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Kumar S, Dikshit M. Nitric Oxide: Regulation and Function in Neutrophil Immune Responses. Antioxid Redox Signal 2024; 40:998-1024. [PMID: 38251644 DOI: 10.1089/ars.2022.0220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Affiliation(s)
- Sachin Kumar
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Postal Staff College Area, Ghaziabad, India
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
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2
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Emerald BS, Mohsin S, D’Souza C, John A, El-Hasasna H, Ojha S, Raza H, al-Ramadi B, Adeghate E. Diabetes Mellitus Alters the Immuno-Expression of Neuronal Nitric Oxide Synthase in the Rat Pancreas. Int J Mol Sci 2022; 23:ijms23094974. [PMID: 35563364 PMCID: PMC9105024 DOI: 10.3390/ijms23094974] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 02/04/2023] Open
Abstract
Nitric oxide is generated from nitric oxide synthase following hyperglycemia-induced oxidative stress during the course of diabetes mellitus (DM). We examined the temporal immuno-expression of neuronal nitric oxide synthase (nNOS) in the pancreas of diabetic and non-diabetic rats using immunohistochemical, immunofluorescence and western blot techniques 12 h, 24 h, 1 week, 2 weeks, 1, 8 and 15 months after induction of DM. nNOS co-localized with pancreatic beta cells but disappears 12 h after the onset of DM. In contrast, the nNOS content of pancreatic nerves increased significantly (p < 0.001) 24 h after the induction of DM, and decreased sharply thereafter. However, nNOS-positive ganglion cells were observed even 15 months post-diabetes. ROS increased by more than 100% two months after the onset of DM compared to non-diabetic control but was significantly (p < 0.000001) reduced at 9 months after the induction of DM. The pancreatic content of GSH increased significantly (p < 0.02) after 9 months of DM. Although, TBARS content was significantly (p < 0.009; p < 0.002) lower in aged (9 months) non-diabetic and DM rats, TBARS rate was markedly (p < 0.02) higher 9 months after the induction of DM when compared to younger age group. In conclusion, nNOS is present in pancreatic beta cell, but disappears 12 h after the onset of diabetes. In contrast, the tissue level of nNOS of pancreatic nerves increased in the first week of diabetes, followed by a sharp reduction. nNOS may play important roles in the metabolism of pancreatic beta cell.
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Affiliation(s)
- Bright Starling Emerald
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Sahar Mohsin
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Crystal D’Souza
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
| | - Annie John
- Departments of Biochemistry, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (A.J.); (H.R.)
| | - Hussain El-Hasasna
- Departments of Medical Microbiology and Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (H.E.-H.); (B.a.-R.)
| | - Shreesh Ojha
- Departments of Pharmacology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates;
| | - Haider Raza
- Departments of Biochemistry, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (A.J.); (H.R.)
| | - Basel al-Ramadi
- Departments of Medical Microbiology and Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (H.E.-H.); (B.a.-R.)
- Zayed Centre for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
| | - Ernest Adeghate
- Departments of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates; (B.S.E.); (S.M.); (C.D.)
