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Contreras-Ochoa CO, Bahena-Román M, López-Díaz LY, Lagunas-Martínez A, Mojica-Cardoso C, Manzo-Merino J, Torres-Poveda K, Madrid-Marina V. Fas and Fas ligand are highly expressed in lymphocytes from cervical intraepithelial neoplasia and cervical cancer patients: A possible role for immune escaping. Iran J Basic Med Sci 2022; 25:383-389. [PMID: 35656191 PMCID: PMC9148406 DOI: 10.22038/ijbms.2022.61808.13678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/13/2022] [Indexed: 11/18/2022]
Abstract
Objectives Infection with high-risk human papillomavirus is required to develop cervical cancer. Some viruses modulate the Fas/FasL signaling to evade the immune response; the role of these molecules in cervical cancer is not clear. In this study, we measured the expression levels of Fas and FasL mRNA, soluble proteins, and cell surface proteins in peripheral blood mononuclear cells from patients with low- and high-grade squamous intraepithelial lesions and cervical cancer in relation to healthy women, to gain new insights into the role of Fas/FasL in cervical cancer development. Materials and Methods Fas/FasL mRNA expression was measured in cervical tissues and peripheral blood mononuclear cells from patients and healthy subjects; serum soluble proteins Fas/FasL were measured by ELISA, and cell-surface protein expression was detected by flow cytometry. Results Varying expression levels were found for both molecules. Cervical Fas and FasL mRNA expression was decreased in low- and high-grade lesions, but it was increased in cervical cancer cases. While, systemic Fas mRNA expression increased as malignity progressed; systemic FasL mRNA expression was increased in low- and high-grade lesions, but it was decreased in cancer patients. Soluble FasL levels decreased as lesions progressed, while soluble Fas levels increased. Finally, overexpression of Fas/FasL on the surface of peripheral blood mononuclear cells was found in patients with low-grade lesion with respect to healthy donors. Conclusion Fas and FasL act as negative modulators of the immune response, probably by removing specific cytotoxic T lymphocytes against papillomavirus -infected cells and tumor cells.
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Affiliation(s)
- Carla O. Contreras-Ochoa
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- These authors contributed equally to this work
| | - Margarita Bahena-Román
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- These authors contributed equally to this work
| | - Luz Yvette López-Díaz
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
| | - Alfredo Lagunas-Martínez
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
| | - Carlos Mojica-Cardoso
- Laboratorio de Patología, Hospital del Niño Morelense. Av. de la Salud 1, Col. Benito Juárez, Emiliano Zapata, Morelos, México
| | - Joaquín Manzo-Merino
- Consejo Nacional de Ciencia y Tecnología (CONACyT)-Instituto Nacional de Cancerología, San Fernando 22, Col. Sección XVI, Tlalpan, Ciudad de México, México
| | - Kirvis Torres-Poveda
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- Consejo Nacional de Ciencia y Tecnología (CONACyT)-Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Vicente Madrid-Marina
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
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Cheng SM, Kumar VB, Wu LY, Chang HC, Kuo CH, Wei LS, Lin YM, Padma VV, Lee SD, Huang CY. Anti-apoptotic and pro-survival effects of longan flower extracts on rat hearts with fructose-induced metabolic syndrome. Environ Toxicol 2021; 36:1021-1030. [PMID: 33475235 DOI: 10.1002/tox.23101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 01/02/2021] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to investigate the effects of longan flower (LF) water extract on cardiac apoptotic and survival pathways in rat models of fructose-induced metabolic syndrome. The study findings revealed that the levels of glucose, insulin, triglyceride, and cholesterol and TUNEL-positive apoptotic cells were significantly increased in the HF group compared with the control group; whereas, the levels were decreased in the HFLF group. The expressions of Fas, FADD, and activated caspases 8 and 3, as well as the expressions of Bax, Bak, Bax/Bcl-2, Bak/Bcl-xL, cytosolic cytochrome c, and activated caspases 9 and 3 were increased in the HF group were significantly reversed in HFLF administrated group. Furthermore, LF extract increased IGF-1R, p-PI3K, p-Akt, Bcl-2, and Bcl-xL expression compared to HF group. Taken together, the present findings help identify LF as a potential cardioprotective agent that can be effectively used in treating fructose-induced metabolic syndrome.
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Affiliation(s)
- Shiu-Min Cheng
- Department of Long Term Care, National Quemoy University, Kinmen County, Taiwan
| | - V Bharath Kumar
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Liang-Yi Wu
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan, Taiwan
| | - Hsiao-Chuan Chang
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, Taipei Physical Education College, Taipei, Taiwan
| | - Li-Shan Wei
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Yueh-Min Lin
- Department of pathology, Changhua Christian Hospital, Changhua, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - Shin-Da Lee
- Department of Physical Therapy, Asia University, Taichung, Taiwan
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Cardiovascular and Mitochondria Related Diseases Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, Taiwan
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3
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Borilova Linhartova P, Gachova D, Lipovy B. Responsiveness to i.v. immunoglobulin therapy in patients with toxic epidermal necrolysis: A novel pharmaco-immunogenetic concept. J Dermatol 2020; 47:1236-1248. [PMID: 32935409 DOI: 10.1111/1346-8138.15583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022]
Abstract
Toxic epidermal necrolysis (TEN) represents a rare drug-induced autoimmune reaction with delayed-type hypersensitivity that initiates the process of developing massive keratinocyte apoptosis, dominantly in the dermoepidermal junction. Although the etiopathophysiology has not yet been fully elucidated, the binding of Fas ligand (FasL, CD95L) to the Fas receptor (CD95) was shown to play a key role in the induction of apoptosis in this syndrome. The knowledge of the role of immunoglobulin G (IgG) in inhibition of Fas-mediated apoptosis contributed to the introduction of i.v. Ig (IVIg) in the therapy of TEN patients. Despite great enthusiasm for this therapy at the end of the 1990s, subsequent studies in various populations and meta-analyses could not unequivocally confirm the efficacy of the IVIg-based treatment concept. Today, therefore, we are faced with the dilemmas of how to adjust therapy of TEN patients most effectively, which patients could benefit from IVIg therapy and what dose of the preparation should be administrated. The ground-breaking question is: do the host genetic profiles influence the responsiveness and side-effects of IVIg therapy in TEN patients? Based on recent pharmacological, immunological and genetic findings, we suggest that the variability of IVIg therapy outcomes in TEN patients may be related to functional variants in Fas, FasL and Fc-γ receptor genes. This novel concept could lead to improved quality of care for patients with TEN, facilitating personalized therapy to reduce mortality.
