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Zhu S, Wang X, Chen H, Zhu W, Li X, Cui R, Yi X, Chen X, Li H, Wang G. Hippo (YAP)-autophagy axis protects against hepatic ischemia-reperfusion injury through JNK signaling. Chin Med J (Engl) 2024; 137:657-668. [PMID: 37232477 PMCID: PMC10950187 DOI: 10.1097/cm9.0000000000002727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Hepatic ischemia-reperfusion injury (HIRI) remains a common complication during liver transplantation (LT) in patients. As a key downstream effector of the Hippo pathway, Yes-associated protein (YAP) has been reported to be involved in various physiological and pathological processes. However, it remains elusive whether and how YAP may control autophagy activation during ischemia-reperfusion. METHODS Human liver tissues from patients who had undergone LT were obtained to evaluate the correlation between YAP and autophagy activation. Both an in vitro hepatocyte cell line and in vivo liver-specific YAP knockdown mice were used to establish the hepatic ischemia-reperfusion models to determine the role of YAP in the activation of autophagy and the mechanism of regulation. RESULTS Autophagy was activated in the post-perfusion liver grafts during LT in patients, and the expression of YAP positively correlated with the autophagic level of hepatocytes. Liver-specific knockdown of YAP inhibited hepatocytes autophagy upon hypoxia-reoxygenation and HIRI ( P <0.05). YAP deficiency aggravated HIRI by promoting the apoptosis of hepatocytes both in the in vitro and in vivo models ( P <0.05). Attenuated HIRI by overexpression of YAP was diminished after the inhibition of autophagy with 3-methyladenine. In addition, inhibiting autophagy activation by YAP knockdown exacerbated mitochondrial damage through increasing reactive oxygen species ( P <0.05). Moreover, the regulation of autophagy by YAP during HIRI was mediated by AP1 (c-Jun) N-terminal kinase (JNK) signaling through binding to the transcriptional enhanced associate domain (TEAD). CONCLUSIONS YAP protects against HIRI by inducing autophagy via JNK signaling that suppresses the apoptosis of hepatocytes. Targeting Hippo (YAP)-JNK-autophagy axis may provide a novel strategy for the prevention and treatment of HIRI.
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Affiliation(s)
- Shuguang Zhu
- Department of Hepatic Surgery, Liver Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Xiaowen Wang
- Department of Hepatology lab, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Haoqi Chen
- Department of General Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Wenfeng Zhu
- Department of Organ Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Xuejiao Li
- Department of Hepatology lab, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Ruiwen Cui
- Department of Renal Transplantation, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510630, China
| | - Xiaomeng Yi
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Xiaolong Chen
- Department of Organ Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Hua Li
- Department of Hepatic Surgery, Liver Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Genshu Wang
- Department of Hepatic Surgery, Liver Transplantation, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510630, China
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Patel N, Johnson MA, Vapniarsky N, Van Brocklin MW, Williams TK, Youngquist ST, Ford R, Ewer N, Neff LP, Hoareau GL. Elamipretide mitigates ischemia-reperfusion injury in a swine model of hemorrhagic shock. Sci Rep 2023; 13:4496. [PMID: 36934127 PMCID: PMC10024723 DOI: 10.1038/s41598-023-31374-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/10/2023] [Indexed: 03/20/2023] Open
Abstract
ischemia-reperfusion injury (IRI) after hemorrhage is potentiated by aortic occlusion or resuscitative endovascular balloon occlusion of the aorta (REBOA). Given the central role of mitochondrial injury in shock, we hypothesized that Elamipretide, a peptide that protects mitochondria, would mitigate IRI after hemorrhagic shock and REBOA. Twelve pigs were subjected to hemorrhagic shock and 45 min of REBOA. After 25 min of REBOA, animals received either saline or Elamipretide. Animals were transfused with autologous blood during balloon deflation, and pigs were resuscitated with isotonic crystalloids and norepinephrine for 4.25 h. Elamipretide-treated animals required less crystalloids than the controls (62.5 [50-90] and 25 [5-30] mL/kg, respectively), but similar amounts of norepinephrine (24.7 [8.6-39.3] and 9.7 [2.1-12.5] mcg/kg, respectively). Treatment animals had a significant reduction in serum creatinine (control: 2.7 [2.6-2.8]; Elamipretide: 2.4 [2.4-2.5] mg/dL; p = 0.04), troponin (control: 3.20 [2.14-5.47] ng/mL, Elamipretide: 0.22 [0.1-1.91] ng/mL; p = 0.03), and interleukin-6 concentrations at the end of the study. There were no differences in final plasma lactate concentration. Elamipretide reduced fluid requirements and protected the kidney and heart after profound IRI. Further understanding the subcellular consequences of REBOA and mitochondrial rescue will open new therapeutic avenues for patients suffering from IRI after hemorrhage.