- Zayed Centre for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
- Correspondence:
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Yan T, Kong Y, Fan W, Kang J, Chen H, He H, Huang F. Expression of nitric oxide synthases in rat odontoblasts and the role of nitric oxide in odontoblastic differentiation of rat dental papilla cells. Dev Growth Differ 2021; 63:354-371. [PMID: 34411285 DOI: 10.1111/dgd.12745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 07/23/2021] [Accepted: 08/08/2021] [Indexed: 12/01/2022]
Abstract
As precursor cells of odontoblasts, dental papilla cells (DPCs) form the dentin-pulp complex during tooth development. Nitric oxide (NO) regulates the functions of multiple cells and organ tissues, including stem cell differentiation and bone formation. In this paper, we explored the involvement of NO in odontoblastic differentiation. We verified the expression of NO synthase (NOS) in rat odontoblasts by nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) staining and immunohistochemistry in vivo. The expression of all three NOS isoforms in rat DPCs was confirmed by quantitative reverse-transcription polymerase chain reaction (qRT-PCR), immunofluorescence, and western blotting in vitro. The expression of neuronal NOS and endothelial NOS was upregulated during the odontoblastic differentiation of DPCs. Inhibition of NOS function by NOS inhibitor l-NG -monomethyl arginine (L-NMMA) resulted in reduced formation of mineralized nodules and expression of dentin sialophosphoprotein (DSPP) and dentin matrix protein (DMP1) during DPC differentiation. The NO donor S-nitroso-N-acetylpenicillamine (SNAP, 0.1, 1, 10, and 100 μM) promoted the viability of DPCs. Extracellular matrix mineralization and odontogenic markers expression were elevated by SNAP at low concentrations (0.1, 1, and 10 μM) and suppressed at high concentration (100 μM). Blocking the generation of cyclic guanosine monophosphate (cGMP) with 1H-(1,2,4)oxadiazolo-(4,3-a)quinoxalin-1-one (ODQ) abolished the positive influence of SNAP on the odontoblastic differentiation of DPCs. These findings demonstrate that NO regulates the odontoblastic differentiation of DPCs, thereby influencing dentin formation and tooth development.
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Affiliation(s)
- Tong Yan
- Department of Pediatric Dentistry, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yu Kong
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Wenguo Fan
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jun Kang
- Department of Pediatric Dentistry, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Haoling Chen
- Department of Pediatric Dentistry, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Hongwen He
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Fang Huang
- Department of Pediatric Dentistry, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
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4
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Intestinal eosinophils: multifaceted roles in tissue homeostasis and disease. Semin Immunopathol 2021; 43:307-317. [PMID: 33772336 DOI: 10.1007/s00281-021-00851-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 03/02/2021] [Indexed: 12/11/2022]
Abstract
Intestinal eosinophils are largely considered to be one of the central immune effector cells during helminth infection and disorders such as eosinophilic oesophagitis and food allergies. Given the abundance of these cells present in the gastrointestinal tract at homeostasis, emerging studies now reveal novel roles for eosinophils in the development and regulation of immunity, and during tissue repair. In addition, the identification of distinct eosinophil subsets indicates that we must consider the heterogeneity of these cells and how they differentially participate in mucosal immunity at steady state and during disease. Here, we summarise the literature on intestinal eosinophils, and how they contribute to mucosal homeostasis through immune regulation and interactions with the microbiome. We then explore the divergent roles of eosinophils in the context of eosinophilic gastrointestinal disorders and during helminth infection, whereby we discuss key observations and differences that have emerged from animal models and human studies. Lastly, we consider the possible interactions of eosinophils with the enteric nervous system, and how this represents an exciting area for future research which may inform future therapeutic targets.
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Saini R, Azam Z, Sapra L, Srivastava RK. Neuronal Nitric Oxide Synthase (nNOS) in Neutrophils: An Insight. Rev Physiol Biochem Pharmacol 2021; 180:49-83. [PMID: 34115206 DOI: 10.1007/112_2021_61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
NO (nitric oxide) is an important regulator of neutrophil functions and has a key role in diverse pathophysiological conditions. NO production by nitric oxide synthases (NOS) is under tight control at transcriptional, translational, and post-translational levels including interactions with heterologous proteins owing to its potent chemical reactivity and high diffusibility; this limits toxicity to other cellular components and promotes signaling specificity. The protein-protein interactions govern the activity and spatial distribution of NOS isoform to regulatory proteins and to their intended targets. In comparison with the vast literature available for endothelial, macrophages, and neuronal cells, demonstrating neuronal NOS (nNOS) interaction with other proteins through the PDZ domain, neutrophil nNOS, however, remains unexplored. Neutrophil's key role in both physiological and pathological conditions necessitates the need for further studies in delineating the NOS mediated NO modulations in signaling pathways operational in them. nNOS has been linked to depression, schizophrenia, and Parkinson's disease, suggesting the importance of exploring nNOS/NO-mediated neutrophil physiology in relation to such neuronal disorders. The review thus presents the scenario of neutrophil nNOS from the genetics to the functional level, including protein-protein interactions governing its intracellular sequestration in diverse cell types, besides speculating possible regulation in neutrophils and also addressing their clinical implications.
