Now showing items 21-31 of 31

    • 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 ...
    • 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 ...
    • The Shortest Telomere, Not Average Telomere Length, Is Critical for Cell Viability and Chromosome Stability 

      Greider, Carol W.; Hao, Ling-Yang; Strong, Margaret A.; Hemann, Michael T. (Cell Press, 2001-10-05)
      Loss of telomere function can induce cell cycle arrest and apoptosis. To investigate the processes that trig- ger cellular responses to telomere dysfunction, we crossed mTR􏰀/􏰀 G6 mice that have short telomeres with mice ...
    • 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 ...
    • Telomere Dysfunction Increases Mutation Rate and Genomic Instability 

      Greider, Carol W.; Feldser, David M.; Hackett, Jennifer A. (Cell Press, 2001-08-10)
      The increased tumor incidence in telomerase null mice suggests that telomere dysfunction induces genetic instability. To test this directly, we examined mutation rate in the absence of telomerase in S. cerevisiae. The ...
    • 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 ...
    • Telomere Shortening and Tumor Formation by Mouse Cells Lacking Telomerase RNA 

      Greider, Carol W.; DePinho, Ronald A.; Lansdorp, Peter M.; Semper, Enrique; Hande, M. Prakash; Lee, Han-Woong; Blasco, Maria A. (Cell Press, 1997-10-03)
      To examine the role of telomerase in normal and neoplastic growth, the telomerase RNA component (mTR) was deleted from the mouse germline. mTR-/- mice lacked detectable telomerase activity yet were viable for the six ...
    • The Telomere Terminal Transferase of Tetrahymena Is a Ribonucleoprotein Enzyme with Two Kinds of Primer Specificity 

      Blackburn, Elizabeth H.; Greider, Carol W. (Cell Press, 1987-12-24)
      We have analyzed the de novo telomere synthesis catalyzed by the enzyme telomere terminal transferase (telomerase) from Tetrahymena. Oligonucleotides representing the G-rich strand of telomeric sequences from five different ...
    • Telomeres Do D-Loop–T-Loop 

      Greider, Carol W. (Cell Press, 1999-05-14)
    • Tracking Telomerase 

      Blackburn, Elizabeth H.; Greider, Carol W. (2004-01-23)
    • Wild-derived inbred mouse strains have short telomeres 

      Greider, Carol W.; Hemann, Michael T. (Oxford University Press, 2000-11-15)
      Telomere length and telomerase activity directly affect the replicative capacity of primary human cells. Some have suggested that telomere length influences organismal lifespan. We compared telomere length distributions ...