Abstract
Activation of microglia is a hallmark of neuroinflammation and has been implicated in the development of many psychiatric disorders. Hydrogen sulfide (H2S); a gasotransmitter has recently emerged as a potent antioxidant and anti-inflammatory molecule. However, the protective potential of H2S and its underpin molecular mechanisms in neuroinflammation associated behavioral deficits are still unknown. The present study has been designed to investigate the effect of sodium hydrogen sulfide (NaHS; a source of H2S) on microglial activation and associated behavior phenotype in response to lipopolysaccharide (LPS)-induced neuroinflammation. LPS treatment decreased H2S levels with a concomitant increase in reactive oxygen species (ROS) in the cortex and hippocampus. However, NaHS administration restored the endogenous H2S levels to the normal and decreased ROS levels. NaHS supplementation reduced the number of active microglia in the cortex and hippocampus of LPS treated animals. Morphological analysis of microglia showed significant increase in microglial density, span ratio and soma area in the cortex and hippocampus of LPS treated animals which was decreased by NaHS supplementation. Moreover, NaHS administration reduced the expression of microglial M1 phenotype markers (IL-1β, TNF-α and nitrite) and concomitantly increased the expression of M2 phenotype markers (IL-4 and TGF-β) in the brain regions of LPS treated animals. Furthermore, LPS-induced anxiety-like behavior assessed by open field test and elevated plus maze was reversed by NaHS supplementation. Taken together, these findings suggest that H2S supplementation ameliorates LPS-induced behavioral deficits by suppressing pro-inflammatory and promoting anti-inflammatory microglial response. Therefore, H2S releasing drugs may be potential therapeutics to treat neuroinflammation associated psychiatric disorders.
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Abbreviations
- AzMC:
-
(7-Azido-4-methylcoumarin)
- BBB:
-
(Blood brain barrier)
- CNS:
-
(Central nervous system)
- CSF1:
-
(Colony stimulating factor 1)
- DCFH-DA:
-
(2', 7'-Dichlorofluorescein diacetate)
- GAPDH:
-
(Glyceraldehyde-3-phosphate dehydrogenase)
- H2S:
-
(Hydrogen sulphide)
- Iba1:
-
(Ionized calcium binding adaptor molecule-1)
- IFN-γ:
-
(Interferon γ)
- IL-1β:
-
(Interleukin 1β)
- LPS:
-
(Lipopolysaccharide)
- NaHS:
-
(Sodium hydrogen sulphide)
- ROS:
-
(Reactive oxygen species)
- TNFR:
-
(TNF-α receptor)
- TNF-α:
-
(Tumor necrosis factor α)
References
Abe K, Kimura H (1996) The possible role of hydrogen sulfide as an endogenous neuromodulator. J Neurosci 16:1066–1071. https://doi.org/10.1523/JNEUROSCI
Anand D, Colpo GD, Zeni G et al (2017) Attention-deficit/hyperactivity disorder and inflammation: what does current knowledge tell US? A systematic review. Front Psychiatry 8. https://doi.org/10.3389/fpsyt.2017.00228
Barbosa IG, Rocha NP, Assis F et al (2015) Monocyte and lymphocyte activation in bipolar disorder: a new piece in the puzzle of immune dysfunction in mood disorders. Int J Neuropsychopharmacol 18. doi: https://doi.org/10.1093/ijnp/pyu021
Bassi GS, Kanashiro A, Santin FM et al (2012) Lipopolysaccharide-induced sickness behaviour evaluated in different models of anxiety and innate fear in rats. Basic Clin Pharmacol Toxicol 110:359–369. https://doi.org/10.1111/j.1742-7843.2011.00824.x
Bessis A, Béchade C, Bernard D, Roumier A (2007) Microglial control of neuronal death and synaptic properties. Glia 55:233–238. https://doi.org/10.1002/glia.20459
