1
|
Lu B, Zhao Q, Cai Z, Qian S, Mao J, Zhang L, Mao X, Sun X, Cui W, Zhang Y. Regulation of Glucose Metabolism for Cell Energy Supply In Situ via High-Energy Intermediate Fructose Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309060. [PMID: 38063818 DOI: 10.1002/smll.202309060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/24/2023] [Indexed: 05/12/2024]
Abstract
The cellular functions, such as tissue-rebuilding ability, can be directly affected by the metabolism of cells. Moreover, the glucose metabolism is one of the most important processes of the metabolism. However, glucose cannot be efficiently converted into energy in cells under ischemia hypoxia conditions. In this study, a high-energy intermediate fructose hydrogel (HIFH) is developed by the dynamic coordination between sulfhydryl-functionalized bovine serum albumin (BSA-SH), the high-energy intermediate in glucose metabolism (fructose-1,6-bisphosphate, FBP), and copper ion (Cu2+). This hydrogel system is injectable, self-healing, and biocompatible, which can intracellularly convert energy with high efficacy by regulating the glucose metabolism in situ. Additionally, the HIFH can greatly boost cell antioxidant capacity and increase adenosine triphosphate (ATP) in the ischemia anoxic milieu by roughly 1.3 times, improving cell survival, proliferation and physiological functions in vitro. Furthermore, the ischemic skin tissue model is established in rats. The HIFH can speed up the healing of damaged tissue by promoting angiogenesis, lowering reactive oxygen species (ROS), and eventually expanding the healing area of the damaged tissue by roughly 1.4 times in vivo. Therefore, the HIFH can provide an impressive perspective on efficient in situ cell energy supply of damaged tissue.
Collapse
Affiliation(s)
- Bolun Lu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Qiuyu Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Shutong Qian
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Jiayi Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Liucheng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Xiyuan Mao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai, 200011, P. R. China
| |
Collapse
|
2
|
Ojo OA, Agboola AO, Ogunro OB, Iyobhebhe M, Elebiyo TC, Rotimi DE, Ayeni JF, Ojo AB, Odugbemi AI, Egieyeh SA, Oluba OM. Beet leaf (beta vulgaris L.) extract attenuates iron-induced testicular toxicity: Experimental and computational approach. Heliyon 2023; 9:e17700. [PMID: 37483802 PMCID: PMC10359825 DOI: 10.1016/j.heliyon.2023.e17700] [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] [Received: 09/21/2022] [Revised: 06/07/2023] [Accepted: 06/26/2023] [Indexed: 07/25/2023] Open
Abstract
The purpose of this study was to investigate the protective effect of Beta vulgaris leaf extract (BVLE) on Fe2+-induced oxidative testicular damage via experimental and computational models. Oxidative testicular damage was induced via incubation of testicular tissue supernatant with 0.1 mM FeSO4 for 30 min at 37 °C. Treatment was achieved by incubating the testicular tissues with BVLE under the same conditions. The catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), malondialdehyde (MDA), and nitric oxide (NO) levels, acetylcholinesterase (AChE), sodium-potassium adenosine triphosphatase (Na+/K + ATPase), ecto-nucleoside triphosphate diphosphohydrolase (ENTPDase), glucose-6-phosphatase (G6Pase), and fructose-1,6-bisphosphatase (F-1,6-BPase) were all measured in the tissues. We identified the bioactive compounds present using high-performance liquid chromatography (HPLC). Molecular docking and dynamic simulations were done on all identified compounds using a computational approach. The induction of testicular damage (p < 0.05) decreased the activities of GSH, SOD, CAT, and ENTPDase. In contrast, induction of testicular damage also resulted in a significant increase in MDA and NO levels and an increase in ATPase, G6Pase, and F-1,6-BPase activities. BVLE treatment (p < 0.05) reduced these levels and activities compared to control levels. An HPLC investigation revealed fifteen compounds in BVLE, with quercetin being the most abundant. The molecular docking and MDS analysis of the present study suggest that schaftoside may be an effective allosteric inhibitor of fructose 1,6-bisphosphatase based on the interacting residues and the subsequent effect on the dynamic loop conformation. These findings indicate that B. vulgaris can protect against Fe2+-induced testicular injury by suppressing oxidative stress, acetylcholinesterase, and purinergic activities while regulating carbohydrate dysmetabolism.