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Affiliation(s)
- N Patel
- Department of Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - M A Johnson
- Department of Emergency Medicine, University of Utah, Salt Lake City, UT, USA
| | - N Vapniarsky
- Department of Pathology, Microbiology, and Immunology, University of California-Davis, Davis, CA, USA
| | - M W Van Brocklin
- Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - T K Williams
- Department of Vascular/Endovascular Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - S T Youngquist
- Department of Emergency Medicine, University of Utah, Salt Lake City, UT, USA
| | - R Ford
- Department of Emergency Medicine, University of Utah, Salt Lake City, UT, USA
| | - N Ewer
- Department of Emergency Medicine, University of Utah, Salt Lake City, UT, USA
| | - L P Neff
- Department of Pediatric Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - G L Hoareau
- Department of Emergency Medicine, University of Utah, Salt Lake City, UT, USA.
- Nora Eccles-Harrison Cardiovascular Research and Training Institute, Salt Lake City, UT, USA.
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Du HB, Jiang SB, Zhao ZA, Zhang H, Zhang LM, Wang Z, Guo YX, Zhai JY, Wang P, Zhao ZG, Niu CY, Jiang LN. TLR2/TLR4-Enhanced TIPE2 Expression Is Involved in Post-Hemorrhagic Shock Mesenteric Lymph-Induced Activation of CD4+T Cells. Front Immunol 2022; 13:838618. [PMID: 35572554 PMCID: PMC9101470 DOI: 10.3389/fimmu.2022.838618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose Post hemorrhagic shock mesenteric lymph (PHSML) return contributes to CD4+ T cell dysfunction, which leads to immune dysfunction and uncontrolled inflammatory response. Tumor necrosis factor α induced protein 8 like-2 (TIPE2) is one of the essential proteins to maintain the immune homeostasis. This study investigated the role of TIPE2 in regulation of CD4+ T lymphocyte function in interaction of PHSML and TLR2/TLR4. Methods The splenic CD4+ T cells were isolated from various mice (WT, TLR2-/-, TLR4-/-) by immunomagnetic beads, and stimulated with PHSML, normal lymphatic fluid (NML), respectively. Application of TIPE2-carrying interfering fragments of lentivirus were transfected to WT, TLR4-/-, and TLR2-/- CD4+ T cells, respectively. After interference of TIPE2, they were stimulated with PHSML and NML for the examinations of TIPE2, TLR2, and TLR4 mRNA expressions, proliferation, activation molecules on surface, and cytokine secretion function. Results PHSML stimulation significantly upregulated TIPE2, TLR2, and TLR4 mRNA expressions, decreased proliferation, CD25 expression, and IFN-γ secretion, and increased the secretion ability of IL-4 in WT CD4+ T cells. TIPE2 silencing enhanced proliferative capacity, upregulated CD25 expression, and increased IFNγ secretion in CD4+ T cells. PHSML stimulated TLR2-/-CD4+ T or TLR4-/-CD4+ T cells of which TIPE2 were silenced. TLR2 or TLR4 knockout attenuated PHSML-induced CD4+ T cells dysfunction; PHSML stimulation of silent TIPE2-expressing TLR2-/-CD4+ T or TLR4-/-CD4+ T revealed that the coexistence of low TIPE2 expression with lack of TLR2 or TLR4 eliminated this beneficial effect. Conclusion TIPE2 improves the PHSML-mediated CD4+T cells dysfunction by regulating TLR2/TLR4 pathway, providing a new intervention target following hemorrhagic shock-induced immune dysfunction.