Bigagli E, Luceri C, De Angioletti M et al (2018) New NO- and H2S-releasing doxorubicins as targeted therapy against chemoresistance in castration-resistant prostate cancer: in vitro and in vivo evaluations. Investig New Drugs 36:985–998. https://doi.org/10.1007/s10637-018-0590-0
Bohatschek M, Werner A, Raivich G (2001) Systemic LPS injection leads to granulocyte influx into Normal and injured brain: effects of ICAM-1 deficiency. Exp Neurol 172:137–152. https://doi.org/10.1006/exnr.2001.7764
Bolić B, Mijušković A, Popović-Bijelić A et al (2015) Reactions of superoxide dismutases with HS − /H 2 S and superoxide radical anion: an in vitro EPR study. Nitric Oxide 51:19–23. https://doi.org/10.1016/j.niox.2015.09.008
Bollinger JL, Bergeon Burns CM, Wellman CL (2016) Differential effects of stress on microglial cell activation in male and female medial prefrontal cortex. Brain Behav Immun 52:88–97. https://doi.org/10.1016/j.bbi.2015.10.003
Boulle F, Massart R, Stragier E et al (2014) Hippocampal and behavioral dysfunctions in a mouse model of environmental stress: normalization by agomelatine. Transl Psychiatry 4:e485–e485. https://doi.org/10.1038/tp.2014.125
Brites D, Fernandes A (2015) Neuroinflammation and depression: microglia activation, extracellular microvesicles and microRNA Dysregulation. Front Cell Neurosci 9:476. https://doi.org/10.3389/fncel.2015.00476
Cherry JD, Olschowka JA, O’Banion MK (2014) Neuroinflammation and M2 microglia: the good, the bad, and the inflamed. J Neuroinflammation 11:98. https://doi.org/10.1186/1742-2094-11-98
Cunningham CL, Martínez-Cerdeño V, Noctor SC (2013) Microglia regulate the number of neural precursor cells in the developing cerebral cortex. J Neurosci 33:4216–4233. https://doi.org/10.1523/JNEUROSCI.3441-12.2013
Dai J, Wang X, Feng J et al (2008) Regulatory role of thioredoxin in homocysteine-induced monocyte chemoattractant protein-1 secretion in monocytes/macrophages. FEBS Lett 582:3893–3898. https://doi.org/10.1016/j.febslet.2008.10.030
Davis EJ, Foster TD, Thomas WE (1994) Cellular forms and functions of brain microglia. Brain Res Bull 34:73–78. https://doi.org/10.1016/0361-9230(94)90189-9
De La Garza R (2005) Endotoxin- or pro-inflammatory cytokine-induced sickness behavior as an animal model of depression: focus on anhedonia. Neurosci Biobehav Rev 29:761–770. https://doi.org/10.1016/J.NEUBIOREV.2005.03.016
De Picker LJ, Morrens M, Chance SA, Boche D (2017) Microglia and brain plasticity in acute psychosis and schizophrenia illness course: a meta-review. Front Psychiatry 8:238. https://doi.org/10.3389/fpsyt.2017.00238
Du C, Jin M, Hong Y et al (2014) Downregulation of cystathionine β-synthase/hydrogen sulfide contributes to rotenone-induced microglia polarization toward M1 type. Biochem Biophys Res Commun 451:239–245. https://doi.org/10.1016/j.bbrc.2014.07.107
Dubbelaar ML, Kracht L, Eggen BJL, Boddeke EWGM (2018) The kaleidoscope of microglial phenotypes. Front Immunol 9:1753. https://doi.org/10.3389/fimmu.2018.01753
Elmore MRP, Najafi AR, Koike MA et al (2014) Colony-stimulating factor 1 receptor signaling is necessary for microglia viability , unmasking a microglia progenitor cell in the adult brain. Neuron 82:380–397. https://doi.org/10.1016/j.neuron.2014.02.040
Fagone P, Mangano K, Mammana S et al (2015) Carbon monoxide-releasing molecule-A1 (CORM-A1) improves clinical signs of experimental autoimmune uveoretinitis (EAU) in rats. Clin Immunol 157:198–204. https://doi.org/10.1016/j.clim.2015.02.002
Fagone P, Mangano K, Quattrocchi C et al (2015) Effects of NO-hybridization on the Immunomodulatory properties of the HIV protease inhibitors Lopinavir and ritonavir. Basic Clin Pharmacol Toxicol 117:306–315. https://doi.org/10.1111/bcpt.12414