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Affiliation(s)
- Rashmi Saini
- Department of Zoology, Gargi College, University of Delhi, Delhi, India.
| | - Zaffar Azam
- Department of Zoology, Dr. Harisingh Gour Central University, Sagar, MP, India
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Leena Sapra
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Rupesh K Srivastava
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
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Sokolovska J, Dekante A, Baumane L, Pahirko L, Valeinis J, Dislere K, Rovite V, Pirags V, Sjakste N. Nitric oxide metabolism is impaired by type 1 diabetes and diabetic nephropathy. Biomed Rep 2020; 12:251-258. [PMID: 32257188 DOI: 10.3892/br.2020.1288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/16/2019] [Indexed: 12/14/2022] Open
Abstract
Diabetes leads to reduced nitric oxide bioavailability, resulting in endothelial dysfunction. However, overproduction of nitric oxide due to hyperglycaemia is associated with oxidative stress and tissue damage. The objective of this study was to characterise nitric oxide production (NO) and added nitrite and nitrate (NO2 -+NO3 -) concentration in the blood and urine of patients with and without diabetic nephropathy. A total of 268 patients with type 1 diabetes and 69 healthy subjects were included. Diabetic nephropathy was defined as macroalbuminuria and/or estimated glomerular filtration rate below 60 ml/min/1.73 cm2. NO2 -+NO3 - concentration was measured by Griess reaction. Production of NO was detected by electron paramagnetic resonance spectroscopy. Blood NO was demonstrated to be higher (P<0.001) and serum NO2 -+NO3 - was lower (P=0.003) in patients with type 1 diabetes and no nephropathy vs. healthy subjects. However, serum NO2 -+NO3 - concentration in patients with diabetes and nephropathy did not differ from the levels observed in healthy controls. Urine excretion of NO2 -+NO3 - was significantly decreased in patients with nephropathy, compared with patients without diabetic kidney disease (P=0.006) and healthy subjects (P=0.010). A significant positive correlation was observed between urine NO2 -+NO3 - and estimated glomerular filtration rate in patients with type 1 diabetes (P=0.002) and healthy subjects (P=0.008). Estimated glomerular filtration rate, albuminuria and diabetic nephropathy status were significant predictors of the whole blood NO and NO2 -+NO3 - in serum and urine in patients with type 1 diabetes, as identified by linear regression models. The present study concludes that NO metabolism is impaired by type 1 diabetes and diabetic nephropathy.
