Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH

Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Hanhai Zeng [verfasserIn] Huaijun Chen [verfasserIn] Min Li [verfasserIn] Jianfeng Zhuang [verfasserIn] Yucong Peng [verfasserIn] Hang Zhou [verfasserIn] Chaoran Xu [verfasserIn] Qian Yu [verfasserIn] Xiongjie Fu [verfasserIn] Shenglong Cao [verfasserIn] Jing Cai [verfasserIn] Feng Yan [verfasserIn] Gao Chen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation

Übergeordnetes Werk:	In: Journal of Neuroinflammation - BMC, 2004, 18(2021), 1, Seite 16
Übergeordnetes Werk:	volume:18 ; year:2021 ; number:1 ; pages:16

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s12974-021-02270-4

Katalog-ID:	DOAJ071253041

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520			\|a Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH.
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allfields	10.1186/s12974-021-02270-4 doi (DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4 DE-627 ger DE-627 rakwb eng RC346-429 Hanhai Zeng verfasserin aut Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system Huaijun Chen verfasserin aut Min Li verfasserin aut Jianfeng Zhuang verfasserin aut Yucong Peng verfasserin aut Hang Zhou verfasserin aut Chaoran Xu verfasserin aut Qian Yu verfasserin aut Xiongjie Fu verfasserin aut Shenglong Cao verfasserin aut Jing Cai verfasserin aut Feng Yan verfasserin aut Gao Chen verfasserin aut In Journal of Neuroinflammation BMC, 2004 18(2021), 1, Seite 16 (DE-627)391784781 (DE-600)2156455-3 17422094 nnns volume:18 year:2021 number:1 pages:16 https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 kostenfrei https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/toc/1742-2094 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 16
spelling	10.1186/s12974-021-02270-4 doi (DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4 DE-627 ger DE-627 rakwb eng RC346-429 Hanhai Zeng verfasserin aut Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system Huaijun Chen verfasserin aut Min Li verfasserin aut Jianfeng Zhuang verfasserin aut Yucong Peng verfasserin aut Hang Zhou verfasserin aut Chaoran Xu verfasserin aut Qian Yu verfasserin aut Xiongjie Fu verfasserin aut Shenglong Cao verfasserin aut Jing Cai verfasserin aut Feng Yan verfasserin aut Gao Chen verfasserin aut In Journal of Neuroinflammation BMC, 2004 18(2021), 1, Seite 16 (DE-627)391784781 (DE-600)2156455-3 17422094 nnns volume:18 year:2021 number:1 pages:16 https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 kostenfrei https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/toc/1742-2094 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 16
allfields_unstemmed	10.1186/s12974-021-02270-4 doi (DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4 DE-627 ger DE-627 rakwb eng RC346-429 Hanhai Zeng verfasserin aut Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system Huaijun Chen verfasserin aut Min Li verfasserin aut Jianfeng Zhuang verfasserin aut Yucong Peng verfasserin aut Hang Zhou verfasserin aut Chaoran Xu verfasserin aut Qian Yu verfasserin aut Xiongjie Fu verfasserin aut Shenglong Cao verfasserin aut Jing Cai verfasserin aut Feng Yan verfasserin aut Gao Chen verfasserin aut In Journal of Neuroinflammation BMC, 2004 18(2021), 1, Seite 16 (DE-627)391784781 (DE-600)2156455-3 17422094 nnns volume:18 year:2021 number:1 pages:16 https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 kostenfrei https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/toc/1742-2094 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 16
allfieldsGer	10.1186/s12974-021-02270-4 doi (DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4 DE-627 ger DE-627 rakwb eng RC346-429 Hanhai Zeng verfasserin aut Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system Huaijun Chen verfasserin aut Min Li verfasserin aut Jianfeng Zhuang verfasserin aut Yucong Peng verfasserin aut Hang Zhou verfasserin aut Chaoran Xu verfasserin aut Qian Yu verfasserin aut Xiongjie Fu verfasserin aut Shenglong Cao verfasserin aut Jing Cai verfasserin aut Feng Yan verfasserin aut Gao Chen verfasserin aut In Journal of Neuroinflammation BMC, 2004 18(2021), 1, Seite 16 (DE-627)391784781 (DE-600)2156455-3 17422094 nnns volume:18 year:2021 number:1 pages:16 https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 kostenfrei https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/toc/1742-2094 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 16
allfieldsSound	10.1186/s12974-021-02270-4 doi (DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4 DE-627 ger DE-627 rakwb eng RC346-429 Hanhai Zeng verfasserin aut Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH. Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system Huaijun Chen verfasserin aut Min Li verfasserin aut Jianfeng Zhuang verfasserin aut Yucong Peng verfasserin aut Hang Zhou verfasserin aut Chaoran Xu verfasserin aut Qian Yu verfasserin aut Xiongjie Fu verfasserin aut Shenglong Cao verfasserin aut Jing Cai verfasserin aut Feng Yan verfasserin aut Gao Chen verfasserin aut In Journal of Neuroinflammation BMC, 2004 18(2021), 1, Seite 16 (DE-627)391784781 (DE-600)2156455-3 17422094 nnns volume:18 year:2021 number:1 pages:16 https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 kostenfrei https://doi.org/10.1186/s12974-021-02270-4 kostenfrei https://doaj.org/toc/1742-2094 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2021 1 16
language	English
