes, consequences, and remedies for growth-induced solid stress in murine and human tumors 

      Stylianopoulos, T.; Martin, J. D.; Chauhan, V. P.; Jain, S. R.; Diop-Frimpong, B.; Bardeesy, N.; Smith, B. L.; Ferrone, C. R.; Hornicek, F. J.; Boucher, Y.; Munn, L. L.; Jain, R. K. (2012)
      The presence of growth-induced solid stresses in tumors has been suspected for some time, but these stresses were largely estimated using mathematical models. Solid stresses can deform the surrounding tissues and compress ...

    • Article  

      Defining the role of solid stress and matrix stiffness in cancer cell proliferation and metastasis 

      Kalli, M.; Stylianopoulos, T. (2018)
      Solid tumors are characterized by an abnormal stroma that contributes to the development of biomechanical abnormalities in the tumor microenvironment. In particular, these abnormalities include an increase in matrix stiffness ...

    • Article  

      Depletion of histone N-terminal-acetyltransferase Naa40 induces p53-independent apoptosis in colorectal cancer cells via the mitochondrial pathway 

      Pavlou, Demos; Kirmizis, Antonis (2016)
      Protein N-terminal acetylation is an abundant post-translational modification in eukaryotes implicated in various fundamental cellular and biochemical processes. This modification is catalysed by evolutionarily conserved ...

    • Article  

      Direct conversion of mouse embryonic fibroblasts into functional keratinocytes through transient expression of pluripotency-related genes 

      Iacovides, D.; Rizki, G.; Lapathitis, Georgios; Strati, K. (2016)
      The insufficient ability of specialized cells such as neurons, cardiac myocytes, and epidermal cells to regenerate after tissue damage poses a great challenge to treat devastating injuries and ailments. Recent studies ...

    • Article  

      Evidence that a metabolilte of equine estrogens, 4-hydroxyequilenin, induces cellular transformation in vitro 

      Pisha, E.; Lui, X.; Constantinou, Andreas I.; Bolton, J. L. (2001)
      Estrogen replacement therapy has been correlated with an increased risk of developing hormone-dependent cancers. 4-Hydroxyequilenin (4-OHEN) is a catechol metabolite of equilenin and equilin which are components of the ...

    • Article  

      FAK transduces extracellular forces that orient the mitotic spindle and control tissue morphogenesis 

      Petridou, Nicoletta I.; Skourides, Paris A. (2014)
      Spindle orientation is critical for proper morphogenesis of organs and tissues as well as for the maintenance of tissue morphology. Although significant progress has been made in understanding the mechanisms linking the ...

    • Article  

      The Ink4/Arf locus is a barrier for iPS cell reprogramming 

      Li, H.; Collado, M.; Villasante, A.; Strati, K.; Ortega, S.; Cãamero, M.; Blasco, M. A.; Serrano, M. (2009)
      The mechanisms involved in the reprogramming of differentiated cells into induced pluripotent stem (iPS) cells by the three transcription factors Oct4 (also known as Pou5f1), Klf4 and Sox2 remain poorly understood. The ...

    • Article  

      KIF2β, a new kinesin superfamily protein in non-neuronal cells, is associated with lysosomes and may be implicated in their centrifugal translocation 

      Santama, Niovi; Krijnse-Ĺocker, J.; Griffiths, G.; Noda, Y.; Hirokawa, N.; Dotti, C. G. (1998)
      Lysosomes concentrate juxtanuclearly in the region around the microtubule-organizing center by interaction with microtubules. Different experimental and physiological conditions can induce these organelles to move to the ...

    • Article  

      Role of TGFβ in regulation of the tumor microenvironment and drug delivery (review) 

      Papageorgis, P.; Stylianopoulos, T. (2015)
      Deregulation of cell signaling homeostasis is a predominant feature of cancer initiation and progression. Transforming growth factor β (TGFβ) is a pleiotropic cytokine, which regulates numerous biological processes of ...

    • Article  

      A single base mutation that converts glycine 907 of the α2(I) chain of type I procollagen to aspartate in a lethal variant of osteogenesis imperfecta. The single amino acid substitution near the carboxyl terminus destabilizes the whole triple helix 

      Baldwin, C. T.; Constantinou-Deltas, Constantinos D.; Dumars, K. W.; Prockop, D. J. (1989)
      Type I procollagen was examined in cultured skin fibroblasts from a patient with a lethal variant of osteogenesis imperfecta. About half of the pro-α chains were post-translationally overmodified and had a decreased thermal ...

    • Article  

      Sonic-hedgehog pathway inhibition normalizes desmoplastic tumor microenvironment to improve chemo- and nanotherapy 

      Mpekris, F.; Papageorgis, P.; Polydorou, C.; Voutouri, C.; Kalli, M.; Pirentis, A. P.; Stylianopoulos, T. (2017)
      Targeting the rich extracellular matrix of desmoplastic tumors has been successfully shown to normalize collagen and hyaluronan levels and re-engineer intratumoral mechanical forces, improving tumor perfusion and chemotherapy. ...

    • Article  

      Substitutions for glycine α1-637 and glycine α2-694 of type I procollagen in lethal osteogenesis imperfecta: The conformational strain on the triple helix introduced by a glycine substitution can be transmitted along the helix 

      Tsuneyoshi, T.; Westerhausen, A.; Constantinou-Deltas, Constantinos D.; Prockop, D. J. (1991)
      Two substitutions for glycine in the triple-helical domain were found in type I procollagen synthesized by skin fibroblasts from two probands with lethal osteogenesis imperfecta. One was a substitution of valine for glycine ...

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