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Affiliation(s)
- Jelizaveta Sokolovska
- Laboratory for Personalized Medicine, Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia
| | - Alise Dekante
- Laboratory for Personalized Medicine, Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia.,Internal Medicine Clinic, Pauls Stradins Clinical University Hospital, LV-1002 Riga, Latvia
| | - Larisa Baumane
- Biochemistry Team, Latvian Institute of Organic Synthesis, LV-1006 Riga, Latvia
| | - Leonora Pahirko
- Laboratory for Statistics Research and Data Analysis, Faculty of Physics, Mathematics and Optometry, University of Latvia, LV-1004 Riga, Latvia
| | - Janis Valeinis
- Laboratory for Statistics Research and Data Analysis, Faculty of Physics, Mathematics and Optometry, University of Latvia, LV-1004 Riga, Latvia
| | - Kristine Dislere
- Laboratory of Genomics and Bioinformatics, Institute of Biology, University of Latvia, LV-1004 Riga, Latvia
| | - Vita Rovite
- Database of Latvian Population, Latvian Biomedical Research and Study Centre, LV-1067 Riga, Latvia
| | - Valdis Pirags
- Laboratory for Personalized Medicine, Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia.,Internal Medicine Clinic, Pauls Stradins Clinical University Hospital, LV-1002 Riga, Latvia.,Database of Latvian Population, Latvian Biomedical Research and Study Centre, LV-1067 Riga, Latvia
| | - Nikolajs Sjakste
- Department of Medical Biochemistry, Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia
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7
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Saini R, Singh S. Inducible nitric oxide synthase: An asset to neutrophils. J Leukoc Biol 2018; 105:49-61. [DOI: 10.1002/jlb.4ru0418-161r] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/25/2018] [Accepted: 08/26/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Rashmi Saini
- Department of ZoologyGargi CollegeUniversity of Delhi Delhi 11049 India
| | - Sarika Singh
- Toxicology & Experimental MedicineCSIR‐Central Drug Research Institute Lucknow 226031 India
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8
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Melo RCN, Weller PF. Contemporary understanding of the secretory granules in human eosinophils. J Leukoc Biol 2018; 104:85-93. [PMID: 29749658 DOI: 10.1002/jlb.3mr1217-476r] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 12/12/2022] Open
Abstract
Eosinophil secretory (specific) granules have a unique morphology and are both a morphologic hallmark of eosinophils and fundamental to eosinophil-mediated responses. Eosinophil mediators with multiple functional activities are presynthesized and stored within these granules, poised for very rapid, stimulus-induced secretion. The structural organization and changes of eosinophil specific granules are revealing in demonstrating the complex and diverse secretory activities of this cell. Here, we review our current knowledge on the architecture, composition, and function of eosinophil specific granules as highly elaborated organelles able to produce vesiculotubular carriers and to interplay with the intracellular vesicular trafficking. We reconsider prior identifications of eosinophil cytoplasmic granules, including "primary," "secondary," "microgranules," and "small granules"; and consonant with advances, we provide a contemporary recognition that human eosinophils contain a single population of specific granules and their developmental precursors and derived secretory vesicles.
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Affiliation(s)
- Rossana C N Melo
- Laboratory of Cellular Biology, Department of Biology, ICB, Federal University of Juiz de Fora, UFJF, Rua José Lourenço Kelmer, Juiz de Fora, Brazil.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Peter F Weller
- Laboratory of Cellular Biology, Department of Biology, ICB, Federal University of Juiz de Fora, UFJF, Rua José Lourenço Kelmer, Juiz de Fora, Brazil
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9
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Baig MS, Zaichick SV, Mao M, de Abreu AL, Bakhshi FR, Hart PC, Saqib U, Deng J, Chatterjee S, Block ML, Vogel SM, Malik AB, Consolaro MEL, Christman JW, Minshall RD, Gantner BN, Bonini MG. NOS1-derived nitric oxide promotes NF-κB transcriptional activity through inhibition of suppressor of cytokine signaling-1. ACTA ACUST UNITED AC 2015; 212:1725-38. [PMID: 26324446 PMCID: PMC4577833 DOI: 10.1084/jem.20140654] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 08/06/2015] [Indexed: 11/04/2022]
Abstract
The NF-κB pathway is central to the regulation of inflammation. Here, we demonstrate that the low-output nitric oxide (NO) synthase 1 (NOS1 or nNOS) plays a critical role in the inflammatory response by promoting the activity of NF-κB. Specifically, NOS1-derived NO production in macrophages leads to proteolysis of suppressor of cytokine signaling 1 (SOCS1), alleviating its repression of NF-κB transcriptional activity. As a result, NOS1(-/-) mice demonstrate reduced cytokine production, lung injury, and mortality when subjected to two different models of sepsis. Isolated NOS1(-/-) macrophages demonstrate similar defects in proinflammatory transcription on challenge with Gram-negative bacterial LPS. Consistently, we found that activated NOS1(-/-) macrophages contain increased SOCS1 protein and decreased levels of p65 protein compared with wild-type cells. NOS1-dependent S-nitrosation of SOCS1 impairs its binding to p65 and targets SOCS1 for proteolysis. Treatment of NOS1(-/-) cells with exogenous NO rescues both SOCS1 degradation and stabilization of p65 protein. Point mutation analysis demonstrated that both Cys147 and Cys179 on SOCS1 are required for its NO-dependent degradation. These findings demonstrate a fundamental role for NOS1-derived NO in regulating TLR4-mediated inflammatory gene transcription, as well as the intensity and duration of the resulting host immune response.
