1
|
Li F, Yang Z, Stone C, Ding JY, Previch L, Shen J, Ji Y, Geng X, Ding Y. Phenothiazines Enhance the Hypothermic Preservation of Liver Grafts: A Pilot in Vitro Study. Cell Transplant 2019; 28:318-327. [PMID: 30666889 PMCID: PMC6425111 DOI: 10.1177/0963689718824559] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In vitro liver conservation is an issue of ongoing critical importance in graft transplantation. In this study, we investigated the possibility of augmenting the standard pre-transplant liver conservation protocol (University of Wisconsin (UW) cold solution) with the phenothiazines chlorpromazine and promethazine. Livers from male Sprague-Dawley rats were preserved either in UW solution alone, or in UW solution plus either 2.4, 3.6, or 4.8 mg chlorpromazine and promethazine (C+P, 1:1). The extent of liver injury following preservation was determined by alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities, the ratio of AST/ALT, morphological changes as assessed by hematoxylin-eosin staining, apoptotic cell death as determined by ELISA, and by expression of the apoptotic regulatory proteins BAX and Bcl-2. Levels of glucose (GLU) and lactate dehydrogenase (LDH) in the preservation liquid were determined at 3, 12, and 24 h after incubation to assess glucose metabolism. Oxidative stress was assessed by levels of superoxide dismutase (SOD), reactive oxygen species (ROS), and malondialdehyde (MDA), and inflammatory cytokine expression was evaluated with Western blotting. C+P augmentation induced significant reductions in ALT and AST activities; the AST/ALT ratio; as well as in cellular swelling, vacuolar degeneration, apoptosis, and BAX expression. These changes were associated with lowered levels of GLU and LDH; decreased expression of SOD, MDA, ROS, TNF-α, and IL-1β; and increased expression of Bcl-2. We conclude that C+P augments hypothermic preservation of liver tissue by protecting hepatocytes from ischemia-induced oxidative stress and metabolic dysfunction. This result provides a basis for improvement of the current preservation strategy, and thus for the development of a more effective graft conservation method.
Collapse
Affiliation(s)
- Fengwu Li
- 1 China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Zhiying Yang
- 2 Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Christopher Stone
- 3 Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jamie Y Ding
- 3 Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Lauren Previch
- 3 Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jiamei Shen
- 1 China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,3 Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Yu Ji
- 4 Department of General Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- 1 China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- 3 Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| |
Collapse
|
2
|
Coskun A, Baykal AT, Oztug M, Kazan D, Kaya E, Emiroglu R, Yılmaz S, Dundar HZ, Akgoz M, Berber I, Aktas H, Bilsel G, Karaosmanoglu K, Çetiner B, Arslan C, Yurtsever I, Yazıcı C. Proteomic Analysis of Liver Preservation Solutions Prior to Liver Transplantation. CURR PROTEOMICS 2019. [DOI: 10.2174/1570164615666180905104543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Objective: Transplantation is the preferred treatment for patients with end-stage liver diseases. However, in clinical practice, functional preservation of the liver is a major concern before the transplantation. Although various protective solutions are used (in combination with hypothermia), the functional preservation time for liver is still limited to hours. We analyzed the preservation medium to detect the proteins released from the liver during storage period.
Material/Methods:
Samples were collected from the pre-transplant preservation mediums of 23 liver donors. For all donors, the cases involved Donation after Brain Death (DBD). 2D-PAGE and LCMSMS methodologies were used to detect the proteins and peptides from the preservation mediums.
Results:
A total of 198 proteins originating from the liver were detected.
Conclusion:
The data provide valuable insights into biomarkers that may be used to evaluate organ injury, functional status, and suitability for transplantation. Additionally, the findings could be valuable for the development of new strategies for effective preservation of solid organs prior to transplantation.
Collapse
Affiliation(s)
- Abdurrahman Coskun
- Department of Medical Biochemistry, School of Medicine, Acibadem University, Istanbul, Turkey
| | - Ahmet Tarik Baykal
- Department of Medical Biochemistry, School of Medicine, Acibadem University, Istanbul, Turkey
| | - Merve Oztug
- TUBITAK UME (National Metrology Institute), Gebze, Turkey
| | - Dilek Kazan
- Department of Bioengineering, Engineering Faculty, Marmara University, Istanbul, Turkey
| | - Ekrem Kaya
- Department of General Surgery, School of Medicine, Uludag University, Bursa, Turkey
| | - Remzi Emiroglu
- Department of General Surgery, School of Medicine,Acibadem University, Istanbul, Turkey
| | - Sezai Yılmaz
- Department of General Surgery, School of Medicine, Inonu University, Malatya, Turkey
| | - Halit Ziya Dundar
- Department of General Surgery, School of Medicine, Uludag University, Bursa, Turkey
| | - Muslum Akgoz
- TUBITAK UME (National Metrology Institute), Gebze, Turkey
| | - Ibrahim Berber
- Department of General Surgery, School of Medicine,Acibadem University, Istanbul, Turkey
| | - Hikmet Aktas
- Vocational School of Health Services, Acibadem University Istanbul, Turkey
| | - Gokhan Bilsel
- TUBITAK UME (National Metrology Institute), Gebze, Turkey
| | - Kubra Karaosmanoglu
- Department of Bioengineering, Engineering Faculty, Marmara University, Istanbul, Turkey
| | - Banu Çetiner
- Department of Medical Biochemistry, School of Medicine, Acibadem University, Istanbul, Turkey
| | - Cansu Arslan
- Department of Medical Biochemistry, School of Medicine, Acibadem University, Istanbul, Turkey