Collapse
Affiliation(s)
- Oluwafemi Adeleke Ojo
- Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo, 232101, Nigeria
| | | | | | | | | | | | | | | | - Adeshina Isaiah Odugbemi
- Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo, 232101, Nigeria
- South African National Bioinformatics Institute, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
- National Institute for Theoretical and Computational Sciences (NITheCS), Cape Town, South Africa
| | - Samuel Ayodele Egieyeh
- National Institute for Theoretical and Computational Sciences (NITheCS), Cape Town, South Africa
- School of Pharmacy, University of Western Cape, Cape Town, South Africa
| | | |
Collapse
|
3
|
Jahoor Alam M. Insights from the p53 induced TIGAR protein 2 in the glycolytic pathway model. Bioinformation 2022; 18:310-317. [PMID: 36518138 PMCID: PMC9722439 DOI: 10.6026/97320630018310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 09/19/2023] Open
Abstract
TIGAR is a p53 inducible gene that triggers changes in glycolytic metabolic pathway states. It is known that TIGAR expression lowers the fructose - 2, 6-bisphosphate levels resulting in an inhibition of glycolysis and decrease in intracellular ROS levels. Therefore, it is interesting to document data on p53 induced TIGAR protein 2 in the glycolytic pathway. We describe a two-oscillator model consisting of the p53-Mdm2 network and glycolytic pathway with the TIGAR protein. The numerical simulation of the model shows the suppression of glycolytic oscillation as the level of TIGAR protein increases in agreement with the experimental results reported. Thus, stochastic simulation data helps to understand the realistic behaviour in the pathway.
Collapse
Affiliation(s)
- Mohammad Jahoor Alam
- Department of Biology, College of Science, University of Hail, Kingdom of Saudi Arabia
| |
Collapse
|
4
|
Tsili AC, Sofikitis N, Astrakas L, Goussia A, Kaltsas A, Argyropoulou MI. A magnetic resonance imaging study in etiology of nonobstructive azoospermia. Andrology 2021; 10:241-253. [PMID: 34423558 DOI: 10.1111/andr.13101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/23/2021] [Accepted: 08/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Testicular magnetic resonance imaging parameters, including apparent diffusion coefficient, fractional anisotropy, magnetization transfer ratio, and normalized metabolite concentrations represent useful noninvasive fingerprints of nonobstructive azoospermia. Nonobstructive azoospermia etiology might correlate with the spermatogenesis status. OBJECTIVES To assess the possible association between apparent diffusion coefficient, fractional anisotropy, magnetization transfer ratio, and normalised metabolite concentrations with nonobstructive azoospermia etiology. MATERIALS AND METHODS This retrospective study included 48 consecutive men with nonobstructive azoospermia and 18 age-matched controls. All participants underwent scrotal magnetic resonance imaging. The testicular apparent diffusion coefficient, fractional anisotropy, magnetization transfer ratio, and normalized metabolite concentrations were calculated. nonobstructive azoospermia men were classified into three groups, based on etiology: group 1, idiopathic; group 2, genetic causes; and group 3, non-genetic causes. Parametric and nonparametric statistical tests were used to evaluate differences in magnetic resonance imaging parameters between nonobstructive azoospermia groups and normal testes (group 4). Regression analysis was performed to assess the most predictive magnetic resonance imaging factor of nonobstructive azoospermia etiology. RESULTS Differences in mean apparent diffusion coefficient (p < .001), fractional anisotropy (p < .001), magnetization transfer ratio (p < .001), and normalized concentrations of total choline (p = .005), glucose (p = .012), myo-inositol (p = .024), and lipids (p = .010) were observed among groups. Regression analysis failed to identify the most discriminating magnetic resonance imaging feature for nonobstructive azoospermia etiology. DISCUSSION AND CONCLUSION Apparent diffusion coefficient, fractional anisotropy, magnetization transfer ratio, and normalized concentrations of total choline, glucose, myo-inositol, and lipids are helpful in discriminating nonobstructive azoospermia etiology. Magnetic resonance imaging may provide useful, noninvasive information on the microstructural and biochemical milieu of nonobstructive azoospermia testes.
