Now showing items 21-31 of 31

    • Telomere dysfunction triggers developmentally regulated germ cell apoptosis 

      Greider, Carol W.; Chin, Lynda; DePinho, Ronald A.; Strong, Margaret A.; Rudolph, Karl Lenhard; Hemann, Michael T. (American Society for Cell Biology, 2001-07)
      Telomere dysfunction results in fertility defects in a number of organisms. Although data from fission yeast and Caenorhabditis elegans suggests that telomere dysfunction manifests itself primarily as defects in proper ...
    • A critical stem-loop structure in the CR4-CR5 domain of mammalian telomerase RNA 

      Greider, Carol W.; Opperman, Kay Keyer; Chen, Jiunn-Liang (Oxford University Press, 2002-01-15)
      Telomerase is an enzyme that maintains telomere length by adding telomeric sequence repeats onto chromosome ends. The telomerase ribonucleoprotein complex consists of two essential components, a reverse transcriptase and ...
    • Short telomeres induce a DNA damage response in Saccharomyces cerevisiae 

      Greider, Carol W.; IJipma, Arne S. (American Society for Cell Biology, 2003-03)
      Telomerase-deficient Saccharomyces cerevisiae cells show a progressive decrease in telomere length. When grown for several days in log phase, the tlc1Delta cells initially display wild-type growth kinetics with subsequent ...
    • Short telomeres and ataxia-telangiectasia mutated deficiency cooperatively increase telomere dysfunction and suppress tumorigenesis 

      Armanios, Mary; Qi, Ling; Strong, Margaret A.; Karim, Baktiar O.; Greider, Carol W.; Huso, David L. (American Association of Cancer Research, 2003-12-01)
      To examine the role of ataxia-telangiectasia mutated (Atm) in telomere function, we generated Atm and telomerase null mice (Atm(-/-) mTR(-/-) iG6 mice). These mice exhibited increased germ cell death and chromosome fusions ...
    • Tracking Telomerase 

      Blackburn, Elizabeth H.; Greider, Carol W. (2004-01-23)
    • Phosphorylation of H2AX at short telomeres in T cells and fibroblasts 

      Greider, Carol W.; Strong, Margaret A.; Hao, Ling-Yang (American Society for Biochemistry and Molecular Biology, 2004-10-22)
      Eukaryotic cells undergo arrest and enter apoptosis in response to short telomeres. T cells from late generation mTR(-/-) mice that lack telomerase show increased apoptosis when stimulated to enter the cell cycle. The ...
    • Short Telomeres, even in the Presence of Telomerase, Limit Tissue Renewal Capacity 

      Greider, Carol W.; Huso, David; Feldser, David M.; Karim, Baktiar; Strong, Margaret A.; Armanios, Mary; Hao, Ling-Yang (Cell Press, 2005-12-16)
      Autosomal-dominant dyskeratosis congenita is associated with heterozygous mutations in telomerase. To examine the dosage effect of telomerase, we generated a line of mTR+/ÿ mice on the CAST/EiJ background, which has short ...
    • Telomerase mutations in families with idiopathic pulmonary fibrosis 

      Loyd, James E.; Greider, Carol W.; Lansdorp, Peter M.; Phillips, John A., III; Vulto, Irma; Xie, Mingyi; Lawson, William E.; Markin, Cheryl; Ingersoll, Roxann G.; Alder, Jonathan K.; Cogan, Joy D.; Chen, Julian J.-L.; Armanios, Mary Y. (Massachusetts Medical Society, 2007-03-29)
      BACKGROUND: Idiopathic pulmonary fibrosis is progressive and often fatal; causes of familial clustering of the disease are unknown. Germ-line mutations in the genes hTERT and hTR, encoding telomerase reverse transcriptase ...
    • Short Telomeres Limit Tumor Progression In Vivo by Inducing Senescence 

      Greider, Carol W.; Feldser, David M. (Cell Press, 2007-05)
      Telomere maintenance is critical for cancer progression. To examine mechanisms of tumor suppression induced by short telomeres, we crossed mice deficient for the RNA component of telomerase, mTR(-/-), with Emu-myc transgenic ...