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Bartman AE, Raeisi M, Peiris CD, Jacobsen IE, Martin DB, Doorn JA. A Novel Analog of the Natural Product Fraxinellone Protects against Endogenous and Exogenous Neurotoxicants. ACS Chem Neurosci 2024; 15:2612-2622. [PMID: 38925635 PMCID: PMC11258694 DOI: 10.1021/acschemneuro.4c00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Numerous insults, both endogenous (e.g., glutamate) and exogenous (e.g., pesticides), compromise the function of the nervous system and pose risk factors for damage or later disease. In previous reports, limonoids such as fraxinellone showed significant neuroprotective activity against glutamate (Glu) excitotoxicity and reactive oxygen species (ROS) production in vitro, albeit with minimal mechanistic information provided. Given these findings, a library of novel fraxinellone analogs (including analogs 1 and 2 described here) was synthesized with the goal of identifying compounds exhibiting neuroprotection against insults. Analog 2 was found to be protective against Glu-mediated excitotoxicity with a measured EC50 of 44 and 39 nM for in vitro assays using PC12 and SH-SY5Y cells, respectively. Pretreatment with analog 2 yielded rapid induction of antioxidant genes, namely, Gpx4, Sod1, and Nqo1, as measured via qPCR. Analog 2 mitigated Glu-mediated ROS. Cytoprotection could be replicated using sulforaphane (SFN), a Nrf2 activator, and inhibited via ML-385, which inhibits Nrf2 binding to regulatory DNA sequences, thereby blocking downstream gene expression. Nrf2 DNA-binding activity was demonstrated using a Nrf2 ELISA-based transcription factor assay. In addition, we found that pretreatment with the thiol N-acetyl Cys completely mitigated SFN-mediated induction of antioxidant genes but had no effect on the activity of analog 2, suggesting thiol modification is not critical for its mechanism of action. In summary, our data demonstrate a fraxinellone analog to be a novel, potent, and rapid activator of the Nrf2-mediated antioxidant defense system, providing robust protection against insults.
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Affiliation(s)
- Anna E. Bartman
- Department
of Pharmaceutical Sciences & Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
| | - Mersad Raeisi
- Department
of Chemistry, College of Liberal Arts & Sciences, University of Iowa, Iowa City, Iowa 52242, United States
| | - Clarence D. Peiris
- Department
of Chemistry, College of Liberal Arts & Sciences, University of Iowa, Iowa City, Iowa 52242, United States
| | - Isabella E. Jacobsen
- Department
of Chemistry, College of Liberal Arts & Sciences, University of Iowa, Iowa City, Iowa 52242, United States
| | - David B.C. Martin
- Department
of Chemistry, College of Liberal Arts & Sciences, University of Iowa, Iowa City, Iowa 52242, United States
| | - Jonathan A. Doorn
- Department
of Pharmaceutical Sciences & Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
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2
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Lu SH, Yun TF, Kou YR, Chang YP. Preliminary evidence for therapeutic impact of intravesical glucosamine on protamine sulfate and potassium chloride-induced bladder overactivity in rat model. World J Urol 2024; 42:405. [PMID: 38990380 DOI: 10.1007/s00345-024-05100-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/31/2024] [Indexed: 07/12/2024] Open
Abstract
PURPOSE To investigate the protective effect of intravesical glucosamine in treating overactive bladder (OAB). METHODS Ninety-two female Sprague-Dawley (SD) rats were divided into 4 groups i.e. protamine sulfate (PS), N-acetylcysteine (NAC), and glucosamine-treated PS (GPS), and normal saline control (NC) were used. We induced hyperactivity in rats via intravesical infusion of PS and potassium chloride (KCl), whereas the NC group underwent a sustained intravesical saline infusion for 1 h. N-acetylcysteine (NAC), a potential antioxidant as well as anti-inflammatory agent was employed as positive control. Cystometrography (CMG) was then conducted to determine urodynamic parameters, i.e., leak point pressure (LPP, n = 48) and inter-contractile interval, the duration between two voids (ICI, n = 32). RESULTS LPP was significantly elevated in the GPS group (mean ± SD: 110.9 ± 6.2 mmHg) compared to the NC (81.0 ± 32.5 mmHg), PS (40.3 ± 10.9 mmHg), and NAC group (70.3 ± 19.4 mmHg). The cystometrogram data also reveals a prolonged ICI in the GPS group (241.3 ± 40.2 s) compared to the NC group (216.0 ± 41.7 s), PS group (128.8 ± 23.6 s), and NAC group (193.8 ± 28.3 s). CONCLUSION This preliminary study implies the ameliorative impact of GPS treatment on OAB in terms of improved urodynamic parameters, including LPP and ICI.
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Affiliation(s)
- Shing-Hwa Lu
- Department of Urology, Taipei Medical University Hospital, No. 252, Wu-Xing Street, Taipei, 11031, Taiwan.
- School of Medicine, Department of Urology, Taipei Medical University, Taipei, Taiwan.
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Tien-Fu Yun
- Department of Urology, Taipei Medical University Hospital, No. 252, Wu-Xing Street, Taipei, 11031, Taiwan
- School of Medicine, Department of Urology, Taipei Medical University, Taipei, Taiwan
| | - Yu Ru Kou
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Yi-Ping Chang
- Department of Healthcare Information and Management, Ming Chuan University, Taoyuan, Taiwan.
- Division of Nephrology, Taoyuan Branch, Taipei Veterans General Hospital, Taoyuan, Taiwan.
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3
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Mohammad A, Laboulaye MA, Shenhar C, Dobberfuhl AD. Mechanisms of oxidative stress in interstitial cystitis/bladder pain syndrome. Nat Rev Urol 2024; 21:433-449. [PMID: 38326514 DOI: 10.1038/s41585-023-00850-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 02/09/2024]
Abstract
Interstitial cystitis/bladder pain syndrome (IC/BPS) is characterized by bladder and/or pelvic pain, increased urinary urgency and frequency and nocturia. The pathophysiology of IC/BPS is poorly understood, and theories include chronic inflammation, autoimmune dysregulation, bacterial cystitis, urothelial dysfunction, deficiency of the glycosaminoglycan (GAG) barrier and urine cytotoxicity. Multiple treatment options exist, including behavioural interventions, oral medications, intravesical instillations and procedures such as hydrodistension; however, many clinical trials fail, and patients experience an unsatisfactory treatment response, likely owing to IC/BPS phenotype heterogeneity and the use of non-targeted interventions. Oxidative stress is implicated in the pathogenesis of IC/BPS as reactive oxygen species impair bladder function via their involvement in multiple molecular mechanisms. Kinase signalling pathways, nociceptive receptors, mast-cell activation, urothelial dysregulation and circadian rhythm disturbance have all been linked to reactive oxygen species and IC/BPS. However, further research is necessary to fully uncover the role of oxidative stress in the pathways driving IC/BPS pathogenesis. The development of new models in which these pathways can be manipulated will aid this research and enable further investigation of promising therapeutic targets.
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Affiliation(s)
- Ashu Mohammad
- Department of Urology, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Mallory A Laboulaye
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Chen Shenhar
- Department of Urology, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Amy D Dobberfuhl
- Department of Urology, Stanford University School of Medicine, Palo Alto, CA, USA.
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4
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Gad F, Abdelghaffar Emam M, Eldeeb AA, Abdelhameed AA, Soliman MM, Alotaibi KS, Albattal SB, Abughrien B. Mitigative Effects of l-Arginine and N-Acetyl Cysteine against Cisplatin-Induced Testicular Dysfunction and Toxicity through the Regulation of Antioxidant, Anti-inflammatory, and Antiapoptotic Markers: Role of miR-155 and miR-34c Expression. ACS OMEGA 2024; 9:27680-27691. [PMID: 38947789 PMCID: PMC11209920 DOI: 10.1021/acsomega.4c03742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Testicular dysfunction is a common adverse effect of cisplatin (CIS) administration as a chemotherapeutic drug. The current study has outlined the role of micro-RNAs (miR-155 and 34c) in CIS-induced testicular dysfunction and evaluated the protective effect of N-acetyl cysteine (NAC) and/or l-arginine (LA). Seven groups of Albino rats were used for this study. The control (C) group received physiological saline; the CIS group was injected CIS (7 mg/kg IP, once) on day 21 of the experiment; the NAC group was administered NAC (150 mg/kg intragastric, for 28 days); and the LA group was injected LA (50 mg/kg IP, for 28 days). NAC+CIS, LA+CIS, and NAC+LA+CIS groups received the above regime. CIS significantly reduced serum testosterone, LH, and FSH concentrations with decline of testicular enzyme activities. CIS caused significant elevation in testicular oxidative-stress biomarkers, inflammation-associated cytokines, and apoptosis markers, along with overexpression of miR-155 and low miR-34c expression. Additionally, marked testicular degenerative changes were observed in the examined histological section; a significant decrease in the expression of PCNA with significant increase in expressions of F4/80 and BAX was confirmed. The administration of NAC or LA upregulated testicular functions and improved histopathological and immunohistochemical changes as well as miRNA expression compared with the CIS-administered group. Rats receiving both NAC and LA showed a more significant ameliorative effect compared with groups receiving NAC or LA alone. In conclusion, NAC or LA showed an ameliorative effect against CIS-induced testicular toxicity and dysfunction through the regulation of antioxidant, anti-inflammatory, and antiapoptotic markers and via modulating miR-155 and miR-34c expression.
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Affiliation(s)
- Fatma
A. Gad
- Clinical
Pathology Department, Faculty of Veterinary Medicine, Benha University, P.O. Box13736 Benha, Egypt
| | - Mahmoud Abdelghaffar Emam
- Histology
Department., Faculty of Veterinary Medicine, Benha University, P.O. Box 13736 Benha, Egypt
| | - Abeer A. Eldeeb
- Clinical
Pharmacology Department, Faculty of Medicine, Benha University, 13511 Benha, Egypt
| | - Abeer A. Abdelhameed
- Clinical
Pharmacology Department, Faculty of Medicine, Benha University, 13511 Benha, Egypt
| | - Mohamed Mohamed Soliman
- Department
of Clinical Laboratory Sciences, Turabah University College, Taif University, P.O.
Box 11099, Taif 21944, Saudi Arabia
| | - Khalid S. Alotaibi
- General
Science and English Language Department, College of Applied Sciences, AlMaarefa University, Riyadh 71666, Saudi Arabia
| | - Shatha B. Albattal
- General
Science and English Language Department, College of Applied Sciences, AlMaarefa University, Riyadh 71666, Saudi Arabia
| | - Badia Abughrien
- Anatomy and
Histology Department, Faculty of Veterinary Medicine, Tripoli University, 15673 Tripoli, Libya
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Farouk F, Shebl RI. LC-MS/MS determination of pyocyanin-N-acetyl cysteine adduct: application for understanding Pseudomonas aeruginosa virulence factor neutralization. ANAL SCI 2024; 40:891-905. [PMID: 38472735 DOI: 10.1007/s44211-024-00531-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/06/2024] [Indexed: 03/14/2024]
Abstract
Combating Pseudomonas aeruginosa infection is challenging. It secretes pyocyanin (PCN) pigment that contributes to its virulence. Neutralizing PCN via reaction with thiol-containing compounds may represent a potential therapeutic option. This study investigates the neutralization reaction between PCN and N-acetyl cysteine (NAC) for bacterial inhibition and explores its mechanism of action. The neutralization adduct (PCN-NAC) was synthesized by reacting the purified PCN and NAC. The adduct was analyzed and its structure was elucidated. LC-MS/MS method was developed for the determination of PCN-NAC in P. aeruginosa cultures post-treatment with NAC (0-5 mg/mL). The corresponding anti-bacterial potential was estimated and compared to nanoparticles (NPs) alone and under stress conditions. In silico studies were performed to support explaining the mechanism of action. Results revealed that PCN-NAC was exclusively detected in NAC-treated cultures in a concentration-dependent manner. PCN-NAC concentration (230-915 µg/mL) was directly proportional to the reduction in the bacterial viable count (28.3% ± 7.1-87.5% ± 5.9) and outperformed all tested NPs, where chitosan NPs induced 56.9% ± 7.9 inhibition, followed by zinc NPs (49.4% ± 0.9) and gold NPs (17.8% ± 7.5) even post-exposure to different stress conditions. A concomitant reduction in PCN concentration was detected. In silico studies revealed possible interactions between key bacterial proteins and PCN-NAC rather than the NAC itself. These results pose NAC as a potential choice for the management of P. aeruginosa infection, where it neutralizes PCN via the formation of PCN-NAC adduct.