Collapse
Affiliation(s)
- Athina C Tsili
- Department of Clinical Radiology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Nikolaos Sofikitis
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Loukas Astrakas
- Department of Medical Physics, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Anna Goussia
- Department of Pathology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Aris Kaltsas
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Maria I Argyropoulou
- Department of Clinical Radiology, School of Medicine, University of Ioannina, Ioannina, Greece
| |
Collapse
|
5
|
Shih HJ, Chang CY, Huang IT, Tsai PS, Han CL, Huang CJ. Testicular torsion-detorsion causes dysfunction of mitochondrial oxidative phosphorylation. Andrology 2021; 9:1902-1910. [PMID: 34115449 DOI: 10.1111/andr.13068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 06/05/2021] [Accepted: 06/05/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Semen quality impairment is a serious consequence of testicular torsion-detorsion. Adequate germ-cell mitochondrial oxidative phosphorylation plays a crucial role in male fertility. Changes in cellular oxidative phosphorylation in testicular tissues after testicular torsion-detorsion remain unclear. OBJECTIVES This study investigated whether testicular torsion-detorsion induces alternations of mitochondrial oxidative phosphorylation in testicular tissues. MATERIALS AND METHODS BALB/c male mice were divided into a Sham group and a testicular torsion-detorsion group. At the end of the procedure, the mice were euthanized, and their bilateral testicles were removed. Mitochondria morphology was evaluated through transmission electron microscopy. The cellular respiratory functions of germ cells were evaluated using a Seahorse analyzer assay. The proteome profiles in testicular tissues were analyzed using liquid chromatography-tandem mass spectrometry. The differences in the expression levels of each component in the oxidative phosphorylation were revealed using Ingenuity Pathways Analysis. RESULTS Inner mitochondrial membrane disruption was found in ipsilateral twisted testicular mitochondria in the torsion-detorsion group but not in contralateral untwisted testes. The cellular respiratory function in germ cells was significantly decreased after testicular torsion-detorsion in ipsilateral twisted testes but not in contralateral untwisted testes. Liquid chromatography-tandem mass spectrometry analysis of ipsilateral twisted testicular tissue revealed that mitochondrial proteins were differentially expressed after testicular torsion-detorsion. Testicular torsion-detorsion induced downregulation of oxidative phosphorylation and revealed alternations of specific proteins in the oxidative phosphorylation complexes. DISCUSSION AND CONCLUSION Testicular torsion-detorsion produced mitochondria injury and dysregulation of mitochondrial oxidative phosphorylation in ipsilateral twisted testes. Different protein expressions were identified in the mitochondrial oxidative phosphorylation complexes with testicular torsion-detorsion; new therapeutic targets may be identified to restore the oxidative phosphorylation function of germ cells.
Collapse
Affiliation(s)
- Hung-Jen Shih
- Department of Urology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Urology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chao-Yuan Chang
- Integrative Research Centre for Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Anesthesiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - I-Tao Huang
- Department of Emergency Medicine, Redcliffe Hospital, Metro North Hospital and Health Service, Queensland Government, Redcliffe, Queensland, Australia.,School of Public Health, Faculty of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Pei-Shan Tsai
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan.,Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chia-Li Han
- Master Program in Clinical Pharmacogenomics and Pharmacoproteomics, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chun-Jen Huang
- Integrative Research Centre for Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Anesthesiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
6
|
Soudmand P, Tofighi A, Tolouei Azar J, Razi M, Ghaderi Pakdel F. Different continuous exercise training intensities induced effect on sertoli-germ cells metabolic interaction; implication on GLUT-1, GLUT-3 and MCT-4 transporting proteins expression level. Gene 2021; 783:145553. [PMID: 33711407 DOI: 10.1016/j.gene.2021.145553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/12/2021] [Accepted: 02/23/2021] [Indexed: 12/31/2022]
Abstract
