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Imik A, Eren M, Can MB, Ozkanlar S, Omur AD, Aydin MA, Sunar S, Akarsu SA. Dietary composition influences sperm quality and testis damage via endoplasmic reticulum stress in lambs. Vet Med Sci 2024; 10:e1504. [PMID: 38879885 PMCID: PMC11180475 DOI: 10.1002/vms3.1504] [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: 12/26/2023] [Revised: 05/13/2024] [Accepted: 05/24/2024] [Indexed: 06/18/2024] Open
Abstract
BACKGROUND The metabolic impacts of including soya meal, wheat gluten and corn gluten in the diet of male lambs could influence their reproductive performance. OBJECTIVES An experiment was carried out to assess the effects of corn gluten, wheat gluten and soya meal on the reproductive system of male lambs. METHODS Twenty-four male Morkaraman lambs, aged 9 months, were utilized in this study and were fed experimental diets for 56 days. The lambs were divided into a control group (soybean meal + safflower meal), a corn group (corn gluten) and a wheat group (wheat gluten). RESULTS The serum follicle-stimulating hormone level of the control group was significantly higher and tumour necrosis factor-alpha (TNF-α) level was lower than the wheat and corn gluten groups (p < 0.05). The lowest malondialdehyde level in testicular tissue was observed in the control group, whereas the highest was in the wheat gluten group (p < 0.05). The glutathione level in the control group was significantly higher than in the other groups (p < 0.05). The corn gluten group showed the highest CHOP and IRE1 levels; the lowest Bcl-2 levels and the highest IL-1B and P2 × 7R levels were found in the wheat group; and the lowest TNF-α levels were in the control group (p < 0.05). Additionally, the study revealed that diet had a significant impact on spermatological parameters of the testis such as diameter, volume and weight (p < 0.05). CONCLUSIONS These results concluded that the inclusion of different protein sources in the diet of reproductive male lambs affects the metabolism of testicular tissue.
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Affiliation(s)
- Aybuke Imik
- Department of Nutrition and Dietetics, Institute of Health Sciences, Selçuk University, Konya, Turkey
| | - Murat Eren
- Department of Animal Nutrition and Nutritional Diseases, Institute of Health Sciences, Erciyes University, Kayseri, Turkey
| | - Mazhar Burak Can
- Department of Animal Nutrition and Nutritional Diseases, Institute of Health Sciences, Atatürk University, Erzurum, Turkey
| | - Seckin Ozkanlar
- Department of Biochemistry, Institute of Health Sciences, Atatürk University, Erzurum, Turkey
| | - Ali Dogan Omur
- Department of Reproduction and Artificial Insemination, Institute of Health Sciences, Atatürk University, Erzurum, Turkey
| | - Mehmet Akif Aydin
- Department of Reproduction and Artificial Insemination, Institute of Health Sciences, Kafkas University, Kars, Turkey
| | - Serhat Sunar
- Department of Reproduction and Artificial Insemination, Institute of Health Sciences, Kafkas University, Kars, Turkey
| | - Serkan Ali Akarsu
- Department of Reproduction and Artificial Insemination, Institute of Health Sciences, Atatürk University, Erzurum, Turkey
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Srivasatav S, Mishra J, Keshari P, Verma S, Aditi R. Impact of Radiation on Male Fertility. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:71-82. [PMID: 36472817 DOI: 10.1007/978-3-031-12966-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In today's time, environmental aspects, lifestyle changes, and person's health coalesce to form stupendous impact on the fertility. All of us are knowingly or unknowingly exposed to several types of radiation. These can lead to collection of early and delayed adverse effects of which infertility is one. A spurt in the number of cases of male infertility may be attributed to intense exposure to heat, pesticides, radiations, radioactivity, and other hazardous substances. Radiation both ionizing and non-ionizing can lead to adverse effects on spermatogenesis. Though thermal and non-thermal interactions of radiation with biological tissue can't be ruled out, most studies emphasize on the generation of reactive oxygen species (ROS). In addition, radiation pathophysiology also involves the role of kinases in cellular metabolism, endocrine system, genotoxicity, and genomic instability. In this study, we intend to describe a detailed literature on the impact of ionizing and non-ionizing radiation on male reproductive system and understand its consequences leading to the phenomenon of male infertility.