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Affiliation(s)
- Mirza Saqib Baig
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Sofia V Zaichick
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Mao Mao
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Andre L de Abreu
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Programa de Biociencias Aplicadas a Farmacia (PBF), Universidade Estadual de Maringa, Maringa 87020-900, Brazil
| | - Farnaz R Bakhshi
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Peter C Hart
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Anatomy and Cell Biology, Stark Neurosciences Research Institute, Indiana University, Indianapolis, IN 46202
| | - Uzma Saqib
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Jing Deng
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Saurabh Chatterjee
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Michelle L Block
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Stephen M Vogel
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Asrar B Malik
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Marcia E L Consolaro
- Programa de Biociencias Aplicadas a Farmacia (PBF), Universidade Estadual de Maringa, Maringa 87020-900, Brazil
| | - John W Christman
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Richard D Minshall
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208
| | - Benjamin N Gantner
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607
| | - Marcelo G Bonini
- Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Medicine, Department of Pharmacology, Department of Anesthesiology, and Department of Pathology, University of Illinois College of Medicine, Chicago, IL 60607 Department of Anatomy and Cell Biology, Stark Neurosciences Research Institute, Indiana University, Indianapolis, IN 46202
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Buldreghini E, Hamada A, Macrì ML, Amoroso S, Boscaro M, Lenzi A, Agarwal A, Balercia G. Human leucocytes in asthenozoospermic patients: endothelial nitric oxide synthase expression. Andrologia 2014; 46:1176-82. [DOI: 10.1111/and.12211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2013] [Indexed: 01/13/2023] Open
Affiliation(s)
- E. Buldreghini
- Andrology Unit; Endocrinology; Department of Clinical and Molecular Sciences; Umberto I Hospital; School of Medicine; Polytechnic University of Marche; Ancona Italy
| | - A. Hamada
- Center for Reproductive Medicine; Glickman Urological and Kidney Institute; Ob-Gyn and Women's Health Institute; Cleveland Clinic; OH USA
| | - M. L. Macrì
- Unit of Pharmacology; Department of Neuroscience; School of Medicine; Polytechnic University of Marche; Ancona Italy
| | - S. Amoroso
- Unit of Pharmacology; Department of Neuroscience; School of Medicine; Polytechnic University of Marche; Ancona Italy
| | - M. Boscaro
- Andrology Unit; Endocrinology; Department of Clinical and Molecular Sciences; Umberto I Hospital; School of Medicine; Polytechnic University of Marche; Ancona Italy
| | - A. Lenzi
- Andrology; Pathophysiology of Reproduction and Endocrine Diagnosis Unit; Polyclinic Umberto I; University of Rome ‘La Sapienza’; Rome Italy
| | - A. Agarwal
- Center for Reproductive Medicine; Glickman Urological and Kidney Institute; Ob-Gyn and Women's Health Institute; Cleveland Clinic; OH USA
| | - G. Balercia
- Andrology Unit; Endocrinology; Department of Clinical and Molecular Sciences; Umberto I Hospital; School of Medicine; Polytechnic University of Marche; Ancona Italy
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11