| | - Ilknur Yurtsever
- Regenerative and Restorative Medicine Research Center, Medipol University, Istanbul, Turkey
| | - Cevat Yazıcı
- Department of Medical Biochemistry, School of Medicine, Erciyes University, Kayseri, Turkey
| |
Collapse
|
3
|
Miyawaki A, Mitsuhara Y, Orimoto A, Nakayasu Y, Tsunoda SI, Obana M, Maeda M, Nakayama H, Yoshioka Y, Tsutsumi Y, Fujio Y. Moesin is activated in cardiomyocytes in experimental autoimmune myocarditis and mediates cytoskeletal reorganization with protrusion formation. Am J Physiol Heart Circ Physiol 2016; 311:H476-86. [PMID: 27342875 DOI: 10.1152/ajpheart.00180.2016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 06/16/2016] [Indexed: 12/19/2022]
Abstract
Acute myocarditis is a self-limiting disease. Most patients with myocarditis recover without cardiac dysfunction in spite of limited capacity of myocardial regeneration. Therefore, to address intrinsic reparative machinery of inflamed hearts, we investigated the cellular dynamics of cardiomyocytes in response to inflammation using experimental autoimmune myocarditis (EAM) model. EAM was induced by immunization of BALB/c mice with α-myosin heavy chain peptides twice. The inflammatory reaction was evoked with myocardial damage with the peak at 3 wk after the first immunization (EAM3w). Morphological and functional restoration started from EAM3w, when active protrusion formation, a critical process of myocardial healing, was observed in cardiomyocytes. Shotgun proteomics revealed that cytoskeletal proteins were preferentially increased in cardiomyocytes at EAM3w, compared with preimmunized (EAM0w) hearts, and that moesin was the most remarkably upregulated among them. Immunoblot analyses demonstrated that the expression of both total and phosphorylated moesin was upregulated in isolated cardiomyocytes from EAM3w hearts. Immunofluorescence staining showed that moesin was localized at cardiomyocyte protrusions at EAM3w. Adenoviral vectors expressing wild-type, constitutively active and inactive form of moesin (wtMoesin, caMoesin, and iaMoesin, respectively) were transfected in neonatal rat cardiomyocytes. The overexpression of wtMoesin and caMoesin resulted in protrusion formation, while not iaMoesin. Finally, we found that cardiomyocyte protrusions were accompanied by cell-cell contact formation. The expression of moesin was upregulated in cardiomyocytes under inflammation, inducing protrusion formation in a phosphorylation-dependent fashion. Moesin signal could be a novel therapeutic target that stimulates myocardial repair by promoting contact formation of cardiomyocytes.
Collapse
Affiliation(s)
- Akimitsu Miyawaki
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Yusuke Mitsuhara
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Aya Orimoto
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Yusuke Nakayasu
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Shin-Ichi Tsunoda
- Laboratory of Biopharmaceutical Research, National Institutes of Biomedical Innovation, Health and Nutrition, Saitoasagi, Ibaraki, Osaka, Japan; and
| | - Masanori Obana
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Makiko Maeda
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Hiroyuki Nakayama
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Yasuo Yoshioka
- Department of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Yasuo Tsutsumi
- Department of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan
| | - Yasushi Fujio
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka, Suita, Osaka, Japan;
| |
Collapse
|
4
|
Suda J, Rockey DC, Karvar S. Phosphorylation dynamics of radixin in hypoxia-induced hepatocyte injury. Am J Physiol Gastrointest Liver Physiol 2015; 308:G313-24. [PMID: 25501552 DOI: 10.1152/ajpgi.00369.2014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The most prominent ezrin-radixin-moesin protein in hepatocytes is radixin, which is localized primarily at the canalicular microvilli and appears to be important in regulation of cell polarity and in localizing the multidrug resistance-associated protein 2 (Mrp-2) function. Our aim was to investigate how hypoxia affects radixin distribution and Mrp-2 function. We created wild-type and mutant constructs (in adenoviral vectors), which were expressed in WIF-B cells. The cellular distribution of Mrp-2 and radixin was visualized by fluorescence microscopy, and a 5-chloromethylfluorescein diacetate (CMFDA) assay was used to measure Mrp-2 function. Under usual conditions, cells infected with wild-type radixin, nonphosphorylatable radixin-T564A, and radixin-T564D (active phospho-mimicking mutant) were found to be heavily expressed in canalicular membrane compartment vacuoles, typically colocalizing with Mrp-2. In contrast, after hypoxia for 24 h, both endogenous and overexpressed wild-type radixin and the radixin-T564A mutant were found to be translocated to the cytoplasmic space. However, distribution of the radixin-T564D mutant, which mimics constant phosphorylation, was remarkably different, being associated with canalicular membranes even in hypoxic conditions. This dominant-active construct also prevented dissociation of radixin from the plasma membrane. Hypoxia also led to Mrp-2 mislocalization and caused Mrp-2 to be dissociated from radixin; the radixin phospho-mimicking mutant (T564D) abrogated this effect of hypoxia. Finally, hypoxia diminished the secretory response (measured using the CMFDA assay) in WIF-B cells, and the dominant-active construct (radixin-T567D) rescued this phenotype. Taken collectively, these findings suggest that radixin regulates Mrp-2 localization and function in hepatocytes and is important in hypoxic liver injury.
Collapse
Affiliation(s)
- Jo Suda
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Don C Rockey
- Division of Gastroenterology and Hepatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Serhan Karvar
- Division of Gastroenterology and Hepatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| |
Collapse
|