Despite other tissues, the effect of different exercise training protocols (ETPs) on the expression levels of metabolic substrates transmembrane transporters in the testicular tissue, remains completely unexplored. Thus, the effects of low, moderate and high-intensity ETPs on the SCs and germ cells potentials in GLUT-1, GLUT-3 and MCT-4 expression levels was investigated in this study. The animals were assigned into 4 groups, including sedentary control, low-intensity continuous (LICT), moderate-intensity (MICT) and high-intensity (HICT) ETPs-induced groups (n = 6/group). The GLUT-1, GLUT-3 and MCT-4 expressions, cytoplasmic carbohydrate storages of SCs and germ cells, the SCs survival and the spermatogenesis and spermiogenesis rates were assessed. The LICT and MICT did not significantly alter the protein expression levels of GLUT-3 and MCT-4 in the SCs and germ cells, while decreased the GLUT-1 protein content versus the sedentary control animals. In contrast, the HICT remarkably suppressed the GLUT-1 and MCT-4 in both SCs, and germ cells and diminished GLUT-3 in SCs and increased in the germ cells. No significant changes were revealed in the cytoplasmic carbohydrate storage in the LICT and MICT groups, while significantly diminished in the HICT group. The HICT group showed a failed spermatogenesis and spermiogenesis, which were not demonstrated in the sedentary control, LICT and MICT groups. In conclusion, the HICT, by reducing the GLUT-1, GLUT-3 and MCT-4 protein contents in the SCs and reducing the SCs survival, can suppress the glucose transmembrane transport and inhibit the lactate export from SCs, which in turn, ends with failed spermatogenesis and spermiogenesis.
Collapse
Affiliation(s)
- Poupak Soudmand
- Department of Exercise Physiology and Corrective Exercises, Faculty of Sport Sciences, Urmia University, Urmia, Iran
| | - Asghar Tofighi
- Department of Exercise Physiology and Corrective Exercises, Faculty of Sport Sciences, Urmia University, Urmia, Iran.
| | - Javad Tolouei Azar
- Department of Exercise Physiology and Corrective Exercises, Faculty of Sport Sciences, Urmia University, Urmia, Iran
| | - Mazdak Razi
- Department of Basic Sciences, Faculty of Veterinary Medicine, P.O.BOX: 1177, Urmia University, Urmia, Iran
| | - Firouz Ghaderi Pakdel
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| |
Collapse
|
7
|
ROS and metabolomics-mediated autophagy in rat's testicular tissue alter after exercise training; Evidence for exercise intensity and outcomes. Life Sci 2021; 277:119585. [PMID: 33957169 DOI: 10.1016/j.lfs.2021.119585] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/24/2021] [Indexed: 11/21/2022]
Abstract
AIMS Oxidative damage and altered metabolic reactions are suspected to initiate the autophagy. The exercise training significantly impacts testicular antioxidant and metabolic potentials. However, the underlying mechanism(s) that the exercise-induced alterations can affect the autophagy markers remained unknown. This study explored the effect of exercise training on antioxidant and metabolic statuses of testicular tissue and uncovered the possible cross-link between these statuses and autophagy-inducers expression. MAIN METHODS Wistar rats were divided into sedentary control, low (LICT), moderate (MICT), and high (HICT) intensity continuous training groups. Following 8 weeks of training, the testicular total antioxidant capacity (TAC), total oxidant status (TOS), glutathione (GSH), and NADP+/NADPH as oxidative biomarkers along with intracytoplasmic carbohydrate and lipid droplet patterns, lactate dehydrogenase (LDH) activity, and lactate as metabolic elements were assessed. Finally, the autophagy-inducers expression and sperm count were examined. KEY FINDINGS With no significant impact on the oxidative biomarkers and metabolic elements, the LICT and MICT groups exhibited statistically unremarkable (p < 0.05) impacts on spermatogenesis differentiation, spermiogenesis ratio, and sperm count while increased the autophagy-inducers expression. Reversely, the HICT group, simultaneous with suppressing the antioxidant biomarkers (TAC↓, GSH↓, TOS↑, NADP+/NADPH↑), significantly (p < 0.05) reduced the testicular LDH activity and lactate level, changed the intracytoplasmic carbohydrate and lipid droplet's pattern, and amplified the classical autophagy-inducers p62, Beclin-1, autophagy-related gene (ATG)-7, and light chain 3 (LC3)-II/I expression. SIGNIFICANCE The autophagy-inducers overexpression has occurred after HICT induction, most probably to eliminate the oxidative damage cargoes, while increased to maintain the metabolic homeostasis in the LICT and MICT groups.