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Affiliation(s)
- Srijan Srivasatav
- Department of Pathology, Veer Chandra Singh Garhwali Govt, Institute of Medical Sciences and Research, Srinagar, Uttarakhand, India
| | - Jyoti Mishra
- Department of Pathology, School of Medical Sciences and Research, Sharda Hospital, Greater Noida, Uttar Pradesh, India.
| | - Priyanka Keshari
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Shailza Verma
- Department of Pathology, School of Medical Sciences and Research, Sharda Hospital, Greater Noida, Uttar Pradesh, India
| | - Raina Aditi
- Department of Pathology, Saraswathi Institute of Medical Sciences, Anwarpur, Uttar Pradesh, India
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3
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Shin E, Lee S, Kang H, Kim J, Kim K, Youn H, Jin YW, Seo S, Youn B. Organ-Specific Effects of Low Dose Radiation Exposure: A Comprehensive Review. Front Genet 2020; 11:566244. [PMID: 33133150 PMCID: PMC7565684 DOI: 10.3389/fgene.2020.566244] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/07/2020] [Indexed: 12/16/2022] Open
Abstract
Ionizing radiation (IR) is a high-energy radiation whose biological effects depend on the irradiation doses. Low-dose radiation (LDR) is delivered during medical diagnoses or by an exposure to radioactive elements and has been linked to the occurrence of chronic diseases, such as leukemia and cardiovascular diseases. Though epidemiological research is indispensable for predicting and dealing with LDR-induced abnormalities in individuals exposed to LDR, little is known about epidemiological markers of LDR exposure. Moreover, difference in the LDR-induced molecular events in each organ has been an obstacle to a thorough investigation of the LDR effects and a validation of the experimental results in in vivo models. In this review, we summarized the recent reports on LDR-induced risk of organ-specifically arranged the alterations for a comprehensive understanding of the biological effects of LDR. We suggested that LDR basically caused the accumulation of DNA damages, controlled systemic immune systems, induced oxidative damages on peripheral organs, and even benefited the viability in some organs. Furthermore, we concluded that understanding of organ-specific responses and the biological markers involved in the responses is needed to investigate the precise biological effects of LDR.
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Affiliation(s)
- Eunguk Shin
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - Sungmin Lee
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - Hyunkoo Kang
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - Jeongha Kim
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - Kyeongmin Kim
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul, South Korea
| | - Young Woo Jin
- Laboratory of Low Dose Risk Assessment, National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, South Korea
| | - Songwon Seo
- Laboratory of Low Dose Risk Assessment, National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, South Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea.,Department of Biological Sciences, Pusan National University, Busan, South Korea
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4
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Endoplasmic Reticulum Stress (ER Stress) and Unfolded Protein Response (UPR) Occur in a Rat Varicocele Testis Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5909306. [PMID: 32802266 PMCID: PMC7411497 DOI: 10.1155/2020/5909306] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/14/2020] [Accepted: 05/29/2020] [Indexed: 12/12/2022]
Abstract
Using a surgically induced varicocele rat model, we show here strong evidence that the misfolded/unfolded protein response that is part of the stress response of the endoplasmic reticulum (ER) is activated in the varicocele testis (VCL), leading to the induction of apoptosis. To support this hypothesis, it is observed that the spliced variant of the X-box protein 1 (XBP1s), resulting from the activation of the inositol-requiring enzyme 1 (IRE1) membrane sensor, is significantly more represented in VCL testicular extracts. The activation of the IRE1/XBP1s pathway is also supported by the observation that the VCL testes show an increase phosphorylation of the c-Jun-kinase (JNK) known to be one intermediate of this pathway and an increased level of caspase-3, the terminal apoptotic effector, partly explaining the apoptotic status of the VCL testis.
