Telomere length analysis on cord blood cells by the flow-FISH method

Nóra Regéczy, Sándor Valent, Luca Kormos, Melinda Hajdu, Laszlo Gopcsa, K. Pálóczi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Telomerase is the enzyme responsible for synthesizing telomeric repeats at the ends of chromosomes to maintain telomere length. Recent studies have suggested that telomere shortening may serve as a surrogate marker of the progression of malignant disorders and seems to be accelerated in allogeneic bone marrow transplant recipients. In this study, the results of the telomere length of nine cord blood mononuclear cell samples are presented. Telomere length was measured by the flow-FISH method, using a peptide nucleic acid probe. The proportion of cord blood cell subsets (CD19/CD34/CD3) was also evaluated. The telomere length of the internal control 1301 cell line was estimated to be 100%. The mean telomere length of cord blood cells was 18.5 ± 3.9%, compared with the internal control. The progenitor CD34+ cells were detected as 2.6 ± 0.7% in the lymphoid gate measured. Linear correlation analysis did not find any connection between the cell subsets (CD3+, CD34+, CD19+) and the telomere length. The findings confirm that the telomere flow-FISH method is sufficient for estimation of the telomere length. Assessment of the current procedures of collection, manipulation, and ex vivo expansion of cord blood cells in terms of their effect on telomere shortening might be important.

Original languageEnglish
Pages (from-to)265-269
Number of pages5
JournalHaematologia
Volume32
Issue number3
DOIs
Publication statusPublished - 2002

Fingerprint

Telomere
Fetal Blood
Blood Cells
Telomere Shortening
Nucleic Acid Probes
Peptide Nucleic Acids
Telomerase
Stem Cells
Chromosomes
Biomarkers
Bone Marrow
Cell Line
Enzymes

Keywords

  • Cord blood
  • Flow-FISH
  • Telomere length

ASJC Scopus subject areas

  • Hematology

Cite this

Telomere length analysis on cord blood cells by the flow-FISH method. / Regéczy, Nóra; Valent, Sándor; Kormos, Luca; Hajdu, Melinda; Gopcsa, Laszlo; Pálóczi, K.

In: Haematologia, Vol. 32, No. 3, 2002, p. 265-269.

Research output: Contribution to journalArticle

Regéczy, N, Valent, S, Kormos, L, Hajdu, M, Gopcsa, L & Pálóczi, K 2002, 'Telomere length analysis on cord blood cells by the flow-FISH method', Haematologia, vol. 32, no. 3, pp. 265-269. https://doi.org/10.1163/15685590260461075
Regéczy, Nóra ; Valent, Sándor ; Kormos, Luca ; Hajdu, Melinda ; Gopcsa, Laszlo ; Pálóczi, K. / Telomere length analysis on cord blood cells by the flow-FISH method. In: Haematologia. 2002 ; Vol. 32, No. 3. pp. 265-269.
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