Collapse
|
8
|
Fadel F, Al-Kandari N, Khashab F, Al-Saleh F, Al-Maghrebi M. JNK inhibition alleviates oxidative DNA damage, germ cell apoptosis, and mitochondrial dysfunction in testicular ischemia reperfusion injury. Acta Biochim Biophys Sin (Shanghai) 2020; 52:891-900. [PMID: 32662511 DOI: 10.1093/abbs/gmaa074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 01/05/2023] Open
Abstract
The aim of this study is to determine whether the c-Jun N-terminal kinase (JNK) signaling is a regulator of oxidative DNA damage, germ cell apoptosis (GCA), and mitochondrial dysfunction during testicular ischemia reperfusion injury (tIRI) using the JNK inhibitor SP600125. Male Sprague Dawley rats (n = 36) were equally divided into three groups: sham, tIRI only, and tIRI + SP600125 (15 mg/kg). Testicular ischemia was induced for 1 h followed by 4 h of reperfusion prior to animal sacrifice. Spermatogenesis was evaluated by light microscopy, while expression of oxidative stress and GCA-related mRNAs and proteins were evaluated by real-time polymerase chain reaction and colorimetric assays, respectively. Expressions of JNK, p53, and survivin were detected by immunofluorescence (IF) staining. Indicators of mitochondrial dysfunction were examined by western blot analysis and colorimetric assay. In comparison to sham, the tIRI testes showed a significant increase in lipid and protein oxidation products. Oxidative DNA damage was reflected by a significant increase in the number of DNA strand breaks, increased concentration of 8-OHdG, and elevated poly (ADP-ribose) polymerase activity. Spermatogenic damage was associated with the activation of caspase 3 and elevated Bax to Bcl2 ratio. This was also accompanied by a significantly heightened IF expression of the phosphorylated forms of JNK and p53 paralled with the suppression of survivin. Mitochondrial dysfunction was reflected by NAD+ depletion, overexpression of uncoupling protein 2, and increased level of cytochrome c. Such tIRI-induced modulations were all attenuated by SP600125 treatment prior to reperfusion. In conclusion, JNK signaling regulates oxidative DNA damage, GCA, and mitochondrial dysfunction through activation of p53 and suppression of survivin during tIRI.
Collapse
Affiliation(s)
- Fatemah Fadel
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Nora Al-Kandari
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Farah Khashab
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - Farah Al-Saleh
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| | - May Al-Maghrebi
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah 13110, Kuwait
| |
Collapse
|
9
|
Al-Saleh F, Khashab F, Fadel F, Al-Kandari N, Al-Maghrebi M. Inhibition of NADPH oxidase alleviates germ cell apoptosis and ER stress during testicular ischemia reperfusion injury. Saudi J Biol Sci 2020; 27:2174-2184. [PMID: 32714044 PMCID: PMC7376125 DOI: 10.1016/j.sjbs.2020.04.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/26/2020] [Accepted: 04/13/2020] [Indexed: 12/18/2022] Open
Abstract
Testicular torsion and detorsion (TTD) is a serious urological condition affecting young males that is underlined by an ischemia reperfusion injury (tIRI) to the testis as the pathophysiological mechanism. During tIRI, uncontrolled production of oxygen reactive species (ROS) causes DNA damage leading to germ cell apoptosis (GCA). The aim of the study is to explore whether inhibition of NADPH oxidase (NOX), a major source of intracellular ROS, will prevent tIRI-induced GCA and its association with endoplasmic reticulum (ER) stress. Sprague-Dawley rats (n = 36) were divided into three groups: sham, tIRI only and tIRI treated with apocynin (a NOX inhibitor). Rats undergoing tIRI endured an ischemic injury for 1 h followed by 4 h of reperfusion. Spermatogenic damage was evaluated histologically, while cellular damages were assessed using real time PCR, immunofluorescence staining, Western blot and biochemical assays. Disrupted spermatogenesis was associated with increased lipid and protein peroxidation and decreased antioxidant activity of the enzyme superoxide dismutase (SOD) as a result of tIRI. In addition, increased DNA double strand breaks and formation of 8-OHdG adducts associated with increased phosphorylation of the DNA damage response (DDR) protein H2AX. The ASK1/JNK apoptosis signaling pathway was also activated in response to tIRI. Finally, increased immuno-expression of the unfolded protein response (UPR) downstream targets: GRP78, eIF2-α1, CHOP and caspase 12 supported the presence of ER stress. Inhibition of NOX by apocynin protected against tIRI-induced GCA and ER stress. In conclusion, NOX inhibition minimized tIRI-induced intracellular oxidative damages leading to GCA and ER stress.