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Affiliation(s)
- Petra Borilova Linhartova
- Institute of Medical Genetics, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Clinic of Stomatology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Department of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic.,Clinic of Maxillofacial Surgery, Institution shared with University Hospital Brno, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Daniela Gachova
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Bretislav Lipovy
- Department of Burns and Plastic Surgery, Institution shared with University Hospital Brno, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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Strizova Z, Snajdauf M, Stakheev D, Taborska P, Vachtenheim J Jr, Biskup J, Lischke R, Bartunkova J, Smrz D. The paratumoral immune cell signature reveals the potential for the implementation of immunotherapy in esophageal carcinoma patients. J Cancer Res Clin Oncol 2020; 146:1979-92. [PMID: 32447483 DOI: 10.1007/s00432-020-03258-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 05/12/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE Esophageal cancer (EC) is one of the most lethal gastrointestinal malignancies. Immunotherapy is a promising treatment modality for this disease. However, broader implementation of EC immunotherapy has been discouraged because of insufficient understanding of tumor interactions with the immune system. As with other malignancies, the current research on EC focuses on deciphering the immune cell signatures within the tumor microenvironment. However, the disease-elicited immune cell profiles in the paratumoral compartments are largely unknown. METHODS We examined the immune cell signatures in 62 tissue samples from 16 EC patients in different esophageal tissue compartments: tumor tissue, peritumoral tissue, healthy esophageal tissue, and adjacent lymph nodes. We analyzed the proportions and distribution patterns of NK cells and CD4+ and CD8+ T cells as well as their death receptor (FasR, FasR/DR3)-expressing subpopulations. The analyzed data were then compared and correlated with the patients' clinicopathological data. RESULTS We found that the FasR+ NK cells, CD4+ and CD8+ T cells infiltrated lymph nodes at the lowest levels and that the FasR+DR3+ CD4+ T cells were enhanced in tumors. The comparisons with the clinicopathological data revealed a major impact of active smoking on the reduction in paratumoral NK cells and the upregulation of FasR in tumor-infiltrating NK and CD8+ T cells. The lymph node metastatic stage, tumor stage, and Mandard grade correlated with the compartmental proportions of the evaluated immune cells. CONCLUSION The novel association of the disease state with tumoral and paratumoral immune cell signatures suggests new possibilities for personalized immunotherapy for EC patients.
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5
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Alotaibi F, Rytelewski M, Figueredo R, Zareardalan R, Zhang M, Ferguson PJ, Maleki Vareki S, Najajreh Y, El-Hajjar M, Zheng X, Min WP, Koropatnick J. CD5 blockade enhances ex vivo CD8 + T cell activation and tumour cell cytotoxicity. Eur J Immunol 2020; 50:695-704. [PMID: 31943150 DOI: 10.1002/eji.201948309] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 12/17/2019] [Accepted: 01/13/2020] [Indexed: 12/24/2022]
Abstract
CD5 is expressed on T cells and a subset of B cells (B1a). It can attenuate TCR signalling and impair CTL activation and is a therapeutic targetable tumour antigen expressed on leukemic T and B cells. However, the potential therapeutic effect of functionally blocking CD5 to increase T cell anti-tumour activity against tumours (including solid tumours) has not been explored. CD5 knockout mice show increased anti-tumour immunity: reducing CD5 on CTLs may be therapeutically beneficial to enhance the anti-tumour response. Here, we show that ex vivo administration of a function-blocking anti-CD5 MAb to primary mouse CTLs of both tumour-naïve mice and mice bearing murine 4T1 breast tumour homografts enhanced their capacity to respond to activation by treatment with anti-CD3/anti-CD28 MAbs or 4T1 tumour cell lysates. Furthermore, it enhanced TCR signalling (ERK activation) and increased markers of T cell activation, including proliferation, CD69 levels, IFN-γ production, apoptosis and Fas receptor and Fas ligand levels. Finally, CD5 function-blocking MAb treatment enhanced the capacity of CD8+ T cells to kill 4T1-mouse tumour cells in an ex vivo assay. These data support the potential of blockade of CD5 function to enhance T cell-mediated anti-tumour immunity.
