Abstract
Pannexins constitute a relatively new family of transmembrane proteins that form channels linking the cytoplasmic compartment with the extracellular environment. The presence of pannexin1 in the liver has been documented previously, where it underlies inflammatory responses, such as those occurring upon ischemia–reperfusion injury. In the present study, we investigated whether pannexin1 plays a role in acute drug-induced liver toxicity. Hepatic expression of pannexin1 was characterized in a mouse model of acetaminophen-induced hepatotoxicity. Subsequently, mice were overdosed with acetaminophen followed by treatment with the pannexin1 channel inhibitor 10Panx1. Sampling was performed 1, 3, 6, 24 and 48 h after acetaminophen administration. Evaluation of the effects of pannexin1 channel inhibition was based on a number of clinically relevant readouts, including protein adduct formation, measurement of aminotransferase activity and histopathological examination of liver tissue as well as on a series of markers of inflammation, oxidative stress and regeneration. Although no significant differences were found in histopathological analysis, pannexin1 channel inhibition reduced serum levels of alanine and aspartate aminotransferase. This was paralleled by a reduced amount of neutrophils recruited to the liver. Furthermore, alterations in the oxidized status were noticed with upregulation of glutathione levels upon suppression of pannexin1 channel opening. Concomitant promotion of regenerative activity was detected as judged on increased proliferating cell nuclear antigen protein quantities in 10Panx1-treated mice. Pannexin1 channels are important actors in liver injury triggered by acetaminophen. Inhibition of pannexin1 channel opening could represent a novel approach for the treatment of drug-induced hepatotoxicity.
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Abbreviations
- ALT:
-
Alanine aminotransferase
- ANOVA:
-
Analysis of variance
- APAP:
-
Acetaminophen
- ASC:
-
Apoptosis-associated speck-like protein containing a C-terminal caspase-recruitment domain
- AST:
-
Aspartate aminotransferase
- ATP:
-
Adenosine triphosphate
- Casp1:
-
Caspase1
- CD:
-
Cluster of differentiation
- ELISA:
-
Enzyme-linked immunosorbent assay
- Gly:
-
Glycosylated
- GSH:
-
Glutathione
- GSSG:
-
Glutathione disulfide
- IFNγ:
-
Interferon γ
- IL-1β/6/10/18:
-
Interleukin 1β/6/10/18
- n :
-
Number of repeats
- Nalp3:
-
NACHT, LRR, and pyrin domain-containing protein 3
- NAPQI:
-
N-acetyl-p-benzoquinone imine
- p :
-
Probability
- Panx:
-
Pannexin
- PCNA:
-
Proliferating cell nuclear antigen
- RT-qPCR:
-
Reverse transcription quantitative real-time polymerase chain reaction
- SEM:
-
Standard error of the mean
- TBS/T:
-
Tris-buffered saline solution containing 0.1% Tween-20
- TNFα:
-
Tumor necrosis factor α
References
Antoine DJ et al (2009) High-mobility group box-1 protein and keratin-18, circulating serum proteins informative of acetaminophen-induced necrosis and apoptosis in vivo. Toxicol Sci 112:521–531
Bajt ML, Lawson JA, Vonderfecht SL, Gujral JS, Jaeschke H (2000) Protection against Fas receptor-mediated apoptosis in hepatocytes and nonparenchymal cells by a caspase-8 inhibitor in vivo: evidence for a postmitochondrial processing of caspase-8. Toxicol Sci 58:109–117
Bajt ML, Knight TR, Farhood A, Jaeschke H (2003) Scavenging peroxynitrite with glutathione promotes regeneration and enhances survival during acetaminophen-induced liver injury in mice. J Pharmacol Exp Ther 307:67–73
Bao L, Locovei S, Dahl G (2004) Pannexin membrane channels are mechanosensitive conduits for ATP. FEBS Lett 572:65–68
Bao Y, Chen Y, Ledderose C, Li L, Junger WG (2013) Pannexin 1 channels link chemoattractant receptor signaling to local excitation and global inhibition responses at the front and back of polarized neutrophils. J Biol Chem 288:22650–22657
Blazka ME, Wilmer JL, Holladay SD, Wilson RE, Luster MI (1995) Role of proinflammatory cytokines in acetaminophen hepatotoxicity. Toxicol Appl Pharmacol 133:43–52
