1
|
Schreckenberg R, Klein J, Kutsche HS, Schulz R, Gömöri K, Bencsik P, Benczik B, Ágg B, Sághy É, Ferdinandy P, Schlüter KD. Ischaemic post-conditioning in rats: Responder and non-responder differ in transcriptome of mitochondrial proteins. J Cell Mol Med 2020; 24:5528-5541. [PMID: 32297702 PMCID: PMC7214154 DOI: 10.1111/jcmm.15209] [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: 12/20/2019] [Revised: 02/20/2020] [Accepted: 03/01/2020] [Indexed: 12/14/2022] Open
Abstract
Ischaemic post‐conditioning (IPoC) is a clinical applicable procedure to reduce reperfusion injury. Non‐responsiveness to IPoC possibly caused by co‐morbidities limits its clinical attractiveness. We analysed differences in the expression of mitochondrial proteins between IPoC responder (IPoC‐R) and non‐responder (IPoC‐NR). Eighty rats were randomly grouped to sham, ischaemia/reperfusion (I/R), IPoC or ischaemic pre‐conditioning (IPC, as positive cardioprotective intervention) in vivo. Infarct sizes were quantified by plasma troponin I levels 60 minutes after reperfusion. After 7 days, rats were sacrificed and left ventricular tissue was taken for post hoc analysis. The transcriptome was analysed by qRT‐PCR and small RNA sequencing. Key findings were verified by immunoblots. I/R increased plasma troponin I levels compared to Sham. IPC reduced troponin I compared to I/R, whereas IPoC produced either excellent protection (IPoC‐R) or no protection (IPoC‐NR). Twenty‐one miRs were up‐regulated by I/R and modified by IPoC. qRT‐PCR analysis revealed that IPoC‐R differed from other groups by reduced expression of arginase‐2 and bax, whereas the mitochondrial uncoupling protein (UCP)‐2 was induced in IPC and IPoC‐R. IPoC‐R and IPoC‐NR synergistically increased the expression of non‐mitochondrial proteins like VEGF and SERCA2a independent of the infarct size. Cardiac function was more closely linked to differences in mitochondrial proteins than on regulation of calcium‐handling proteins. In conclusion, healthy rats could not always be protected by IPoC. IPoC‐NR displayed an incomplete responsiveness which is reflected by different changes in the mitochondrial transcriptome compared to IPoC‐R. This study underlines the importance of mitochondrial proteins for successful long‐term outcome.
Collapse
Affiliation(s)
| | - Johann Klein
- Department of Physiology, Justus Liebig-University, Gießen, Germany
| | | | - Rainer Schulz
- Department of Physiology, Justus Liebig-University, Gießen, Germany
| | - Kamilla Gömöri
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Péter Bencsik
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Bettina Benczik
- Cardiometabolic and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bence Ágg
- Pharmahungary Group, Szeged, Hungary.,Cardiometabolic and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Éva Sághy
- Cardiometabolic and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary.,Cardiometabolic and MTA-SE System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | | |
Collapse
|
2
|
Brandão RI, Gomes RZ, Lopes L, Linhares FS, Vellosa JCR, Paludo KS. Remote post-conditioning and allopurinol reduce ischemia-reperfusion injury in an infra-renal ischemia model. Ther Adv Cardiovasc Dis 2018; 12:341-349. [PMID: 30295166 PMCID: PMC6266249 DOI: 10.1177/1753944718803309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND: The aim of this study was to evaluate the effects of the antioxidant allopurinol and ischemic post-conditioning on the deleterious effects of ischemia followed by reperfusion (I/R) in a standardized model of ischemia involving infra-renal aortic occlusion in rats. METHODS: The animals were randomly divided into five groups: (A) animals not subjected to ischemia; (B) animals subjected to 2 h of ischemia and reperfusion only once; (C) animals given an allopurinol dose by gavage, then subjected to 2 h of ischemia and reperfusion only once; (D) animals subjected to 2 h of ischemia and post-conditioning and (E) animals that received allopurinol, then subjected to 2 h of ischemia and post-conditioning. The blood samples and small intestine segments were harvested for analysis after 3 days. RESULTS: The protective effects of the use of allopurinol and ischemic post-conditioning were observed by measuring aspartate aminotransferase, alanine aminotransferase and lactate levels. The benefits of post-conditioning were evident from the total antioxidant capacity and creatinine levels, but these could not ascertain any positive effects of allopurinol. The histological analysis of mesentery revealed that both methods were effective in minimizing the harmful effects of the ischemia and reperfusion process. CONCLUSION: Individual protocols significantly reduced I/R systemic injuries, but no additional protection was observed when the two strategies were combined.