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Affiliation(s)
- Faizah Alotaibi
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada.,London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada
| | | | - Rene Figueredo
- Department of Oncology, University of Western Ontario, London, Ontario, Canada
| | - Ronak Zareardalan
- London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada
| | - Meng Zhang
- Institute of Immunotherapy, Nanchang University and Jiangxi Academy of Medical Sciences, Nanchang, China
| | - Peter J Ferguson
- London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada
| | - Saman Maleki Vareki
- London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada.,Department of Oncology, University of Western Ontario, London, Ontario, Canada
| | - Yousef Najajreh
- Anticancer Drugs Research Lab, Faculty of Pharmacy, Al-Quds University, Jerusalem, Abu-Dies, Palestine
| | - Mikal El-Hajjar
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada.,London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada
| | - Xiufen Zheng
- Department of Oncology, University of Western Ontario, London, Ontario, Canada
| | - Wei-Ping Min
- Department of Oncology, University of Western Ontario, London, Ontario, Canada.,Institute of Immunotherapy, Nanchang University and Jiangxi Academy of Medical Sciences, Nanchang, China
| | - James Koropatnick
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada.,London Regional Cancer Program, Lawson Health Research Institute, London, Ontario, Canada.,Department of Oncology, University of Western Ontario, London, Ontario, Canada
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Krishnan A, Kocab AJ, Zacks DN, Marshak-Rothstein A, Gregory-Ksander M. A small peptide antagonist of the Fas receptor inhibits neuroinflammation and prevents axon degeneration and retinal ganglion cell death in an inducible mouse model of glaucoma. J Neuroinflammation 2019; 16:184. [PMID: 31570110 PMCID: PMC6767653 DOI: 10.1186/s12974-019-1576-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/29/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Glaucoma is a complex, multifactorial disease where apoptosis, microglia activation, and inflammation have been linked to the death of retinal ganglion cells (RGCs) and axon degeneration. We demonstrated previously that FasL-Fas signaling was required for axon degeneration and death of RGCs in chronic and inducible mouse models of glaucoma and that Fas activation triggered RGC apoptosis, glial activation, and inflammation. Here, we investigated whether targeting the Fas receptor with a small peptide antagonist, ONL1204, has anti-inflammatory and neuroprotective effects in a microbead-induced mouse model of glaucoma. METHODS Intracameral injection of microbeads was used to elevate intraocular pressure (IOP) in Fas-deficient (Faslpr) mice and WT C57BL/6J mice that received an intravitreal injection of the Fas inhibitor, ONL1204 (2 μg/1 μl) (or vehicle only), on day 0 or day 7 after microbead injection. The IOP was monitored by rebound tonometry, and at 28 days post-microbead injection, Brn3a-stained RGCs and paraphenylenediamine (PPD)-stained axons were analyzed. The effects of ONL1204 on retinal microglia activation and the expression of inflammatory genes were analyzed by immunostaining of retinal flatmounts and quantitative PCR (qPCR). RESULTS Rebound tonometry showed equivalent elevation of IOP in all groups of microbead-injected mice. At 28 days post-microbead injection, the RGC and axon counts from microbead-injected Faslpr mice were equivalent to saline-injected (no IOP elevation) controls. Treatment with ONL1204 also significantly reduced RGC death and loss of axons in microbead-injected WT mice when compared to vehicle-treated controls, even when administered after IOP elevation. Confocal analysis of Iba1-stained retinal flatmounts and qPCR demonstrated that ONL1204 also abrogated microglia activation and inhibited the induction of multiple genes implicated in glaucoma, including cytokines and chemokines (GFAP, Caspase-8, TNFα, IL-1β, IL-6, IL-18, MIP-1α, MIP-1β, MIP-2, MCPI, and IP10), components of the complement cascade (C3, C1Q), Toll-like receptor pathway (TLR4), and inflammasome pathway (NLRP3). CONCLUSIONS These results serve as proof-of-principal that the small peptide inhibitor of the Fas receptor, ONL1204, can provide robust neuroprotection in an inducible mouse model of glaucoma, even when administered after IOP elevation. Moreover, Fas signaling contributes to the pathogenesis of glaucoma through activation of both apoptotic and inflammatory pathways.
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Affiliation(s)
- Anitha Krishnan
- Department of Ophthalmology, The Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, 20 Staniford Street, Boston, MA, USA
| | | | - David N Zacks
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Ann Marshak-Rothstein
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Meredith Gregory-Ksander
- Department of Ophthalmology, The Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, 20 Staniford Street, Boston, MA, USA.
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Savari F, Badavi M, Rezaie A, Gharib-Naseri MK, Mard SA. Evaluation of the therapeutic potential effect of Fas receptor gene knockdown in experimental model of non-alcoholic steatohepatitis. Free Radic Res 2019; 53:486-496. [PMID: 31010354 DOI: 10.1080/10715762.2019.1608982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Aim: Stimulation of Fas death receptor is introduced as a major cause of non-alcoholic steatohepatitis (NASH) progression through suppression of cell viability. Therefore, the blocking of death pathways is hypothesised to be express new approaches to NASH therapy. For this purpose, current experiment applied synthetic small interference RNA (SiRNA) to trigger Fas death receptor and to show its potential therapeutic role in designed NASH model. Methods: Male mice were placed on a western diet (WD) for 8 weeks and exposed to cigarette smoke during the last 4 weeks of feeding to induce NASH model. In the next step, Fas SiRNA was injected to mice aiming to examine specific Fas gene silencing, after 8 weeks. As a control, mice received scrambled SiRNA. Reversible possibility of disease was examined by 3 weeks of recovery. Results: Analysis of data is accompanied with the significant histopathological changes (steatosis, ballooning and inflammation), increased lipid profile and hepatic enzyme activities (AST, ALT, ALP) plus TBARS as well as decreased antioxidants levels in NASH model. Upon Fas-SiRNA injection, almost all measured parameters of NASH such as overexpression of Fas receptor, caspase3, NF-kB genes and marked increase of hepatic TNF-α were significantly restored and were remained nearly unchanged following recovery liking as scrambled groups. Conclusions: The suppression of Fas receptor signalling subsequent RNAi therapy may represent an applicable strategy to decline hepatocyte damages and so NASH progression in mice.