Collapse
Key Words
- 8-OHdG, 8-hydroxy-2′-deoxyguanosine
- ANOVA, analysis of variance
- ASK1, apoptosis signaling kinase 1
- ATF, activating transcription factor
- ATM, ataxia telangiectasia mutated
- BSA, bovine serum albumin
- BTB, blood-testis barrier
- CHOP, CCAAT-enhancer-binding protein homologous protein
- Chk, checkpoint kinase
- DAPI, diamidino phenylindole
- DDR, DNA damage response
- DMSO, dimethyl sulfoxide
- DNA, deoxyribonucleic acid
- ECL, electrochemiluminescence
- ELISA, enzyme-linked immunosorbent assay
- ER stress
- ER, endoplasmic reticulum
- GCA, germ cell apoptosis
- GRP78, glucose-related protein 78
- Germ cell apoptosis
- H&E, hematoxylin and eosin
- H2AX, histone variant
- H2O2, hydrogen peroxide
- IAP, inhibitors of apoptosis
- IF, immunofluorescence
- IRE1, inositol requiring kinase 1
- JNK, c-Jun N-terminal Kinase
- MDA, malondialdehyde
- NADP, nicotinamide adenine dinucleotide phosphate
- NADPH oxidase
- NOX, NADPH oxidase
- O2, molecular oxygen
- O2−, superoxide anion
- OS, oxidative stress
- Oxidative stress
- PARP, poly ADP-ribose polymerase
- PCC, protein carbonyl content
- PCR, polymerase chain reaction
- PERK, pancreatic ER kinase
- PVDF, polyvinylidene difluoride
- RIPA, radioimmunoprecipitation assay
- RNA, ribonucleic acid
- ROS, reactive oxygen species
- RT, reverse transcription
- SD, standard deviation
- SDS-PAGE, sodium dodecyl sulfate polyacrylamide gel electrophoresis
- SOD, superoxide dismutase
- ST, seminiferous tubule
- TOS, testicular oxidative stress
- TRAF-2, tumor-necrosis-factor receptor-associated factor 2
- TUNEL, terminal deoxynucleotidyl transferase dUTP nick end labeling
- Testicular ischemia Reperfusion Injury
- UPR, unfolded protein response
- cDNA, complementary DNA
- eIF2α1, eukaryotic initiation factor 2α1
- gDNA, genomic DNA
- i.p., intraperitoneal
- kDa, kilodalton
- mRNA, messenger ribonucleic acid
- p-, phosphorylated
- phox, phagocyte oxidase
- γ-H2AX, 139 serine-phosphorylated histone variant
Collapse
Affiliation(s)
- Farah Al-Saleh
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
| | - Farah Khashab
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
| | - Fatemah Fadel
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
| | - Nora Al-Kandari
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
| | - May Al-Maghrebi
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Jabriyah, Kuwait
| |
Collapse
|
10
|
The Thioredoxin System is Regulated by the ASK-1/JNK/p38/Survivin Pathway During Germ Cell Apoptosis. Molecules 2019; 24:molecules24183333. [PMID: 31547465 PMCID: PMC6767173 DOI: 10.3390/molecules24183333] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 08/31/2019] [Accepted: 09/11/2019] [Indexed: 11/21/2022] Open
Abstract
The aim is to explore the mechanism of the apoptosis signal-regulating kinase-1 (ASK-1) signaling pathway and the involvement of the thioredoxin (Trx) system during testicular ischemia reperfusion injury (tIRI) by using ASK-1 specific inhibitor, NQDI-1. Male Sprague-Dawley rats (n = 36, 250–300 g) were equally divided into 3 groups: sham, tIRI, and tIRI + NQDI-1 (10 mg/kg, i.p, pre-reperfusion). For tIRI induction, the testicular cord and artery were occluded for 1 h followed by 4 h of reperfusion. Histological analyses, protein immunoexpression, biochemical assays, and real-time PCR were used to evaluate spermatogenesis, ASK-1/Trx axis expression, enzyme activities, and relative mRNA expression, respectively. During tIRI, ipsilateral testes underwent oxidative stress indicated by low levels of superoxide dismutase (SOD) and Glutathione (GSH), increased oxidative damage to lipids and DNA, and spermatogenic damage. This was associated with induced mRNA expression of pro-apoptosis genes, downregulation of antiapoptosis genes, increased caspase 3 activity and activation of the ASK-1/JNK/p38/survivin apoptosis pathway. In parallel, the expression of Trx, Trx reductase were significantly reduced, while the expression of Trx interacting protein (TXNIP) and the NADP+/ nicotinamide Adenine Dinucleotide phosphate (NADPH) ratio were increased. These modulations were attenuated by NQDI-1 treatment. In conclusion, the Trx system is regulated by the ASK-1/Trx/TXNIP axis to maintain cellular redox homeostasis and is linked to tIRI-induced germ cell apoptosis via the ASK-1/JNK/p38/survivin apoptosis pathway.