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5
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Karna KK, Shin YS, Choi BR, Kim HK, Park JK. The Role of Endoplasmic Reticulum Stress Response in Male Reproductive Physiology and Pathology: A Review. World J Mens Health 2019; 38:484-494. [PMID: 31385474 PMCID: PMC7502313 DOI: 10.5534/wjmh.190038] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/23/2019] [Accepted: 05/22/2019] [Indexed: 12/26/2022] Open
Abstract
Endoplasmic reticulum (ER) stress, defined as prolonged disturbances in protein folding and accumulation of unfolded proteins in the ER. Perturbation of the ER, such as distribution of oxidative stress, iron imbalance, Ca2+ leakage, protein overload, and hypoxia, can cause ER stress. The cell reacts to ER stress by activating protective pathways, called the unfolded protein response (UPR), which is comprised of cellular mechanisms aimed for maintaining cellular homeostasis or, in case of excessively severe stress, at the initiation of cellular apoptosis. The three UPR signaling pathways from the ER stress sensors are initiated by activating transcription factor 6, inositol requiring enzyme 1, and protein kinase RNA-activated-like ER kinase. A number of physiological and pathological conditions, environmental toxicants and variety of pharmacological agents showed disruption of proper ER functions and thereby cause ER stress in male reproductive organ in rat model. The present review summarizes the existing data concerning the molecular and biological mechanism of ER stress in male reproduction and male infertility. ER stress initiated cell death pathway has been related to several diseases, including hypoxia, heath disease, diabetes, and Parkinson's disease. Although there is not enough evidence to prove the relationship between ER stress and male infertility in human, most studies in this review found that ER stress was correlated with male reproduction and infertility in animal models. The ER stress could be novel signaling pathway of regulating male reproductive cellular apoptosis. Infertility might be a result of disturbing the ER stress response during the process of male reproduction.
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Affiliation(s)
- Keshab Kumar Karna
- Department of Urology, Institute for Medical Sciences, Chonbuk National University Medical School - Biomedical Research and Institute and Clinical Trial Center for Medical Devices, Chonbuk National University Hospital, Jeonju, Korea
| | - Yu Seob Shin
- Department of Urology, Institute for Medical Sciences, Chonbuk National University Medical School - Biomedical Research and Institute and Clinical Trial Center for Medical Devices, Chonbuk National University Hospital, Jeonju, Korea
| | - Bo Ram Choi
- Department of Urology, Institute for Medical Sciences, Chonbuk National University Medical School - Biomedical Research and Institute and Clinical Trial Center for Medical Devices, Chonbuk National University Hospital, Jeonju, Korea
| | - Hye Kyung Kim
- College of Pharmacy, Kyungsung University, Busan, Korea
| | - Jong Kwan Park
- Department of Urology, Institute for Medical Sciences, Chonbuk National University Medical School - Biomedical Research and Institute and Clinical Trial Center for Medical Devices, Chonbuk National University Hospital, Jeonju, Korea.
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6
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Lyu X, Zhang M, Li G, Cai Y, Li G, Qiao Q. Interleukin-6 production mediated by the IRE1-XBP1 pathway confers radioresistance in human papillomavirus-negative oropharyngeal carcinoma. Cancer Sci 2019; 110:2471-2484. [PMID: 31187548 PMCID: PMC6676107 DOI: 10.1111/cas.14094] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/23/2019] [Accepted: 06/05/2019] [Indexed: 12/24/2022] Open
Abstract
Endoplasmic reticulum stress (ERS) plays a key role in the pathogenesis and development of tumors and protects tumor cells from radiation damage and drug-induced stress. We previously demonstrated that EGFR confers radioresistance in human papillomavirus (HPV)-negative human oropharyngeal carcinoma by activating ERS signaling through PERK and IRE1α. In addition, PERK confers radioresistance by activating the inflammatory cytokine NF-κB. However, the effect of IRE1 on radiosensitivity has not yet been fully elucidated. Here, we clarified that IRE1 overexpression was associated with poor outcome in HPV-negative patients treated with radiotherapy (P = 0.0001). In addition, a significantly higher percentage of radioresistant HPV-negative patients than radiosensitive HPV-negative patients exhibited high IRE expression (66.7% vs 27.8%, respectively; P = 0.001). Silencing IRE1 and XBP1 increased DNA double-strand break (DSB) and radiation-induced apoptosis, thereby increasing the radiosensitivity of HPV-negative oropharyngeal carcinoma cells. IRE1-XBP1 silencing also inhibited radiation-induced IL-6 expression at both the RNA and protein levels. The regulatory effect of IRE1-XBP1 silencing on DNA DSB-induced and radiation-induced apoptosis was inhibited by pretreatment with IL-6. These data indicate that IRE1 regulates radioresistance in HPV-negative oropharyngeal carcinoma through IL-6 activation, enhancing X-ray-induced DNA DSB and cell apoptosis.
