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Sinha S, Dhankani P, Nahiyera M, Singh KB, Singh D, Mugale MN, Sharma S, Kumaravelu J, Dikshit M, Kumar S. iNOS regulates hematopoietic stem and progenitor cells via mitochondrial signaling and is critical for bone marrow regeneration. Free Radic Biol Med 2024; 219:184-194. [PMID: 38636716 DOI: 10.1016/j.freeradbiomed.2024.04.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/24/2024] [Accepted: 04/13/2024] [Indexed: 04/20/2024]
Abstract
Hematopoietic stem cells (HSCs) replenish blood cells under steady state and on demand, that exhibit therapeutic potential for Bone marrow failures and leukemia. Redox signaling plays key role in immune cells and hematopoiesis. However, the role of reactive nitrogen species in hematopoiesis remains unclear and requires further investigation. We investigated the significance of inducible nitric oxide synthase/nitric oxide (iNOS/NO) signaling in hematopoietic stem and progenitor cells (HSPCs) and hematopoiesis under steady-state and stress conditions. HSCs contain low levels of NO and iNOS under normal conditions, but these increase upon bone marrow stress. iNOS-deficient mice showed subtle changes in peripheral blood cells but significant alterations in HSPCs, including increased HSCs and multipotent progenitors. Surprisingly, iNOS-deficient mice displayed heightened susceptibility and delayed recovery of blood progeny following 5-Fluorouracil (5-FU) induced hematopoietic stress. Loss of quiescence and increased mitochondrial stress, indicated by elevated MitoSOX and MMPhi HSCs, were observed in iNOS-deficient mice. Furthermore, pharmacological approaches to mitigate mitochondrial stress rescued 5-FU-induced HSC death. Conversely, iNOS-NO signaling was required for demand-driven mitochondrial activity and proliferation during hematopoietic recovery, as iNOS-deficient mice and NO signaling inhibitors exhibit reduced mitochondrial activity. In conclusion, our study challenges the conventional view of iNOS-derived NO as a cytotoxic molecule and highlights its intriguing role in HSPCs. Together, our findings provide insights into the crucial role of the iNOS-NO-mitochondrial axis in regulating HSPCs and hematopoiesis.
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Affiliation(s)
- Supriya Sinha
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Priyanka Dhankani
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Milind Nahiyera
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Krishna Bhan Singh
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Divya Singh
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Madhav Nilakanth Mugale
- Toxicology and Experimental Medicine Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Sharad Sharma
- Toxicology and Experimental Medicine Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Jagavelu Kumaravelu
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sachin Kumar
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India.
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2
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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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3
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Chung AW, Anand K, Anselme AC, Chan AA, Gupta N, Venta LA, Schwartz MR, Qian W, Xu Y, Zhang L, Kuhn J, Patel T, Rodriguez AA, Belcheva A, Darcourt J, Ensor J, Bernicker E, Pan PY, Chen SH, Lee DJ, Niravath PA, Chang JC. A phase 1/2 clinical trial of the nitric oxide synthase inhibitor L-NMMA and taxane for treating chemoresistant triple-negative breast cancer. Sci Transl Med 2021; 13:eabj5070. [PMID: 34910551 DOI: 10.1126/scitranslmed.abj5070] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Andrew W Chung
- Texas A&M University Health Science Center, Bryan, TX 77807, USA.,Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Kartik Anand
- Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Ann C Anselme
- Texas A&M University Health Science Center, Bryan, TX 77807, USA.,Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | | | - Nakul Gupta
- Department of Radiology, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Luz A Venta
- Department of Radiology, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Mary R Schwartz
- Houston Methodist Department of Pathology and Genomic Medicine, Houston, TX 77030, USA
| | - Wei Qian
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Yitian Xu
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Licheng Zhang
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - John Kuhn