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Affiliation(s)
- Faten Farouk
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt.
| | - Rania Ibrahim Shebl
- Microbiology and Immunology Department, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
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6
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Abdo M, Kohaf N, Hammad MA, Ping CC. The Role of Oral Ascorbic Acid Administration in Combination With IV N-acetylcysteine in Delaying Inflammatory Cascade in Sepsis: A Case Report. Cureus 2023; 15:e49868. [PMID: 38169912 PMCID: PMC10758580 DOI: 10.7759/cureus.49868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2023] [Indexed: 01/05/2024] Open
Abstract
Sepsis is a life-threatening emergency that arises owing to a dysregulated host response to infection, leading to existence organ dysfunction. Vitamin C administration has led to a lower mortality rate in sepsis. N-acetylcysteine (NAC) treatment during sepsis improves hepatic function and enhances tissue oxygenation. The objective of this case report is to investigate the synergistic effect of the combination of vitamin C, thiamine, and NAC in delaying sepsis cascade and prolongation of survival time. In this case report, an oral dose of vitamin C 500 mg three times daily in combination with IV thiamine 100 mg three times daily, IV NAC, and hydrocortisone stress dose resulted in 12 days of survival of an immunocompromised patient with ventilator-associated pneumonia on single anti-pseudomonas beta-lactam antibiotic. The patient was a 60-year-old Malay female with previous bone marrow transplantation surgery and a medical history of ischemic stroke on phenytoin and valproate therapy. The patient was transferred to a medical ward in Penang General Hospital, Malaysia, due to community-acquired pneumonia. She was on ceftriaxone for five days, then sedated and ventilated in the ICU, with a shift to cefepime for three days, which was then changed to meropenem for nine days until the last day of life. Total anti-pseudomonas coverage was 12 days. The patient had multiple comorbidities from phenytoin-induced hepatic encephalopathy, acute kidney injury, and three sessions of hemodialysis. IV vitamin C was not available, so an oral dose was administered with potential efficacy in delaying the sepsis inflammatory cascade, leading to the use of a single (not double) anti-pseudomonas antibiotic for 12 days. Prolonged survival duration may be expected in the case of normal bone marrow patients with ventilator-associated pneumonia sepsis. In conclusion, Vitamin C, thiamine, and NAC combination resulted in delayed sepsis progression for 12 days and the survival of the immunocompromised patient on a single anti-pseudomonas beta-lactam antibiotic.
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Affiliation(s)
- Mahmoud Abdo
- Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Georgetown, MYS
| | - Neveen Kohaf
- Clinical Pharmacy, Al-Azhar University, Cairo, EGY
| | | | - Chong C Ping
- Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Georgetown, MYS
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7
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Sztolsztener K, Dzięcioł J, Chabowski A. N-acetylcysteine acts as a potent anti-inflammatory agent altering the eicosanoid profile in the development of simple steatosis and its progression to hepatitis. Clin Exp Hepatol 2023; 9:386-395. [PMID: 38774197 PMCID: PMC11103808 DOI: 10.5114/ceh.2023.133106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 10/24/2023] [Indexed: 05/24/2024] Open
Abstract
Aim of the study We aimed to examine the influence of N-acetylcysteine (NAC) on the development of metabolic dysfunction-associated steatotic liver disease (MASLD) in rats with a specific focus on the eicosanoid pathway. Material and methods The experiment was conducted on male Wistar rats fed a standard diet or a high-fat diet (HFD) for eight weeks. In the entire experiment, half of rats from both groups received intragastrically NAC solution prepared in normal saline. H + E staining was used for the histological assessment of liver tissue. The gas-liquid chromatography (GLC) technique was used for the assessment of the activity of n-3 and n-6 polyunsaturated fatty acid (PUFA) pathways and arachidonic acid concentration. ELISA and multiplex immunoassay kits were applied for the measurement of eicosanoid, cytokine, and chemokine levels. The Western blot technique was applied to determine the expression of proteins involved in the inflammation pathway. Results NAC decreased hepatic n-6 PUFA activity in all examined lipid pools and decreased the hepatic content of arachidonic acid as a pro-inflammatory precursor in each lipid pool, especially in the phospholipid fraction in rats with fatty lipid disease. NAC administration abolished 5-LOX expression, leading to a decrease in the content of pro-inflammatory leukotriene B4 and leukotriene C4. In rats with steatosis, NAC weakened NF-κB expression and raised Nrf-2 expression, inhibiting the synthesis of pro-inflammatory cytokines and chemokines. Conclusions NAC treatment significantly rate-limited the progression of simple hepatic steatosis to hepatitis in a rat model of MASLD.
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Affiliation(s)
| | - Janusz Dzięcioł
- Department of Human Anatomy, Medical University of Bialystok, Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
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8
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Clarke G, Mao J, Fan Y, Hann A, Gupta A, Nutu A, Buckel E, Kayani K, Murphy N, Bangash MN, Casey AL, Wootton I, Lawson AJ, Dasari BVM, Perera MTPR, Mergental H, Afford SC. N-acetylcysteine: a novel approach to methaemoglobinaemia in normothermic liver machine perfusion. Sci Rep 2023; 13:19022. [PMID: 37923778 PMCID: PMC10624848 DOI: 10.1038/s41598-023-45206-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023] Open
Abstract
Extended duration of normothermic machine perfusion (NMP) provides opportunities to resuscitate suboptimal donor livers. This intervention requires adequate oxygen delivery typically provided by a blood-based perfusion solution. Methaemoglobin (MetHb) results from the oxidation of iron within haemoglobin and represents a serious problem in perfusions lasting > 24 h. We explored the effects of anti-oxidant, N-acetylcysteine (NAC) on the accumulation of methaemoglobin. NMP was performed on nine human donor livers declined for transplantation: three were perfused without NAC (no-NAC group), and six organs perfused with an initial NAC bolus, followed by continuous infusion (NAC group), with hourly methaemoglobin perfusate measurements. In-vitro experiments examined the impact of NAC (3 mg) on red cells (30 ml) in the absence of liver tissue. The no-NAC group sustained perfusions for an average of 96 (range 87-102) h, universally developing methaemoglobinaemia (≥ 2%) observed after an average of 45 h, with subsequent steep rise. The NAC group was perfused for an average of 148 (range 90-184) h. Only 2 livers developed methaemoglobinaemia (peak MetHb of 6%), with an average onset of 116.5 h. Addition of NAC efficiently limits formation and accumulation of methaemoglobin during NMP, and allows the significant extension of perfusion duration.
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Affiliation(s)
- George Clarke
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK.
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK.
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK.
| | - Jingwen Mao
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
| | - Yiyu Fan
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
| | - Angus Hann
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
| | | | - Anisa Nutu
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
| | - Erwin Buckel
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
| | - Kayani Kayani
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
- Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
| | - Nicholas Murphy
- Intensive Care Unit, Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TH, UK
| | - Mansoor N Bangash
- Intensive Care Unit, Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TH, UK
| | - Anna L Casey
- Microbiology Department, Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
| | - Isla Wootton
- Clinical Biochemistry, Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
| | - Alexander J Lawson
- Clinical Biochemistry, Queen Elizabeth Hospital Birmingham, Birmingham, B15 2TH, UK
| | - Bobby V M Dasari
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
| | - M Thamara P R Perera
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
| | - Hynek Mergental
- Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Birmingham, B15 2TH, UK
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
| | - Simon C Afford
- Birmingham Biomedical Research Centre, National Institute for Health Research (NIHR), University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, B15 2TH, UK
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9
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Zhang F, Cheng T, Zhang SX. Mechanistic target of rapamycin (mTOR): a potential new therapeutic target for rheumatoid arthritis. Arthritis Res Ther 2023; 25:187. [PMID: 37784141 PMCID: PMC10544394 DOI: 10.1186/s13075-023-03181-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by systemic synovitis and bone destruction. Proinflammatory cytokines activate pathways of immune-mediated inflammation, which aggravates RA. The mechanistic target of rapamycin (mTOR) signaling pathway associated with RA connects immune and metabolic signals, which regulates immune cell proliferation and differentiation, macrophage polarization and migration, antigen presentation, and synovial cell activation. Therefore, therapy strategies targeting mTOR have become an important direction of current RA treatment research. In the current review, we summarize the biological functions of mTOR, its regulatory effects on inflammation, and the curative effects of mTOR inhibitors in RA, thus providing references for the development of RA therapeutic targets and new drugs.
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Affiliation(s)
- Fen Zhang
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, No. 382, Wuyi Road, Xinghualing District, Taiyuan, 030001, Shanxi Province, China
- Shanxi Provincial Key Laboratory of Rheumatism Immune Microecology, Taiyuan, Shanxi Province, China
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Taiyuan, Shanxi Province, China
| | - Ting Cheng
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, No. 382, Wuyi Road, Xinghualing District, Taiyuan, 030001, Shanxi Province, China
- Shanxi Provincial Key Laboratory of Rheumatism Immune Microecology, Taiyuan, Shanxi Province, China
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Taiyuan, Shanxi Province, China
| | - Sheng-Xiao Zhang
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, No. 382, Wuyi Road, Xinghualing District, Taiyuan, 030001, Shanxi Province, China.
- Shanxi Provincial Key Laboratory of Rheumatism Immune Microecology, Taiyuan, Shanxi Province, China.
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Taiyuan, Shanxi Province, China.
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10
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Kamaraj S, Vuppu S. Recent Review on the Extraction and Qualitative Assay of Cysteine and Other Amino Acids from Vellore Feather Waste and Molecular Docking Studies of Cysteine for Pharmacological Applications. Mol Biotechnol 2023:10.1007/s12033-023-00862-4. [PMID: 37715883 DOI: 10.1007/s12033-023-00862-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 08/06/2023] [Indexed: 09/18/2023]
Abstract
Products produced from waste are a relatively recent innovation. Feather substrates are abundant in keratin content and improper disposal can cause ecosystem contamination. However, these pollutants can be transformed into value-added products for industrial application. Physical, chemical and cutting-edge microbiological methods were utilized for decomposing keratin and aid in the identification and estimation of amino acids from poultry feather wastes. These beneficial approaches are receiving more attention due to their retrieval of harmless and value added byproducts. These keratin-based compounds are used widely in pharmaceutical, livestock feed, fertilizer, and a variety of other industrial sectors. Since keratin is primarily consisting of amino acids, it can be utilized to affirm and estimate the amino acids in these feather substrates. This study primarily highlights the various methodologies employed for the qualitative estimation of amino acids in feather waste samples and the inhibitory activity of keratinase enzyme by EDTA and pepstatin in order to accumulate amino acids for drug delivery purpose and their importance in various pharmaceutical industries. In addition to that, molecular docking studies of cysteine with many standard pharmaceutical drugs like acetaminophen, pethidine, methylphenidate, carbamazepine, cillin and amlodipine were performed using autodock to demonstrate how cysteine greatly reduces conventional drug toxicity and its side effects.
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Affiliation(s)
- Sathvika Kamaraj
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Suneetha Vuppu
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India.