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Affiliation(s)
- Feryal Savari
- a Physiology Research Center (PRC), Department of Physiology, School of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mohammad Badavi
- a Physiology Research Center (PRC), Department of Physiology, School of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Anahita Rezaie
- b Department of Pathobiology, School of Veterinary Medicine , Shahid Chamran University of Ahvaz , Ahvaz , Iran
| | - Mohammad Kazem Gharib-Naseri
- a Physiology Research Center (PRC), Department of Physiology, School of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Seyyed Ali Mard
- c Persian Gulf's Physiology Research Center (PRC), Alimentary Tract Research Center, Department of Physiology, School of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
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Jalali SA, Homaei Shandiz F, Tavakol Afshari J, Davarpanah Tanha Ghochan M, Nikpoor AR, Mohammadi M. Status of FAS and FAS Ligand Gene Polymorphisms in Patients with Breast Cancer in Northeastern IRAN. Rep Biochem Mol Biol 2018; 7:23-29. [PMID: 30324114 PMCID: PMC6175584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/17/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND The First apoptosis signal (FAS) and First apoptosis signal ligand (FASL) genes initiate the apoptosis pathway, playing a central role in the tumor growth and metastasis. Gene polymorphisms including -1377 G/A in the promoter region of FAS and -844 C/T in the promoter region of FASL have shown to change the transcription activities of these genes. METHODS In this study we evaluated association of these polymorphisms with risk of metastasis of breast cancer, in a population selected from Mashhad, Iran. A total of 115 patients with breast cancer and 115 controls were recruited in this case-control study. Polymerase Chain Reaction-based Restriction Fragment Length Polymorphism (PCR-RFLP) was applied for genotyping on extracted DNA from participant's blood. Unconditional logistic regression was used to estimate cancer risk by calculating odds ratios (OR) and their 95% confidence intervals (95% CIs). RESULTS There was no significant association between these genetic polymorphisms and breast cancer risk. Additionally, our results showed no significant influence from the above mentioned gene polymorphisms on metastasis of breast cancer. CONCLUSION These results suggest that the FAS-1377G/A and FASL-844 C/T gene polymorphism don't have much influence on the susceptibility to metastasis of breast cancer in northeastern Iranian population. Therefore, we suggest to investigate impact of other candidate gene polymorphisms on metastasis of breast cancer for future research.
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Affiliation(s)
- Seyed Amir Jalali
- Department of Immunology, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Homaei Shandiz
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Jalil Tavakol Afshari
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amin Reza Nikpoor
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojgan Mohammadi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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9
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Domagała-Kulawik J, Kwiecień I, Bielicki P, Skirecki T. Fas-positive lymphocytes are associated with systemic inflammation in obstructive sleep apnea syndrome. Sleep Breath 2018; 23:673-678. [PMID: 30171418 PMCID: PMC6529390 DOI: 10.1007/s11325-018-1713-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 12/28/2022]
Abstract
PURPOSE Obstructive sleep apnea syndrome (OSAS) is associated with alterations in immune system which may lead to serious complications. The aim of this study was to explore lymphocyte populations in OSAS with special attention to the Fas-positive cells. METHODS Fifty-one patients with confirmed OSA and 20 healthy subjects were investigated. The OSA severity indices, data concerning comorbidities, and markers of inflammation and metabolic disorders were collected. Flow cytometry was used to analyze the lymphocyte profile and expression of Fas receptors (CD95). Concentration of adiponectin, IL-1β, TNF-α, and sFas were measured. RESULTS Proportions of Fas-positive cells in the pool of CD4+ and Fas-positive in the pool of CD8+ cells in the blood of patients were significantly increased when compared with healthy subjects (74.5% vs. 65.6% and 78.8% vs.70.9%, respectively, p < 0.05). No correlation with OSA severity was found. However, the proportion and number of Fas+ cells were elevated in obese patients, in non-smokers, and in patients suffering from COPD and hypertension. There were several significant relations of Fas+ cells with inflammatory markers of systemic inflammation. CONCLUSION Lymphocytes with the expression of Fas receptor are associated with systemic inflammation in OSAS.
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Affiliation(s)
- Joanna Domagała-Kulawik
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, ul. Banacha 1a, 02 097, Warsaw, Poland
| | - Iwona Kwiecień
- Laboratory of Flow Cytometry, Department of Internal Medicine and Hematology, Military Medical Institute, ul. Szaserow 128, 04 141, Warsaw, Poland
| | - Piotr Bielicki
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, ul. Banacha 1a, 02 097, Warsaw, Poland
| | - Tomasz Skirecki
- Laboratory of Flow Cytometry, Department of Anesthesiology and Intensive Care, Centre of Postgraduate Medical Education, ul. Marymoncka 99/103, 01 813, Warsaw, Poland.
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10
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Thiyagarajan D, Pedersen HL, Seredkina N, Horvei KD, Arranz L, Sonneveld R, Nijenhuis T, van der Vlag J, Rekvig OP. IL-1β Promotes a New Function of DNase I as a Transcription Factor for the Fas Receptor Gene. Front Cell Dev Biol 2018; 6:7. [PMID: 29468159 PMCID: PMC5807897 DOI: 10.3389/fcell.2018.00007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/23/2018] [Indexed: 12/26/2022] Open
Abstract
Recently we described that endonuclease inactive DNase I translocated into the nucleus in response to increased endogenous IL-1β expression. Here, we demonstrate impact and function of translocated DNase I in tubular cells. Effect of cytokines on expression level and nuclear localisation of DNase I and corresponding levels of Fas receptor (FasR) and IL-1β were determined by confocal microscopy, qPCR and western blot analyses, in presence or absence of siRNA against IL-1β and DNase I mRNA. Nuclear DNase I bound to the FAS promotor region as determined by chromatin immuno-precipitation analysis. Data demonstrate that; (i) translocation of DNase I depended on endogenous de novo-expressed IL-1β, (ii) nuclear DNase I bound FAS DNA, (iii) FasR expression increased after translocation of DNase I, (iv) interaction of exogenous Fas ligand (FasL) with upregulated FasR induced apoptosis in human tubular cells stimulated with TNFα. Thus, translocated DNase I most probably binds the promoter region of the FAS gene and function as a transcription factor for FasR. In conclusion, DNase I not only executes chromatin degradation during apoptosis and necrosis, but also primes the cells for apoptosis by enhancing FasR expression.