- University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Tejal Patel
- Houston Methodist Cancer Center, Houston, TX 77030, USA.,Department of General Oncology MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Anna Belcheva
- Houston Methodist Cancer Center, Houston, TX 77030, USA
| | | | - Joe Ensor
- Houston Methodist Cancer Center, Houston, TX 77030, USA
| | | | - Ping-Ying Pan
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Shu Hsia Chen
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
| | - Delphine J Lee
- Lundquist Institute, Torrance, CA 90502, USA.,David Geffen School of Medicine at Los Angeles, CA 90095, USA
| | | | - Jenny C Chang
- Houston Methodist Research Institute, Houston, TX 77030, USA.,Houston Methodist Cancer Center, Houston, TX 77030, USA
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4
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Pathak P, Shukla P, Kanshana JS, Jagavelu K, Sangwan NS, Dwivedi AK, Dikshit M. Standardized root extract of Withania somnifera and Withanolide A exert moderate vasorelaxant effect in the rat aortic rings by enhancing nitric oxide generation. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114296. [PMID: 34090907 DOI: 10.1016/j.jep.2021.114296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 04/07/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE Withania somnifera (L.) Dunal, commonly known as Ashwagandha, belongs to the family Solanaceae. In Ayurveda, Ashwagandha has been defined as one of the most important herb and is considered to be the best adaptogen. It is also an excellent rejuvenator, a general health tonic and cure for various disorders such as cerebrovascular, insomnia, asthma, ulcers, etc. Steroidal lactones (Withanolides: Withanolide A, Withaferin A, Withanolide D, Withanone, etc) isolated from this plant, possess promising medicinal properties such as anti-inflammatory, immune-stimulatory etc. Standardized root extract of the plant NMITLI-118R (NM) was prepared at CSIR-CIMAP, and was investigated for various biological activities at CSIR-CDRI. Among the notable medicinal properties, NM exhibited excellent neuroprotective activity in the middle cerebral artery occlusion (MCAO) rat model. AIM OF THE STUDY Endothelial dysfunction is the primary event in the cerebrovascular or cardiovascular disorders, present study was thus undertaken to evaluate vasoprotective potential of NM and its biomarker compound Withanolide A (WA) using rat aortic rings and EA.hy926 endothelial cells. MATERIAL AND METHODS Transverse aortic rings of 10 weeks old Wistar rats were used to evaluate effect of NM and WA on the vasoreactivity. While, mechanism of NM and WA mediated vasorelaxant was investigated in Ea.hy926 cell line by measuring NO generation, nitrite content, Serine 1177 phosphorylation of eNOS, reduced/oxidized biopterin levels and expression of endothelial nitric oxide synthase (eNOS) mRNA and protein. RESULTS Fingerprinting of NM using HPLC identified presence of WA in the extract. NM as well as WA exerted moderate vasorelaxant effect in the endothelium intact rat aortic rings which was lesser than acetylcholine (ACh). NM and WA augmented ACh induced relaxation in the rat aortic rings. NM and WA dependent vasorelaxation was blocked by N-nitro-L-arginine methyl ester (L-NAME) or 1H-[1,2,4] oxadiazolo [4,3,-a]quinoxalin-1-one (ODQ), indicating role of NO/cGMP. Further Ea.hy926 cells treated with NM and WA showed accumulation of nitrite content, enhanced NO levels, eNOS expression and eNOS phosphorylation (Serine 1177). CONCLUSION Altogether NM and WA dependent improvement in the NO availability seems to be mediated by the enhanced eNOS phosphorylation. WA, seems to be one of the active constituent of NM, and presence of other vasoactive substances cannot be ruled out. The data obtained imply that the vasorelaxant property of NM is beneficial for its neuroprotective potential.
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Affiliation(s)
- Priya Pathak
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Academy of Scientific and Innovative Research, New Delhi, 110001, India.
| | - Prachi Shukla
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Jitendra S Kanshana
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Kumaravelu Jagavelu
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Neelam S Sangwan
- CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India.
| | - Anil K Dwivedi
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India; Tanslational Health Science and Technology, Faridabad, 121001, India.
