Scientific article

Repression of nuclear lamin A and C gene expression in human acute lymphoblastic leukemia and non-Hodgkin's lymphoma cells

Published inLeukemia Research, vol. 14, no. 9, p. 815-821
Publication date1990

The lamins A, B and C which are differentially expressed during ontogenesis and differentiation are karyoskeletal proteins forming a polymeric meshwork at the inner nuclear membrane. Using Northern blot analyses we investigated the steady state levels of the three lamin specific RNA transcripts in neoplastic cells derived from 16 untreated patients with acute lymphoblastic leukemia (ALL) or non-Hodgkin's lymphoma (NHL) and in ALL and NHL established cell lines. Whereas lamin B mRNA was present in all, lamin A and C transcripts were observed in none of the malignant cell samples except one of a common-ALL patient (precursor B-ALL, cytoplasmic μ chain negative). All three lamin mRNAs were detected in normal peripheral blood lymphocytes, however, only after mitogenic stimulation with concanavalin A. Our results provide evidence that expression of lamin A and C is repressed in neoplastic blast cells derived from patients with ALL or NHL and suggest that lamin A and C gene repression is not related to cell proliferation but might be relevant to the differentiated stages of the lymphoid cells in vivo.

  • Human acute lymphoblastic leukemia
  • Lamin gene expression
  • Nuclear proteins
Citation (ISO format)
STADELMANN, Barbara et al. Repression of nuclear lamin A and C gene expression in human acute lymphoblastic leukemia and non-Hodgkin’s lymphoma cells. In: Leukemia Research, 1990, vol. 14, n° 9, p. 815–821. doi: 10.1016/0145-2126(90)90076-L
Main files (1)
Article (Published version)
ISSN of the journal0145-2126

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