1
|
Downregulated Recycling Process but Not De Novo Synthesis of Glutathione Limits Antioxidant Capacity of Erythrocytes in Hypoxia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7834252. [PMID: 32963701 PMCID: PMC7492869 DOI: 10.1155/2020/7834252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 12/26/2022]
Abstract
Red blood cells (RBCs) are susceptible to sustained free radical damage during circulation, while the changes of antioxidant capacity and regulatory mechanism of RBCs under different oxygen gradients remain unclear. Here, we investigated the changes of oxidative damage and antioxidant capacity of RBCs in different oxygen gradients and identified the underlying mechanisms using an in vitro model of the hypoxanthine/xanthine oxidase (HX/XO) system. In the present study, we reported that the hypoxic RBCs showed much higher oxidative stress injury and lower antioxidant capacity compared with normoxic RBCs. In addition, we found that the disturbance of the recycling process, but not de novo synthesis of glutathione (GSH), accounted for the significantly decreased antioxidant capacity of hypoxic RBCs compared to normoxic RBCs. We further elucidated the underlying molecular mechanism by which oxidative phosphorylation of Band 3 blocked the hexose monophosphate pathway (HMP) and decreased NADPH production aggravating the dysfunction of GSH synthesis in hypoxic RBCs under oxidative conditions.
Collapse
|
2
|
Zhao Y, Wang X, Wang R, Chen D, Noviana M, Zhu H. Nitric oxide inhibits hypoxia-induced impairment of human RBC deformability through reducing the cross-linking of membrane protein band 3. J Cell Biochem 2018; 120:305-320. [PMID: 30218451 DOI: 10.1002/jcb.27359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 06/26/2018] [Indexed: 12/26/2022]
Abstract
AIM Nitric oxide (NO) prevents the decline of RBC deformability under high altitude and other ischemic and hypoxic conditions, but the clear mechanisms remain unknown. Here, we have carried out a systematic study to find the mechanisms of NO-induced regulation of RBC deformability under hypoxia. METHODS NO levels, RBCs membrane elongation index (EI), membrane protein band 3 methemoglobin (MetHb) were determined during hypoxia (0 to 120 minutes). To validate the role of NO in regulating RBC deformability, tests were also performed with a NO donor (sodium nitroprusside) or a NO synthase inhibitor (l-nitro-arginine methylester) under 60 minutes hypoxia. RESULTS Hypoxia for 45 minutes increased NO levels from 25.65 ± 1.95 to 35.26 ± 2.01 μmol/L, and there was a plateau after 60 minutes hypoxia. The EI did not change before 45 minutes hypoxia, but decreased from 0.567 ± 0.019 to 0.409 ± 0.042 (30 Pa) after 60 minutes hypoxia. The cross-linking of band 3 and phosphotyrosine increased after 45 minutes hypoxia. All can be alleviated by supplement NO and aggregated by inhibiting NOS. However, the MetHb was not present this trend. CONCLUSION NO may prevent decreased of RBCs deformability through reducing the cross-linking of membrane band 3 under hypoxia; this helps microvascular perfusion of RBCs during ischemic and hypoxic disease states.
Collapse
Affiliation(s)
- Yajin Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Xiang Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Ruofeng Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Dong Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Milody Noviana
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Hongliang Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| |
Collapse
|
3
|
Xiong Y, Xiong Y, Zhou S, Sun Y, Zhao Y, Ren X, Zhang Y, Zhang N. Vitamin C and E Supplements Enhance the Antioxidant Capacity of Erythrocytes Obtained from Aged Rats. Rejuvenation Res 2016; 20:85-92. [PMID: 27346440 DOI: 10.1089/rej.2016.1835] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND/AIMS The main purpose of the present study was to investigate the effects of vitamin C and E supplements on the antioxidant capacity of erythrocytes obtained from young and aged rats. METHODS Male Wistar rats aged 3 and 24 months were used. Vitamins C and E were injected at doses of 200 mg/kg (day) intraperitoneally in young and aged groups. The antioxidant capacity, oxidant stress parameters, and deformability of red blood cells collected from different age stages were evaluated. An in vitro oxidation system was constructed to explore the mechanisms of antioxidant capacity change in the vitamin treatment groups. RESULTS Treatment with vitamins C and E can effectively restore the antioxidant capacity and deformability of red blood cells (RBCs) in aged rats. Under in vitro oxidative conditions, an age-dependent decline in the influx rate of L-cysteine was observed. This was significantly improved following treatment with vitamins C and E. CONCLUSION We present evidence of an improvement in the antioxidant capacity of RBCs by treatment with vitamins C and E in aged rats. These observations also suggest that treatment with vitamins C and E improves glutathione synthesis by enhancing the influx rate of L-cysteine through the modification of membrane proteins and lipids.
