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Elevated Plasma Matrix Metalloproteinase 8 Associates With Sputum Culture Positivity in Pulmonary Tuberculosis

Walker, Naomi ORCID:, Karim, F, Moosa, M Y S, Moodley, S, Mazibuko, M, Khan, K, Sterling, T R, van der Heijden, Y F, Grant, A D, Elkington, P T, Pym, A and Leslie, A (2022) 'Elevated Plasma Matrix Metalloproteinase 8 Associates With Sputum Culture Positivity in Pulmonary Tuberculosis'. Journal of Infectious Disease, Vol 226, Issue 5, pp. 928-932.

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Current methods for tuberculosis treatment monitoring are suboptimal. We evaluated plasma matrix metalloproteinase (MMP) and procollagen III N-terminal propeptide concentrations before and during tuberculosis treatment as biomarkers. Plasma MMP-1, MMP-8, and MMP-10 concentrations significantly decreased during treatment. Plasma MMP-8 was increased in sputum Mycobacterium tuberculosis culture–positive relative to culture-negative participants, before (median, 4993 pg/mL [interquartile range, 2542–9188] vs 698 [218–4060] pg/mL, respectively; P = .004) and after (3650 [1214–3888] vs 720 [551–1321] pg/mL; P = .008) 6 months of tuberculosis treatment. Consequently, plasma MMP-8 is a potential biomarker to enhance tuberculosis treatment monitoring and screen for possible culture positivity.

Item Type: Article
Subjects: QU Biochemistry > Proteins. Amino Acids. Peptides > QU 55 Proteins
QY Clinical Pathology > Diagnostic Tests > QY 120 Sputum
WF Respiratory System > Tuberculosis > WF 220 Diagnosis. Prognosis
WF Respiratory System > Tuberculosis > WF 300 Pulmonary tuberculosis
WH Hemic and Lymphatic Systems > Hematologic Diseases. Immunologic Factors. Blood Banks > WH 400 Fluid elements. Plasma. Serum. Blood proteins. Blood protein disorders
Faculty: Department: Clinical Sciences & International Health > Clinical Sciences Department
Digital Object Identifer (DOI):
Depositing User: Clare Bennett
Date Deposited: 15 Aug 2022 14:48
Last Modified: 14 Jun 2023 11:02


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