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Affiliation(s)
- Dhivya Thiyagarajan
- RNA and Molecular Pathology Research Group, Department of Medical Biology, University Hospital of North Norway, Tromsø, Norway
| | - Hege L. Pedersen
- RNA and Molecular Pathology Research Group, Department of Medical Biology, University Hospital of North Norway, Tromsø, Norway
| | - Natalya Seredkina
- RNA and Molecular Pathology Research Group, Department of Medical Biology, University Hospital of North Norway, Tromsø, Norway
| | - Kjersti D. Horvei
- RNA and Molecular Pathology Research Group, Department of Medical Biology, University Hospital of North Norway, Tromsø, Norway
| | - Lorena Arranz
- Stem Cell Aging and Cancer Research Group, Department of Medical Biology, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Ramon Sonneveld
- Department of Nephrology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Tom Nijenhuis
- Department of Nephrology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Johan van der Vlag
- Department of Nephrology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Ole P. Rekvig
- RNA and Molecular Pathology Research Group, Department of Medical Biology, University Hospital of North Norway, Tromsø, Norway
- Department of Radiology, University Hospital of North Norway, Tromsø, Norway
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11
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Segiet OA, Deska M, Mielańczyk Ł, Brzozowa-Zasada M, Buła G, Gawrychowski J, Wojnicz R. Expression of TRAIL and Fas in Primary Hyperparathyroidism. J INVEST SURG 2016; 30:242-246. [PMID: 27763797 DOI: 10.1080/08941939.2016.1236159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIM Differentiating between parathyroid lesions is still difficult and ambiguous. In cases of primary hyperparathyroidism, appropriate and prompt diagnosis is of great importance for effective treatment and follow-up. A great amount of mechanisms contribute to the pathogenesis of primary hyperparathyroidism, such as disturbance in balance between pro- and anti-apoptotic factors. Therefore, we examined whether immunohistochemical expression of apoptotic factors, TNF-related apoptosis-inducing ligand (TRAIL) and Fas, could have clinical utility as a marker of proliferative lesions of parathyroid gland. MATERIALS AND METHODS Parathyroid specimens of 58 consecutive patients who had undertaken surgery due to primary hyperparathyroidism were incubated with purified mouse monoclonal antihuman antibodies: anti-TRAIL and anti-Fas. Staining was considered positive when at least 5% of the cells showed immunoreactivity. RESULTS The percentage of cells which were positively stained for TRAIL in parathyroid hyperplasia was 9.65%, in parathyroid adenoma 8.31%, and in normal controls 2.24%. Immunoreactivity for TRAIL was detected in 91.89% of parathyroid hyperplasias, 85.71% of parathyroid adenomas, and none in healthy glands. The percentage of cells with a positive reaction to Fas in parathyroid hyperplasia was 8.92%, in parathyroid adenoma 8.09%, and in normal tissue 1.9%. The expression of Fas was found in 94.59% of parathyroid hyperplasias, 90.48% of parathyroid adenomas, and none in healthy glands. CONCLUSIONS In our study, hyperplasias demonstrated the highest expression of TRAIL and Fas, whereas in adenomas it was increased compared to normal tissue, but lower than in hyperplasias. These factors could be an additive tool in the differential diagnosis of parathyroid lesions.
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Affiliation(s)
- Oliwia Anna Segiet
- a Department of Histology and Embryology , School of Medicine with the Division of Dentistry, Medical University of Silesia , Jordana 19, Zabrze , Poland
| | - Mariusz Deska
- b Department of General and Endocrine Surgery , School of Medicine with the Division of Dentistry, Medical University of Silesia , Stefana Batorego 15, Bytom , Poland
| | - Łukasz Mielańczyk
- a Department of Histology and Embryology , School of Medicine with the Division of Dentistry, Medical University of Silesia , Jordana 19, Zabrze , Poland
| | - Marlena Brzozowa-Zasada
- a Department of Histology and Embryology , School of Medicine with the Division of Dentistry, Medical University of Silesia , Jordana 19, Zabrze , Poland
| | - Grzegorz Buła
- b Department of General and Endocrine Surgery , School of Medicine with the Division of Dentistry, Medical University of Silesia , Stefana Batorego 15, Bytom , Poland
| | - Jacek Gawrychowski
- b Department of General and Endocrine Surgery , School of Medicine with the Division of Dentistry, Medical University of Silesia , Stefana Batorego 15, Bytom , Poland
| | - Romuald Wojnicz
- a Department of Histology and Embryology , School of Medicine with the Division of Dentistry, Medical University of Silesia , Jordana 19, Zabrze , Poland
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12
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Koizumi Y, Nagase H, Nakajima T, Kawamura M, Ohta K. Toll-like receptor 3 ligand specifically induced bronchial epithelial cell death in caspase dependent manner and functionally upregulated Fas expression. Allergol Int 2016; 65 Suppl:S30-7. [PMID: 27321649 DOI: 10.1016/j.alit.2016.05.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 05/10/2016] [Accepted: 05/11/2016] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Viral infections are the most common cause of asthma exacerbation. Virally infected epithelial cells undergo apoptosis. Although in healthy conditions, apoptosis may have a host-defensive role in limiting virus spread, this process may have a detrimental effect on damaged epithelium in asthma. Toll-like receptors (TLRs) are the receptors for various pathogens, and viruses possess several components that can activate TLR3, TLR4, and TLR7/8. However, as it has not been determined as to which component is responsible for virus-induced epithelial cell apoptosis, we comprehensively analyzed the effects of all TLR ligands on apoptosis. METHODS BEAS-2B cells or primary cultured human bronchial epithelial cells (PBECs) were stimulated by TLR 2, 3, 4, 5, 7/8, and 9 ligands and cell death was analyzed by flow cytometry. Chemokine generations induced by these ligands were also analyzed. RESULTS The TLR3 ligand polyinosinic-polycytidylic acid (poly I:C) specifically induced chemokine generation and apoptosis, while other TLR ligands including those for TLR5, 7/8, and 9 had no effect. The response to poly I:C had two phases, which included rapid secretion of chemokines and subsequent apoptosis in a later phase. Poly I:C induced apoptosis in a caspase-dependent manner and functionally upregulated the expression of Fas. CONCLUSIONS Previous findings indicating that viruses induced caspase-dependent death and upregulated Fas expression were reproduced by poly I:C, suggesting the central role of dsRNA/TLR3 in virus-induced apoptosis. Since these processes may have detrimental effects on pre-existing epithelial damage, the dsRNA/TLR3 pathway may be potential novel treatment target for virus-induced exacerbation of asthma.