Fagone P, Mazzon E, Bramanti P et al (2018) Gasotransmitters and the immune system: mode of action and novel therapeutic targets. Eur J Pharmacol 834:92–102. https://doi.org/10.1016/j.ejphar.2018.07.026
Fernández-Arjona M d M, Grondona JM, Granados-Durán P et al (2017) Microglia morphological categorization in a rat model of Neuroinflammation by hierarchical cluster and principal components analysis. Front Cell Neurosci 11:235. https://doi.org/10.3389/fncel.2017.00235
Folke J, Rydbirk R, Løkkegaard A et al (2019) Distinct autoimmune anti-α-Synuclein antibody patterns in multiple system atrophy and Parkinson’s disease. Front Immunol 10:2253. https://doi.org/10.3389/fimmu.2019.02253
Frick LR, Williams K, Pittenger C (2013) Microglial dysregulation in psychiatric disease. Clin Dev Immunol 2013:608654. https://doi.org/10.1155/2013/608654
Gianchecchi E, Fierabracci A (2020) Insights on the effects of resveratrol and some of its derivatives in cancer and autoimmunity: A molecule with a dual activity. Antioxidants 9. https://doi.org/10.3390/antiox9020091
Gong QH, Wang Q, Pan LL et al (2010) Hydrogen sulfide attenuates lipopolysaccharide-induced cognitive impairment: a pro-inflammatory pathway in rats. Pharmacol Biochem Behav 96:52–58. https://doi.org/10.1016/j.pbb.2010.04.006
Green LC, Wagner DA, Glogowski J et al (1982) Analysis of nitrate, nitrite, and [15N]nitrate in biological fluids. Anal Biochem 126:131–138. https://doi.org/10.1016/0003-2697(82)90118-x
Hinwood M, Morandini J, Day TA, Walker FR (2012) Evidence that microglia mediate the neurobiological effects of chronic psychological stress on the medial prefrontal cortex. Cereb Cortex 22:1442–1454. https://doi.org/10.1093/cercor/bhr229
Hmama Z, Knutson KL, Herrera-Velit P et al (1999) Monocyte adherence induced by lipopolysaccharide involves CD14, LFA-1, and cytohesin-1. Regulation by rho and phosphatidylinositol 3-kinase. J Biol Chem 274:1050–1057. https://doi.org/10.1074/jbc.274.2.1050
Holmes SE, Hinz R, Conen S et al (2018) Elevated Translocator protein in anterior cingulate in major depression and a role for inflammation in suicidal thinking: a positron emission tomography study. Biol Psychiatry 83:61–69. https://doi.org/10.1016/j.biopsych.2017.08.005
Hu L, Wong PT, Moore PK, Bian J (2007) Hydrogen sulfide attenuates lipopolysaccharide-induced inflammation by inhibition of p38 mitogen-activated protein kinase in microglia. 1121–1128. https://doi.org/10.1111/j.1471-4159.2006.04283.x
Jimenez JC, Su K, Goldberg AR et al (2018) Anxiety cells in a hippocampal-hypothalamic circuit correspondence. Neuron 97:670–683. https://doi.org/10.1016/j.neuron.2018.01.016
Kabil O, Banerjee R (2014) Enzymology of H2S biogenesis, decay and signaling. Antioxidants Redox Signal 20:770–782. https://doi.org/10.1089/ars.2013.5339
Kempuraj D, Thangavel R, Selvakumar GP et al (2017) Brain and peripheral atypical inflammatory mediators potentiate Neuroinflammation and Neurodegeneration. Front Cell Neurosci 11:216. https://doi.org/10.3389/fncel.2017.00216
Kettenmann H, Hanisch U-K, Noda M, Verkhratsky A (2011) Physiology of microglia. Physiol Rev 91:461–553. https://doi.org/10.1152/physrev.00011.2010
Khasnavis S, Jana A, Roy A et al (2012) Suppression of nuclear factor-κB activation and inflammation in microglia by physically modified saline. J Biol Chem 287:29529–29542. https://doi.org/10.1074/jbc.M111.338012
Kim GH, Kim JE, Rhie SJ, Yoon S (2015) The role of oxidative stress in neurodegenerative diseases. Exp Neurobiol 24:325–340. https://doi.org/10.5607/en.2015.24.4.325