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Hammad AM, Shawaqfeh B, Hikmat S, Al-Qirim T, Hamadneh L, Al-Kouz S, Awad MM, Hall FS. The Role of Vitamin E in Protecting against Oxidative Stress, Inflammation, and the Neurotoxic Effects of Acute Paracetamol in Pregnant Female Rats. TOXICS 2023; 11:368. [PMID: 37112594 PMCID: PMC10141164 DOI: 10.3390/toxics11040368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/29/2023] [Accepted: 04/06/2023] [Indexed: 06/19/2023]
Abstract
Paracetamol (acetaminophen, APAP) is the most common non-prescription analgesic drug used during pregnancy. The aim of this study was to investigate the effect of vitamin E on acute APAP toxicity in pregnant rats. Toxicity in the liver, kidney, and brain (hippocampus, cerebellum, and olfactory bulb) was examined. Twenty pregnant female Wistar rats at gestational day 18 were used. Pregnant rats were divided into four groups: Control, APAP, E + APAP, and APAP + E. The Control group was treated with 0.5 mL p.o. corn oil. The APAP group received 3000 mg/kg p.o. APAP. The E + APAP group received 300 mg/kg p.o. vitamin E one hour before 3000 mg/kg APAP. The APAP + E group received 3000 mg/kg paracetamol one hour before 300 mg/kg p.o. vitamin E. Twenty-four hours after the last treatment administration, rats were euthanized and blood, brain, liver, and kidney samples were collected. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine levels, uric acid (UA), and superoxide dismutase (SOD) levels, as well as the relative mRNA expression of Cyp1a4, Cyp2d6, and Nat2, were determined. Acute APAP treatment upregulated ALT, AST, BUN, and creatinine levels. APAP treatment downregulated UA and SOD levels. APAP treatment upregulated the relative mRNA expression of Cyp1a4 and Cyp2d6, but downregulated Nat2 expression. Vitamin E treatment, either before or after APAP administration, attenuated the toxic effects of APAP. In conclusion, the results showed that an acute toxic APAP dose in late pregnancy can cause oxidative stress and dysregulation in Cyp isoform expression, and that vitamin E treatment attenuates these effects.
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Affiliation(s)
- Alaa M. Hammad
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Baraa Shawaqfeh
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Suhair Hikmat
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Tariq Al-Qirim
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Lama Hamadneh
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
- Department of Basic Medical Sciences, Faculty of Medicine, Al-Balqa Applied University, Al-Salt 19117, Jordan
| | - Sameer Al-Kouz
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Mariam M. Awad
- Department of Pharmacy, College of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Frank S. Hall
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43606, USA;
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Nesterova IV, Atazhakhova MG, Teterin YV, Matushkina VA, Chudilova GA, Mitropanova MN. THE ROLE OF NEUTROPHIL EXTRACELLULAR TRAPS (NETS)
IN THE IMMUNOPATHOGENESIS OF SEVERE COVID-19: POTENTIAL IMMUNOTHERAPEUTIC STRATEGIES REGULATING NET FORMATION AND ACTIVITY. RUSSIAN JOURNAL OF INFECTION AND IMMUNITY 2023. [DOI: 10.15789/2220-7619-tro-2058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The role of neutrophil granulocytes (NG) in the pathogenesis of COVID-19 is associated with the recruitment of NG into inflammatory foci, activation of their functions and enhanced formation of neutrophil extracellular networks (NETs). In this review, we analyzed a fairly large volume of scientific literature devoted to the peculiarities of the formation of NETs, their role in the pathogenesis of COVID-19, participation in the occurrence of immunothrombosis, vasculitis, acute respiratory distress syndrome, cytokine storm syndrome, multi-organ lesions. Convincing data are presented that clearly indicate the significant involvement of NETs in the immunopathogenesis of COVID-19 and the associated severe complications resulting from the intensification of the inflammation process, which is key for the course of infection caused by the SARS-CoV-2 virus. The presented role of NG and NETs, along with the role of other immune system cells and pro-inflammatory cytokines, is extremely important in understanding the development of an overactive immune response in severe COVID-19. The obtained scientific results, available today, allow identifying the possibilities of regulatory effects on hyperactivated NG, on the formation of NETs at various stages and on limiting the negative impact of already formed NETs on various tissues and organs. All of the above should help in the creation of new, specialized immunotherapy strategies designed to increase the chances of survival, reduce the severity of clinical manifestations in patients with COVID-19, as well as significantly reduce mortality rates. Currently, it is possible to use existing drugs and a number of new drugs are being developed, the action of which can regulate the amount of NG, positively affect the functions of NG and limit the intensity of NETs formation. Continuing research on the role of hyperactive NG and netosis, as well as understanding the mechanisms of regulation of the phenomenon of formation and restriction of NETs activity in severe COVID-19, apparently, are a priority, since in the future the new data obtained could become the basis for the development of targeted approaches not only to immunotherapy aimed at limiting education and blocking negative effects already formed NETs in severe COVID-19, but also to immunotherapy, which could be used in the complex treatment of other netopathies, first of all, autoimmune diseases, auto-inflammatory syndromes, severe purulent-inflammatory processes, including bacterial sepsis and hematogenous osteomyelitis.
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Redwan A, Kiriaev L, Kueh S, Morley JW, Houweling P, Perry BD, Head SI. Six weeks of N-acetylcysteine antioxidant in drinking water decreases pathological fiber branching in MDX mouse dystrophic fast-twitch skeletal muscle. Front Physiol 2023; 14:1109587. [PMID: 36866174 PMCID: PMC9971923 DOI: 10.3389/fphys.2023.1109587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/03/2023] [Indexed: 02/16/2023] Open
Abstract
Introduction: It has been proposed that an increased susceptivity to oxidative stress caused by the absence of the protein dystrophin from the inner surface of the sarcolemma is a trigger of skeletal muscle necrosis in the destructive dystrophin deficient muscular dystrophies. Here we use the mdx mouse model of human Duchenne Muscular Dystrophy to test the hypothesis that adding the antioxidant NAC at 2% to drinking water for six weeks will treat the inflammatory phase of the dystrophic process and reduce pathological muscle fiber branching and splitting resulting in a reduction of mass in mdx fast-twitch EDL muscles. Methods: Animal weight and water intake was recorded during the six weeks when 2% NAC was added to the drinking water. Post NAC treatment animals were euthanised and the EDL muscles dissected out and placed in an organ bath where the muscle was attached to a force transducer to measure contractile properties and susceptibility to force loss from eccentric contractions. After the contractile measurements had been made the EDL muscle was blotted and weighed. In order to assess the degree of pathological fiber branching mdx EDL muscles were treated with collagenase to release single fibers. For counting and morphological analysis single EDL mdx skeletal muscle fibers were viewed under high magnification on an inverted microscope. Results: During the six-week treatment phase NAC reduced body weight gain in three- to nine-week-old mdx and littermate control mice without effecting fluid intake. NAC treatment also significantly reduced the mdx EDL muscle mass and abnormal fiber branching and splitting. Discussion: We propose chronic NAC treatment reduces the inflammatory response and degenerative cycles in the mdx dystrophic EDL muscles resulting in a reduction in the number of complexed branched fibers reported to be responsible for the dystrophic EDL muscle hypertrophy.
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Affiliation(s)
- Asma Redwan
- School of Medicine, Western Sydney University, Sydney, NSW, Australia
| | - Leonit Kiriaev
- Murdoch Children’s Research Institute, Melbourne, VIC, Australia
| | - Sindy Kueh
- School of Medicine, Western Sydney University, Sydney, NSW, Australia
| | - John W. Morley
- School of Medicine, Western Sydney University, Sydney, NSW, Australia
| | - Peter Houweling
- Murdoch Children’s Research Institute, Melbourne, VIC, Australia
| | - Ben D. Perry
- School of Science, Western Sydney University, Sydney, NSW, Australia
| | - Stewart I. Head
- School of Medicine, Western Sydney University, Sydney, NSW, Australia,Murdoch Children’s Research Institute, Melbourne, VIC, Australia,*Correspondence: Stewart I. Head,
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14
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Iskander P, Marzouk D, Iskander A, Oza F. Malicious Mushrooms. GASTRO HEP ADVANCES 2023; 2:544-546. [PMID: 39132040 PMCID: PMC11308037 DOI: 10.1016/j.gastha.2023.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/17/2023] [Indexed: 08/13/2024]
Abstract
Accidental ingestion of the toxic Death Cap mushroom, and others of the Amantina species, can occur due to their physical similarities with commonly edible fungi. Production of certain toxins which prevent protein synthesis can lead to fulminant organ failure and death. Although treatment is mostly supportive due to a lack of specific antidote, early recognition can aid in meaningful recovery. Nonspecific symptoms are generally present early in the course and, therefore, high index of suspicion is required. We present 2 cases of suspected Amanita phalloides poisoning leading to acute liver injury; one leading to resolvement of symptoms and the other being fatal.
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Affiliation(s)
| | - Diana Marzouk
- Virginia Commonwealth University, Richmond, Virginia
| | | | - Fouzia Oza
- The Wright Center for GME, Scranton, Pennsylvania
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15
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Mapamba DA, Sauli E, Mrema L, Lalashowi J, Magombola D, Buza J, Olomi W, Wallis RS, Ntinginya NE. Impact of N-Acetyl Cysteine (NAC) on Tuberculosis (TB) Patients-A Systematic Review. Antioxidants (Basel) 2022; 11:2298. [PMID: 36421484 PMCID: PMC9687770 DOI: 10.3390/antiox11112298] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 05/19/2024] Open
Abstract
Sustained TB infection overproduces reactive oxygen species (ROS) as a host defense mechanism. Research shows ROS is destructive to lung tissue. Glutathione (GSH) neutralizes ROS, although it is consumed. NAC is a precursor of GSH synthesis, and administering an appropriate dose of NAC to patients with respiratory conditions may enhance lung recovery and replenish GSH. The present review searched for articles reporting on the effects of NAC in TB treatment from 1960 to 31 May 2022. The PICO search strategy was used in Google Scholar, PubMed, SciFinder, and Wiley online library databases. The COVIDENCE tool was used to delete inappropriate content. We eventually discovered five clinical trials, one case report, seven reviews, in vitro research, and four experimental animal studies from the twenty-four accepted articles. The use of NAC resulted in increased GSH levels, decreased treatment time, and was safe with minimal adverse events. However, the evidence is currently insufficient to estimate the overall effects of NAC, thus the study warrants more NAC clinical trials to demonstrate its effects in TB treatment.
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Affiliation(s)
- Daniel Adon Mapamba
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
- The Nelson Mandela African Institution of Science and Technology, Arusha 23118, Tanzania
| | - Elingarami Sauli
- The Nelson Mandela African Institution of Science and Technology, Arusha 23118, Tanzania
| | - Lucy Mrema
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
| | - Julieth Lalashowi
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
| | - David Magombola
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
| | - Joram Buza
- The Nelson Mandela African Institution of Science and Technology, Arusha 23118, Tanzania
| | - Willyhelmina Olomi
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
| | | | - Nyanda Elias Ntinginya
- National Institute for Medical Research-Mbeya Medical Research Center, Mbeya 53107, Tanzania
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Population Pharmacokinetics of Doxycycline, Administered Alone or with N-Acetylcysteine, in Chickens with Experimental Mycoplasma gallisepticum Infection. Pharmaceutics 2022; 14:pharmaceutics14112440. [PMID: 36432632 PMCID: PMC9693581 DOI: 10.3390/pharmaceutics14112440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/25/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Mycoplasmosis is a bacterial infection that significantly affects poultry production, and it is often controlled with antibiotics, including doxycycline. The conducted study aimed to determine population pharmacokinetic (PopPk) parameters of doxycycline in healthy (n = 12) and in Mycoplasma gallisepticum-challenged (n = 20) chickens after its oral administration via drinking water at the registered dose rate of 20 mg/kg b.w./24 h for five days, without or with co-administration of N-acetylcysteine (NAC, a dose of 100 mg/kg b.w./24 h) via the feed. Doxycycline concentrations in plasma were analyzed with the LC-MS/MS method. The values of tvV/F and tvke were 4.73 L × kg−1 and 0.154 h−1, respectively, and they showed low BSV. A high BSV of 93.17% was calculated for the value of tlag of 0.8 h, which reflects the inter-individual differences in the water consumption. PTA was computed after Monte Carlo simulation with the registered dose for doxycycline. The target of %fT > MIC ≥ 80% and 100% can be achieved in 90% of the broiler population, after a correction for protein binding, for bacteria with MIC ≤ 0.5 mg × L−1 and 0.25 mg × L−1, respectively. The applied PopPk model did not reveal significant effect of M. gallisepticum infection and co-administration of NAC on pharmacokinetic parameters of doxycycline.