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13
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Pai P, Lai CJ, Lin CY, Liou YF, Huang CY, Lee SD. Effect of superoxide anion scavenger on rat hearts with chronic intermittent hypoxia. J Appl Physiol (1985) 2016; 120:982-90. [PMID: 26769958 DOI: 10.1152/japplphysiol.01109.2014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/08/2016] [Indexed: 12/18/2022] Open
Abstract
Only very limited information regarding the protective effects of the superoxide anion scavenger on chronic intermittent hypoxia-induced cardiac apoptosis is available. The purpose of this study is to evaluate the effects of the superoxide anion scavenger on cardiac apoptotic and prosurvival pathways in rats with sleep apnea. Forty-two Sprague-Dawley rats were divided into three groups, rats with normoxic exposure (Control, 21% O2, 1 mo), rats with chronic intermittent hypoxia exposure (Hypoxia, 3-7% O2vs. 21% O2per 40 s cycle, 8 h per day, 1 mo), and rats with pretreatment of the superoxide anion scavenger and chronic intermittent hypoxia exposure (Hypoxia-O2 (-)-Scavenger, MnTMPyP pentachloride, 1 mg/kg ip per day; 3-7% O2vs. 21% O2per 40 s cycle, 8 h per day, 1 mo) at 5-6 mo of age. After 1 mo, the protein levels and apoptotic cells of excised hearts from three groups were measured by Western blotting and terminal deoxynucleotide transferase-mediated dUTP nick end labeling (TUNEL) assay. The superoxide anion scavenger decreased hypoxia-induced myocardial architecture abnormalities, left ventricular hypertrophy, and TUNEL-positive apoptosis. The superoxide anion scavenger decreased hypoxia-induced Fas ligand, Fas death receptors, Fas-associated death domain (FADD), activated caspase-8, and activated caspase-3 (Fas-dependent apoptotic pathway) as well as Bad, activated caspase-9 and activated caspase-3 (mitochondria-dependent apoptotic pathway), endonuclease G (EndoG), apoptosis-inducing factor (AIF), and TUNEL-positive apoptosis. The superoxide anion scavenger increased IGF-1, IGF-1R, p-PI3k, p-Akt, p-Bad, Bcl-2, and Bcl-xL (survival pathway). Our findings imply that the superoxide anion scavenger might prevent cardiac Fas-mediated and mitochondrial-mediated apoptosis and enhance the IGF-1-related survival pathway in chronic intermittent hypoxia. The superoxide anion scavenger may prevent chronic sleep apnea-enhanced cardiac apoptotic pathways and enhances cardiac survival pathways.
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Affiliation(s)
- Peiying Pai
- China Medical University, Graduate Institute of Clinical Medical Science, Taichung, Taiwan; Division of Cardiology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Ching Jung Lai
- Department of Physiology, Tzu Chi University, Hualien, Taiwan
| | - Ching-Yuang Lin
- China Medical University, Graduate Institute of Clinical Medical Science, Taichung, Taiwan; Clinical Immunology Center, China Medical University Hospital, Taichung, Taiwan
| | - Yi-Fan Liou
- Division of Cardiology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan; Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Shin-Da Lee
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Occupational Therapy, Asia University, Taichung, Taiwan; and Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan
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14
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Sánchez MF, Levi V, Weidemann T, Carrer DC. Agonist mobility on supported lipid bilayers affects Fas mediated death response. FEBS Lett 2015; 589:3527-33. [PMID: 26484594 DOI: 10.1016/j.febslet.2015.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 11/29/2022]
Abstract
Extrinsic apoptosis is initiated by recognition and clustering of the single-pass transmembrane proteins Fas ligand and Fas expressed at the surface of closely apposed lymphocytes and target cells, respectively. Since Fas-mediated death response was mainly studied with soluble antibodies, the mobility constraints for receptor activation by a membrane embedded agonist is not well understood. We explored this influence by stimulating apoptosis on functionalized supported lipid bilayers, where we quantified agonist mobility by z-scan fluorescence correlation spectroscopy. Using different lipid compositions, we show that the apoptotic response correlates with increased lateral mobility of the agonist in the lipid bilayer.