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Affiliation(s)
- Xintong Lyu
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Miao Zhang
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Guangqi Li
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yiru Cai
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Guang Li
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qiao Qiao
- Department of Radiotherapy, The First Hospital of China Medical University, Shenyang, Liaoning, China
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Tharmalingam S, Sreetharan S, Brooks AL, Boreham DR. Re-evaluation of the linear no-threshold (LNT) model using new paradigms and modern molecular studies. Chem Biol Interact 2019; 301:54-67. [PMID: 30763548 DOI: 10.1016/j.cbi.2018.11.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/13/2018] [Accepted: 11/22/2018] [Indexed: 02/06/2023]
Abstract
The linear no-threshold (LNT) model is currently used to estimate low dose radiation (LDR) induced health risks. This model lacks safety thresholds and postulates that health risks caused by ionizing radiation is directly proportional to dose. Therefore even the smallest radiation dose has the potential to cause an increase in cancer risk. Advances in LDR biology and cell molecular techniques demonstrate that the LNT model does not appropriately reflect the biology or the health effects at the low dose range. The main pitfall of the LNT model is due to the extrapolation of mutation and DNA damage studies that were conducted at high radiation doses delivered at a high dose-rate. These studies formed the basis of several outdated paradigms that are either incorrect or do not hold for LDR doses. Thus, the goal of this review is to summarize the modern cellular and molecular literature in LDR biology and provide new paradigms that better represent the biological effects in the low dose range. We demonstrate that LDR activates a variety of cellular defense mechanisms including DNA repair systems, programmed cell death (apoptosis), cell cycle arrest, senescence, adaptive memory, bystander effects, epigenetics, immune stimulation, and tumor suppression. The evidence presented in this review reveals that there are minimal health risks (cancer) with LDR exposure, and that a dose higher than some threshold value is necessary to achieve the harmful effects classically observed with high doses of radiation. Knowledge gained from this review can help the radiation protection community in making informed decisions regarding radiation policy and limits.
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Affiliation(s)
- Sujeenthar Tharmalingam
- Northern Ontario School of Medicine, Laurentian University, 935 Ramsey Lake Rd, Sudbury, ON, P3E 2C6, Canada.
| | - Shayenthiran Sreetharan
- Department of Medical Physics and Applied Radiation Sciences, McMaster University, 1280 Main Street W, Hamilton ON, L8S 4K1, Canada
| | - Antone L Brooks
- Environmental Science, Washington State University, Richland, WA, USA
| | - Douglas R Boreham
- Northern Ontario School of Medicine, Laurentian University, 935 Ramsey Lake Rd, Sudbury, ON, P3E 2C6, Canada; Bruce Power, Tiverton, ON(3), UK.
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8
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Hu Y, Wang Y, Yan T, Feng D, Ba Y, Zhang H, Zhu J, Cheng X, Cui L, Huang H. N-acetylcysteine alleviates fluoride-induced testicular apoptosis by modulating IRE1α/JNK signaling and nuclear Nrf2 activation. Reprod Toxicol 2019; 84:98-107. [PMID: 30633982 DOI: 10.1016/j.reprotox.2019.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/10/2018] [Accepted: 01/03/2019] [Indexed: 12/12/2022]
Abstract
We previously investigated excessive fluoride exposure elicited intracellular endoplasmic reticulum (ER) stress and led to Sertoli cells dysfunction in vitro. However, the mechanisms underlying fluoride-mediated male reproductive damage in vivo remain largely unknown. Considerable evidence has now revealed ER stress is closely linked with testicular oxidative damage. Hence, we aimed to explore whether ER stress signaling was involved in the testicular protective effects of antioxidant N-acetylcysteine (NAC) against testicular apoptosis induced by fluoride. Male SD rats were oral gavaged with sodium fluoride (NaF) for 7 weeks to induce fluorosis. The animals were pretreatment with or without NAC (150 mg/Bw•d). Our results demonstrated that sub-chronic NaF exposure triggered testicular apoptosis and sex hormonal disturbance in pituitary-testicular (PT) axis, promoted oxidative stress and the expression of ER stress mediators. Antioxidant NAC, however, prevented NaF-induced testicular apoptosis accompanied by activating Nrf2-mediated antioxidant potential. Simultaneously, NAC pretreatment downregulated XBP1 splicing, reduced JNK phosphorylation and further blocked cleavage of caspase-3, all these might contribute to the inhibition of testicular cell apoptosis. Collectively, the present results suggested that prolonged administration of NAC preserved testicular function and normalized sex hormonal disruption induced by NaF via the inhibition of Nrf2-associated oxidative damage and Ire1α-JNK-mediated apoptosis in rat testis.