Kita M, Uchida S, Yamada K, Ano Y (2019) Anxiolytic effects of theaflavins via dopaminergic activation in the frontal cortex. Biosci Biotechnol Biochem 83:1157–1162. https://doi.org/10.1080/09168451.2019.1584523
Kloss CUA, Bohatschek M, Kreutzberg GW, Raivich G (2001) Effect of lipopolysaccharide on the morphology and integrin Immunoreactivity of ramified microglia in the mouse brain and in cell culture. Exp Neurol 168:32–46. https://doi.org/10.1006/EXNR.2000.7575
Kondo S, Kohsaka S, Okabe S (2011) Long-term changes of spine dynamics and microglia after transient peripheral immune response triggered by LPS in vivo. Mol Brain 4:27. https://doi.org/10.1186/1756-6606-4-27
Kumar M, Modi M, Sandhir R (2017) Hydrogen sulfide attenuates homocysteine-induced cognitive deficits and neurochemical alterations by improving endogenous hydrogen sulfide levels. BioFactors 43:434–450. https://doi.org/10.1002/biof.1354
Kumar M, Ray RS, Sandhir R (2018) Hydrogen sulfide attenuates homocysteine-induced neurotoxicity by preventing mitochondrial dysfunctions and oxidative damage: in vitro and in vivo studies. Neurochem Int 120:87–98. https://doi.org/10.1016/j.neuint.2018.07.010
Kumar M, Sandhir R (2018a) Neuroprotective effect of hydrogen sulfide in Hyperhomocysteinemia is mediated through antioxidant action involving Nrf2. NeuroMolecular Med 20:475–490. https://doi.org/10.1007/s12017-018-8505-y
Kumar M, Sandhir R (2018b) Hydrogen sulfide in physiological and pathological mechanisms in brain. CNS Neurol Disord Drug Targets 17:654–670. https://doi.org/10.2174/1871527317666180605072018
Kumar M, Sandhir R (2019) Hydrogen sulfide suppresses homocysteine-induced glial activation and inflammatory response. Nitric Oxide. https://doi.org/10.1016/j.niox.2019.05.008
Kumar M, Sandhir R (2020) Hydrogen sulfide attenuates hyperhomocysteinemia-induced mitochondrial dysfunctions in brain. Mitochondrion 50:158–169. https://doi.org/10.1016/j.mito.2019.11.004
Lall D, Baloh RH (2017) Microglia and C9orf72 in neuroinflammation and ALS and frontotemporal dementia. J Clin Invest 127:3250–3258. https://doi.org/10.1172/JCI90607
Lazarević M, Mazzon E, Momčilović M et al (2018) The H2S donor GYY4137 stimulates reactive oxygen species generation in BV2 cells while suppressing the secretion of TNF and nitric oxide. Molecules 23. https://doi.org/10.3390/molecules23112966
Leffa DT, Torres ILS, Rohde LA (2019) A review on the role of inflammation in attention-deficit/hyperactivity disorder. Neuroimmunomodulation 25:328–333. https://doi.org/10.1159/000489635
Liddelow SA, Guttenplan KA, Clarke LE et al (2017) Neurotoxic reactive astrocytes are induced by activated microglia. Nature 541:481–487. https://doi.org/10.1038/nature21029
Lombardo SD, Mazzon E, Basile MS et al (2019) Upregulation of IL-1 receptor antagonist in a mouse model of migraine. Brain Sci 9. https://doi.org/10.3390/brainsci9070172
Lowry OH, Rosebrough NJ, Farr AL, Randall RJ (1951) Protein measurement with the Folin phenol reagent. J Biol Chem 193:265–275
Ma Y, Wang J, Wang Y, Yang G-Y (2017) The biphasic function of microglia in ischemic stroke. Prog Neurobiol 157:247–272. https://doi.org/10.1016/j.pneurobio.2016.01.005
Madore C, Joffre C, Delpech JC et al (2013) Early morphofunctional plasticity of microglia in response to acute lipopolysaccharide. Brain Behav Immun 34:151–158. https://doi.org/10.1016/j.bbi.2013.08.008
Mammana S, Cavalli E, Gugliandolo A et al (2019) Could the combination of two non-psychotropic cannabinoids counteract neuroinflammation? Effectiveness of cannabidiol associated with cannabigerol. Medicina (Kaunas) 55. https://doi.org/10.3390/medicina55110747