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Affiliation(s)
- M Florencia Sánchez
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), CONICET-Universidad Nacional de Córdoba, Friuli 2434, CC389, 5000 Córdoba, Argentina
| | - Valeria Levi
- Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
| | - Thomas Weidemann
- Max Planck Institute of Biochemistry, Cellular and Molecular Biophysics, Am Klopferspitz 18, 82152 Martinsried, Germany.
| | - Dolores C Carrer
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), CONICET-Universidad Nacional de Córdoba, Friuli 2434, CC389, 5000 Córdoba, Argentina.
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15
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Grygorczuk S, Osada J, Moniuszko A, Świerzbińska R, Kondrusik M, Zajkowska J, Dunaj J, Dąbrowska M, Pancewicz S. Increased expression of Fas receptor and Fas ligand in the culture of the peripheral blood mononuclear cells stimulated with Borrelia burgdorferi sensu lato. Ticks Tick Borne Dis 2014; 6:189-97. [PMID: 25541498 DOI: 10.1016/j.ttbdis.2014.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 12/01/2014] [Accepted: 12/02/2014] [Indexed: 10/24/2022]
Abstract
Apoptosis of the lymphocytes plays an essential role in the regulation of inflammatory/immune responses and its abnormalities may contribute to a chronic infection, persistent inflammation and autoimmunity. Its role in the pathogenesis of the late Lyme borreliosis manifestations has not been studied so far. We have measured Th lymphocyte apoptosis rate, membrane expression of pro-apoptotic Fas receptor, and supernatant concentrations of selected soluble pro- and anti-apoptotic mediators in cultures of peripheral blood mononuclear cells from 16 patients with disseminated Lyme borreliosis (6 with osteoarticular symptoms, 7 with neuroborreliosis and 3 with acrodermatitis chronica atrophicans) and 8 healthy controls. The cultures stimulated for 48h with live Borrelia burgdorferi sensu stricto, B. garinii or B. afzelii spirochetes. Fraction of the apoptotic Th (CD3+CD4+) lymphocytes and expression of Fas in this cell population was measured cytometrically and concentrations of soluble Fas, soluble Fas ligand, IL-10, IL-12 and TGF-β in culture supernatant with ELISA assays. The expression of IL-10, soluble and membrane Fas and soluble Fas ligand was increased under stimulation and higher in the presence of B. burgdorferi sensu stricto than the other species. Apoptosis rate was not affected. There was no difference between Lyme borreliosis patients and controls. IL-10 concentration correlated negatively with the membrane Fas expression and apoptosis under stimulation with B. afzelii and B. garinii. Expression of Fas/FasL system is up-regulated under stimulation with B. burgdorferi, but without corresponding increase in lymphocyte apoptosis. Variable responses observed with different B. burgdorferi species may reflect differences in the pathogenesis of the infection in vivo.
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Affiliation(s)
- Sambor Grygorczuk
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland.
| | - Joanna Osada
- Department of Hematologic Diagnostics, Medical University in Białystok, ul. Waszyngtona 15A, 15-269 Białystok, Poland
| | - Anna Moniuszko
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
| | - Renata Świerzbińska
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
| | - Maciej Kondrusik
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
| | - Joanna Zajkowska
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
| | - Justyna Dunaj
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
| | - Milena Dąbrowska
- Department of Hematologic Diagnostics, Medical University in Białystok, ul. Waszyngtona 15A, 15-269 Białystok, Poland
| | - Sławomir Pancewicz
- Department of Infectious Diseases and Neuroinfections, Medical University in Białystok, ul. Żurawia 14, 15-540 Białystok, Poland
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16
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Cheng SM, Cheng YJ, Wu LY, Kuo CH, Lee YS, Wu MC, Huang CY, Ting H, Lee SD. Activated apoptotic and anti-survival effects on rat hearts with fructose induced metabolic syndrome. Cell Biochem Funct 2013; 32:133-41. [PMID: 23657904 DOI: 10.1002/cbf.2982] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 04/08/2013] [Accepted: 04/09/2013] [Indexed: 11/10/2022]
Abstract
Consumption of fructose has been linked to the development of metabolic syndrome, whereas the cardiomyopathic changes and cardiac apoptosis of dietary high-fructose intake have not yet been clarified. The purpose of this study was to evaluate the effects of high-fructose on cardiac apoptotic and survival pathways. Thirty-two Wistar rats were randomly divided into a control group (CON), which received a standard chow diet, and a fructose-induced metabolic syndrome group (FIMS), which received a 50% fructose-content diet for 13 weeks. Histopathological analysis, TUNEL assays and Western blotting were performed on the excised hearts from both groups. The blood pressure, glucose, insulin, triglyceride and cholesterol levels were significantly increased in the FIMS group, compared with the CON group. The abnormal myocardial architecture, enlarged interstitial space and increased cardiac TUNEL-positive apoptotic cells were observed in the FIMS group. The TNF-α, TNF receptor 1, Fas ligand, Fas receptor, FADD, and activated caspase-3 and 8 protein levels (Fas pathway) and the Bax, Bak, Bax/Bcl-2, Bak/Bcl-xL, cytosolic cytochrome c, and activated caspase-3 and nine protein levels (mitochondria pathway) were increased in the FIMS group compared with those in the CON group. The IGFI, IGFI-R, p-PI3K, p-Akt, Bcl-2 and Bcl-xL protein levels (survival pathway) were all significantly decreased in the FIMS group compared with those in the CON group. High-fructose intake elevated blood pressure and glucose levels; moreover, high-fructose diet activated cardiac Fas-dependent and mitochondria-dependent apoptotic pathways and suppressed the survival pathway, which might provide one possible mechanism for developing heart failure in patients with metabolic syndrome.
