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Updated: Sep 29, 2026

Isolation of Murine Peritoneal Macrophages to Carry Out Gene Expression Analysis Upon Toll-like Receptors Stimulation
Published on: April 29, 2015
Molecular cloning and posttranscriptional regulation of macrophage inflammatory protein-1 alpha in alveolar
M M Shi1, J J Godleski, J D Paulauskis
1Department of Environmental Health, Harvard School of Public Health, Boston, MA 02115, USA.
Abstract:
Macrophage inflammatory protein-1 alpha (MIP-1 alpha) belongs to the "chemokine" superfamily of chemoattractant pro-inflammatory cytokines. MIP-1 alpha is chemotactic for monocytes and neutrophils and thus, plays an important role in initiation and control of inflammation. We have isolated and sequenced a cDNA clone encoding rat MIP-1 alpha. This 0.75 kb cDNA includes a single open reading frame of 92 amino acids. Expression of MIP-1 alpha mRNA was characterized in NR8383, a rat alveolar macrophage cell line (RAM). In resting RAM cells, MIP-1 alpha mRNA decayed rapidly, with a half life of less than 2 hours. Lipopolysaccharide (LPS) treatment of RAM cells resulted in a dose-dependent increase in MIP-1 alpha steady state mRNA expression. The induction of MIP-1 alpha mRNA by LPS was partially the result of mRNA stabilization, as half life increased to over 6 hours.