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Affiliation(s)
- Yazhen Hu
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Yawei Wang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Ting Yan
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Demin Feng
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Yue Ba
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Jingyuan Zhu
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Xuemin Cheng
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Liuxin Cui
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China
| | - Hui Huang
- College of Public Health, Zhengzhou University, No. 100 Kexue Avenue, Zhengzhou, 450001, Henan, PR China.
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9
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Maqsudur Rashid A, Ramalingam L, Al-Jawadi A, Moustaid-Moussa N, Moussa H. Low dose radiation, inflammation, cancer and chemoprevention. Int J Radiat Biol 2018; 95:506-515. [DOI: 10.1080/09553002.2018.1484194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Al Maqsudur Rashid
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, USA
| | - Latha Ramalingam
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Arwa Al-Jawadi
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
| | - Hanna Moussa
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, USA
- Obesity Research Cluster, Texas Tech University, Lubbock, TX, USA
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10
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Zheng X, Jin X, Li F, Liu X, Liu Y, Ye F, Li P, Zhao T, Li Q. Inhibiting autophagy with chloroquine enhances the anti-tumor effect of high-LET carbon ions via ER stress-related apoptosis. Med Oncol 2017; 34:25. [PMID: 28070729 DOI: 10.1007/s12032-017-0883-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/02/2017] [Indexed: 12/11/2022]
Abstract
Energetic carbon ions (CI) offer great advantages over conventional radiations such as X- or γ-rays in cancer radiotherapy. High linear energy transfer (LET) CI can induce both endoplasmic reticulum (ER) stress and autophagy in tumor cells under certain circumstances. The molecular connection between ER stress and autophagy in tumor exposed to high-LET radiation and how these two pathways influence the therapeutic effect against tumor remain poorly understood. In this work, we studied the impact of autophagy and apoptosis induced by ER stress following high-LET CI radiation on the radiosensitivity of S180 cells both in vitro and in vivo. In the in vitro experiment, X-rays were also used as a reference radiation. Our results documented that the combination of CI radiation with chloroquine (CQ), a special autophagy inhibitor, produced more pronounced proliferation suppression in S180 cells and xenograft tumors. Co-treatment with CI radiation and CQ could block autophagy through the IRE1/JNK/Beclin-1 axis and enhance apoptotic cell death via the activation of C/EBP homologous protein (CHOP) by the IRE1 pathway rather than PERK in vitro and in vivo. Thus, our study indicates that inhibiting autophagy might be a promising therapeutic strategy in CI radiotherapy via aggravating the ER stress-related apoptosis.
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Affiliation(s)
- Xiaogang Zheng
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China
| | - Feifei Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiongxiong Liu
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China
| | - Yan Liu
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fei Ye
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China
| | - Ping Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China
| | - Ting Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, China. .,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China. .,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu Province, China.