Collapse
Affiliation(s)
- Yanlian Xiong
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Yanlei Xiong
- 2 Department of Pathophysiology, Institute of Basic Medical Sciences , Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College, Beijing, P.R. China
| | - Shuai Zhou
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Yanan Sun
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Yuqi Zhao
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Xiaotong Ren
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Yingfang Zhang
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| | - Naili Zhang
- 1 School of Basic Medicine, Binzhou Medical University , Yantai, P.R. China
| |
Collapse
|
4
|
Lee YA, Saito-Nakano Y, Kim KA, Min A, Nozaki T, Shin MH. Modulation of endogenous Cysteine Protease Inhibitor (ICP) 1 expression in Entamoeba histolytica affects amoebic adhesion to Extracellular Matrix proteins. Exp Parasitol 2014; 149:7-15. [PMID: 25500214 DOI: 10.1016/j.exppara.2014.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 11/07/2014] [Accepted: 12/02/2014] [Indexed: 12/31/2022]
Abstract
Entamoeba histolytica is an enteric tissue-invading protozoan parasite that causes amoebic colitis and occasionally liver abscess in humans. During tissue invasion, amoebic adhesion to host components is an important event for host cell death leading to successful invasion and infection. Among amoebic virulence factors, Gal/GalNAc lectin is known to be major adhesion factor to host cells. In this study, we investigated the role of amoebic secreted CP (Cysteine Proteases) in amoebic adhesion to extracellular matrix (ECM) protein using CP inhibitor and E. histolytica strains in which the endogenous inhibitor of cysteine protease (ICP) 1 gene was overexpressed (ICP1(+)) or repressed by antisense small RNA-mediated gene silencing (ICP1(-)). We found that pretreatment of wild-type amoebae with CP inhibitor E64, or thiol-group modifiers such as diamide and N-Ethylmaleimide resulted in a significant decrease in adhesion to laminin and collagen ECM proteins. Furthermore, ICP1(+) strain, with a reduction of secreted CP activity, exhibited reduced ability by 40% to adhere to laminin. In contrast, ICP1(-) strain, with a 1.9-fold increase of secreted CP activity, showed a two-fold increase in amoebic adherence to laminin compared to the control strain. In addition, total amount of secreted CP5 was decreased in ICP1(+) amoeba. Conversely, total amount of secreted CP1 and mature-form CP5 were increased in ICP1(-) amoeba. We also found that ICP1 was secreted into extracellular milieu. These results suggest that secreted CP activity by E. histolytica may be an important factor affecting adhesion to host proteins, and regulation of CP secretion by ICP plays a major role in pathogenesis. This study provides insight into the CP-mediated tissue pathogenesis in amoeba-invaded lesions during human amoebiasis.
Collapse
Affiliation(s)
- Young Ah Lee
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Yumiko Saito-Nakano
- Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Kyeong Ah Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Arim Min
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Tomoyoshi Nozaki
- Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Myeong Heon Shin
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.
| |
Collapse
|
5
|
Xiong Y, Li Y, Xiong Y, Zhao Y, Tang F, Wang X. Cluster of erythrocyte band 3: a potential molecular target of exhaustive exercise-induced dysfunction of erythrocyte deformability. Can J Physiol Pharmacol 2013; 91:1127-34. [PMID: 24289085 DOI: 10.1139/cjpp-2013-0145] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The aim of this study is to explore the effect of exhaustive exercise on erythrocyte band 3 (SLC4A1; EB3). The association between the alterations of EB3 and red blood cell (RBC) deformability induced by exercise-induced dysfunction has been investigated. Rats were divided among 2 groups: (i) control (C), and (ii) exercise exhausted (E). RBC deformability was investigated in the rats in the exhaustive exercise and control groups. Erythrocytes from the control and exercise-exhausted groups were evaluated for the expression of erythrocyte band 3 through immunoblotting and immunofluorescence studies. Exhaustive exercise led to significant increments in the levels of clustering of erythrocyte band 3 along with the conjugation of membrane proteins to form high-molecular-weight complexes (P < 0.05). Under shear stresses, RBC deformability was found to decline significantly in the exhaustive exercise groups compared with the control group. These data suggest that the RBC dysfunction observed during exercise-induced oxidative stress could be associated with alterations in the structure and function of erythrocyte band 3, which in turn leads to dysfunction in the rheological properties of RBCs. These results provide further insight into erythrocyte damage induced by exhaustive exercise.