Mammana S, Fagone P, Cavalli E et al (2018) The role of macrophages in Neuroinflammatory and neurodegenerative pathways of Alzheimer’s disease, amyotrophic lateral sclerosis, and multiple sclerosis: Pathogenetic cellular effectors and potential therapeutic targets. Int J Mol Sci 19. https://doi.org/10.3390/ijms19030831
Nimmerjahn A, Kirchhoff F, Helmchen F (2005) Resting microglial cells are highly dynamic surveillants of brain parenchyma in vivo. Science 308:1314–1318. https://doi.org/10.1126/science.1110647
Noh H, Jeon J, Seo H (2014) Systemic injection of LPS induces region-specific neuroinflammation and mitochondrial dysfunction in normal mouse brain. Neurochem Int 69:35–40. https://doi.org/10.1016/j.neuint.2014.02.008
Okonogi T, Nakayama R, Sasaki T, Ikegaya Y (2018) Characterization of peripheral activity states and cortical local field potentials of mice in an elevated plus maze test. Front Behav Neurosci 12:62. https://doi.org/10.3389/fnbeh.2018.00062
Orihuela R, McPherson CA, Harry GJ (2016) Microglial M1/M2 polarization and metabolic states. Br J Pharmacol 173:649. https://doi.org/10.1111/BPH.13139
Pepe G, De Maglie M, Minoli L et al (2017) Selective proliferative response of microglia to alternative polarization signals. J Neuroinflammation 14:236. https://doi.org/10.1186/s12974-017-1011-6
Perez-Dominguez M, Ávila-Muñoz E, Domínguez-Rivas E, Zepeda A (2019) The detrimental effects of lipopolysaccharide-induced neuroinflammation on adult hippocampal neurogenesis depend on the duration of the pro-inflammatory response. Neural Regen Res 14:817–825. https://doi.org/10.4103/1673-5374.249229
Petralia MC, Battaglia G, Bruno V et al (2020) The role of macrophage migration inhibitory factor in Alzheimer’s disease: conventionally pathogenetic or unconventionally protective? Molecules 25. https://doi.org/10.2119/molmed.2009.00123
Pfaffl MW (2001) A new mathematical model for relative quantification in real-time RT-PCR. Nucleic Acids Res 29:e45. https://doi.org/10.1093/nar/29.9.e45
Pi G, Gao D, Wu D et al (2020) Posterior basolateral amygdala to ventral hippocampal CA1 drives approach behaviour to exert an anxiolytic effect. Nat Commun 11:1–15. https://doi.org/10.1038/s41467-019-13919-3
Rosin JM, Vora SR, Kurrasch DM (2018) Depletion of embryonic microglia using the CSF1R inhibitor PLX5622 has adverse sex-speci fi c e ff ects on mice , including accelerated weight gain , hyperactivity and anxiolytic-like behaviour. Brain Behav Immun 73:682–697. https://doi.org/10.1016/j.bbi.2018.07.023
Roy A, Fung YK, Liu X, Pahan K (2006) Up-regulation of microglial CD11b expression by nitric oxide. J Biol Chem 281:14971–14980. https://doi.org/10.1074/jbc.M600236200
Sandhir R, Onyszchuk G, Berman NEJ (2008) Exacerbated glial response in the aged mouse hippocampus following controlled cortical impact injury. Exp Neurol 213:372–380. https://doi.org/10.1016/j.expneurol.2008.06.013
Savage JC, St-Pierre M-K, Hui CW, Tremblay M-E (2019) Microglial ultrastructure in the hippocampus of a lipopolysaccharide-induced sickness mouse model. Front Neurosci 13:1340. https://doi.org/10.3389/fnins.2019.01340
Shin Yim Y, Park A, Berrios J et al (2017) Reversing behavioural abnormalities in mice exposed to maternal inflammation. Nature 549:482–487. https://doi.org/10.1038/nature23909
Smith JA, Das A, Ray SK, Banik NL (2012) Role of pro-inflammatory cytokines released from microglia in neurodegenerative diseases. Brain Res Bull 87:10–20. https://doi.org/10.1016/j.brainresbull.2011.10.004
