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. Author manuscript; available in PMC: 2023 Feb 25.
Published in final edited form as: Toxicol Appl Pharmacol. 2020 Oct 5;409:115272. doi: 10.1016/j.taap.2020.115272

Table 1.

Inflammatory Mediators and Pulmonary Fibrosis.

Inflammatory mediators Source Actions Toxicant References
OXIDANTS
ROS/RNS Macrophages, Neutrophils, Eosinophils Epithelial cells, Myofibroblasts Epithelial damage, production of MMP, TGFβ, and ECM Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Anscher et al., 2008; Bai et al., 2018; Castranova et al., 2002; Cheresh et al., 2013; Duke and Bonner, 2018; Kamp, 2009; Kawasaki, 2015; Liu et al., 2013; Malaviya et al., 2012; Murthy et al., 2015; Shukla et al., 2003; Shvedova et al., 2008; Williamson et al., 2015
PROTEASES/INHIBITORS
MMP-2, MMP-9, MMP-10, MMP-12, MMP-13 Epithelial cells, Neutrophils, Macrophages, Endothelial cells, Fibroblasts, Fibrocytes ECM degradation, inflammation, aberrant epithelial repair, EMT Bleomycin, Asbestos, Nanoparticles, Radiation, Mustard vesicants Jin et al., 2019; Kolahian et al., 2016; Ma et al., 2012; Malaviya et al., 2010; Qin et al., 2017; Shukla et al., 2007; Venosa et al., 2016; Williamson et al., 2015; Yang et al., 2007; Zuo et al., 2017
TIMP-1, TIMP-2 Macrophages, Fibroblasts, Myofibroblasts ECM degradation, lung remodeling Bleomycin, Silica, Nanoparticles Dong and Ma, 2017; Jin et al., 2014; Ma et al., 2012; Qin et al., 2017; Wollin et al., 2014; Zuo et al., 2017
CYTOKINES
TNFα Macrophages, Lymphocytes, Epithelial cells, Endothelial cells Production of TGFβ, IL-1, IL-6, CXCL8, CCL2, PDGF, GM-CSF, and ECM, fibroblast proliferation, myofibroblast differentiation Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Bai et al., 2018; Barbarin et al., 2005a; Castranova et al., 2002; Dong and Ma, 2017; Dong et al., 2015; Duke and Bonner, 2018; Hou et al., 2018; Jiang et al., 2015; Kawasaki, 2015; Lakatos et al., 2006; Malaviya et al., 2015; Mishra et al., 2012; Murthy et al., 2015; Qin et al., 2017; Shvedova et al., 2008; Sugimoto et al., 2019; Williamson et al., 2015; Wollin et al., 2014
IL-1 Macrophages, Epithelial cells Inflammation, fibroblast proliferation, production of IL-6, TNFα, TGFβ, PDGF, and ECM Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Castranova et al., 2002; Chaudhary et al., 2006; Dong et al., 2015; Duke and Bonner, 2018; Haegens et al., 2007; Hoshino et al., 2009; Jiang et al., 2015; Jin et al., 2019; Kolahian et al., 2016; Mishra et al., 2012; Murthy et al., 2015; Nikota et al., 2017; Qin et al., 2017; Re et al., 2014; Shukla et al., 2007; Sugimoto et al., 2019; van den Brule et al., 2014; Wigenstam et al., 2009; Williamson et al., 2015; Wilson et al., 2010; Wollin et al., 2014
IL-6 Macrophages, Monocytes, T cells Inflammation Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Bai et al., 2018; Chaudhary et al., 2006; Dong et al., 2015; Duke and Bonner, 2018; Haegens et al., 2007; Jin et al., 2019; Mishra et al., 2012; Nikota et al., 2017; Shukla et al., 2007; Shvedova et al., 2008; Sugimoto et al., 2019; van den Brule et al., 2014; Wigenstam et al., 2009; Wollin et al., 2014