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Affiliation(s)
- Hui-Bo Du
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Sun-Ban Jiang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Zhen-Ao Zhao
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Hong Zhang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Li-Min Zhang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Zhao Wang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Ya-Xiong Guo
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Jia-Yi Zhai
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Peng Wang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
| | - Zi-Gang Zhao
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
| | - Chun-Yu Niu
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
- College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Li-Na Jiang
- Institute of Microcirculation, Hebei North University, Zhangjiakou, China
- Hebei Key Laboratory of Critical Disease Mechanism and Intervention, Shijiazhuang, China
- Key Laboratory of Microcirculation and Shock in Zhangjiakou City, Zhangjiakou, China
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Controlled Hemorrhage Sensitizes Angiotensin II-Elicited Hypertension through Activation of the Brain Renin-Angiotensin System Independently of Endoplasmic Reticulum Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6371048. [PMID: 35069977 PMCID: PMC8776443 DOI: 10.1155/2022/6371048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/08/2021] [Indexed: 11/25/2022]
Abstract
Hemorrhagic shock is associated with activation of renin-angiotensin system (RAS) and endoplasmic reticulum stress (ERS). Previous studies demonstrated that central RAS activation produced by various challenges sensitizes angiotensin (Ang) II-elicited hypertension and that ERS contributes to the development of neurogenic hypertension. The present study investigated whether controlled hemorrhage could sensitize Ang II-elicited hypertension and whether the brain RAS and ERS mediate this sensitization. Results showed that hemorrhaged (HEM) rats had a significantly enhanced hypertensive response to a slow-pressor infusion of Ang II when compared to sham HEM rats. Treatment with either angiotensin-converting enzyme (ACE) 1 inhibitor, captopril, or ACE2 activator, diminazene, abolished the HEM-induced sensitization of hypertension. Treatment with the ERS agonist, tunicamycin, in sham HEM rats also sensitized Ang II-elicited hypertension. However, blockade of ERS with 4-phenylbutyric acid in HEM rats did not alter HEM-elicited sensitization of hypertension. Either HEM or ERS activation produced a greater reduction in BP after ganglionic blockade, upregulated mRNA and protein expression of ACE1 in the hypothalamic paraventricular nucleus (PVN), and elevated plasma levels of Ang II but reduced mRNA expression of the Ang-(1-7) receptor, Mas-R, and did not alter plasma levels of Ang-(1-7). Treatment with captopril or diminazene, but not phenylbutyric acid, reversed these changes. No treatments had effects on PVN protein expression of the ERS marker glucose-regulated protein 78. The results indicate that controlled hemorrhage sensitizes Ang II-elicited hypertension by augmenting RAS prohypertensive actions and reducing RAS antihypertensive effects in the brain, which is independent of ERS mechanism.
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5
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Chen L, Ma K, Fan H, Wang X, Cao T. Exogenous hydrogen sulfide protects against hepatic ischemia/reperfusion injury by inhibiting endoplasmic reticulum stress and cell apoptosis. Exp Ther Med 2021; 22:799. [PMID: 34093755 PMCID: PMC8170662 DOI: 10.3892/etm.2021.10231] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/05/2021] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to explore the effect of exogenous hydrogen sulphide (H2S) on endoplasmic reticulum (ER) stress (ERS) in a rat model of hepatic ischemia/reperfusion (I/R) injury. A total of 48 Sprague-Dawley rats were randomly divided into four groups (n=12/group) as follows: Sham, I/R, I/R preceded by NaHS (I/R-NaHS) and I/R preceded by L-C-propargylglycine (PAG), a H2S inhibitor (I/R-PAG). With the exception of the sham group, the rats in the other groups were subjected to 30 min hepatic warm ischemia followed by reperfusion for 6 or 12 h. Hepatic function was evaluated by serum concentrations of alanine aminotransferase (ALT). Apoptosis of hepatic cells was assessed by TUNEL staining and measurement of caspase-12 expression. The expression levels of ERS-associated proteins and mRNAs of pancreatic ER eukaryotic translation initiation factor-2a kinase (PERK), activating transcription factor-6 (ATF6), glucose-regulated protein (GRP) 78, TNF-receptor-associated factor (TRAF)-2, C/EBP homologous protein (CHOP) and caspase-12 were also measured by western blotting and reverse transcription-quantitative PCR. The serum concentrations of ALT in the I/R and I/R-PAG groups were found to be significantly higher compared with those in the sham and I/R-NaHS groups after 6 h of reperfusion; in addition, the ALT level returned to normal in the I/R group, while it increased further in the I/R-PAG group after 12 h of reperfusion. A higher cell apoptosis rate was observed in the I/R and I/R-PAG groups and the highest cell apoptosis rate was observed in the I/R-PAG group; correspondingly, the expression of caspase-12 was increased in the I/R and I/R-PAG groups. H2S appeared to significantly attenuate hepatic I/R-induced ERS response, as indicated by the decreased expression of ATF6, PERK, GRP78, TRAF2 and CHOP. Endogenous H2S may serve a hepatoprotective function after I/R, and inhibition of endogenous H2S results in aggravation of I/R damage. Exogenous H2S was shown to inhibit ERS-related gene expression, leading to suppression of inflammatory reaction and improvement of I/R damage. Therefore, exogenous H2S has therapeutic potential to alleviate hepatic I/R injury.