Collapse
Affiliation(s)
- Yanlian Xiong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, P.R. China
| | | | | | | | | | | |
Collapse
|
6
|
Yamaguchi T, Iwata Y, Miura S, Maehara Y, Nozawa K. Enhancement of Pressure-Induced Hemolysis by Aquaporin-1 Inhibitors in Human Erythrocytes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2012. [DOI: 10.1246/bcsj.20110285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takeo Yamaguchi
- Department of Chemistry, Faculty of Science, Fukuoka University
| | - Yohei Iwata
- Department of Chemistry, Faculty of Science, Fukuoka University
| | - Shingo Miura
- Department of Chemistry, Faculty of Science, Fukuoka University
| | - Yukari Maehara
- Department of Chemistry, Faculty of Science, Fukuoka University
| | - Kazuyuki Nozawa
- Department of Chemistry, Faculty of Science, Fukuoka University
| |
Collapse
|
7
|
Wang X, Yang L, Liu Y, Gao W, Peng W, Paul Sung KL, Amy Sung L. Oxidized low-density lipoprotein (Ox-LDL) impacts on erythrocyte viscoelasticity and its molecular mechanism. J Biomech 2009; 42:2394-9. [DOI: 10.1016/j.jbiomech.2009.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Revised: 05/20/2009] [Accepted: 05/23/2009] [Indexed: 11/15/2022]
|
8
|
Mentré P, Hui Bon Hoa G. Effects of high hydrostatic pressures on living cells: a consequence of the properties of macromolecules and macromolecule-associated water. INTERNATIONAL REVIEW OF CYTOLOGY 2001; 201:1-84. [PMID: 11057830 DOI: 10.1016/s0074-7696(01)01001-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sixty percent of the Earth's biomass is found in the sea, at depths greater than 1000 m, i.e., at hydrostatic pressures higher than 100 atm. Still more surprising is the fact that living cells can reversibly withstand pressure shifts of 1000 atm. One explanation lies in the properties of cellular water. Water forms a very thin film around macromolecules, with a heterogeneous structure that is an image of the heterogeneity of the macromolecular surface. The density of water in contact with macromolecules reflects the physical properties of their different domains. Therefore, any macromolecular shape variations involving the reorganization of water and concomitant density changes are sensitive to pressure (Le Chatelier's principle). Most of the pressure-induced changes to macromolecules are reversible up to 2000 atm. Both the effects of pressure shifts on living cells and the characteristics of pressure-adapted species are opening new perspectives on fundamental problems such as regulation and adaptation.
Collapse
Affiliation(s)
- P Mentré
- Station INRA 806, Institut de Biologie Physico-Chimique, Paris, France
| | | |
Collapse
|
9
|
Yamaguchi T, Furukawa Y, Terada S. Excimer Fluorescence ofN-(1-Pyrenyl)iodoacetamide-Labeled Spectrin. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1999. [DOI: 10.1246/bcsj.72.2509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
10
|
Yamaguchi T, Nakano T, Matsumoto M, Terada S. Effects of chemical modification of cysteines 201 and 317 of band 3 on hemolytic properties of human erythrocytes under hydrostatic pressure. THE JAPANESE JOURNAL OF PHYSIOLOGY 1998; 48:205-10. [PMID: 9689150 DOI: 10.2170/jjphysiol.48.205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In the membrane stability of human erythrocytes, the role of two cysteine residues (Cys-201 and Cys-317) in the cytoplasmic domain of band 3 is not clear. So we tried to resolve this problem by examining hemolytic properties under high pressure. From SH contents and spin labeling, it was found that Cys-201 and Cys-317 of band 3 were modified with N-ethylmaleimide (NEM). The hemolysis of intact erythrocytes at 200 MPa was suppressed by the binding of 4, 4'-diisothiocyanostilbene-2,2'-disulfonate (DIDS), anion transport inhibitor, to band 3. Similarly, the suppressive effect of DIDS was observed in the erythrocyte that Cys-201 and Cys-317 were modified with NEM. These results suggest that the cysteine residues in the cytoplasmic domain of band 3 are not essential for the DIDS-induced membrane stabilization.
Collapse
Affiliation(s)
- T Yamaguchi
- Department of Chemistry, Faculty of Science, Fukuoka University, Jonan-ku, Fukuoka, 814-0180, Japan.
| | | | | | | |
Collapse
|