Boassa D, Ambrosi C, Qiu F, Dahl G, Gaietta G, Sosinsky G (2007) Pannexin1 channels contain a glycosylation site that targets the hexamer to the plasma membrane. J Biol Chem 282:31733–31743
Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72:248–254
Brough D, Pelegrin P, Rothwell NJ (2009) Pannexin-1-dependent caspase-1 activation and secretion of IL-1beta is regulated by zinc. Eur J Immunol 39:352–358
Bruzzone R, Hormuzdi SG, Barbe MT, Herb A, Monyer H (2003) Pannexins, a family of gap junction proteins expressed in brain. Proc Natl Acad Sci USA 100:13644–13649
Celetti SJ, Cowan KN, Penuela S, Shao Q, Churko J, Laird DW (2010) Implications of pannexin 1 and pannexin 3 for keratinocyte differentiation. J Cell Sci 123:1363–1372
Chekeni FB et al (2010) Pannexin 1 channels mediate ‘find-me’ signal release and membrane permeability during apoptosis. Nature 467:863–867
Cisneros-Mejorado A et al (2015) Blockade of P2X7 receptors or pannexin-1 channels similarly attenuates postischemic damage. J Cereb Blood Flow Metab 35:843–850
Connolly MK et al (2011) Dendritic cell depletion exacerbates acetaminophen hepatotoxicity. Hepatology 54:959–968
Cover C, Liu J, Farhood A, Malle E, Waalkes MP, Bajt ML, Jaeschke H (2006) Pathophysiological role of the acute inflammatory response during acetaminophen hepatotoxicity. Toxicol Appl Pharmacol 216:98–107
Csak T, Ganz M, Pespisa J, Kodys K, Dolganiuc A, Szabo G (2011) Fatty acid and endotoxin activate inflammasomes in mouse hepatocytes that release danger signals to stimulate immune cells. Hepatology 54:133–144
Dahlin DC, Miwa GT, Lu AY, Nelson SD (1984) N-acetyl-p-benzoquinone imine: a cytochrome P-450-mediated oxidation product of acetaminophen. Proc Natl Acad Sci USA 81:1327–1331
Elliott MR et al (2009) Nucleotides released by apoptotic cells act as a find-me signal to promote phagocytic clearance. Nature 461:282–286
Ganz M, Csak T, Nath B, Szabo G (2011) Lipopolysaccharide induces and activates the Nalp3 inflammasome in the liver. World J Gastroenterol 17:4772–4778
Gujral JS, Knight TR, Farhood A, Bajt ML, Jaeschke H (2002) Mode of cell death after acetaminophen overdose in mice: apoptosis or oncotic necrosis? Toxicol Sci 67:322–328
Gulbransen BD et al (2012) Activation of neuronal P2X7 receptor-pannexin-1 mediates death of enteric neurons during colitis. Nat Med 18:600–604
Ichai P, Samuel D (2011) Epidemiology of liver failure. Clin Res Hepatol Gastroenterol 35:610–617
Imaeda AB et al (2009) Acetaminophen-induced hepatotoxicity in mice is dependent on Tlr9 and the Nalp3 inflammasome. J Clin Invest 119:305–314
Ishida Y, Kondo T, Ohshima T, Fujiwara H, Iwakura Y, Mukaida N (2002) A pivotal involvement of IFN-gamma in the pathogenesis of acetaminophen-induced acute liver injury. FASEB J 16:1227–1236
Ishida Y, Kondo T, Kimura A, Tsuneyama K, Takayasu T, Mukaida N (2006) Opposite roles of neutrophils and macrophages in the pathogenesis of acetaminophen-induced acute liver injury. Eur J Immunol 36:1028–1038
Iwamoto T, Nakamura T, Doyle A, Ishikawa M, de Vega S, Fukumoto S, Yamada Y (2010) Pannexin 3 regulates intracellular ATP/cAMP levels and promotes chondrocyte differentiation. J Biol Chem 285:18948–18958
Jaeschke H (1990) Glutathione disulfide formation and oxidant stress during acetaminophen-induced hepatotoxicity in mice in vivo: the protective effect of allopurinol. J Pharmacol Exp Ther 255:935–941
Jaeschke H, Mitchell JR (1990) Use of isolated perfused organs in hypoxia and ischemia/reperfusion oxidant stress. Methods Enzymol 186:752–759
Jaeschke H, Williams CD, Ramachandran A, Bajt ML (2012) Acetaminophen hepatotoxicity and repair: the role of sterile inflammation and innate immunity. Liver Int 32:8–20
James LP, Kurten RC, Lamps LW, McCullough S, Hinson JA (2005) Tumour necrosis factor receptor 1 and hepatocyte regeneration in acetaminophen toxicity: a kinetic study of proliferating cell nuclear antigen and cytokine expression. Basic Clin Pharmacol Toxicol 97:8–14
Jollow DJ, Mitchell JR, Potter WZ, Davis DC, Gillette JR, Brodie BB (1973) Acetaminophen-induced hepatic necrosis. II. Role of covalent binding in vivo. J Pharmacol Exp Ther 187:195–202
