Biomarkers and cell phenotypes in TB patients with minimal or persisting lung inflammation post-anti-TB treatment and ex-vivo atorvastatin immunomodulatory effects on M. tuberculosis-infected PBMC

Motaung, Bongani

Biomarkers and cell phenotypes in TB patients with minimal or persisting lung inflammation post-anti-TB treatment and ex-vivo atorvastatin immunomodulatory effects on M. tuberculosis-infected PBMC

Thesis / Dissertation

2024

Publisher

University of Cape Town

Department

Department of Pathology

Faculty

Faculty of Health Sciences

Abstract

Unresolved lung inflammation post-anti-TB treatment necessitates the evaluation of additional host-directed therapies (HDT). Statins, recognized for their pleiotropic effects, show potential as immunomodulators to reduce post-TB lung inflammation. The ongoing StatinTB clinical trial utilizes a double-blind, randomized, placebo-controlled approach post-anti-TB treatment to assess the safety and efficacy of atorvastatin in reducing post TB lung inflammation. At the end of TB treatment, Mtb culture-negative participants were stratified into minimal (Arm A, Total Lung Glycolysis (TLG) < 50 SUV) or persisting (Arm B/C, TLG ≥ 50 SUV) lung inflammation using Positron Emission Tomography/Computed Tomography (PET/CT) scan. Arm B/C received atorvastatin (40mg/day) or placebo for 12 weeks, and this data remains currently blinded. Study participants were evaluated for hematological, biochemical, and inflammatory parameters where ALP, proBNP, vitamin D, and CRP showed significant increases in Arm B/C compared to Arm A at