Collapse
|
11
|
Ebokaiwe AP, Ijomone OM, Osawe SO, Chukwu CJ, Ejike CECC, Zhang G, Wang F. Alteration in sperm characteristics, endocrine balance and redox status in rats rendered diabetic by streptozotocin treatment: attenuating role of Loranthus micranthus. Redox Rep 2018; 23:194-205. [PMID: 30376784 PMCID: PMC6748702 DOI: 10.1080/13510002.2018.1540675] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Objectives:Loranthus micranthus is widely used in
Nigerian folklore treatment of male infertility and diabetes complications. We
investigated this claim in rats rendered diabetic by streptozotocin (STZ). Methods: Induction of diabetes mellitus in adult male Wistar rats
was by intraperitoneal injection of STZ (60 mg/kg). The diabetic rats were
thereafter treated orally once/day with 5 mg/kg Gilbenclamide or L.
micranthus (100 mg/kg or 200 mg/kg) and monitored for 14 days.
Clinical observations, hormonal profile, oxidative stress parameters, glucose
metabolism enzymes, histopathological examination, apoptotic marker
immunoreactivity and western blotting in testes and sperm parameters were
evaluated to examine effects of L. micranthus on STZ-diabetic
rats. Results:L. micranthus treatment significantly
reduced the blood glucose level (45.9% and 84.7% on the 7th and 14th
post-treatment days, respectively); increased antioxidant status, improved
microarchitecture of testes, reduced lipid peroxidation and increased BCl-2
protein expression in diabetic rats relative to control. Furthermore, treatment
with L. micranthus increased steroidogenic enzymes activities,
levels of steroid hormones and improved sperm quality, relative to control. Conclusion: The anti-diabetic and aphrodisiac properties exhibited
by L. micranthus could be contingent on its ability to restore
a balance to the compromised redox status that characterizes male reproductive
dysfunction in diabetes.
