What question did this study set out to answer?

This study aims to explore how cell proliferation and cell death relate to changes in specific mRNA levels in stimulated lymphocytes.

April 27, 2026Open Access

Studies on the Relationship Between Cell-Proliferation and Cell-Death - Opposite Patterns of SGP-2 and Ornithine Decarboxylase Messenger-Rna Accumulation in Pha-Stimulated Human-Lymphocytes

Key Points

This study aims to explore how cell proliferation and cell death relate to changes in specific mRNA levels in stimulated lymphocytes.
Lymphocytes from human peripheral blood were stimulated with phytohemagglutinin (PHA).
mRNA levels of sulfated glycoprotein 2 (SGP-2) and ornithine decarboxylase (ODC) were measured 2-6 hours post-stimulation.
A comparison was made between mRNA accumulation patterns of SGP-2 and ODC.
SGP-2 mRNA levels were consistent in resting lymphocytes but showed a progressive decrease upon PHA stimulation.
ODC mRNA levels increased in parallel with the decrease in SGP-2 mRNA, indicating cellular changes during activation.

Abstract

To assess the relationship between cell proliferation and cell death, the mRNA accumulation of ornithine decarboxylase (ODC)and sulfated glycoprotein 2 (SGP-2) were measured in human peripheral blood lymphocytes (HPBL), 2-6 hours after stimulation with phytohemoagglutinin (PHA). A consistent amount of SGP-2 mRNA in quiescent HPBL, an early and progressive decrease of SGP-2 mRNA and a parallel increase of ODC mRNA accumulation, were observed, in PHA-stimulated HPBL, suggesting that concomitant repression of SGP-2 and induction of ODC genes contribute for the cell entering the cell cycle.

Studies on the Relationship Between Cell-Proliferation and Cell-Death - Opposite Patterns of SGP-2 and Ornithine Decarboxylase Messenger-Rna Accumulation in Pha-Stimulated Human-Lymphocytes

Key Points

Abstract

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