Collapse
Affiliation(s)
- Rafael Inácio Brandão
- Department of Structural Biology, Molecular and Genetics, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Ricardo Zanetti Gomes
- Department of Medicine, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Luana Lopes
- Department of Medicine, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Filipe Silva Linhares
- Department of Medicine, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | | | - Katia Sabrina Paludo
- Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa, Avenida General Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Paraná, 84030-900, Brazil
| |
Collapse
|
3
|
dos Santos CHM, Aydos RD, Nogueira E, Miiji LNO, Cassino PC, Alves II, Calheiros NM, Garcia M. Ischemic Postconditioning Assessment in the Liver of Rats Undergoing Mesenteric Ischemia and Reperfusion. Braz J Cardiovasc Surg 2017; 31:287-290. [PMID: 27849300 PMCID: PMC5094425 DOI: 10.5935/1678-9741.20160068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/04/2016] [Indexed: 12/17/2022] Open
Abstract
Introduction Ischemic postconditioning is a method that shows evidence of efficacy in
minimizing reperfusion injury; however, its effectiveness in preventing
injuries in distant organs is still unknown, especially in those who have
undergone mesenteric ischemia and reperfusion. Objective To evaluate the effect of ischemic postconditioning in preventing reperfusion
injury in the liver of rats submitted to mesenteric ischemia and
reperfusion, comparing two different methods of ischemic
postconditioning. Methods 30 Wistar male rats were used, distributed into three groups: Group A: Ten
rats submitted to intestinal ischemia for 30 minutes followed by reperfusion
for 60 minutes; Group B: Ten rats subjected to ischemia and reperfusion;
after ischemia, two cycles of reperfusion (two minutes each) interleaved
with two cycles of ischemia (two minutes each); and Group C: Ten rats
subjected to ischemia and reperfusion; after ischemia, four cycles of
reperfusion (30 seconds each) interspersed with four cycles of ischemia (30
seconds each). After the experiment, the left lobe of the liver was resected
for subsequent histological analysis, using the following classification:
grade 1 - centrilobular congestion; grade 2 - centrilobular congestion with
some degeneration of hepatocytes in one or two central veins; and grade 3 -
multifocal centrilobular congestion and degeneration of portal
hepatocytes. Results The mean degree of liver damage found was 1.8 in group A, 1.7 in group B and
1.3 in group C. There was no statistically significant difference between
the groups. Conclusion Ischemic postconditioning was unable to minimize reperfusion injury in rats
undergoing mesenteric ischemia and reperfusion.
Collapse
Affiliation(s)
| | - Ricardo Dutra Aydos
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Ed Nogueira
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Pedro Carvalho Cassino
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Isadora Ishaq Alves
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Milena Garcia
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| |
Collapse
|
4
|
Ozkisacik S, Erdem AO, Etensel B, Tataroglu C, Serter M, Yazici M. Short-interval postconditioning protects the bowel against ischaemia-reperfusion injury in rats. J Int Med Res 2017; 45:1036-1041. [PMID: 28553765 PMCID: PMC5536428 DOI: 10.1177/0300060517708921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective Acute mesenteric ischaemia leads to intestinal damage. Restoration of blood flow results in further damage to tissue, which is called reperfusion injury. This study aimed to investigate the protective effects of short-interval postconditioning and to determine the optimal interval for reperfusion in an experimental rat model of intestinal ischaemia. Methods Forty adult male Wistar rats were grouped as follows: sham (Sh), ischaemia + reperfusion (IR), ischaemia + postconditioning for 5 seconds (PC5), ischaemia + postconditioning for 10 seconds (PC10), and ischaemia + postconditioning for 20 seconds (PC20). For postconditioning, 10 cycles of reperfusion (5, 10, or 20 seconds) interspersed by 10 cycles of 10 seconds of ischaemia were performed. Blood glutathione reductase (GR) and glutathione peroxidase (GPx) levels were measured. Intestinal tissue damage was assessed histopathologically. Results GR levels were significantly higher in the PC5 group than in the IR group (37.7 ± 9.0 vs. 18.5 ± 2.0 min/g Hb). GPx levels were significantly higher in the PC10 group than in the IR group (43.2 ± 9.2 vs. 15.9 ± 4.6 U/g Hb). The histopathological score was significantly lower in the PC5 group (1.1 ± 0.1) than in the IR group (2.1 ± 0.2). Conclusion Short-interval postconditioning reduces reperfusion injury in the ischaemic bowel and the optimal interval for reperfusion is 5 seconds. The long-term effects of short-interval postconditioning and the optimal reperfusion interval in intestinal ischaemia–reperfusion in rats need to be investigated.
Collapse
Affiliation(s)
- Sezen Ozkisacik
- 1 Department of Pediatric Surgery, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Ali Onur Erdem
- 1 Department of Pediatric Surgery, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Barlas Etensel
- 1 Department of Pediatric Surgery, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Canten Tataroglu
- 2 Department of Pathology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Mukadder Serter
- 3 Department of Biochemistry, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Mesut Yazici
- 1 Department of Pediatric Surgery, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| |
Collapse
|