Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway
The inflammatory microenvironment in the retina plays a vital role in the pathogenesis and progression of retinitis pigmentosa (RP). Microglial inflammatory cytokines production leads to gliosis and apoptosis of retinal neurons, and ultimately, visual loss. Cell-based therapies using grafted olfacto...
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| Format: | Article |
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Frontiers Media S.A.
2019-07-01
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| Series: | Frontiers in Cellular Neuroscience |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fncel.2019.00341/full |
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| author | Jing Xie Jing Xie Yijian Li Yijian Li Jiaman Dai Jiaman Dai Yan He Yan He Dayu Sun Dayu Sun Chao Dai Chao Dai Haiwei Xu Haiwei Xu Zheng Qin Yin Zheng Qin Yin |
| author_facet | Jing Xie Jing Xie Yijian Li Yijian Li Jiaman Dai Jiaman Dai Yan He Yan He Dayu Sun Dayu Sun Chao Dai Chao Dai Haiwei Xu Haiwei Xu Zheng Qin Yin Zheng Qin Yin |
| author_sort | Jing Xie |
| collection | DOAJ |
| description | The inflammatory microenvironment in the retina plays a vital role in the pathogenesis and progression of retinitis pigmentosa (RP). Microglial inflammatory cytokines production leads to gliosis and apoptosis of retinal neurons, and ultimately, visual loss. Cell-based therapies using grafted olfactory ensheathing cells (OECs) have demonstrated modulation of degenerative microenvironments in the central nervous system (CNS), in a number of animal models. However, mechanisms by which grafted OECs can reduce degeneration in the retina are not well understood. In the present study, we set up an in vitro OEC/BV2 microglia co-culture system, and an in vivo royal college of surgeons (RCS) rat model, used cell transplantation, immunohistochemistry, RT-PCR, western blot to explore the mechanisms by which OECs affect expression of pro- or anti-inflammatory cytokines and polarization of M(IL-6) and M(Arg1) type microglial activation in the retina. We found that compared with the LPS (Lipopolysaccharide) and olfactory nerve fibroblast (ONF), the OEC and BV2 co-culture group modulate microglial cytokines releasing toward the anti-inflammation, and away from the pro-inflammation, which was followed by higher IL-4 and IL-10 and lower TNF-a and IL-6 in their expression levels. In vivo, the transplantation group significantly reduced activated resident microglia/infiltrated macrophage, and expression of pro-inflammatory cytokines in RCS rats retina, increased anti-inflammatory cytokines in transplantation area. Additionally, we found that OECs expressed SOCS3 and down-regulated the JAK2/STAT3 (Janus Kinase 2/Signal Transducer and Activator of Transcription 3) pathway. Thirdly, OEC transplantation reduced Caspase-3 expression, protected inner retinal neurons and photoreceptors and therefore, delayed the visual function degeneration. In conclusion, our data suggest that OECs delay retinal degeneration in RP, at least in part through immunomodulation of microglia via the JAK/STAT pathway. |
| first_indexed | 2024-12-22T01:13:20Z |
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| id | doaj.art-596a3ff33d36441ca6b1850c3f53f5cb |
| institution | Directory Open Access Journal |
| issn | 1662-5102 |
| language | English |
| last_indexed | 2024-12-22T01:13:20Z |
| publishDate | 2019-07-01 |
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| series | Frontiers in Cellular Neuroscience |
| spelling | doaj.art-596a3ff33d36441ca6b1850c3f53f5cb2022-12-21T18:43:55ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022019-07-011310.3389/fncel.2019.00341466643Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT PathwayJing Xie0Jing Xie1Yijian Li2Yijian Li3Jiaman Dai4Jiaman Dai5Yan He6Yan He7Dayu Sun8Dayu Sun9Chao Dai10Chao Dai11Haiwei Xu12Haiwei Xu13Zheng Qin Yin14Zheng Qin Yin15Southwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaSouthwest Eye Hospital, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, ChinaKey Laboratory of Visual Damage, Regeneration and Restoration of Chongqing, Chongqing, ChinaThe inflammatory microenvironment in the retina plays a vital role in the pathogenesis and progression of retinitis pigmentosa (RP). Microglial inflammatory cytokines production leads to gliosis and apoptosis of retinal neurons, and ultimately, visual loss. Cell-based therapies using grafted olfactory ensheathing cells (OECs) have demonstrated modulation of degenerative microenvironments in the central nervous system (CNS), in a number of animal models. However, mechanisms by which grafted OECs can reduce degeneration in the retina are not well understood. In the present study, we set up an in vitro OEC/BV2 microglia co-culture system, and an in vivo royal college of surgeons (RCS) rat model, used cell transplantation, immunohistochemistry, RT-PCR, western blot to explore the mechanisms by which OECs affect expression of pro- or anti-inflammatory cytokines and polarization of M(IL-6) and M(Arg1) type microglial activation in the retina. We found that compared with the LPS (Lipopolysaccharide) and olfactory nerve fibroblast (ONF), the OEC and BV2 co-culture group modulate microglial cytokines releasing toward the anti-inflammation, and away from the pro-inflammation, which was followed by higher IL-4 and IL-10 and lower TNF-a and IL-6 in their expression levels. In vivo, the transplantation group significantly reduced activated resident microglia/infiltrated macrophage, and expression of pro-inflammatory cytokines in RCS rats retina, increased anti-inflammatory cytokines in transplantation area. Additionally, we found that OECs expressed SOCS3 and down-regulated the JAK2/STAT3 (Janus Kinase 2/Signal Transducer and Activator of Transcription 3) pathway. Thirdly, OEC transplantation reduced Caspase-3 expression, protected inner retinal neurons and photoreceptors and therefore, delayed the visual function degeneration. In conclusion, our data suggest that OECs delay retinal degeneration in RP, at least in part through immunomodulation of microglia via the JAK/STAT pathway.https://www.frontiersin.org/article/10.3389/fncel.2019.00341/fullretinitis pigmentosamicrogliainfiltrated macrophage neuroinflammationJAK/STAT pathwayolfactory ensheathing cell |
| spellingShingle | Jing Xie Jing Xie Yijian Li Yijian Li Jiaman Dai Jiaman Dai Yan He Yan He Dayu Sun Dayu Sun Chao Dai Chao Dai Haiwei Xu Haiwei Xu Zheng Qin Yin Zheng Qin Yin Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway Frontiers in Cellular Neuroscience retinitis pigmentosa microglia infiltrated macrophage neuroinflammation JAK/STAT pathway olfactory ensheathing cell |
| title | Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway |
| title_full | Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway |
| title_fullStr | Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway |
| title_full_unstemmed | Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway |
| title_short | Olfactory Ensheathing Cells Grafted Into the Retina of RCS Rats Suppress Inflammation by Down-Regulating the JAK/STAT Pathway |
| title_sort | olfactory ensheathing cells grafted into the retina of rcs rats suppress inflammation by down regulating the jak stat pathway |
| topic | retinitis pigmentosa microglia infiltrated macrophage neuroinflammation JAK/STAT pathway olfactory ensheathing cell |
| url | https://www.frontiersin.org/article/10.3389/fncel.2019.00341/full |
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