The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways
Urotensin II (UII) could increase blood pressure and heart rate via increased central reactive oxygen species (ROS) levels. We reported previously that hydrogen sulfide (H<sub>2</sub>S) exerts an antihypertensive effect by suppressing ROS production. The aim of the current study is to fu...
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MDPI AG
2022-11-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/11/11/2253 |
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| author | Na-Na Zhang Hai-Yan Xu Xiao-Ni Liu Yi-Fan Chen Chun-Mei Xia Xing-Zhong Wu Ning Lu |
| author_facet | Na-Na Zhang Hai-Yan Xu Xiao-Ni Liu Yi-Fan Chen Chun-Mei Xia Xing-Zhong Wu Ning Lu |
| author_sort | Na-Na Zhang |
| collection | DOAJ |
| description | Urotensin II (UII) could increase blood pressure and heart rate via increased central reactive oxygen species (ROS) levels. We reported previously that hydrogen sulfide (H<sub>2</sub>S) exerts an antihypertensive effect by suppressing ROS production. The aim of the current study is to further examine the effects of endogenous and exogenous H<sub>2</sub>S on UII-induced cardiovascular effects by using an integrated physiology approach. We also use cell culture and molecular biological techniques to explore the inhibitory role of H<sub>2</sub>S on UII-induced cardiovascular effects. In this study, we found that cystathionine-β-synthase (CBS), the main H<sub>2</sub>S synthesizing enzyme in CNS, was expressed in neuronal cells of the rostral ventrolateral medulla (RVLM) area. Cellular distribution of CBS and urotensin II receptor (UT) in SH-SY5Y cells that are confirmed as glutamatergic were identified by immunofluorescent and Western blots assay. In Sprague–Dawley rats, administration of UII into the RVLM resulted in an increase in mean arterial pressure (MAP), heart rate (HR), ROS production, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, and phosphorylation of p47<sup>phox</sup>, extracellular signal-regulated protein kinase (ERK)1/2 and p38MAPK, but not stress-activated protein kinase/Jun N-terminal kinase (SAPK/JNK). These effects of UII were attenuated by application into the RVLM of endogenous (L-cysteine, SAM) or exogenous (NaHS) H<sub>2</sub>S. These results were confirmed in SH-SY5Y cells. UII-induced cardiovascular effects were also significantly abolished by pretreatment with microinjection of Tempol, Apocynin, SB203580, or PD98059 into the RVLM. Preincubated SH-SY5Y cells with Apocynin before administration of UII followed by Western blots assay showed that ROS is in the upstream of p38MAPK/ERK1/2. Ga<sub>o</sub> activation assay in SH-SY5Y cells suggested that H<sub>2</sub>S may exert an inhibitory role on UII-induced cardiovascular effects by inhibiting the activity of Gα<sub>o</sub>. These results suggest that both endogenous and exogenous H<sub>2</sub>S attenuate UII-induced cardiovascular effects via Gα<sub>o</sub>-ROS-p38MAPK/ERK1/2 pathway. |
| first_indexed | 2024-03-09T18:31:46Z |
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| last_indexed | 2024-03-09T18:31:46Z |
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| spelling | doaj.art-f0525611e1604e55bd9c9591d8f078862023-11-24T07:32:12ZengMDPI AGAntioxidants2076-39212022-11-011111225310.3390/antiox11112253The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling PathwaysNa-Na Zhang0Hai-Yan Xu1Xiao-Ni Liu2Yi-Fan Chen3Chun-Mei Xia4Xing-Zhong Wu5Ning Lu6Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaDepartment of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaDepartment of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, ChinaDepartment of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaDepartment of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaDepartment of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaDepartment of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, ChinaUrotensin II (UII) could increase blood pressure and heart rate via increased central reactive oxygen species (ROS) levels. We reported previously that hydrogen sulfide (H<sub>2</sub>S) exerts an antihypertensive effect by suppressing ROS production. The aim of the current study is to further examine the effects of endogenous and exogenous H<sub>2</sub>S on UII-induced cardiovascular effects by using an integrated physiology approach. We also use cell culture and molecular biological techniques to explore the inhibitory role of H<sub>2</sub>S on UII-induced cardiovascular effects. In this study, we found that cystathionine-β-synthase (CBS), the main H<sub>2</sub>S synthesizing enzyme in CNS, was expressed in neuronal cells of the rostral ventrolateral medulla (RVLM) area. Cellular distribution of CBS and urotensin II receptor (UT) in SH-SY5Y cells that are confirmed as glutamatergic were identified by immunofluorescent and Western blots assay. In Sprague–Dawley rats, administration of UII into the RVLM resulted in an increase in mean arterial pressure (MAP), heart rate (HR), ROS production, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, and phosphorylation of p47<sup>phox</sup>, extracellular signal-regulated protein kinase (ERK)1/2 and p38MAPK, but not stress-activated protein kinase/Jun N-terminal kinase (SAPK/JNK). These effects of UII were attenuated by application into the RVLM of endogenous (L-cysteine, SAM) or exogenous (NaHS) H<sub>2</sub>S. These results were confirmed in SH-SY5Y cells. UII-induced cardiovascular effects were also significantly abolished by pretreatment with microinjection of Tempol, Apocynin, SB203580, or PD98059 into the RVLM. Preincubated SH-SY5Y cells with Apocynin before administration of UII followed by Western blots assay showed that ROS is in the upstream of p38MAPK/ERK1/2. Ga<sub>o</sub> activation assay in SH-SY5Y cells suggested that H<sub>2</sub>S may exert an inhibitory role on UII-induced cardiovascular effects by inhibiting the activity of Gα<sub>o</sub>. These results suggest that both endogenous and exogenous H<sub>2</sub>S attenuate UII-induced cardiovascular effects via Gα<sub>o</sub>-ROS-p38MAPK/ERK1/2 pathway.https://www.mdpi.com/2076-3921/11/11/2253urotensin IIH<sub>2</sub>ShypertensionROSERK1/2p38MAPK |
| spellingShingle | Na-Na Zhang Hai-Yan Xu Xiao-Ni Liu Yi-Fan Chen Chun-Mei Xia Xing-Zhong Wu Ning Lu The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways Antioxidants urotensin II H<sub>2</sub>S hypertension ROS ERK1/2 p38MAPK |
| title | The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways |
| title_full | The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways |
| title_fullStr | The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways |
| title_full_unstemmed | The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways |
| title_short | The Inhibitory Role of Hydrogen Sulfide in UII-Induced Cardiovascular Effects and the Underlying Signaling Pathways |
| title_sort | inhibitory role of hydrogen sulfide in uii induced cardiovascular effects and the underlying signaling pathways |
| topic | urotensin II H<sub>2</sub>S hypertension ROS ERK1/2 p38MAPK |
| url | https://www.mdpi.com/2076-3921/11/11/2253 |
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