Steiner J, Bielau H, Brisch R et al (2008) Immunological aspects in the neurobiology of suicide: elevated microglial density in schizophrenia and depression is associated with suicide. J Psychiatr Res 42:151–157. https://doi.org/10.1016/j.jpsychires.2006.10.013
Tang Y, Le W (2016) Differential roles of M1 and M2 microglia in neurodegenerative diseases. Mol Neurobiol 53:1181–1194. https://doi.org/10.1007/s12035-014-9070-5
Tay TL, Béchade C, D’Andrea I et al (2017) Microglia gone rogue: impacts on psychiatric disorders across the lifespan. Front Mol Neurosci 10:421. https://doi.org/10.3389/fnmol.2017.00421
Thibaut F (2017) Neuroinflammation: new vistas for neuropsychiatric research. Dialogues Clin Neurosci 19:3–4
Thorson MK, Majtan T, Kraus JP, Barrios AM (2013) Identification of Cystathionine β-synthase inhibitors using a hydrogen sulfide selective probe. Angew Chemie Int Ed 52:4641–4644. https://doi.org/10.1002/anie.201300841
Valkanova V, Ebmeier KP, Allan CL (2013) CRP, IL-6 and depression: a systematic review and meta-analysis of longitudinal studies. J Affect Disord 150:736–744. https://doi.org/10.1016/j.jad.2013.06.004
Wake H, Moorhouse AJ, Jinno S et al (2009) Resting microglia directly monitor the functional state of synapses in vivo and determine the fate of ischemic terminals. J Neurosci 29:3974–3980. https://doi.org/10.1523/JNEUROSCI.4363-08.2009
Walf AA, Frye CA (2007) The use of the elevated plus maze as an assay of anxiety-related behavior in rodents. Nat Protoc 2:322–328. https://doi.org/10.1038/nprot.2007.44
Wallace JL, Vaughan D, Dicay M et al (2018) Hydrogen sulfide-releasing therapeutics: translation to the clinic. Antioxid Redox Signal 28:1533–1540. https://doi.org/10.1089/ars.2017.7068
Wallace JL, Wang R (2015) Hydrogen sulfide-based therapeutics: exploiting a unique but ubiquitous gasotransmitter. Nat Rev Drug Discov 14:329–345. https://doi.org/10.1038/nrd4433
Wang K-C, Fan L-W, Kaizaki A et al (2013) Neonatal lipopolysaccharide exposure induces long-lasting learning impairment, less anxiety-like response and hippocampal injury in adult rats. Neuroscience 234:146–157. https://doi.org/10.1016/j.neuroscience.2012.12.049
Wang H, Joseph JA (1999) Quantifying cellular oxidative stress by dichlorofluorescein assay using microplate reader. Free Radic Biol Med 27:612–616. https://doi.org/10.1016/S0891-5849(99)00107-0
Wang X, Pal R, Chen XW et al (2007) Genome-wide transcriptome profiling of region-specific vulnerability to oxidative stress in the hippocampus. Genomics 90:201–212. https://doi.org/10.1016/j.ygeno.2007.03.007
Wang YS, White TD (1999) The bacterial endotoxin lipopolysaccharide causes rapid inappropriate excitation in rat cortex. J Neurochem 72:652–660. https://doi.org/10.1046/j.1471-4159.1999.0720652.x
Wolf SA, Boddeke HWGM, Kettenmann H (2017) Microglia in physiology and disease. https://doi.org/10.1146/annurev-physiol-022516-034406
Xia C-Y, Zhang S, Gao Y et al (2015) Selective modulation of microglia polarization to M2 phenotype for stroke treatment. Int Immunopharmacol 25:377–382. https://doi.org/10.1016/j.intimp.2015.02.019
Xin D, Chu X, Bai X et al (2018) L-cysteine suppresses hypoxia-ischemia injury in neonatal mice by reducing glial activation, promoting autophagic flux and mediating synaptic modification via H2S formation. Brain Behav Immun 73:222–234. https://doi.org/10.1016/J.BBI.2018.05.007
Xuan A, Long D, Li J et al (2012) Hydrogen sulfide attenuates spatial memory impairment and hippocampal neuroinflammation in beta-amyloid rat model of Alzheimer’s disease. J Neuroinflammation 9:687. https://doi.org/10.1186/1742-2094-9-202
