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Levels of matrix metalloproteinases differ in plasma and serum - aspects regarding analysis of biological markers in cancer.

Journal article
Authors Andreas Jonsson
Claes Hjalmarsson
Peter Falk
Marie-Lois Ivarsson
Published in British journal of cancer
Volume 115
Issue 6
Pages 703-706
ISSN 1532-1827
Publication year 2016
Published at Institute of Clinical Sciences, Department of Surgery
Pages 703-706
Language en
Links dx.doi.org/10.1038/bjc.2016.127
Subject categories Surgery, Medical Laboratory Science

Abstract

Background: There are inconsistencies in the use of serum or plasma when analysing the matrix metalloproteinases (MMPs) as diagnostic or prognostic markers. The purpose of this study was to compare the concentration of MMP-1, -2, -7, -8, -9 and -13 in serum vs plasma samples. METHODS: Blood samples were obtained from sixty-five men and women. Samples were analysed for levels of MMPs in corresponding citrate plasma and serum. RESULTS: All MMPs expressed higher concentration in serum compared with plasma (P<0.01). There were no differences between genders. CONCLUSIONS: Present study demonstrated significant differences regarding concentrations of some MMPs using plasma vs serum. We conclude that future studies regarding MMPs as biological markers in cancer should consider the use of citrate plasma instead of serum.

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