ArticleHaematologica2012
Abnormal telomere shortening of peripheral blood mononuclear cells and granulocytes in patients with chronic idiopathic neutropenia.
Article in Haematologica, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed, 14 citations in OpenAlex.
- n-3 Fatty Acid Supplementation and Leukocyte Telomere Length in Patients with Chronic Kidney Disease.Nutrients · 2016Trial
- Shorter Granulocyte Telomeres Among Children and Adolescents With Perinatally Acquired Human Immunodeficiency Virus Infection and Chronic Lung Disease in Zimbabwe.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Article
- Differential expression of cell cycle and WNT pathway-related genes accounts for differences in the growth and differentiation potential of Wharton's jelly and bone marrow-derived mesenchymal stem cells.Stem cell research & therapy · 2017Article
- Transgenic rat model of childhood-onset dermatitis by overexpressing telomerase reverse transcriptase (TERT).Transgenic research · 2016Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChronic idiopathic neutropenia is characterized by immune-mediated suppression of neutrophil production. Because patients with immune-mediated bone marrow failure syndromes display age-inappropriate telomere shortening in leukocytes, we investigated telomere lengths in peripheral blood mononuclear cells and granulocytes of patients with chronic idiopathic neutropenia. DESIGN AND
methodsWe studied 37 patients with chronic idiopathic neutropenia and 68 age- and sex-matched healthy controls. Relative telomere length and telomerase reverse transcriptase expression were assessed by a quantitative real time polymerase chain reaction. Telomerase activity was determined by a polymerase chain reaction-based immunoassay.
resultsThe mean relative telomere values of peripheral blood mononuclear cells and granulocytes were significantly lower in patients compared to controls, and significantly lower than expected on the basis of the age-adjusted healthy control distribution. The difference in the relative telomere lengths between patients and controls in both peripheral blood mononuclear cells and granulocytes was prominent in those under the age of 50 years. Contrary to the peripheral blood mononuclear cells, in which an inverse correlation was observed between relative telomere values and age, no significant correlation was noted between granulocyte telomere values and patient age. A significant correlation was observed between individual relative telomere values and absolute neutrophil counts. There was no difference in expression of telomerase reverse transcriptase in peripheral blood mononuclear cells between patients and controls but telomerase activity was identified at a significantly higher frequency in controls than in patients. No correlation was found between telomerase activity or telomerase reverse transcriptase expression and relative telomere lengths of peripheral blood mononuclear cells.
conclusionsPatients with chronic idiopathic neutropenia display age-inappropriate telomere shortening of peripheral blood cells and low telomerase activity in peripheral blood mononuclear cells. A compensatory increased proliferation of bone marrow hematopoietic progenitor cells in association with lymphocyte replicative exhaustion probably account for these abnormalities.
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