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Affiliation(s)
- Liang Chen
- Department of General Surgery, Affiliated Huadu Hospital of Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong 510800, P.R. China
| | - Keqiang Ma
- Department of General Surgery, Affiliated Huadu Hospital of Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong 510800, P.R. China
| | - Haining Fan
- Department of Hepatopancreatobiliary Surgery, the Affiliated Hospital of Qinghai University, Xining, Qinghai 810001, P.R. China
| | - Xiaolong Wang
- Department of General Surgery, Affiliated Huadu Hospital of Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong 510800, P.R. China
| | - Tiansheng Cao
- Department of General Surgery, Affiliated Huadu Hospital of Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong 510800, P.R. China
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Wang P, Jiang LN, Wang C, Li Y, Yin M, Du HB, Zhang H, Fan ZH, Liu YX, Zhao M, Kang AL, Feng DY, Li SG, Niu CY, Zhao ZG. Estradiol-induced inhibition of endoplasmic reticulum stress normalizes splenic CD4 + T lymphocytes following hemorrhagic shock. Sci Rep 2021; 11:7508. [PMID: 33820957 PMCID: PMC8021564 DOI: 10.1038/s41598-021-87159-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/24/2021] [Indexed: 12/24/2022] Open
Abstract
The aim is to investigate that 17β-estradiol (E2)/estrogen receptors (ERs) activation normalizes splenic CD4 + T lymphocytes proliferation and cytokine production through inhibition of endoplasmic reticulum stress (ERS) following hemorrhage. The results showed that hemorrhagic shock (hemorrhage through femoral artery, 38–42 mmHg for 90 min followed by resuscitation of 30 min and subsequent observation period of 180 min) decreased the CD4+ T lymphocytes proliferation and cytokine production after isolation and incubation with Concanavalin A (5 μg/mL) for 48 h, induced the splenic injury with evidences of missed contours of the white pulp, irregular cellular structure, and typical inflammatory cell infiltration, upregulated the expressions of ERS biomarkers 78 kDa glucose-regulated protein (GRP78) and activating transcription factor 6 (ATF6). Either E2, ER-α agonist propyl pyrazole triol (PPT) or ERS inhibitor 4-Phenylbutyric acid administration normalized these parameters, while ER-β agonist diarylpropionitrile administration had no effect. In contrast, administrations of either ERs antagonist ICI 182,780 or G15 abolished the salutary effects of E2. Likewise, ERS inducer tunicamycin induced an adverse effect similarly to that of hemorrhagic shock in sham rats, and aggravated shock-induced effects, also abolished the beneficial effects of E2 and PPT, respectively. Together, the data suggest that E2 produces salutary effects on CD4+ T lymphocytes function, and these effects are mediated by ER-α and GPR30, but not ER-β, and associated with the attenuation of hemorrhagic shock-induced ERS.
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Affiliation(s)
- Peng Wang
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Li-Na Jiang
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China
| | - Chen Wang
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Ying Li
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Meng Yin
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Hui-Bo Du
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China
| | - Hong Zhang
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Ze-Hua Fan
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Yan-Xu Liu
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Meng Zhao
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - An-Ling Kang
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Ding-Ya Feng
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China
| | - Shu-Guang Li
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China.,Department of Gastrointestinal Oncological Surgery, the First Affiliated Hospital of Hebei North University, Zhangjiakou, People's Republic of China
| | - Chun-Yu Niu
- Basic Medical College, Hebei Medical University, Zhongshan East Road 361, Shijiazhuang, Hebei, 075000, People's Republic of China. .,Key Laboratory of Critical Disease Mechanism and Intervention in Hebei Province, Shijiazhuang and Zhangjiakou, People's Republic of China.
| | - Zi-Gang Zhao
- Institute of Microcirculation, Hebei North University, Diamond South Road 11, Zhangjiakou, Hebei, 075000, People's Republic of China. .,Pathophysiology Experimental Teaching Center of Basic Medical College, Hebei North University, Zhangjiakou, People's Republic of China. .,Key Laboratory of Critical Disease Mechanism and Intervention in Hebei Province, Shijiazhuang and Zhangjiakou, People's Republic of China.