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17
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Kaur K, Chen PC, Ko MW, Mei A, Chovatiya N, Huerta-Yepez S, Ni W, Mackay S, Zhou J, Maharaj D, Malarkannan S, Jewett A. The Potential Role of Cytotoxic Immune Effectors in Induction, Progression and Pathogenesis of Amyotrophic Lateral Sclerosis (ALS). Cells 2022; 11:3431. [PMID: 36359827 PMCID: PMC9656116 DOI: 10.3390/cells11213431] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is an auto-immune neurodegenerative disorder affecting the motor-neuron system. The causes of ALS are heterogeneous, and are only partially understood. We studied different aspects of immune pathogenesis in ALS and found several basic mechanisms which are potentially involved in the disease. Our findings demonstrated that ALS patients' peripheral blood contains higher proportions of NK and B cells in comparison to healthy individuals. Significantly increased IFN-γ secretion by anti-CD3/28 mAbs-treated peripheral blood mononuclear cells (PBMCs) were observed in ALS patients, suggesting that hyper-responsiveness of T cell compartment could be a potential mechanism for ALS progression. In addition, elevated granzyme B and perforin secretion at a single cell level, and increased cytotoxicity and secretion of IFN-γ by patients' NK cells under specific treatment conditions were also observed. Increased IFN-γ secretion by ALS patients' CD8+ T cells in the absence of IFN-γ receptor expression, and increased CD8+ T cell effector/memory phenotype as well as increased granzyme B at the single cell level points to the CD8+ T cells as potential cells in targeting motor neurons. Along with the hyper-responsiveness of cytotoxic immune cells, significantly higher levels of inflammatory cytokines including IFN-γ was observed in peripheral blood-derived serum of ALS patients. Supernatants obtained from ALS patients' CD8+ T cells induced augmented cell death and differentiation of the epithelial cells. Weekly N-acetyl cysteine (NAC) infusion in patients decreased the levels of many inflammatory cytokines in peripheral blood of ALS patient except IFN-γ, TNF-α, IL-17a and GMCSF which remained elevated. Findings of this study indicated that CD8+ T cells and NK cells are likely culprits in targeting motor neurons and therefore, strategies should be designed to decrease their function, and eliminate the aggressive nature of these cells. Analysis of genetic mutations in ALS patient in comparison to identical twin revealed a number of differences and similarities which may be important in the pathogenesis of the disease.
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Affiliation(s)
- Kawaljit Kaur
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Po-Chun Chen
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Meng-Wei Ko
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Ao Mei
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Nishant Chovatiya
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Sara Huerta-Yepez
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Weiming Ni
- IsoPlexis, 35 North East Industrial Road, Branford, CT 06405, USA
| | - Sean Mackay
- IsoPlexis, 35 North East Industrial Road, Branford, CT 06405, USA
| | - Jing Zhou
- IsoPlexis, 35 North East Industrial Road, Branford, CT 06405, USA
| | - Dipanarine Maharaj
- South Florida Bone Marrow Stem Cell Transplant Institute, DBA Maharaj Institute of Immune Regenerative Medicine, 10301 Hagen Ranch Rd Ste. 600, Boynton Beach, FL 33437, USA
| | - Subramaniam Malarkannan
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, Versiti, Milwaukee, WI 53226, USA
| | - Anahid Jewett
- Division of Oral Biology and Medicine, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, University of California School of Dentistry, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
- The Jonsson Comprehensive Cancer Center, UCLA School of Dentistry and Medicine, 10833 Le Conte Ave., Los Angeles, CA 90095, USA
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18
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Principles behind SLE treatment with N-acetylcysteine. IMMUNOMETABOLISM (COBHAM (SURREY, ENGLAND)) 2022; 4:e00010. [PMID: 36312742 PMCID: PMC9605192 DOI: 10.1097/in9.0000000000000010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/21/2022] [Indexed: 01/24/2023]
Abstract
Systemic lupus erythematous (SLE) is a multisystem chronic autoimmune disease in which disrupted molecular pathways lead to multiple clinical manifestations. Currently approved treatments include hydroxychloroquine, some immunosuppressive medications, and some biologics. They all come with a range of side effects. N-acetylcysteine (NAC) is an antioxidant that has shown potential benefits in SLE patients without having major side effects. The following review highlights the molecular mechanisms behind the therapeutic effect of NAC in SLE patients. A higher-than normal mitochondrial transmembrane potential or mitochondrial hyperpolarization (MHP) was found in lymphocytes from SLE patients. MHP is attributed the blocked electron transport, and it is associated with the depletion of ATP and glutathione and the accumulation of oxidative stress-generating mitochondria due to diminished mitophagy. Comprehensive metabolome analyses identified the accumulation of kynurenine as the most predictive metabolic biomarker of lupus over matched healthy subjects. Cysteine is the rate-limiting constituent in the production of reduced glutathione, and it can be replaced by its precursor NAC. Kynurenine accumulation has been reversed by treatment with NAC but not placebo in the setting of a double-blind placebo-controlled clinical trial of 3-month duration. Mitochondrial oxidative stress and its responsiveness to NAC have been linked to systemic inflammation, gut microbiome changes, and organ damage in lupus-prone mice. Given the unique safety of NAC and chronicity of SLE, the clinical trial of longer duration is being pursued.
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MRI Detection of Hepatic N-Acetylcysteine Uptake in Mice. Biomedicines 2022; 10:biomedicines10092138. [PMID: 36140239 PMCID: PMC9495914 DOI: 10.3390/biomedicines10092138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
This proof-of-concept study looked at the feasibility of using a thiol–water proton exchange (i.e., CEST) MRI contrast to detect in vivo hepatic N-acetylcysteine (NAC) uptake. The feasibility of detecting NAC-induced glutathione (GSH) biosynthesis using CEST MRI was also investigated. The detectability of the GSH amide and NAC thiol CEST effect at B0 = 7 T was determined in phantom experiments and simulations. C57BL/6 mice were injected intravenously (IV) with 50 g L−1 NAC in PBS (pH 7) during MRI acquisition. The dynamic magnetisation transfer ratio (MTR) and partial Z-spectral data were generated from the acquisition of measurements of the upfield NAC thiol and downfield GSH amide CEST effects in the liver. The 1H-NMR spectroscopy on aqueous mouse liver extracts, post-NAC-injection, was performed to verify hepatic NAC uptake. The dynamic MTR and partial Z-spectral data revealed a significant attenuation of the mouse liver MR signal when a saturation pulse was applied at −2.7 ppm (i.e., NAC thiol proton resonance) after the IV injection of the NAC solution. The 1H-NMR data revealed the presence of hepatic NAC, which coincided strongly with the increased upfield MTR in the dynamic CEST data, providing strong evidence that hepatic NAC uptake was detected. However, this MTR enhancement was attributed to a combination of NAC thiol CEST and some other upfield MT-generating mechanism(s) to be identified in future studies. The detection of hepatic GSH via its amide CEST MRI contrast was inconclusive based on the current results.
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Cirulli F, De Simone R, Musillo C, Ajmone-Cat MA, Berry A. Inflammatory Signatures of Maternal Obesity as Risk Factors for Neurodevelopmental Disorders: Role of Maternal Microbiota and Nutritional Intervention Strategies. Nutrients 2022; 14:nu14153150. [PMID: 35956326 PMCID: PMC9370669 DOI: 10.3390/nu14153150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/28/2022] [Indexed: 02/01/2023] Open
Abstract
Obesity is a main risk factor for the onset and the precipitation of many non-communicable diseases. This condition, which is associated with low-grade chronic systemic inflammation, is of main concern during pregnancy leading to very serious consequences for the new generations. In addition to the prominent role played by the adipose tissue, dysbiosis of the maternal gut may also sustain the obesity-related inflammatory milieu contributing to create an overall suboptimal intrauterine environment. Such a condition here generically defined as “inflamed womb” may hold long-term detrimental effects on fetal brain development, increasing the vulnerability to mental disorders. In this review, we will examine the hypothesis that maternal obesity-related gut dysbiosis and the associated inflammation might specifically target fetal brain microglia, the resident brain immune macrophages, altering neurodevelopmental trajectories in a sex-dependent fashion. We will also review some of the most promising nutritional strategies capable to prevent or counteract the effects of maternal obesity through the modulation of inflammation and oxidative stress or by targeting the maternal microbiota.
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Affiliation(s)
- Francesca Cirulli
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; or
- Correspondence: (F.C.); (A.B.)
| | - Roberta De Simone
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (R.D.S.); (M.A.A.-C.)
| | - Chiara Musillo
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; or
- PhD Program in Behavioral Neuroscience, Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy
| | - Maria Antonietta Ajmone-Cat
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (R.D.S.); (M.A.A.-C.)
| | - Alessandra Berry
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; or
- Correspondence: (F.C.); (A.B.)
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21
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Obrador E, Salvador-Palmer R, López-Blanch R, Oriol-Caballo M, Moreno-Murciano P, Estrela JM. N-Acetylcysteine Promotes Metastatic Spread of Melanoma in Mice. Cancers (Basel) 2022; 14:cancers14153614. [PMID: 35892873 PMCID: PMC9331881 DOI: 10.3390/cancers14153614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Malignant melanoma is a cancer derived from melanocytes, the cells that produce pigment (melanin) in the skin. It develops on the skin, but can also appear on the mucous membranes and in other locations. Melanomas are responsible for 80% of deaths related to skin cancers. In recent years, the number of cases has increased alarmingly, likely in relation to sun exposure habits. Once melanoma spreads to distant parts of the body, the 5-year survival rate is about 10%. N-acetylcysteine (NAC) is a drug with antioxidant properties, and thereby could play a role in preventing cancer. NAC is commonly used as a mucolytic in different respiratory diseases, to treat acetaminophen (Tylenol) poisoning, and is also present in different nutritional supplements. Nevertheless, the use of NAC and other antioxidants in cancer has been questioned. Here, we show that high therapeutic doses of NAC may cause metastatic spread of a malignant melanoma. Abstract N-acetylcysteine (NAC) is a direct Cys donor and a promoter of glutathione (GSH) synthesis. GSH regulates melanoma growth and NAC has been suggested to increase melanoma metastases in mice. We found that high therapeutic doses of NAC do not increase the growth of melanoma xenografts, but can cause metastatic spread and distant metastases. Nevertheless, this is not due to an antioxidant effect since NAC, in fact, increases the generation of reactive oxygen species in the growing metastatic melanoma. Trolox, an antioxidant vitamin E derivative, administered in vivo, decreased metastatic growth. Metastatic cells isolated from NAC-treated mice showed an increase in the nuclear translocation of Nrf2, as compared to controls. Nrf2, a master regulator of the antioxidant response, controls the expression of different antioxidant enzymes and of the γ-glutamylcysteine ligase (the rate-limiting step in GSH synthesis). Cystine uptake through the xCT cystine-glutamate antiporter (generating intracellular Cys) and the γ-glutamylcysteine ligase activity are key to control metastatic growth. This is associated to an increase in the utilization of L-Gln by the metastatic cells, another metastases promoter. Our results demonstrate the potential of NAC as an inducer of melanoma metastases spread, and suggest that caution should be taken when administering GSH promoters to cancer patients.
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Affiliation(s)
- Elena Obrador
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (R.S.-P.); (R.L.-B.); (M.O.-C.)