Kim HY, Kim SJ, Lee SM (2015) Activation of NLRP3 and AIM2 inflammasomes in Kupffer cells in hepatic ischemia/reperfusion. FEBS J 282:259–270
Knight TR, Kurtz A, Bajt ML, Hinson JA, Jaeschke H (2001) Vascular and hepatocellular peroxynitrite formation during acetaminophen toxicity: role of mitochondrial oxidant stress. Toxicol Sci 62:212–220
Lawson JA, Farhood A, Hopper RD, Bajt ML, Jaeschke H (2000) The hepatic inflammatory response after acetaminophen overdose: role of neutrophils. Toxicol Sci 54:509–516
Le Vasseur M, Lelowski J, Bechberger JF, Sin WC, Naus CC (2014) Pannexin 2 protein expression is not restricted to the CNS. Front Cell Neurosci 8:392
Lee WM (2008) Etiologies of acute liver failure. Semin Liver Dis 28:142–152
Lee SS, Buters JT, Pineau T, Fernandez-Salguero P, Gonzalez FJ (1996) Role of CYP2E1 in the hepatotoxicity of acetaminophen. J Biol Chem 271:12063–12067
Liu ZX, Han D, Gunawan B, Kaplowitz N (2006) Neutrophil depletion protects against murine acetaminophen hepatotoxicity. Hepatology 43:1220–1230
Livak KJ, Schmittgen TD (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2−ΔΔC method. Methods 25:402–408
Maes M et al (2016a) Involvement of connexin43 in acetaminophen-induced liver injury. Biochim Biophys Acta 1862:1111–1121
Maes M et al (2016b) Connexin32: a mediator of acetaminophen-induced liver injury? Toxicol Mech Methods 26:88–96
Maes M, Vinken M, Jaeschke H (2016c) Experimental models of hepatotoxicity related to acute liver failure. Toxicol Appl Pharmacol 290:86–97
Marina-García N, Franchi L, Kim YG, Miller D, McDonald C, Boons GJ, Núñez G (2008) Pannexin-1-mediated intracellular delivery of muramyl dipeptide induces caspase-1 activation via cryopyrin/NLRP3 independently of Nod2. J Immunol 180:4050–4057
Marques PE et al (2012) Chemokines and mitochondrial products activate neutrophils to amplify organ injury during mouse acute liver failure. Hepatology 56:1971–1982
Martin-Murphy BV, Holt MP, Ju C (2010) The role of damage associated molecular pattern molecules in acetaminophen-induced liver injury in mice. Toxicol Lett 192:387–394
Martinon F, Burns K, Tschopp J (2002) The inflammasome: a molecular platform triggering activation of inflammatory caspases and processing of proIL-beta. Mol Cell 10:417–426
McGill MR et al (2013) Plasma and liver acetaminophen-protein adduct levels in mice after acetaminophen treatment: dose-response, mechanisms, and clinical implications. Toxicol Appl Pharmacol 269:240–249
Mehendale HM (2005) Tissue repair: an important determinant of final outcome of toxicant-induced injury. Toxicol Pathol 33:41–51
Mitchell JR, Jollow DJ, Potter WZ, Davis DC, Gillette JR, Brodie BB (1973) Acetaminophen-induced hepatic necrosis. I. Role of drug metabolism. J Pharmacol Exp Ther 187:185–194
Muldrew KL, James LP, Coop L, McCullough SS, Hendrickson HP, Hinson JA, Mayeux PR (2002) Determination of acetaminophen-protein adducts in mouse liver and serum and human serum after hepatotoxic doses of acetaminophen using high-performance liquid chromatography with electrochemical detection. Drug Metabol Dispos 30:446–451
Mylvaganam S et al (2010) Hippocampal seizures alter the expression of the pannexin and connexin transcriptome. J Neurochem 112:92–102
Orellana JA et al (2011a) ATP and glutamate released via astroglial connexin 43 hemichannels mediate neuronal death through activation of pannexin 1 hemichannels. J Neurochem 118:826–840
Orellana JA et al (2011b) Amyloid beta-induced death in neurons involves glial and neuronal hemichannels. J Neurosci 31:4962–4977
Panchin Y, Kelmanson I, Matz M, Lukyanov K, Usman N, Lukyanov S (2000) A ubiquitous family of putative gap junction molecules. Curr Biol 10:473–474
Pelegrin P, Surprenant A (2006) Pannexin-1 mediates large pore formation and interleukin-1beta release by the ATP-gated P2X7 receptor. EMBO J 25:5071–5082
Pelegrin P, Barroso-Gutierrez C, Surprenant A (2008) P2X7 receptor differentially couples to distinct release pathways for IL-1beta in mouse macrophage. J Immunol 180:7147–7157