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11
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Li F, Luo J, Wu Z, Xiao T, Zeng O, Li L, Li Y, Yang J. Hydrogen sulfide exhibits cardioprotective effects by decreasing endoplasmic reticulum stress in a diabetic cardiomyopathy rat model. Mol Med Rep 2016; 14:865-73. [PMID: 27222111 DOI: 10.3892/mmr.2016.5289] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 03/07/2016] [Indexed: 11/06/2022] Open
Abstract
Endoplasmic reticulum (ER) stress is critical in the occurrence and development of diabetic cardiomyopathy (DC). Hydrogen sulfide (H2S) has been found to be the third gaseous signaling molecule with anti‑ER stress effects. Previous studies have shown that H2S acts as a potent inhibitor of fibrosis in the heart of diabetic rats. This study aimed to demonstrate whether H2S exhibits protective effects on the myocardium of streptozotocin (STZ)‑induced diabetic rats by suppressing ER stress. In this study, diabetic models were established by intraperitoneal (i.p.) injection of 40 mg/kg STZ. The STZ‑treated mice were divided into three groups, and subsequently treated with normal saline, 30 µmol/kg or 100 µmol/kg NaHS, i.p., respectively, for 8 weeks. The extent of myocyte hypertrophy was measured using hematoxylin and eosin‑stained sections and collagen components were investigated using immunostaining. The expression of glucose-regulated protein (Grp78), C/EBP‑homologous protein (CHOP) and caspase‑12 in the heart tissue of each group was detected by western blot analysis. It was demonstrated that H2S could improve myocardial hypertrophy and myocardial collagen deposition in diabetic rats. In addition, it could reduce the expression of Grp78, caspase-12 and CHOP. In conclusion, these findings demonstrate that H2S suppresses STZ‑induced ER stress in the hearts of rats, and it may serve as a novel cardioprotective agent for DC.
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Affiliation(s)
- Fang Li
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jian Luo
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zhixiong Wu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Ting Xiao
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Ou Zeng
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Lin Li
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yan Li
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
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Yang J, Ao N, Du J, Wang X, He Y. Protective effect of liraglutide against ER stress in the liver of high-fat diet-induced insulin-resistant rats. Endocrine 2015; 49:106-18. [PMID: 25471281 DOI: 10.1007/s12020-014-0480-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 11/11/2014] [Indexed: 12/12/2022]
Abstract
The purpose of this study was to investigate whether the glucagon-like peptide-1 (GLP-1) analog liraglutide can alleviate endoplasmic reticulum (ER) stress and insulin resistance (IR) in the liver of high-fat diet-induced insulin-resistant rats. Eighty-five male Sprague-Dawley rats were fed with normal chow or a high-fat diet for 12 weeks. The IR was evaluated using the hyperinsulinemic-euglycemic clamp technique. The rats in the HF group were further divided into four groups and were treated with or without liraglutide by subcutaneous injection. Body weight (BW), fasting blood glucose (FBG), fasting insulin (FINS), and insulin sensitivity were measured. The expression of ER stress marker GRP78 and its signaling mediators, such as IRE1α, PERK, and ATF6, in the liver were examined. The ultrastructure of the ER in the liver was examined by transmission electron microscopy. The expression levels of chemerin in the liver and the serum were also measured. After 4 weeks of liraglutide treatment, the BW, FBG, and FINS levels were significantly reduced, and the insulin sensitivity was increased compared with the HF only rats. Liraglutide reduced the expression of GRP78 and chemerin in liver tissue at both the mRNA and protein levels. Interestingly, the chemerin mRNA was closely correlated with the level of GRP78 mRNA, while the level of chemerin in serum was also associated with the FINS level. As a representative GLP-1 analog, liraglutide can suppress ER stress and reduce chemerin expression in the liver of rats exposed to a high-fat diet.
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Affiliation(s)
- Jing Yang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, China Medical University, Shenyang, 110001, China
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Yuan D, Wan JZ, Deng LL, Zhang CC, Dun YY, Dai YW, Zhou ZY, Liu CQ, Wang T. Chikusetsu saponin V attenuates MPP+-induced neurotoxicity in SH-SY5Y cells via regulation of Sirt1/Mn-SOD and GRP78/caspase-12 pathways. Int J Mol Sci 2014; 15:13209-22. [PMID: 25073091 PMCID: PMC4159789 DOI: 10.3390/ijms150813209] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 06/05/2014] [Accepted: 06/16/2014] [Indexed: 11/23/2022] Open
Abstract
Studies have shown that saponins from Panax japonicus (SPJ) possess neuroprotective effects. However, whether Chikusetsu saponin V (CsV), the most abundant member of SPJ, can exert neuroprotective effects against 1-methyl-4-phenylpyridinium ion (MPP+)-induced cytotoxicity is not known. In this study, we aimed to investigate the neuroprotective effects of CsV on MPP+-induced cytotoxicity in human neuroblastoma SH-SY5Y cells and explore its possible mechanisms. Our results show that CsV attenuates MPP+-induced cytotoxicity, inhibits ROS accumulation, and increases mitochondrial membrane potential dose-dependently. We also found that levels of Sirt1 protein and Mn-SOD mRNA significantly decreased in MPP+-treated group but were restored with CsV treatment in a dose-dependent manner. Furthermore, GRP78 protein and Caspase-12 mRNA levels were elevated by MPP+ exposure but reversed by CsV treatment. CsV inhibited the MPP+-induced downregulation of Bcl-2 and up-regulation of Bax in a dose-dependent manner and, thus, increased the ratio of Bcl-2/Bax. Overall, these results suggest that Sirt1/Mn-SOD and GRP78/Caspase-12 pathways might be involved in the CsV-mediated neuroprotective effects.