- Scientia BioTech S.L., 46002 Valencia, Spain;
- Correspondence: (E.O.); (J.M.E.)
| | - Rosario Salvador-Palmer
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (R.S.-P.); (R.L.-B.); (M.O.-C.)
| | - Rafael López-Blanch
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (R.S.-P.); (R.L.-B.); (M.O.-C.)
- Scientia BioTech S.L., 46002 Valencia, Spain;
| | - María Oriol-Caballo
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (R.S.-P.); (R.L.-B.); (M.O.-C.)
| | | | - José M. Estrela
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (R.S.-P.); (R.L.-B.); (M.O.-C.)
- Scientia BioTech S.L., 46002 Valencia, Spain;
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain
- Correspondence: (E.O.); (J.M.E.)
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22
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Discovery of Therapeutics Targeting Oxidative Stress in Autosomal Recessive Cerebellar Ataxia: A Systematic Review. Pharmaceuticals (Basel) 2022; 15:ph15060764. [PMID: 35745683 PMCID: PMC9228961 DOI: 10.3390/ph15060764] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 01/05/2023] Open
Abstract
Autosomal recessive cerebellar ataxias (ARCAs) are a heterogeneous group of rare neurodegenerative inherited disorders. The resulting motor incoordination and progressive functional disabilities lead to reduced lifespan. There is currently no cure for ARCAs, likely attributed to the lack of understanding of the multifaceted roles of antioxidant defense and the underlying mechanisms. This systematic review aims to evaluate the extant literature on the current developments of therapeutic strategies that target oxidative stress for the management of ARCAs. We searched PubMed, Web of Science, and Science Direct Scopus for relevant peer-reviewed articles published from 1 January 2016 onwards. A total of 28 preclinical studies fulfilled the eligibility criteria for inclusion in this systematic review. We first evaluated the altered cellular processes, abnormal signaling cascades, and disrupted protein quality control underlying the pathogenesis of ARCA. We then examined the current potential therapeutic strategies for ARCAs, including aromatic, organic and pharmacological compounds, gene therapy, natural products, and nanotechnology, as well as their associated antioxidant pathways and modes of action. We then discussed their potential as antioxidant therapeutics for ARCAs, with the long-term view toward their possible translation to clinical practice. In conclusion, our current understanding is that these antioxidant therapies show promise in improving or halting the progression of ARCAs. Tailoring the therapies to specific disease stages could greatly facilitate the management of ARCAs.
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23
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Noori T, Sureda A, Sobarzo-Sánchez E, Shirooie S. The Role of Natural Products in Treatment of Depressive Disorder. Curr Neuropharmacol 2022; 20:929-949. [PMID: 34979889 PMCID: PMC9881107 DOI: 10.2174/1570159x20666220103140834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/09/2021] [Accepted: 11/26/2021] [Indexed: 11/22/2022] Open
Abstract
Depressive disorder is one of the most common psychiatric syndromes that, if left untreated, can cause many disturbances in a person's life. Numerous factors are involved in depression, including inflammation, brain-derived neurotrophic factor (BDNF), GABAergic system, hypothalamic- pituitary-adrenal (HPA) Axis, monoamine neurotransmitters (serotonin (5-HT), noradrenaline, and dopamine). Common treatments for depression are selective serotonin reuptake inhibitors, tricyclic antidepressants, and monoamine oxidase inhibitors, but these drugs have several side effects such as anxiety, diarrhea, constipation, weight loss, and sexual dysfunctions. These agents only reduce the symptoms and temporarily reduce the rate of cognitive impairment associated with depression. As a result, extensive research has recently been conducted on the potential use of antidepressant and sedative herbs. According to the available data, herbs used in traditional medicine can be significantly effective in reducing depression, depressive symptoms and improving patients' performance. The present study provides a summary of biomarkers and therapeutic goals of depression and shows that natural products such as saffron or genipin have antidepressant effects. Some of the useful natural products and their mechanisms were evaluated. Data on various herbs and natural isolated compounds reported to prevent and reduce depressive symptoms is also discussed.
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Affiliation(s)
- Tayebeh Noori
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress (NUCOX) and Health Research Institute of Balearic Islands (IdISBa), University of Balearic Islands-IUNICS, Palma de Mallorca E-07122, Balearic Islands, Spain;,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Eduardo Sobarzo-Sánchez
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile; Chile;,Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago, Spain
| | - Samira Shirooie
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran;,Address correspondence to this author at the Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; E-mail:
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24
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Cioarca-Nedelcu R, Atanasiu V, Stoian I. Alcoholic liver disease-from steatosis to cirrhosis - a biochemistry approach. J Med Life 2022; 14:594-599. [PMID: 35027961 PMCID: PMC8742892 DOI: 10.25122/jml-2021-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 10/07/2021] [Indexed: 12/20/2022] Open
Abstract
Nowadays, chronic alcoholism and its health implications represent a global concern. Over three million deaths are linked to chronic alcohol intake every year. This article aims to spread awareness about the negative impact ethanol can have on almost every organ in the body, especially the liver. Understanding ethanol metabolism and the cellular pathways through which alcohol increases liver oxidative stress may prevent a broad spectrum of hepatic lesions such as steatosis, steatohepatitis, and, ultimately, cirrhosis. After a short review of ethanol metabolism and liver oxidative stress, each hepatic lesion will be individually discussed regarding the mechanism of apparition, treatment, and future targeted therapies.
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Affiliation(s)
| | - Valeriu Atanasiu
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Irina Stoian
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
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25
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Allam A, Abdeen A, Devkota HP, Ibrahim SS, Youssef G, Soliman A, Abdel-Daim MM, Alzahrani KJ, Shoghy K, Ibrahim SF, Aboubakr M. N-Acetylcysteine Alleviated the Deltamethrin-Induced Oxidative Cascade and Apoptosis in Liver and Kidney Tissues. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020638. [PMID: 35055458 PMCID: PMC8775898 DOI: 10.3390/ijerph19020638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 02/01/2023]
Abstract
Deltamethrin (DLM) is a synthetic pyrethroid with anti-acaricide and insecticidal properties. It is commonly used in agriculture and veterinary medicine. Humans and animals are exposed to DLM through the ingestion of polluted food and water, resulting in severe health issues. N-acetylcysteine (NAC) is a prodrug of L-cysteine, the precursor to glutathione. It can restore the oxidant-antioxidant balance. Therefore, this research aimed to examine whether NAC may protect broiler chickens against oxidative stress, at the level of biochemical and molecular alterations caused by DLM intoxication. The indicators of liver and kidney injury in the serum of DLM-intoxicated and NAC-treated groups were examined. Furthermore, lipid peroxidation, antioxidant markers, superoxide dismutase activity, and apoptotic gene expressions (caspase-3 and Bcl-2) were investigated. All parameters were significantly altered in the DLM-intoxicated group, suggesting that DLM could induce oxidative damage and apoptosis in hepato-renal tissue. The majority of the changes in the studied parameters were reversed when NAC therapy was used. In conclusion, by virtue of its antioxidant and antiapoptotic properties, NAC enabled the provision of significant protection effects against DLM-induced hepato-renal injury.
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Affiliation(s)
- Ali Allam
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt; (A.A.); (M.A.)
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt; (S.S.I.); (G.Y.)
- Center of Excellence in Screening of Environmental Contaminants (CESEC), Benha University, Toukh 13736, Egypt
- Correspondence: (A.A.); (H.P.D.); Tel.: +20-1000222986 (A.A.); +81-96-371-4837 (H.P.D.)
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
- Correspondence: (A.A.); (H.P.D.); Tel.: +20-1000222986 (A.A.); +81-96-371-4837 (H.P.D.)
| | - Samar S. Ibrahim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt; (S.S.I.); (G.Y.)
| | - Gehan Youssef
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt; (S.S.I.); (G.Y.)
| | - Ahmed Soliman
- Pharmacology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt;
| | - Mohamed M. Abdel-Daim
- Department of Pharmaceutical Sciences, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia;
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Khalid J. Alzahrani
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Khaled Shoghy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Egypt;
| | - Samah F. Ibrahim
- Department of Clinical Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Mohamed Aboubakr
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt; (A.A.); (M.A.)
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26
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de Klerk DJ, de Keijzer MJ, Dias LM, Heemskerk J, de Haan LR, Kleijn TG, Franchi LP, Heger M. Strategies for Improving Photodynamic Therapy Through Pharmacological Modulation of the Immediate Early Stress Response. Methods Mol Biol 2022; 2451:405-480. [PMID: 35505025 DOI: 10.1007/978-1-0716-2099-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photodynamic therapy (PDT) is a minimally to noninvasive treatment modality that has emerged as a promising alternative to conventional cancer treatments. PDT induces hyperoxidative stress and disrupts cellular homeostasis in photosensitized cancer cells, resulting in cell death and ultimately removal of the tumor. However, various survival pathways can be activated in sublethally afflicted cancer cells following PDT. The acute stress response is one of the known survival pathways in PDT, which is activated by reactive oxygen species and signals via ASK-1 (directly) or via TNFR (indirectly). The acute stress response can activate various other survival pathways that may entail antioxidant, pro-inflammatory, angiogenic, and proteotoxic stress responses that culminate in the cancer cell's ability to cope with redox stress and oxidative damage. This review provides an overview of the immediate early stress response in the context of PDT, mechanisms of activation by PDT, and molecular intervention strategies aimed at inhibiting survival signaling and improving PDT outcome.
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Affiliation(s)
- Daniel J de Klerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Mark J de Keijzer
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Lionel M Dias
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Faculdade de Ciências da Saúde (FCS-UBI), Universidade da Beira Interior, Covilhã, Portugal
| | - Jordi Heemskerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
| | - Lianne R de Haan
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Tony G Kleijn
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Leonardo P Franchi
- Departamento de Bioquímica e Biologia Molecular, Instituto de Ciências Biológicas (ICB) 2, Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
- Faculty of Philosophy, Department of Chemistry, Center of Nanotechnology and Tissue Engineering-Photobiology and Photomedicine Research Group, Sciences, and Letters of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Michal Heger
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China.
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands.
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
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27
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Azoxystrobin Impairs Neuronal Migration and Induces ROS Dependent Apoptosis in Cortical Neurons. Int J Mol Sci 2021; 22:ijms222212495. [PMID: 34830376 PMCID: PMC8622671 DOI: 10.3390/ijms222212495] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Fungicides often cause genotoxic stress and neurodevelopmental disorders such as autism (ASD). Fungicide-azoxystrobin (AZOX) showed acute and chronic toxicity to various organisms, and remained a concern for ill effects in developing neurons. We evaluated the neurotoxicity of AZOX in developing mouse brains, and observed prenatal exposure to AZOX reduced neuronal viability, neurite outgrowth, and cortical migration process in developing brains. The 50% inhibitory concentration (IC50) of AZOX for acute (24 h) and chronic (7 days) exposures were 30 and 10 μM, respectively. Loss in viability was due to the accumulation of reactive oxygen species (ROS), and inhibited neurite outgrowth was due to the deactivation of mTORC1 kinase activity. Pretreatment with ROS scavenger- N-acetylcysteine (NAC) reserved the viability loss and forced activation of mTORC1 kinase revived the neurite outgrowth in AZOX treated neurons. Intra-amniotic injection of AZOX coupled with in utero electroporation of GFP-labelled plasmid in E15.5 mouse was performed and 20 mg/kg AZOX inhibited radial neuronal migration. Moreover, the accumulation of mitochondria was significantly reduced in AZOX treated primary neurons, indicative of mitochondrial deactivation and induction of apoptosis, which was quantified by Bcl2/Bax ratio and caspase 3 cleavage assay. This study elucidated the neurotoxicity of AZOX and explained the possible cure from it.