Penuela S et al (2007) Pannexin 1 and pannexin 3 are glycoproteins that exhibit many distinct characteristics from the connexin family of gap junction proteins. J Cell Sci 120:3772–3783
Penuela S, Bhalla R, Nag K, Laird DW (2009) Glycosylation regulates pannexin intermixing and cellular localization. Mol Biol Cell 20:4313–4323
Penuela S, Gehi R, Laird DW (2013) The biochemistry and function of pannexin channels. Biochim Biophys Acta 1828:15–22
Qu Y et al (2011) Pannexin-1 is required for ATP release during apoptosis but not for inflammasome activation. J Immunol 186:6553–6561
Sáez PJ, Shoji KF, Aguirre A, Sáez JC (2014) Regulation of hemichannels and gap junction channels by cytokines in antigen-presenting cells. Mediat Inflamm 2014:742734
Sandilos JK, Chiu YH, Chekeni FB, Armstrong AJ, Walk SF, Ravichandran KS, Bayliss DA (2012) Pannexin 1, an ATP release channel, is activated by caspase cleavage of its pore-associated C-terminal autoinhibitory region. J Biol Chem 287:11303–11311
Silverman WR et al (2009) The pannexin 1 channel activates the inflammasome in neurons and astrocytes. J Biol Chem 284:18143–18151
Swayne LA, Sorbara CD, Bennett SA (2010) Pannexin 2 is expressed by postnatal hippocampal neural progenitors and modulates neuronal commitment. J Biol Chem 285:24977–24986
Thompson RJ et al (2008) Activation of pannexin-1 hemichannels augments aberrant bursting in the hippocampus. Science 322:1555–1559
Vandesompele J, De Preter K, Pattyn F, Poppe B, Van Roy N, De Paepe A, Speleman F (2002) Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Genome Biol 3:RESEARCH0034
Wang N et al (2013) Paracrine signaling through plasma membrane hemichannels. Biochim Biophys Acta 1828:35–50
Williams CD, Bajt ML, Farhood A, Jaeschke H (2010a) Acetaminophen-induced hepatic neutrophil accumulation and inflammatory liver injury in CD18-deficient mice. Liver Int 30:1280–1292
Williams CD, Farhood A, Jaeschke H (2010b) Role of caspase-1 and interleukin-1beta in acetaminophen-induced hepatic inflammation and liver injury. Toxicol Appl Pharmacol 247:169–178
Williams CD et al (2011) Role of the Nalp3 inflammasome in acetaminophen-induced sterile inflammation and liver injury. Toxicol Appl Pharmacol 252:289–297
Williams CD, Bajt ML, Sharpe MR, McGill MR, Farhood A, Jaeschke H (2014) Neutrophil activation during acetaminophen hepatotoxicity and repair in mice and humans. Toxicol Appl Pharmacol 275:122–133
Xiao F, Waldrop SL, Khimji AK, Kilic G (2012) Pannexin1 contributes to pathophysiological ATP release in lipoapoptosis induced by saturated free fatty acids in liver cells. Am J Physiol Cell Physiol 303:1034–1044
Acknowledgements
This work was financially supported by the grants of the Agency for Innovation by Science and Technology in Flanders (IWT Grant 131003), the European Research Council (ERC Starting Grant 335476), the Fund for Scientific Research-Flanders (FWO Grants G009514N and G010214N), the University Hospital of the Vrije Universiteit Brussel-Belgium (“Willy Gepts Fonds” UZ-VUB), the University of São Paulo-Brazil, the Foundation for Research Support of the State of São Paulo (FAPESP SPEC grant 2013/50420-6) and the National Institutes of Health (NIH Grants DK102142 and P20 GM103549). The authors wish to thank Miss Tineke Vanhalewyn, Miss Dinja De Win, Miss Shirlei Meire da Silva, Miss Cintia Maria Monteiro de Araújo, Dr. André G. Oliveira, Dr. Pedro E. Marques, Dr. Gustavo B. Menezes, Mister José Alexandre Coelho Pimental and Mister Paul Claes for their dedicated technical assistance.
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Bruno Cogliati and Mathieu Vinken share equal seniorship.
An erratum to this article is available at http://dx.doi.org/10.1007/s00204-016-1929-y.
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Maes, M., McGill, M.R., da Silva, T.C. et al. Inhibition of pannexin1 channels alleviates acetaminophen-induced hepatotoxicity. Arch Toxicol 91, 2245–2261 (2017). https://doi.org/10.1007/s00204-016-1885-6
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DOI: https://doi.org/10.1007/s00204-016-1885-6