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Affiliation(s)
- Shiu-Min Cheng
- Department of Psychology, Asia University, Taichung, Taiwan
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17
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Williams CD, McGill MR, Farhood A, Jaeschke H. Fas receptor-deficient lpr mice are protected against acetaminophen hepatotoxicity due to higher glutathione synthesis and enhanced detoxification of oxidant stress. Food Chem Toxicol 2013; 58:228-35. [PMID: 23628456 DOI: 10.1016/j.fct.2013.04.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 04/13/2013] [Accepted: 04/16/2013] [Indexed: 02/05/2023]
Abstract
UNLABELLED Acetaminophen (APAP) overdose is a classical model of hepatocellular necrosis; however, the involvement of the Fas receptor in the pathophysiology remains controversial. Fas receptor-deficient (lpr) and C57BL/6 mice were treated with APAP to compare the mechanisms of hepatotoxicity. Lpr mice were partially protected against APAP hepatotoxicity as indicated by reduced plasma ALT and GDH levels and liver necrosis. Hepatic Cyp2e1 protein, adduct formation and hepatic glutathione (GSH) depletion were similar, demonstrating equivalent reactive metabolite generation. There was no difference in cytokine formation or hepatic neutrophil recruitment. Interestingly, hepatic GSH recovered faster in lpr mice than in wild type animals resulting in enhanced detoxification of reactive oxygen species. Driving the increased GSH levels, mRNA induction and protein expression of glutamate-cysteine ligase (gclc) were higher in lpr mice. Inducible nitric oxide synthase (iNOS) mRNA and protein levels at 6h were significantly lower in lpr mice, which correlated with reduced nitrotyrosine staining. Heat shock protein 70 (Hsp70) mRNA levels were substantially higher in lpr mice after APAP. CONCLUSION Our data suggest that the faster recovery of hepatic GSH levels during oxidant stress and peroxynitrite formation, reduced iNOS expression and enhanced induction of Hsp70 attenuated the susceptibility to APAP-induced cell death in lpr mice.
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Affiliation(s)
- C David Williams
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Abstract
Chronic ethanol consumption is associated with serious and potentially fatal alcohol-related liver injuries such as hepatomegaly, alcoholic hepatitis and cirrhosis. Moreover, it has been documented that the clinical progression of alcohol-induced liver damage may be associated with an increase in hepatocellular death that involves apoptotic mechanisms. Although much information has been learned about the clinical manifestations associated with alcohol-related diseases, the search continues for a better understanding of the molecular and/or cellular mechanisms by which ethanol exerts its deleterious effects such as the induction of pro-apoptotic mechanisms and related cell damaging events. As part of the effort to enhance our understanding of those particular cellular pathways and mechanisms associated with ethanol toxicity, researchers over the years have utilized a variety of model systems. Recently, work has come forth demonstrating the utility of a hybrid cell line (WIF-B) as a cell culture model system for the study of alcohol-associated alterations in hepatocellular mechanisms. Success with such emerging model systems could aid in the development of potential therapeutic treatments for the prevention of alcohol-induced apoptotic cell death that may ultimately serve as a significant target in delaying the onset and/or progression of clinical symptoms of alcohol-mediated liver disease. This review article summarizes the current understanding of ethanol-mediated modifications in cell survival and thus the promotion of pro-apoptotic events with emphasis on analyses made in various experimental model systems, particularly the more recently characterized WIF-B cell system.
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Affiliation(s)
- Benita L McVicker
- Veterans Affairs Medical Center, Research Service (151), 4101 Woolworth Avenue, Omaha, NE 68105, USA.
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Souza HSP, Neves MS, Elia CCS, Tortori CJA, Dines I, Martinusso CA, Madi K, Andrade L, Castelo-Branco MTL. Distinct patterns of mucosal apoptosis in H pylori-associated gastric ulcer are associated with altered FasL and perforin cytotoxic pathways. World J Gastroenterol 2006; 12:6133-41. [PMID: 17036384 PMCID: PMC4088106 DOI: 10.3748/wjg.v12.i38.6133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the level of apoptosis in different mucosal compartments and the differential expression of Fas/Fas-ligand and perforin in H pylori-associated gastric ulcer.
METHODS: Antral specimens from patients with H pylori-related active gastric ulcer (GU), H pylori-related gastritis, and non-infected controls were analysed for densities and distribution of apoptotic cells determined by the TdT-mediated dUDP-biotin nick-end-labelling method. GU patients were submitted to eradication therapy with follow-up biopsy after 60 d. Fas, FasL, and perforin-expressing cells were assessed by immunoperoxidase, and with anti-CD3, anti-CD20 and anti-CD68 by double immunofluorescence and confocal microscopy. Quantitative analysis was performed using a computer-assisted image analyser.
RESULTS: H pylori-infected antrum showed greater surface epithelial apoptosis which decreased after eradication therapy. In the lamina propria, higher rates of mononuclear cell apoptosis were observed in H pylori-gastritis. Co-expression of Fas with T-cell and macrophage markers was reduced in GU. FasL- and perforin-expressing cells were increased in H pylori-infection and correlated with epithelial apoptosis. Perforin-expressing cells were also increased in GU compared with H pylori-gastritis.
CONCLUSION: Epithelial apoptosis is increased in H pylori-infection and correlates to FasL- and perforin-expression by T cells. Expression of perforin is correlated with the tissue damage, and may represent the enhancement of a distinct cytotoxic pathway in GU. Increased expression of FasL not paralleled by Fas on T-cells and macrophages may indicate a reduced susceptibility to the Fas/FasL-mediated apoptosis of lymphoid cells in H pylori-infection.
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Affiliation(s)
- Heitor-S-P Souza
- Departamento de Clínica Médica, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, 21941-590, Brazil.
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