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28
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Dietary Supplements for Female Infertility: A Critical Review of Their Composition. Nutrients 2021; 13:nu13103552. [PMID: 34684554 PMCID: PMC8541636 DOI: 10.3390/nu13103552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/06/2021] [Indexed: 12/25/2022] Open
Abstract
Infertility is the condition of about 15% of couples that cannot get a conception after one year of unprotected sexual intercourse. In females, the reduced reproductive capacity underlies the most varied causes. Dietary supplements (DS) might be used to improve the pregnancy rate and a wide range of DS are proposed today to support female fertility. Although many authors demonstrated the positive effect of some of these products, the real efficacy of this approach is still debated. In order to evaluate the potential efficacy of DS for female infertility, we analysed the products marketed in Italy, using an original approach. A review of literature was performed to evaluate the effect of nutraceuticals on various female reproductive outcomes and to detect the minimal effective daily dose (mED) able to improve at least one of these. Thereafter, we conceived a formula to classify the expected efficacy of each DS. Each DS was scored and included into three classes of expected efficacy: higher, lower, and none. Ten out of 24 supplements (41.7%) resulted in the higher and 8 (34.3%) in the lower efficacy group, the remaining 6 DS (25.0%) were expected to have no efficacy. DS marketed in Italy are usually blends of many substances that are frequently employed at a negligible dose or without any evidence of efficacy. These findings raise serious doubt about the potential effectiveness of most commercial DS for female infertility.
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29
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Mohammed N, Ahmed SA, Hegazy NI, Kashishy K. Ameliorative effects of hesperidin and N-acetylcysteine against formaldehyde-induced-hemato- and genotoxicity. Toxicol Res (Camb) 2021; 10:992-1002. [PMID: 34733484 PMCID: PMC8557673 DOI: 10.1093/toxres/tfab083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/26/2021] [Accepted: 08/01/2021] [Indexed: 11/14/2022] Open
Abstract
This study investigated the hemato- and genotoxic effects of formaldehyde (FA) and the possible mitigating role of hesperidin (HP) and N-acetylcysteine (NAC), each alone and in combination. Sixty-four adult male albino rats were divided into eight equal groups; the study was conducted for 8 weeks; Group I (negative control: received no medication), Group II (positive control: received distilled water), Group III (received HP 50 mg/kg/day), Group IV (received NAC 50 mg/kg/day), Group V (received FA 10 mg/kg/day), Group VI (FA + HP), Group VII (FA + NAC), and Group VIII (FA + HP + NAC). Groups VI, VII, VIII received the same previously mentioned doses and for the same duration. All treatments were given by intraperitoneal administration. At the end of the study, complete blood count, oxidative stress, histopathological changes, immunohistochemical staining of inducible nitric oxide synthase, and proliferating cell nuclear antigen and genotoxicity by comet assay in the bone marrow of treated rats were assessed. FA administration caused significant hematotoxicity represented by elevated white blood cell numbers and serum malondialdehyde levels and reduced red blood cell numbers, platelets, and serum superoxide dismutase values. Histologically, it induced an increase in fat cell numbers in bone marrow tissue with a widening of marrow spaces and decreased cellularity of hematopoietic cells, megakaryocytes, and granulocytes. FA exposure significantly decreased immunoreactivity for proliferating cell nuclear antigen, whereas the immunoreactivity for inducible nitric oxide synthase was increased. Genotoxicity, as measured by comet assay, revealed a significant increase in comet% and tail length in FA-treated group when compared with other groups. The cotreatment with HP and NAC revealed their ability to protect against hematological changes, oxidative damage, histopathological, and immunohistochemical changes, and genotoxicity induced by FA.
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Affiliation(s)
- Nourhan Mohammed
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Sahar A Ahmed
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nagah I Hegazy
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Kamal Kashishy
- Department of Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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30
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N-Acetylcysteine Inhibits Patulin-Induced Apoptosis by Affecting ROS-Mediated Oxidative Damage Pathway. Toxins (Basel) 2021; 13:toxins13090595. [PMID: 34564600 PMCID: PMC8473236 DOI: 10.3390/toxins13090595] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/17/2022] Open
Abstract
Patulin (PAT) belongs to the family of food-borne mycotoxins. Our previous studies revealed that PAT caused cytotoxicity in human embryonic kidney cells (HEK293). In the present research, we systematically explored the detailed mechanism of ROS production and ROS clearance in PAT-induced HEK293 cell apoptosis. Results showed that PAT treatment (2.5, 5, 7.5, 10 μM) for 10 h could regulate the expression of genes and proteins involved in the mitochondrial respiratory chain complex, resulting in dysfunction of mitochondrial oxidative phosphorylation and induction of ROS overproduction. We further investigated the role of N-acetylcysteine (NAC), an ROS scavenger, in promoting the survival of PAT-treated HEK293 cells. NAC improves PAT-induced apoptosis of HEK293 cells by clearing excess ROS, modulating the expression of mitochondrial respiratory chain complex genes and proteins, and maintaining normal mitochondrial function. In addition, NAC protects the activity of antioxidant enzymes, maintains normal GSH content, and relieves oxidative damage. Additionally, 4 mM NAC alleviated 7.5 μM PAT-mediated apoptosis through the caspase pathway in HEK293 cells. In summary, our study demonstrated that ROS is significant in PAT-mediated cytotoxicity, which provides valuable insight into the management of PAT-associated health issues.
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31
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Hermel M, Sweeney M, Ni YM, Bonakdar R, Triffon D, Suhar C, Mehta S, Dalhoumi S, Gray J. Natural Supplements for COVID19-Background, Rationale, and Clinical Trials. J Evid Based Integr Med 2021; 26:2515690X211036875. [PMID: 34384258 PMCID: PMC8369961 DOI: 10.1177/2515690x211036875] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Worldwide, the turmoil of the SARS-CoV-2 (COVID-19) pandemic has generated a burst of research efforts in search of effective prevention and treatment modalities. Current recommendations on natural supplements arise from mostly anecdotal evidence in other viral infections and expert opinion, and many clinical trials are ongoing. Here the authors review the evidence and rationale for the use of natural supplements for prevention and treatment of COVID-19, including those with potential benefit and those with potential harms. Specifically, the authors review probiotics, dietary patterns, micronutrients, antioxidants, polyphenols, melatonin, and cannabinoids. Authors critically evaluated and summarized the biomedical literature published in peer-reviewed journals, preprint servers, and current guidelines recommended by expert scientific governing bodies. Ongoing and future trials registered on clinicaltrials.gov were also recorded, appraised, and considered in conjunction with the literature findings. In light of the controversial issues surrounding the manufacturing and marketing of natural supplements and limited scientific evidence available, the authors assessed the available data and present this review to equip clinicians with the necessary information regarding the evidence for and potential harms of usage to promote open discussions with patients who are considering dietary supplements to prevent and treat COVID-19.
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Affiliation(s)
- Melody Hermel
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Megan Sweeney
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Yu-Ming Ni
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Robert Bonakdar
- 540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Douglas Triffon
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Christopher Suhar
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Sandeep Mehta
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - Sarah Dalhoumi
- 540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
| | - James Gray
- 2697Scripps Health, Cardiology, San Diego, CA, USA.,540266Scripps Center for Integrative Medicine, La Jolla, CA, USA
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32
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Abstract
Glutathione (GSH) is the most abundant cellular antioxidant. As reactive oxygen species (ROS) are widely believed to promote aging and age-related diseases, and antioxidants can neutralize ROS, it follows that GSH and its precursor, N-acetyl cysteine (NAC), are among the most popular dietary supplements. However, the long- term effects of GSH or NAC on healthy animals have not been thoroughly investigated. We employed C. elegans to demonstrate that chronic administration of GSH or NAC to young or aged animals perturbs global gene expression, inhibits skn-1-mediated transcription, and accelerates aging. In contrast, limiting the consumption of dietary thiols, including those naturally derived from the microbiota, extended lifespan. Pharmacological GSH restriction activates the unfolded protein response and increases proteotoxic stress resistance in worms and human cells. It is thus advantageous for healthy individuals to avoid excessive dietary antioxidants and, instead, rely on intrinsic GSH biosynthesis, which is fine-tuned to match the cellular redox status and to promote homeostatic ROS signaling.
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33
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N-acetyl cysteine in combination with forelimbs remote ischemic preconditioning improves the contrast-induced nephropathy: an in-vivo experimental study. PHYSIOLOGY AND PHARMACOLOGY 2021. [DOI: 10.52547/phypha.27.1.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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34
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Badri S, Vahdat S, Seirafian S, Pourfarzam M, Gholipur-Shahraki T, Ataei S. Homocysteine-Lowering Interventions in Chronic Kidney Disease. J Res Pharm Pract 2021; 10:114-124. [PMID: 35198504 PMCID: PMC8809459 DOI: 10.4103/jrpp.jrpp_75_21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/25/2021] [Indexed: 12/20/2022] Open
Abstract
The incidence of cardiovascular events and mortality is higher in patients with chronic kidney disease (CKD) compared to the general population. Homocysteine (Hcy) appears to be an independent risk factor for cardiovascular diseases in general populations and patients with CKD. Further, hyperhomocysteinemia can cause endothelial damage and increase the activity and production of coagulation factors, and its prevalence among patients with end-stage renal disease is approximately 85%-100%. Most treatments, which lower Hcy levels and have been considered in previous studies, include folic acid, B vitamins, omega-3 fatty acids, and N-acetylcysteine. However, the effect of therapies that can decrease Hcy levels and thus cardiovascular events in these patients is still unclear. The results are conflicting and require further investigation. To guide treatment decisions and improve patient outcomes, multiple databases were searched, including Web of Science, PubMed, and Medline to summarize the available evidence (i.e., clinical trial and meta-analyses) on Hcy-lowering interventions and cardiovascular events.
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Affiliation(s)
- Shirinsadat Badri
- Department of Clinical Pharmacy and Pharmacy Practice, Isfahan University of Medical Sciences, Isfahan, Iran.,Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Vahdat
- Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shiva Seirafian
- Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Morteza Pourfarzam
- Department of Clinical Biochemistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Tahereh Gholipur-Shahraki
- Department of Clinical Pharmacy and Pharmacy Practice, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sara Ataei
- Department of Clinical Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
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Javaherforooshzadeh F, Shaker Z, Rashidi M, Akhondzadeh R, Hayati F. The effect of N-acetyl cysteine injection on renal function after coronary artery bypass graft surgery: a randomized double blind clinical trial. J Cardiothorac Surg 2021; 16:161. [PMID: 34090464 PMCID: PMC8180023 DOI: 10.1186/s13019-021-01550-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 05/25/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND This study aimed to compare the effects of N-acetyl cysteine on renal function after coronary artery bypass graft surgery. METHODS In this randomized clinical trial conducted in Golestan Hospital, Ahvaz, Iran, 60 candidates for coronary artery bypass graft surgery were selected and divided into two N-acetyl cysteine and control groups (30 people each). Patients received 3 (2 intraoperative and 1 postoperative) doses of IV N-acetyl cysteine (100 mg/kg) (n = 30) or placebo (n = 30) over 24 h. Prescription times were as follows: after induction of anesthesia, in the Next 4 h, and in the 16 h after on. Primary outcomes were serum levels of BUN and Cr, at baseline,4 and 48 h after surgery. And also need renal replacement therapy (RRT). Secondary outcomes included the hemodynamic variables, Blood products transfusion. RESULTS There were significant differences in BUN between groups at 4 h (P = 0.02) and 48 h after surgery (P = 0.001) There were significant differences in Cr level between groups at 4 h (P < 0.001) and 48 h after surgery (P = 0.001). MAP at different times (at 4 h p = 0.002 and 48 h after surgery P < 0.001) were significantly different between the two groups. There was a significant difference between the two groups in terms of the unit of Packed cell transfusion (P = 0.002) and FFP transfusion (P < 0.001). CONCLUSION In the present study, we found that administration of N-acetyl cysteine can reduce the incidence of acute kidney injury in patients undergoing coronary artery bypass graft surgery and improved kidney functions. TRIAL REGISTRY IRCT20190506043492N3 Registered at 2020.06.07.