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Mitra A, Basak T, Datta K, Naskar S, Sengupta S, Sarkar S. Role of α-crystallin B as a regulatory switch in modulating cardiomyocyte apoptosis by mitochondria or endoplasmic reticulum during cardiac hypertrophy and myocardial infarction. Cell Death Dis 2013; 4:e582. [PMID: 23559016 PMCID: PMC3641337 DOI: 10.1038/cddis.2013.114] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cardiac hypertrophy and myocardial infarction (MI) are two major causes of heart failure with different etiologies. However, the molecular mechanisms associated with these two diseases are not yet fully understood. So, this study was designed to decipher the process of cardiomyocyte apoptosis during cardiac hypertrophy and MI in vivo. Our study revealed that mitochondrial outer membrane channel protein voltage-dependent anion channel-1 (VDAC1) was upregulated exclusively during cardiac hypertrophy, whereas 78 kDa glucose-regulated protein (GRP78) was exclusively upregulated during MI, which is an important upstream regulator of the endoplasmic reticulum (ER) stress pathway. Further downstream analysis revealed that mitochondrial pathway of apoptosis is instrumental in case of hypertrophy, whereas ER stress-induced apoptosis is predominant during MI, which was confirmed by treatment with either siRNA against VDAC1 or ER stress inhibitor tauroursodeoxycholic acid (TUDCA). Very interestingly, our data also showed that the expression and interaction of small heat-shock protein α-crystallin B (CRYAB) with VDAC1 was much more pronounced during MI compared with either hypertrophy or control. The study demonstrated for the first time that two different organelles—mitochondria and ER have predominant roles in mediating cardiomyocyte death signaling during hypertrophy and MI, respectively, and activation of CRYAB acts as a molecular switch in bypassing mitochondrial pathway of apoptosis during MI.
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Affiliation(s)
- A Mitra
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700 019, India
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12
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Chakrabarti S, Chan CK, Jiang Y, Davidge ST. Neuronal nitric oxide synthase regulates endothelial inflammation. J Leukoc Biol 2012; 91:947-56. [DOI: 10.1189/jlb.1011513] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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13
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Saluja R, Jyoti A, Chatterjee M, Habib S, Verma A, Mitra K, Barthwal MK, Bajpai VK, Dikshit M. Molecular and biochemical characterization of nitric oxide synthase isoforms and their intracellular distribution in human peripheral blood mononuclear cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2011; 1813:1700-7. [PMID: 21722677 DOI: 10.1016/j.bbamcr.2011.06.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 06/10/2011] [Accepted: 06/16/2011] [Indexed: 10/18/2022]
Abstract
Nitric oxide synthase (NOS) expression and catalytic status in human peripheral blood mononuclear cells (PBMCs) is debatable, while its sub-cellular distribution remains unascertained. The present study characterizes NOS transcripts by real time PCR, NOS protein by immunoprecipitation (IP)/Western blot (WB), nitric oxide (NO) generation by DAF-2DA and NOS sub-cellular distribution by immunogold electron microscopy in resting PBMCs, monocytes and lymphocytes obtained from healthy donors. We observed constitutive expression of full length NOS isoforms (nNOS, iNOS and eNOS) in PBMCs: with the highest expression of iNOS in comparison to nNOS and eNOS. Isolated monocytes expressed more eNOS transcript and protein as compared to nNOS and iNOS. Lymphocytes however had more iNOS transcripts and protein than nNOS and eNOS. NOS was catalytically active in PBMCs, monocytes as well as in lymphocytes as evident by NO generation in the presence of substrate and cofactors, which was significantly reduced in the presence of NOS inhibitor. Immunogold electron microscopy and morphometric analysis revealed the distinct pattern of NOS distribution in monocytes and lymphocytes and also exhibited differences in the nuclear-cytoplasmic ratio. nNOS localization was much more in the cytosol than in the nucleus among both monocytes and lymphocytes. Interestingly, iNOS distribution was comparable in both cytosol and nucleus among monocytes, but in lymphocytes iNOS was predominantly localized to the cytosol. The present study exhibits constitutive presence of all the NOS isoforms in PBMCs and reports the distinct pattern of NOS distribution among monocytes and lymphocytes.
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