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7
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Obert DP, Wolpert AK, Grimm NL, Korff S. ER stress preconditioning ameliorates liver damage after hemorrhagic shock and reperfusion. Exp Ther Med 2021; 21:248. [PMID: 33603856 PMCID: PMC7851603 DOI: 10.3892/etm.2021.9679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/28/2020] [Indexed: 12/22/2022] Open
Abstract
The mismatch of oxygen supply and demand during hemorrhagic shock disturbs endoplasmic reticulum (ER) homeostasis. The resulting accumulation of unfolded proteins in the ER lumen, which is a condition that is defined as ER stress, triggers the unfolded protein response (UPR). Since the UPR influences the extent of organ damage following hemorrhagic shock/reperfusion (HS/R) and mediates the protective effects of stress preconditioning before ischemia-reperfusion injury, the current study investigated the mechanisms of ER stress preconditioning and its impact on post-hemorrhagic liver damage. Male C56BL/6-mice were injected intraperitoneally with the ER stress inductor tunicamycin (TM) or its drug vehicle 48 h prior to being subjected to a 90 min pressure-controlled hemorrhagic shock (30±5 mmHg). A period of 14 h after hemorrhagic shock induction, mice were sacrificed. Hepatocellular damage was quantified by analyzing hepatic transaminases and hematoxylin-eosin stained liver tissue sections. Additionally, the topographic expression patterns of the ER stress marker binding immunoglobulin protein (BiP), UPR signaling pathways, and the autophagy marker Beclin1 were evaluated. TM injection significantly increased BiP expression and modified the topographic expression patterns of the UPR signaling proteins. In addition, immunohistochemical analysis of Beclin1 revealed an increased pericentral staining intensity following TM pretreatment. The histologic analysis of hepatocellular damage demonstrated a significant reduction in cell death areas in HS/R+TM (P=0.024). ER stress preconditioning influences the UPR and alleviates post-hemorrhagic liver damage. The beneficial effects were, at least partially, mediated by the upregulation of BiP and autophagy induction. These results underscore the importance of the UPR in the context of HS/R and may help identify novel therapeutic targets.
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Affiliation(s)
- David Peter Obert
- Department of Anesthesiology and Intensive Care, School of Medicine, Technical University of Munich, 81675 Munich, Germany.,Department of Trauma Surgery, University of Heidelberg, 69118 Heidelberg, Germany
| | - Alexander Karl Wolpert
- Department of Trauma Surgery, University of Heidelberg, 69118 Heidelberg, Germany.,Department of Trauma Surgery, Paracelsus Medical University, 90471 Nuremberg, Germany
| | - Nathan Lewis Grimm
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27708, USA
| | - Sebastian Korff
- Department of Trauma Surgery, University of Heidelberg, 69118 Heidelberg, Germany.,Department of Orthopaedic Surgery, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany
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8
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Jiao Z, Liu X, Ma Y, Ge Y, Zhang Q, Liu B, Wang H. Adipose-Derived Stem Cells Protect Ischemia-Reperfusion and Partial Hepatectomy by Attenuating Endoplasmic Reticulum Stress. Front Cell Dev Biol 2020; 8:177. [PMID: 32266259 PMCID: PMC7098915 DOI: 10.3389/fcell.2020.00177] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/03/2020] [Indexed: 12/11/2022] Open
Abstract
Ischemia-reperfusion (IR) is an inevitable complication of liver surgery. Recent studies indicate a critical role of endoplasmic reticulum stress (ERS) in hepatic IR. Mesenchymal stem cells (MSCs) have proven to be an effective tool for tissue regeneration and treatment of various diseases, including that of the liver. However, the mechanisms underlying the therapeutic effects of stem cells on hepatic IR injury (IRI) are still poorly understood, especially in the context of ERS. In this study, we established a porcine model of hepatic IRI and partial hepatectomy, and transplanted the animals with adipose-derived mesenchymal stem cells (ADSCs) isolated from miniature pigs. ADSCs not only alleviated the pathological changes in the liver parenchyma following IRI, but also protected the resident hepatocytes from damage. Mechanistically, the ADSCs significantly downregulated ERS-related proteins, including GRP78, p-eIF2α, ATF6 and XBP1s, as well as the proteins involved in ERS-induced apoptosis like p-JNK, ATF4 and CHOP. Taken together, ADSCs can alleviate hepatic IRI by inhibiting ERS and its downstream apoptotic pathways in the hepatocytes, indicating its therapeutic potential in liver diseases.
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Affiliation(s)
- Zhihui Jiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Xiaoning Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yajun Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yansong Ge
- College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qianzhen Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Boyang Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Hongbin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
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What'd New in Shock, November 2019? Shock 2019; 52:477-480. [PMID: 31613864 DOI: 10.1097/shk.0000000000001423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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