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Affiliation(s)
- Fatemeh Javaherforooshzadeh
- Department of anesthesia, Ahvaz Anesthesiology and Pain Research Centre, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Zahra Shaker
- Department of anesthesia, Ahvaz Anesthesiology and Pain Research Centre, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahboobeh Rashidi
- Department of anesthesia, Ahvaz Anesthesiology and Pain Research Centre, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Akhondzadeh
- Department of anesthesia, Ahvaz Anesthesiology and Pain Research Centre, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fatemeh Hayati
- Department of Internal Medicine, School of Medicine. Chronic Renal Failure Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Simultaneous Determination of Human Serum Albumin and Low-Molecular-Weight Thiols after Derivatization with Monobromobimane. Molecules 2021; 26:molecules26113321. [PMID: 34205933 PMCID: PMC8198679 DOI: 10.3390/molecules26113321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022] Open
Abstract
Biothiols are extremely powerful antioxidants that protect cells against the effects of oxidative stress. They are also considered relevant disease biomarkers, specifically risk factors for cardiovascular disease. In this paper, a new procedure for the simultaneous determination of human serum albumin and low-molecular-weight thiols in plasma is described. The method is based on the pre-column derivatization of analytes with a thiol-specific fluorescence labeling reagent, monobromobimane, followed by separation and quantification through reversed-phase high-performance liquid chromatography with fluorescence detection (excitation, 378 nm; emission, 492 nm). Prior to the derivatization step, the oxidized thiols are converted to their reduced forms by reductive cleavage with sodium borohydride. Linearity in the detector response for total thiols was observed in the following ranges: 1.76–30.0 mg mL−1 for human serum albumin, 0.29–5.0 nmol mL−1 for α-lipoic acid, 1.16–35 nmol mL−1 for glutathione, 9.83–450.0 nmol mL−1 for cysteine, 0.55–40.0 nmol mL−1 for homocysteine, 0.34–50.0 nmol mL−1 for N-acetyl-L-cysteine, and 1.45–45.0 nmol mL−1 for cysteinylglycine. Recovery values of 85.16–119.48% were recorded for all the analytes. The developed method is sensitive, repeatable, and linear within the expected ranges of total thiols. The devised procedure can be applied to plasma samples to monitor biochemical processes in various pathophysiological states.
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Kobroob A, Peerapanyasut W, Kumfu S, Chattipakorn N, Wongmekiat O. Effectiveness of N-Acetylcysteine in the Treatment of Renal Deterioration Caused by Long-Term Exposure to Bisphenol A. Biomolecules 2021; 11:655. [PMID: 33946939 PMCID: PMC8145636 DOI: 10.3390/biom11050655] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Human health hazards caused by bisphenol A (BPA), a precursor for epoxy resins and polycarbonate-based plastics, are well documented and are closely associated with mitochondrial impairment and oxidative imbalance. This study aimed to assess the therapeutic efficacy of N-acetylcysteine (NAC) on renal deterioration caused by long-term BPA exposure and examine the signaling transduction pathway involved. Male Wistar rats were given vehicle or BPA orally for 12 weeks then the BPA-treated group was subdivided to receive vehicle or NAC concurrently with BPA for a further 4 weeks, while the vehicle-treated normal control group continued to receive vehicle through to the end of experiment. Proteinuria, azotemia, glomerular filtration reduction and histopathological abnormalities caused by chronic BPA exposure were significantly reduced following NAC therapy. NAC also diminished nitric oxide and lipid peroxidation but enhanced renal glutathione levels, and counteracted BPA-induced mitochondrial swelling, increased mitochondrial reactive oxygen species production, and the loss of mitochondrial membrane potential. The benefit of NAC was related to the modulation of signaling proteins in the AMPK-SIRT3-SOD2 axis. The present study shows the potential of NAC to restore mitochondrial integrity and oxidative balance after long-term BPA exposure, and suggests that NAC therapy is an effective approach to tackle renal deterioration in this condition.
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Affiliation(s)
- Anongporn Kobroob
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand;
| | - Wachirasek Peerapanyasut
- Renal Physiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Sirinart Kumfu
- Cardiac Electrophysiology Research and Training Center, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (S.K.); (N.C.)
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (S.K.); (N.C.)
| | - Orawan Wongmekiat
- Renal Physiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
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Wani TH, Chowdhury G, Chakrabarty A. Generation of reactive oxygen species is the primary mode of action and cause of survivin suppression by sepantronium bromide (YM155). RSC Med Chem 2021; 12:566-578. [PMID: 34046628 PMCID: PMC8128069 DOI: 10.1039/d0md00383b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/25/2021] [Indexed: 12/24/2022] Open
Abstract
Survivin is a lucrative broad-spectrum drug target for different cancer types, including triple negative breast cancer (TNBC). Sepantronium bromide (YM155) is the first of its class of survivin suppressants and was found to be quite effective in pre-clinical models of TNBC. However, in clinical trials when given in combination with docetaxel, YM55 failed to provide any added advantage. To understand if the clinical outcome is due to YM155 being ineffective or due to an inappropriate choice of combination, we need to elucidate its true mode of action. Hence, to explain the unexpected and unexplained observations pertaining to YM155 biology and its mode of action, we developed isogenic pairs of YM155-sensitive and -resistant TNBC cell lines and characterized them in detail by various biochemical assays. We found that YM155 generates reactive oxygen species (ROS) in the mitochondria in addition to the previously discovered redox cycling pathway. Both survivin suppression and DNA damage are secondary effects resulting from the ROS which contribute to the drug's cytotoxic effects on TNBC cells. Indeed, adaptation to both these pathways was important in conferring YM155 resistance. Finally, we uncovered a unique connection between the ROS and control of survivin expression involving a ROS/AKT/FoxO/survivin axis in TNBC cells. Together, by deciphering the true mode of action of YM155, we present a possible explanation for its poor clinical efficacy when used in combination with docetaxel. The results and conclusions presented here provide the information needed to effectively use YM155 in combination therapy.
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Affiliation(s)
- Tasaduq Hussain Wani
- Department of Life Sciences, Shiv Nadar University Greater Noida UP 201314 India
| | | | - Anindita Chakrabarty
- Department of Life Sciences, Shiv Nadar University Greater Noida UP 201314 India
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Clinical Remission Using Personalized Low-Dose Intravenous Infusions of N-acetylcysteine with Minimal Toxicities for Interstitial Cystitis/Bladder Pain Syndrome. J Pers Med 2021; 11:jpm11050342. [PMID: 33923265 PMCID: PMC8145543 DOI: 10.3390/jpm11050342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
Interstitial Cystitis or Bladder Pain Syndrome (IC/BPS) is a heterogeneous condition characterized by elevated levels of inflammatory cytokines, IL-1β, IL-6, IL-8, IL-10, TNF-α, and is associated with debilitating symptoms of pelvic pain and frequent urination. A standard of care for IC/BPS has not been established, and most patients must undergo a series of different treatment options, with potential for severe adverse events. Here, we report a patient with a 26-year history of IC/BPS following treatment with multiple therapies, including low doses of etodolac, amitriptyline and gabapentin, which she was unable to tolerate because of adverse effects, including headaches, blurred vision and cognitive impairment. The patient achieved a complete clinical remission with minimal adverse events after 16 cycles of N-acetylcysteine (NAC) intravenous (IV) infusions over a period of 5 months, and pro-inflammatory cytokine levels were reduced when compared to measurements taken at presentation. Personalized low dose NAC IV infusion therapy represents an effective, safe, anti-inflammatory therapy administered in the outpatient setting for IC/BPS, and warrants further investigation.
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40
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Alshogran OY, Nusair SD, El-Elimat T, Alzoubi KH, Obeidat A, Sweidan M. Evaluation of coenzyme Q10 combined with or without N-acetyl cysteine or atorvastatin for preventing contrast-induced kidney injury in diabetic rats. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:1403-1410. [PMID: 33630121 DOI: 10.1007/s00210-021-02070-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Combined antioxidants effect for prevention of contrast-induced nephropathy (CIN) remains unclear. This study assessed the potential protective effects of coenzyme Q10 (CoQ10) alone or combined with N-acetyl cysteine (NAC) or atorvastatin against CIN in diabetic rats. Animals were randomly divided into five groups, including control and four disease groups with CIN and diabetes. Group 2 included diabetic rats with CIN. Groups 3-5 included diabetic rats that received CoQ10, CoQ10 and NAC, or CoQ10 and atorvastatin, respectively, before CIN induction. Serum, urine, and tissue were collected to evaluate renal protective effects of tested agents. Renal biomarkers, oxidative stress, and histopathological alterations were investigated. Rats with CIN showed significant renal impairment as revealed by the deleterious effects on kidney function and histology. While induction of CIN did not affect the renal levels of catalase, glutathione peroxidase (GPx), and thiobarbituric acid reactive substances, pretreatment of animals with CoQ10/NAC showed significant increase in GPx and catalase levels versus controls. Lastly, pretreatment with CoQ10/atorvastatin showed regenerative effect on distal tubules with mild kidney histology alterations relative to CIN rats. The combined use of CoQ10/atorvastatin could be a potential strategy to prevent CIN. However, future studies are warranted to test different combinations for longer prophylactic periods.
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Affiliation(s)
- Osama Y Alshogran
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Shreen D Nusair
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Tamam El-Elimat
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Karem H Alzoubi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Abdullah Obeidat
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Maya Sweidan
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Shaposhnikov MV, Zemskaya NV, Koval LA, Schegoleva EV, Yakovleva DV, Ulyasheva NS, Gorbunova AA, Minnikhanova NR, Moskalev AA. Geroprotective potential of genetic and pharmacological interventions to endogenous hydrogen sulfide synthesis in Drosophila melanogaster. Biogerontology 2021; 22:197-214. [PMID: 33544267 DOI: 10.1007/s10522-021-09911-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022]
Abstract
Endogenous hydrogen sulfide (H2S) is a gasotransmitter with a wide range of physiological functions. Aging is accompanied by disruption of H2S homeostasis, therefore, interventions to the processes of H2S metabolism to maintain its balance may have geroprotective potential. Here we demonstrated the additive geroprotective effect of combined genetic and pharmacological interventions to the hydrogen sulfide biosynthesis system by overexpression of cystathionine-β-synthase and cystathionine-γ-lyase genes and treatment with precursors of H2S synthesis cysteine (Cys) and N-acetyl-L-cysteine (NAC). The obtained results suggest that additive effects of genetic and pharmacological interventions to H2S metabolism may be associated with the complex interaction between beneficial action of H2S production and prevention of adverse effects of excess H2S production by Cys and NAC treatment.
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Affiliation(s)
- Mikhail V Shaposhnikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russian Federation.,Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Nadezhda V Zemskaya
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Liubov A Koval
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Eugenia V Schegoleva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Daria V Yakovleva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Natalia S Ulyasheva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Anastasia A Gorbunova
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Natalya R Minnikhanova
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Alexey A Moskalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russian Federation. .,Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation.
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Seyedian R, Shabankareh Fard E, Najafiasl M, Assadi M, Zaeri S. N-acetylcysteine-loaded electrospun mats improve wound healing in mice and human fibroblast proliferation in vitro: a potential application of nanotechnology in wound care. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:1590-1602. [PMID: 33489034 PMCID: PMC7811817 DOI: 10.22038/ijbms.2020.41550.11078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 09/12/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVES N-acetylcysteine (NAC) has gained attention recently in dermatology as a unique anti-oxidant. In light of progress in nanotechnological methods, it was hypothesized that loading NAC onto nanofibers would positively affect skin wound healing. The objective of this study was to fabricate NAC-loaded electrospun mats and test their effect on wound healing in vivo and in vitro. MATERIALS AND METHODS Polyvinyl alcohol (PVA)-based mats loaded with NAC at three concentrations were electrospun and characterized in terms of physicochemical properties and drug release profile. Human fibroblast cells (in vitro) and mouse full-thickness skin wounds (in vivo) were treated with mats for 5 and 14 days, respectively. Wound area, tissue histopathology, fibroblast proliferation and cellular oxidative state were evaluated. RESULTS Mats containing 5% PVA/NAC showed thinner fibers with suitable physicochemical properties and a sustained drug release profile. PVA/NAC (5%) mats enhanced fibroblast proliferation and attachment in vitro. The mats resulted in significant wound closure with high levels of re-epithelialization and collagen fiber synthesis on day 14 post-surgery in vivo. The mats also reduced granulation tissue and edematous stroma to a higher extent. These findings were accompanied by a significant decrease in tissue lipid peroxidation and higher superoxide dismutase activity, which may explain how NAC improved wound healing. CONCLUSION We propose an NAC-loaded nanofibrous mat that takes the advantage of a porous nanoscaffold structure to release NAC in a sustained manner. This mat may be a promising candidate for further clinical evaluation.