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5
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Singh AK, Awasthi D, Dubey M, Nagarkoti S, Chandra T, Barthwal MK, Tripathi AK, Dikshit M. Expression of inducible NOS is indispensable for the antiproliferative and proapoptotic effect of imatinib in BCR-ABL positive cells. J Leukoc Biol 2021; 110:853-866. [PMID: 33527482 DOI: 10.1002/jlb.1a0820-514r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/14/2020] [Accepted: 01/13/2021] [Indexed: 01/07/2023] Open
Abstract
Chronic myeloid leukemia (CML) is characterized by constitutive BCR-ABL kinase activity, an aggressive proliferation of immature cells, and reduced differentiation. Targeting tyrosine kinase activity of BCR-ABL with imatinib is an effective therapy for the newly diagnosed CML patients; however, 20%-30% of the patients initially treated with imatinib eventually experience treatment failure. Therefore, early identification of these patients is of high clinical relevance. In the present study, we by undertaking a direct comparison of inducible NOS (iNOS) status in neutrophils from healthy volunteers, newly diagnosed, imatinib responder, and resistant CML patients as well as by conducting in vitro studies in K562 cells demonstrated that inhibition of BCR-ABL by imatinib or siRNA significantly enhanced NO generation and iNOS expression. Indeed, patients exhibiting treatment failure or imatinib resistance were less likely to induce NO generation/iNOS expression. Our findings further demonstrated that imatinib mediated antiproliferative and proapoptotic effect in BCR-ABL+ cells associated with enhanced iNOS expression, and it was significantly prevented in the presence of L-NAME, 1400W, or iNOS siRNA. Overexpression of iNOS in K562 cells expectedly enhanced imatinib sensitivity on cytostasis and apoptosis, even at lower concentration (0.1 μM) of imatinib. Mechanistically, imatinib or BCR-ABL siRNA following deglutathionylation of NF-κB, enhanced its binding to iNOS promoter and induced iNOS transcription. Deglutathionylation of procaspase-3 however associated with increased caspase-3 activity and cell apoptosis. Taken together, results obtained suggest that monitoring NO/iNOS level could be useful to identify patients likely to be responsive or resistant to imatinib and can be used to personalized alternative therapy.
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Affiliation(s)
| | - Deepika Awasthi
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Megha Dubey
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sheela Nagarkoti
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Tulika Chandra
- Department of Transfusion Medicine, King George's Medical University, Lucknow, India
| | | | - Anil Kumar Tripathi
- Department of Clinical Hematology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India
| | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
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6
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Kuhikar R, Khan N, Khare SP, Fulzele A, Melinkeri S, Kale V, Limaye L. Neutrophils generated in vitro from hematopoietic stem cells isolated from apheresis samples and umbilical cord blood form neutrophil extracellular traps. Stem Cell Res 2020; 50:102150. [PMID: 33450673 DOI: 10.1016/j.scr.2020.102150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/05/2020] [Accepted: 12/27/2020] [Indexed: 11/22/2022] Open
Abstract
Neutrophils release neutrophil extracellular traps (NET) comprising of decondensed chromatin that immobilizes and kills pathogens. In vitro generation of neutrophils on a large scale from hematopoietic stem cells (HSCs) may be a useful strategy for treating neutropenic patients in future, though it is not in clinical practice yet. Microbial infections lead to major cause of morbidity and mortality in these patients. Despite the importance of NET in preventing infection, efficacy of in vitro-generated neutrophils from HSCs to form NET is not tested. We show that functional neutrophils could be generated in vitro from HSCs/MNCs isolated from umbilical cord blood (UCB) and apheresis-derived peripheral blood (APBL). Neutrophils generated from UCB showed properties comparable to those isolated from peripheral blood. We also show that isolation of HSCs is not absolutely essential for in vitro neutrophil generation. Further, we show that neutrophils generated from HSCs express PADI4 enzyme and their NET-forming ability is comparable to peripheral blood neutrophils. Taken together, our data show that fully functional neutrophils can be generated in vitro from HSCs. NET-forming ability of in vitro-generated neutrophils is an important parameter to determine their functionality and thus, should be studied along with other standard functional assays.
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Affiliation(s)
- Rutuja Kuhikar
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Nikhat Khan
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Satyajeet P Khare
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune 412115, India
| | - Amit Fulzele
- Division of Biological Sciences, University of California at San Diego, La Jolla, CA 92093, USA
| | - Sameer Melinkeri
- Blood and Marrow Transplant Unit, Deenanath Mangeshkar Hospital, Erandawne, Pune 411004, India
| | - Vaijayanti Kale
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India; Symbiosis Centre for Stem Cell Research, Symbiosis School of Biological Sciences, Symbiosis Knowledge Village, Lavale, Pune 412115, India
| | - Lalita Limaye
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India.
