Detection of mature MPO and pro-MPO in plasma using affinity-purification and immunblot analysis (original) (raw)

2018

Abstract

<p><b>A)</b> Plasma was spiked with MPO standard (10 nM) and HL60 cell lysate (containing 10 nM MPO) and subjected to affinity purification. Purified samples along with MPO, pro-MPO standards and HL-60 lysates were separated by 10% SDS/PAGE, transferred to PVDF and probed with MPO-specific antibody. <b>B)</b> Neutrophils (5x10⁶ cells/ml) were added back into plasma and then stimulated with CytB and FMLP for 30 min at 37°C. Neutrophils were centrifuged and cell free plasma MPO was subjected to affinity purification and analyzed as described in A. After the ECL fluorescence of blots was developed, a photograph of the blot showing the molecular weight markers was taken and aligned with the fluorescence image as indicated by the black line.</p

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