<i>TSPO</i> mRNA expression of monocytes compared to MDM.

<p><b>(A)</b> THP-1 monocytes and THP-1 MDM; <b>(B)</b> healthy peripheral blood monocytes and corresponding MDM <b>(C)</b> synovial fluid monocytes and corresponding MDM. Results are expressed as fold change mRNA expression (compared to <i>18s</i> RNA). Each experiment was run in triplicate, with data expressed as mean ± SEM of five independent experiments. Relative <i>TSPO</i> mRNA expression in MDM was compared to their respective monocyte counterpart whereby statistically significant differences are noted as **p<0.001 using Student’s <i>t</i>-test.