Yang J, Liu R, Lu F et al (2019) Fast Green FCF attenuates lipopolysaccharide-induced depressive-like behavior and Downregulates TLR4/Myd88/NF-κB signal pathway in the mouse hippocampus. Front Pharmacol 10:501. https://doi.org/10.3389/fphar.2019.00501
Yirmiya R, Rimmerman N, Reshef R (2015) Depression as a microglial disease. Trends Neurosci 38:637–658. https://doi.org/10.1016/J.TINS.2015.08.001
Young K, Morrison H (2018) Quantifying microglia morphology from photomicrographs of immunohistochemistry prepared tissue using ImageJ. J Vis Exp 136. doi: https://doi.org/10.3791/57648
Zhang G-Y, Lu D, Duan S-F et al (2018) Hydrogen sulfide alleviates lipopolysaccharide-induced diaphragm dysfunction in rats by reducing apoptosis and inflammation through ROS/MAPK and TLR4/NF- κ B signaling pathways. Oxidative Med Cell Longev 2018:1–15. https://doi.org/10.1155/2018/9647809
Zhang B, Wang P-P, Hu K-L et al (2019) Antidepressant-like effect and mechanism of action of Honokiol on the mouse lipopolysaccharide (LPS) depression model. Molecules 24:2035. https://doi.org/10.3390/molecules24112035
Zhang Q, Yuan L, Liu D et al (2014) Hydrogen sulfide attenuates hypoxia-induced neurotoxicity through inhibiting microglial activation. Pharmacol Res 84:32–44. https://doi.org/10.1016/J.PHRS.2014.04.009
Zhou X, Chu X, Xin D et al (2019) L-cysteine-derived H2S promotes microglia M2 polarization via activation of the AMPK pathway in hypoxia-ischemic neonatal mice. Front Mol Neurosci 12:58. https://doi.org/10.3389/fnmol.2019.00058
Zhou Y, Wu Z, Cao X et al (2016) HNO suppresses LPS-induced inflammation in BV-2 microglial cells via inhibition of NF-κB and p38 MAPK pathways. Pharmacol Res 111:885–895. https://doi.org/10.1016/j.phrs.2016.08.007
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The financial assistance provided by the Department of Biotechnology (DBT), Govt. of India, (grant number BT/361/NE/TBP/2012) is acknowledged. The authors also acknowledge financial assistance provided under the Promotion of University Research and Scientific Excellence (PURSE) by Department of Science and Technology (DST) New Delhi and under University Grants Commission (UGC) under Special Assistance Program (SAP) of UGC (DRS Phase-II).
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Mohit Kumar and Palkin Arora contributed equally. Mohit Kumar and Rajat Sandhir: Conceptualization, Methodology and Software. Mohit Kumar and Palkin Arora: Data curation, Writing- Original draft preparation. Rajat Sandhir: Supervision, Writing- Reviewing and Editing. All authors have read and approved the final version of the manuscript.
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Figure S1
Effect of NaHS supplementation on microglial shape and complexity in LPS treated animals. Representative photomicrograph of FracLac analysis of microglia in the CA1 region of hippocampus of LPS treated animals. (PNG 537 kb)
Figure S2
Effect of NaHS supplementation on microglial shape and complexity in LPS treated animals. Representative photomicrograph of FracLac analysis of microglia in the CA3 region of hippocampus of LPS treated animals. (PNG 521 kb)
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Kumar, M., Arora, P. & Sandhir, R. Hydrogen Sulfide Reverses LPS-Induced Behavioral Deficits by Suppressing Microglial Activation and Promoting M2 Polarization. J Neuroimmune Pharmacol 16, 483–499 (2021). https://doi.org/10.1007/s11481-020-09920-z
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DOI: https://doi.org/10.1007/s11481-020-09920-z