Collapse
Affiliation(s)
- Azubuike P Ebokaiwe
- a Department of Chemistry/Biochemistry and Molecular Biology , Federal University Ndufu-Alike Ikwo , Ikwo , Nigeria.,e Key Laboratory of Natural Medicine and Clinical Translation , Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu , People's Republic of China
| | - Omamuyovwi M Ijomone
- b Department of Anatomy, School of Health and Health Technology , Federal University of Technology Akure , Akure , Nigeria
| | - Sharon O Osawe
- c Department of Biochemistry, Faculty of Applied Sciences , KolaDaisi University , Ibadan , Nigeria
| | - Chukwuma J Chukwu
- a Department of Chemistry/Biochemistry and Molecular Biology , Federal University Ndufu-Alike Ikwo , Ikwo , Nigeria
| | - Chukwunonso E C C Ejike
- d Department of Medical Biochemistry, College of Medicine , Federal University Ndufu-Alike Ikwo , Ikwo , Nigeria
| | - Guolin Zhang
- e Key Laboratory of Natural Medicine and Clinical Translation , Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu , People's Republic of China
| | - Fei Wang
- e Key Laboratory of Natural Medicine and Clinical Translation , Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu , People's Republic of China
| |
Collapse
|
12
|
Mateus I, Feijó M, Espínola LM, Vaz CV, Correia S, Socorro S. Glucose and glutamine handling in the Sertoli cells of transgenic rats overexpressing regucalcin: plasticity towards lactate production. Sci Rep 2018; 8:10321. [PMID: 29985416 PMCID: PMC6037673 DOI: 10.1038/s41598-018-28668-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 06/22/2018] [Indexed: 12/13/2022] Open
Abstract
Sertoli cells (SCs) possess the unparalleled ability to provide the germ line with growth factors and nutrients. Although SCs can oxidize amino acids, e.g., glutamine, they mostly metabolize glucose, producing high amounts of lactate, the germ cells preferential substrate. Regucalcin (RGN) is a calcium-binding protein that has been indicated as a regulator of cell metabolism. In this study, we investigated glucose and glutamine handling in the SCs of transgenic rats overexpressing RGN (Tg-RGN) comparatively with wild-type (Wt) littermates. Primary SCs isolated from adult Tg-RGN animals and maintained in culture for 24 hours, produced and exported more lactate, despite consuming less glucose. These observations were underpinned by increased expression of alanine transaminase, and augmented glutamine consumption, suggesting that alternative routes are contributing to the enhanced lactate production in the SCs of Tg-RGN rats. Moreover, lactate seems to be used by germ cells, with diminished apoptosis being detected in the seminiferous tubules of Tg-RGN animals cultured ex vivo. The obtained results showed a distinct metabolism in the SCs of Wt and Tg-RGN rats widening the roles assigned to RGN in spermatogenesis. These findings also highlighted the plasticity of SCs metabolism, a feature that would be exploited in the context of male infertility.
Collapse
Affiliation(s)
- Inês Mateus
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Mariana Feijó
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Luís M Espínola
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Cátia V Vaz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Sara Correia
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Sílvia Socorro
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.
| |
Collapse
|
13
|
Refaie MM. Upregulation of peroxisome proliferator activated receptor alpha by fenofibrate in induced testicular ischemia reperfusion. Biomed Pharmacother 2018; 98:507-515. [DOI: 10.1016/j.biopha.2017.12.093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 12/15/2017] [Accepted: 12/19/2017] [Indexed: 11/16/2022] Open
|
14
|
Probucol Reduces Testicular Torsion/Detorsion-Induced Ischemia/Reperfusion Injury in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:5424097. [PMID: 29081888 PMCID: PMC5610873 DOI: 10.1155/2017/5424097] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 08/04/2017] [Accepted: 08/10/2017] [Indexed: 12/25/2022]
Abstract
This study investigated the effect of probucol, a potent antioxidant, on testicular torsion/detorsion-induced ischemia/reperfusion injury attributable to excess reactive oxygen species released by neutrophils. Sixty male Sprague-Dawley rats were randomly divided into sham-operated control, ischemia-reperfusion, and probucol-treated groups. In the ischemia-reperfusion group, testicular detorsion was performed after 2 hours of left testicular torsion. In the probucol-treated group, after performing the same surgical procedures as in the ischemia-reperfusion group, probucol was given intraperitoneally at testicular detorsion. Orchiectomy was performed to evaluate protein expression of E-selectin which is an endothelial cell adhesion molecule and mediates neutrophil adhesion to vascular endothelium, myeloperoxidase activity (a mark of neutrophil accumulation in the testis), malondialdehyde level (an indicator of reactive oxygen species), and spermatogenesis. E-selectin protein expression, myeloperoxidase activity, and malondialdehyde level were significantly increased, and testicular spermatogenesis was significantly decreased in the ipsilateral testes in the ischemia-reperfusion group, compared with the control group. The probucol-treated group showed significant decreases in E-selectin protein expression, myeloperoxidase activity, and malondialdehyde level and significant increase in testicular spermatogenesis in the ipsilateral testes, compared with the ischemia-reperfusion group. These findings indicate that probucol can protect testicular spermatogenesis by reducing overgeneration of reactive oxygen species by inhibiting E-selectin protein expression and neutrophil accumulation in the testis.
Collapse
|