source	In Journal of Neuroinflammation 18(2021), 1, Seite 16 volume:18 year:2021 number:1 pages:16
sourceStr	In Journal of Neuroinflammation 18(2021), 1, Seite 16 volume:18 year:2021 number:1 pages:16
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation Neurology. Diseases of the nervous system
isfreeaccess_bool	true
container_title	Journal of Neuroinflammation
authorswithroles_txt_mv	Hanhai Zeng @@aut@@ Huaijun Chen @@aut@@ Min Li @@aut@@ Jianfeng Zhuang @@aut@@ Yucong Peng @@aut@@ Hang Zhou @@aut@@ Chaoran Xu @@aut@@ Qian Yu @@aut@@ Xiongjie Fu @@aut@@ Shenglong Cao @@aut@@ Jing Cai @@aut@@ Feng Yan @@aut@@ Gao Chen @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	391784781
id	DOAJ071253041
language_de	englisch
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This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. 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callnumber-first	R - Medicine
author	Hanhai Zeng
spellingShingle	Hanhai Zeng misc RC346-429 misc Subarachnoid hemorrhage misc NRBF2 misc Rab7 misc Autophagy maturation misc Endoplasmic reticulum stress misc Neuroinflammation misc Neurology. Diseases of the nervous system Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH
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topic_title	RC346-429 Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH Subarachnoid hemorrhage NRBF2 Rab7 Autophagy maturation Endoplasmic reticulum stress Neuroinflammation
topic	misc RC346-429 misc Subarachnoid hemorrhage misc NRBF2 misc Rab7 misc Autophagy maturation misc Endoplasmic reticulum stress misc Neuroinflammation misc Neurology. Diseases of the nervous system
topic_unstemmed	misc RC346-429 misc Subarachnoid hemorrhage misc NRBF2 misc Rab7 misc Autophagy maturation misc Endoplasmic reticulum stress misc Neuroinflammation misc Neurology. Diseases of the nervous system
topic_browse	misc RC346-429 misc Subarachnoid hemorrhage misc NRBF2 misc Rab7 misc Autophagy maturation misc Endoplasmic reticulum stress misc Neuroinflammation misc Neurology. Diseases of the nervous system
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title	Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH
ctrlnum	(DE-627)DOAJ071253041 (DE-599)DOAJd4653c589f4c45d483ca0e80f81a2ac4
title_full	Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH
author_sort	Hanhai Zeng
journal	Journal of Neuroinflammation
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author_browse	Hanhai Zeng Huaijun Chen Min Li Jianfeng Zhuang Yucong Peng Hang Zhou Chaoran Xu Qian Yu Xiongjie Fu Shenglong Cao Jing Cai Feng Yan Gao Chen
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title_sort	autophagy protein nrbf2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with rab7 after sah
callnumber	RC346-429
title_auth	Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH
abstract	Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH.
abstractGer	Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH.
abstract_unstemmed	Abstract Background Neuroinflammation and oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) after subarachnoid hemorrhage (SAH). This study is the first to show that activation of autophagy protein nuclear receptor binding factor 2 (NRBF2) could reduce endoplasmic reticulum stress (ERS)-associated inflammation and oxidative stress after SAH. Methods Male C57BL/6J mice were subjected to endovascular perforation to establish a model of SAH. NRBF2 overexpression adeno-associated virus (AAV), NRBF2 small interfering RNAs (siRNA), lysosomal inhibitor-chloroquine (CQ), and late endosome GTPase Rab7 receptor antagonist-CID1067700 (CID) were used to investigate the role of NRBF2 in EBI after SAH. Neurological tests, brain water content, western blotting and immunofluorescence staining were evaluated. Results Our study found that the level of NRBF2 was increased after SAH and peaked at 24 h after SAH. In addition, we found that the overexpression of NRBF2 significantly improved neurobehavioral scores and reduced ERS, oxidative stress, and neuroinflammation in SAH, whereas the inhibition of NRBF2 exacerbated these phenotypes. In terms of mechanism, NRBF2 overexpression significantly promoted autophagosome maturation, with the downregulation of CHOP, Romo-1, TXNIP, NLRP3, TNF-α, and IL-1β expression through interaction with Rab7. The protective effect of NRBF2 on ERS-associated neuroinflammation and oxidative stress after SAH was eliminated by treatment with CQ. Meanwhile, it was also reversed by intraperitoneal injection of CID. Moreover, the MIT domain of NRBF2 was identified as a critical binding site that interacts with Rab7 and thereby promotes autophagosome maturation. Conclusion Our data provide evidence that the autophagy protein NRBF2 has a protective effect on endoplasmic reticulum stress-associated neuroinflammation and oxidative stress by promoting autophagosome maturation through interactions with Rab7 after SAH.
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title_short	Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH
url	https://doi.org/10.1186/s12974-021-02270-4 https://doaj.org/article/d4653c589f4c45d483ca0e80f81a2ac4 https://doaj.org/toc/1742-2094
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Autophagy protein NRBF2 attenuates endoplasmic reticulum stress-associated neuroinflammation and oxidative stress via promoting autophagosome maturation by interacting with Rab7 after SAH

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