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Affiliation(s)
- Ding Yuan
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Jing-Zhi Wan
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Li-Li Deng
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Chang-Cheng Zhang
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Yao-Yan Dun
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Yan-Wen Dai
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Zhi-Yong Zhou
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
| | - Chao-Qi Liu
- Institute of Molecular Biology, China Three Gorges University, Yichang 443002, China.
| | - Ting Wang
- Department of Pharmacology, College of Medical Science, China Three Gorges University, Yichang 443002, China.
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Solanki S, Dube PR, Tano JY, Birnbaumer L, Vazquez G. Reduced endoplasmic reticulum stress-induced apoptosis and impaired unfolded protein response in TRPC3-deficient M1 macrophages. Am J Physiol Cell Physiol 2014; 307:C521-31. [PMID: 25031020 DOI: 10.1152/ajpcell.00369.2013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Endoplasmic reticulum (ER) stress is a prominent mechanism of macrophage apoptosis in advanced atherosclerotic lesions. Recent studies from our laboratory showed that advanced atherosclerotic plaques in Apoe(-/-) mice with bone marrow deficiency of the calcium-permeable channel Transient Receptor Potential Canonical 3 (TRPC3) are characterized by reduced areas of necrosis and fewer apoptotic macrophages than animals transplanted with Trpc3(+/+) bone marrow. In vitro, proinflammatory M1 but not anti-inflammatory M2 macrophages derived from Trpc3(-/-)Apoe(-/-) animals exhibited reduced ER stress-induced apoptosis. However, whether this was due to a specific effect of TRPC3 deficiency on macrophage ER stress signaling remained to be determined. In the present work we used polarized macrophages derived from mice with macrophage-specific deficiency of TRPC3 to examine the expression level of ER stress markers and the activation status of some typical mediators of macrophage apoptosis. We found that the reduced susceptibility of TRPC3-deficient M1 macrophages to ER stress-induced apoptosis correlates with an impaired unfolded protein response (UPR), reduced mitochondrion-dependent apoptosis, and reduced activation of the proapoptotic molecules calmodulin-dependent protein kinase II and signal transducer and activator of transcription 1. Notably, none of these pathways was altered in TRPC3-deficient M2 macrophages. These findings show for the first time an obligatory requirement for a member of the TRPC family of cation channels in ER stress-induced apoptosis in macrophages, underscoring a rather selective role of the TRPC3 channel on mechanisms related to the UPR signaling in M1 macrophages.
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Affiliation(s)
- Sumeet Solanki
- Department of Physiology and Pharmacology and Center for Diabetes and Endocrine Research, University of Toledo Health Science Campus, Toledo, Ohio; and
| | - Prabhatchandra R Dube
- Department of Physiology and Pharmacology and Center for Diabetes and Endocrine Research, University of Toledo Health Science Campus, Toledo, Ohio; and
| | - Jean-Yves Tano
- Department of Physiology and Pharmacology and Center for Diabetes and Endocrine Research, University of Toledo Health Science Campus, Toledo, Ohio; and
| | - Lutz Birnbaumer
- Laboratory of Membrane Signaling, Department of Signal Transduction, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Guillermo Vazquez
- Department of Physiology and Pharmacology and Center for Diabetes and Endocrine Research, University of Toledo Health Science Campus, Toledo, Ohio; and
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