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7
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Systemic Insulin Resistance and Metabolic Perturbations in Chow Fed Inducible Nitric Oxide Synthase Knockout Male Mice: Partial Reversal by Nitrite Supplementation. Antioxidants (Basel) 2020; 9:antiox9080736. [PMID: 32806494 PMCID: PMC7465804 DOI: 10.3390/antiox9080736] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023] Open
Abstract
iNOS, an important mediator of inflammation, has emerged as an important metabolic regulator. There are conflicting observations on the incidence of insulin resistance (IR) due to hyperglycemia/dyslipidemia in iNOS−/− mice. There are reports that high fat diet (HFD) fed mice exhibited no change, protection, or enhanced susceptibility to IR. Similar observations were also reported for low fat diet (LFD) fed KO mice. In the present study chow fed iNOS−/− mice were examined for the incidence of IR, and metabolic perturbations, and also for the effect of sodium nitrite supplementation (50 mg/L). In IR-iNOS−/− mice, we observed significantly higher body weight, BMI, adiposity, blood glucose, HOMA-IR, serum/tissue lipids, glucose intolerance, enhanced gluconeogenesis, and disrupted insulin signaling. Expression of genes involved in hepatic and adipose tissue lipid uptake, synthesis, oxidation, and gluconeogenesis was upregulated with concomitant downregulation of genes for hepatic lipid excretion. Nitrite supplementation restored NO levels, significantly improved systemic IR, glucose tolerance, and also reduced lipid accumulation by rescuing hepatic insulin sensitivity, glucose, and lipid homeostasis. Obesity, gluconeogenesis, and adipose tissue insulin signaling were only partially reversed in nitrite supplemented iNOS−/− mice. Our results thus demonstrate that nitrite supplementation to iNOS−/− mice improves insulin sensitivity and metabolic homeostasis, thus further highlighting the metabolic role of iNOS.
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Sadaf S, Awasthi D, Singh AK, Nagarkoti S, Kumar S, Barthwal MK, Dikshit M. Pyroptotic and apoptotic cell death in iNOS and nNOS overexpressing K562 cells: A mechanistic insight. Biochem Pharmacol 2019; 176:113779. [PMID: 31881190 DOI: 10.1016/j.bcp.2019.113779] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022]
Abstract
Previous studies from this lab and others have demonstrated that nitric oxide (NO) in a concentration dependent manner, modulated neutrophil and leukemic cell survival. Subsequent studies delineated importance of iNOS in neutrophil differentiation and leukemic cell death. On the contrary, role of nNOS in survival of these cells remains least understood. Present study was therefore undertaken to assess and compare the role of iNOS and nNOS in the survival of NOS overexpressing myelocytic K562 cells. Cells with almost similar iNOS and nNOS activities displayed comparable cell cycle perturbation, Annexin V positivity, mitochondrial dysfunction, augmented DCF fluorescence, and also attenuated expression of antioxidants. Moreover, induction in cell death was also accompanied by the activation of pJNK/p38MAPK/Erk1/2 and reduction in PI3K/Akt/mTOR signaling. Treatment of NOS isoform overexpressing K562 cells with NAC, a potent free radical scavenger prevented cell death and also the modulations in the signaling proteins. In addition, enhanced expression of CASP1 and CASP4 genes, along with increased Caspase-1 cleavage and increased IL-1β release were significantly more in K562iNOS cells, which indicate priming of these cells for pyroptotic cell death. On the other hand, K562nNOS cells, displayed much enhanced CASP3 gene expression, Caspase-3 cleavage and Caspase-3 activity. Results obtained indicate that similar level of iNOS or nNOS activation in K562 cells, preferred pyroptotic and apoptotic cell death respectively.
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Affiliation(s)
- Samreen Sadaf
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Deepika Awasthi
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | | | - Sheela Nagarkoti
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sachin Kumar
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | | | - Madhu Dikshit
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India.
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9
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Nagarkoti S, Dubey M, Sadaf S, Awasthi D, Chandra T, Jagavelu K, Kumar S, Dikshit M. Catalase S-Glutathionylation by NOX2 and Mitochondrial-Derived ROS Adversely Affects Mice and Human Neutrophil Survival. Inflammation 2019; 42:2286-2296. [DOI: 10.1007/s10753-019-01093-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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