IL-13 Epithelial cells, Macrophages, Endothelial cells, T cells Profibrotic macrophage activation, ECM production Bleomycin, Silica, Asbestos, Radiation, Mustard vesicants Chung et al., 2016; Ferreira et al., 2013; Jin et al., 2019; Kolahian et al., 2016; Liu et al., 2004; Lumsden et al., 2015; Shukla et al., 2007; Weinberger et al., 2016; Zhao et al., 2018
IL-17A T cells, Macrophages, Neutrophils EMT, production of ECM Bleomycin, Silica, Mustard vesicants Chen et al., 2014; Kolahian et al., 2016; Mi et al., 2011; Mishra et al., 2012; Re et al., 2014; Wilson et al., 2010
GROWTH FACTORS
TGFβ Macrophages, Epithelial cells, Endothelial cells, Myofibroblasts Monocyte, and fibroblast recruitment, and activation, myofibroblast differentiation, EMT, production of ROS, and ECM Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Anscher et al., 2008; Chaudhary et al., 2006; Dong and Ma, 2017; Dong et al., 2015; Duke and Bonner, 2018; Jiang et al., 2015; Kolahian et al., 2016; Lakatos et al., 2006; Ma et al., 2017; Ma et al., 2012; McGraw et al., 2018; Mishra et al., 2012; Murthy et al., 2015; Nikota et al., 2017; Qin et al., 2017; Re et al., 2014; Shvedova et al., 2008; Sugimoto et al., 2019
PDGF Macrophages, Fibroblasts, Epithelial cells, Endothelial cells Myofibroblast, and fibroblast proliferation Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Abdollahi et al., 2005; Dong et al., 2015; Duke and Bonner, 2018; Kolahian et al., 2016; Li et al., 2006; Liu and Brody, 2001; McGraw et al., 2018; Re et al., 2014; Sugimoto et al., 2019; Williamson et al., 2015; Wollin et al., 2014; Wollin et al., 2015
CTGF Macrophages, Myofibroblasts Myofibroblast proliferation, and activation Bleomycin, Radiation, Mustard vesicants Bickelhaupt et al., 2017; Jiang et al., 2015; Lipson et al., 2012; Mishra et al., 2012; Venosa et al., 2016; Williamson et al., 2015
CHEMOKINES
CCL2, CCL3, CCL4, CCL5, CCL17, CCL22 Macrophages, Epithelial cells, Lymphocytes, Fibroblasts, Endothelial cells Monocyte, lymphocyte, and fibroblast recruitment, myofibroblast differentiation, angiogenesis, ECM production Bleomycin, Silica, Asbestos, Nanoparticles, Radiation, Mustard vesicants Baran et al., 2007; Belperio et al., 2004; Dymacek et al., 2018; Haegens et al., 2007; Inoue et al., 2004; Mishra et al., 2012; Mukherjee et al., 2018; Nikota et al., 2017; Shukla et al., 2007; Sugimoto et al., 2019; Venosa et al., 2016; Williamson et al., 2015
CXCL1, CXCL2, CXCL6, CXCL12, CX3CL1 Monocytes, Macrophages, Epithelial cells, Fibroblasts Neutrophil, and fibroeyte recruitment, fibroblast production of CTGF, angiogenesis Bleomycin, Silica, Nanoparticles, Mustard vesicants Besnard et al., 2013; Kawasaki, 2015; Lakatos et al., 2006; Mishra et al., 2012; Morimoto et al., 2013; Nikota et al., 2017; Phillips et al., 2004; Shukla et al., 2007; Sugimoto et al., 2019; Venosa et al., 2016; Wollin et al., 2014

Abbreviations: CCL, C-C chemokine ligand; CXCL, C-X-C chemokine ligand; CTGF, connective tissue growth factor; ECM, extracellular matrix; EMT, epithelial mesenchymal transition; GM-CSF, granulocyte-macrophage colony stimulating factor; IL, interleukin; MMP, matrix metalloproteinase; PDGF, platelet-derived growth factor; ROS, reactive oxygen species; SMA, smooth muscle actin; TGF, tumor growth factor; TIMP, tissue inhibitors of metalloproteinases; TNF, tumor necrosis factor.