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Affiliation(s)
- Ramin Seyedian
- Department of Pharmacology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Elham Shabankareh Fard
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Maryam Najafiasl
- Department of Chemical Engineering, School of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran
| | - Majid Assadi
- Nuclear Medicine and Molecular Imaging Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Sasan Zaeri
- Department of Pharmacology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
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Atefi N, Behrangi E, Mozafarpoor S, Seirafianpour F, Peighambari S, Goodarzi A. N-acetylcysteine and coronavirus disease 2019: May it work as a beneficial preventive and adjuvant therapy? A comprehensive review study. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2020; 25:109. [PMID: 33824674 PMCID: PMC8019127 DOI: 10.4103/jrms.jrms_777_20] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/11/2020] [Accepted: 09/25/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Coronaviruses are major pathogens of respiratory system causing different disorders, including the common cold, Middle East respiratory syndrome, and severe acute respiratory syndrome. Today's global pandemic coronavirus disease 2019 (COVID-19) has high mortality rate, with an approximate of 20% in some studies, and is 30-60 times more fatal than the common annual influenza, However, there is still no gold standard treatment for it. N-acetylcysteine (NAC) is a well-known multi-potential drug with hypothetically probable acceptable effect on COVID-related consequences, which we completely focused in this comprehensive review. MATERIALS AND METHODS PubMed, Scopus, Science Direct, and Google Scholar have been searched. Study eligibility criteria: efficacy of NAC in various subclasses of pathogenic events which may occur during COVID-19 infection. Efficacy of NAC for managing inflammatory or any symptoms similar to symptoms of COVID-19 was reviewed and symptom improvements were assessed. RESULTS Randomized clinical trials introduced NAC as an antioxidant glutathione analog and detoxifying agent promoted for different medical conditions and pulmonary disorders to alleviate influenza and reduce mortality by 50% in influenza-infected animals. The beneficial effects of NAC on viral disorders, including Epstein-Barr virus, HIV and hepatitis, and well-known vital organ damages were also exist and reported. CONCLUSION We classified the probable effects of NAC as oxidative-regulatory and apoptotic-regulatory roles, antiviral activities, anti-inflammatory roles, preventive and therapeutic roles in lung disorders and better oxygenation functions, supportive roles in intensive care unit admitted patients and in sepsis, positive role in other comorbidities and nonpulmonary end-organ damages or failures and even in primary COVID-associated cutaneous manifestations. Based on different beneficial effects of NAC, it could be administered as a potential adjuvant therapy for COVID-19 considering patient status, contraindications, and possible drug-related adverse events.
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Affiliation(s)
- Najmolsadat Atefi
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Elham Behrangi
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Samaneh Mozafarpoor
- Department of Dermatology, Skin Disease and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnoosh Seirafianpour
- Department of General Medicine, Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran
| | - Shadi Peighambari
- Department of Internal Medicine, San Joaquin General Hospital, CA, USA
| | - Azadeh Goodarzi
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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Machado RCBR, Vargas HO, Baracat MM, Urbano MR, Verri WA, Porcu M, Nunes SOV. N-acetylcysteine as an adjunctive treatment for smoking cessation: a randomized clinical trial. ACTA ACUST UNITED AC 2020; 42:519-526. [PMID: 32725102 PMCID: PMC7524413 DOI: 10.1590/1516-4446-2019-0753] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 02/21/2020] [Indexed: 02/05/2023]
Abstract
Objective: This randomized controlled trial examined the efficacy and safety of N-acetylcysteine as an adjunctive treatment for smoking cessation. Methods: Heavy smokers were recruited from smoking cessation treatment for this 12- week randomized controlled trial. Eligible tobacco use disorder outpatients (n=34) were randomized to N-acetylcysteine or placebo plus first-line treatment. Abstinence was verified by exhaled carbon monoxide (COexh). The assessment scales included the Fagerström Test for Nicotine Dependence, the Hamilton Depression Rating Scale, the Hamilton Anxiety Rating Scale, the Minnesota Nicotine Withdrawal Scale, and the Medication Adherence Rating Scale. We also assessed anthropometrics, blood pressure, lipid profile, and soluble tumor necrosis factor receptor (sTNF-R) levels 1 and 2. Results: First-line treatment for smoking cessation plus adjunctive N-acetylcysteine or placebo significantly reduced COexh (p < 0.01). In the N-acetylcysteine group, no significant changes were found in nicotine withdrawal symptoms, depressive and anxiety symptoms, anthropometric measures, blood pressure, or glucose compared to placebo. However, there was a significant reduction in sTNF-R2 levels between baseline and week 12 in the N-acetylcysteine group. Conclusions: These findings highlight the need to associate N-acetylcysteine with first-line treatment for smoking cessation, since combined treatment may affect inflammation and metabolism components. Clinical trial registration: NCT02420418
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Affiliation(s)
- Regina C B R Machado
- Centro de Referência de Abordagem e Tratamento do Tabagismo, Hospital Universitário, Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil.,Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil
| | - Heber O Vargas
- Centro de Referência de Abordagem e Tratamento do Tabagismo, Hospital Universitário, Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil.,Departamento de Medicina Clínica, Unidade de Psiquiatria, Hospital Universitário, CCS, UEL, Londrina, PR, Brazil
| | - Marcela M Baracat
- Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil
| | - Mariana R Urbano
- Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil.,Departamento de Estatística, Centro de Ciências Exatas, UEL, Londrina, PR, Brazil
| | - Waldiceu A Verri
- Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil.,Departamento de Patologia, Centro de Ciências Biológicas, UEL, Londrina, PR, Brazil
| | - Mauro Porcu
- Centro de Referência de Abordagem e Tratamento do Tabagismo, Hospital Universitário, Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil.,Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil
| | - Sandra O V Nunes
- Centro de Referência de Abordagem e Tratamento do Tabagismo, Hospital Universitário, Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil.,Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Saúde (CCS), UEL, Londrina, PR, Brazil.,Departamento de Medicina Clínica, Unidade de Psiquiatria, Hospital Universitário, CCS, UEL, Londrina, PR, Brazil
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45
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Liu R, Li D, Sun F, Rampoldi A, Maxwell JT, Wu R, Fischbach P, Castellino SM, Du Y, Fu H, Mandawat A, Xu C. Melphalan induces cardiotoxicity through oxidative stress in cardiomyocytes derived from human induced pluripotent stem cells. Stem Cell Res Ther 2020; 11:470. [PMID: 33153480 PMCID: PMC7643439 DOI: 10.1186/s13287-020-01984-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/20/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Treatment-induced cardiotoxicity is a leading noncancer-related cause of acute and late onset morbidity and mortality in cancer patients on antineoplastic drugs such as melphalan-increasing clinical case reports have documented that it could induce cardiotoxicity including severe arrhythmias and heart failure. As the mechanism by which melphalan impairs cardiac cells remains poorly understood, here, we aimed to use cardiomyocytes derived from human induced pluripotent stem cells (hiPSC-CMs) to investigate the cellular and molecular mechanisms of melphalan-induced cardiotoxicity. METHODS hiPSC-CMs were generated and treated with clinically relevant doses of melphalan. To characterize melphalan-induced cardiotoxicity, cell viability and apoptosis were quantified at various treatment durations. Ca2+ transient and contractility analyses were used to examine the alterations of hiPSC-CM function. Proteomic analysis, reactive oxygen species detection, and RNA-Sequencing were conducted to investigate underlying mechanisms. RESULTS Melphalan treatment of hiPSC-CMs induced oxidative stress, caused Ca2+ handling defects and dysfunctional contractility, altered global transcriptomic and proteomic profiles, and resulted in apoptosis and cell death. The antioxidant N-acetyl-L-cysteine attenuated these genomic, cellular, and functional alterations. In addition, several other signaling pathways including the p53 and transforming growth factor-β signaling pathways were also implicated in melphalan-induced cardiotoxicity according to the proteomic and transcriptomic analyses. CONCLUSIONS Melphalan induces cardiotoxicity through the oxidative stress pathway. This study provides a unique resource of the global transcriptomic and proteomic datasets for melphalan-induced cardiotoxicity and can potentially open up new clinical mechanism-based targets to prevent and treat melphalan-induced cardiotoxicity.
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Affiliation(s)
- Rui Liu
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
- Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Dong Li
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
| | - Fangxu Sun
- School of Chemistry and Biochemistry and the Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Antonio Rampoldi
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
| | - Joshua T Maxwell
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
| | - Ronghu Wu
- School of Chemistry and Biochemistry and the Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Peter Fischbach
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
| | - Sharon M Castellino
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA
| | - Yuhong Du
- Emory Chemical Biology Discovery Center and the Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Haian Fu
- Emory Chemical Biology Discovery Center and the Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Anant Mandawat
- Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Cardio-Oncology Program, Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA
| | - Chunhui Xu
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA, 30322, USA.
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30322, USA.
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46
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Paul AM, Mhatre SD, Cekanaviciute E, Schreurs AS, Tahimic CGT, Globus RK, Anand S, Crucian BE, Bhattacharya S. Neutrophil-to-Lymphocyte Ratio: A Biomarker to Monitor the Immune Status of Astronauts. Front Immunol 2020; 11:564950. [PMID: 33224136 PMCID: PMC7667275 DOI: 10.3389/fimmu.2020.564950] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
A comprehensive understanding of spaceflight factors involved in immune dysfunction and the evaluation of biomarkers to assess in-flight astronaut health are essential goals for NASA. An elevated neutrophil-to-lymphocyte ratio (NLR) is a potential biomarker candidate, as leukocyte differentials are altered during spaceflight. In the reduced gravity environment of space, rodents and astronauts displayed elevated NLR and granulocyte-to-lymphocyte ratios (GLR), respectively. To simulate microgravity using two well-established ground-based models, we cultured human whole blood-leukocytes in high-aspect rotating wall vessels (HARV-RWV) and used hindlimb unloaded (HU) mice. Both HARV-RWV simulation of leukocytes and HU-exposed mice showed elevated NLR profiles comparable to spaceflight exposed samples. To assess mechanisms involved, we found the simulated microgravity HARV-RWV model resulted in an imbalance of redox processes and activation of myeloperoxidase-producing inflammatory neutrophils, while antioxidant treatment reversed these effects. In the simulated microgravity HU model, mitochondrial catalase-transgenic mice that have reduced oxidative stress responses showed reduced neutrophil counts, NLR, and a dampened release of selective inflammatory cytokines compared to wildtype HU mice, suggesting simulated microgravity induced oxidative stress responses that triggered inflammation. In brief, both spaceflight and simulated microgravity models caused elevated NLR, indicating this as a potential biomarker for future in-flight immune health monitoring.
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Affiliation(s)
- Amber M Paul
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,Universities Space Research Association, Columbia, MD, United States
| | - Siddhita D Mhatre
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,COSMIAC Research Center, University of New Mexico, Albuquerque, NM, United States.,KBR, Houston, TX, United States
| | - Egle Cekanaviciute
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Ann-Sofie Schreurs
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Candice G T Tahimic
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,COSMIAC Research Center, University of New Mexico, Albuquerque, NM, United States.,Department of Biology, University of North Florida, Jacksonville, FL, United States
| | - Ruth K Globus
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Sulekha Anand
- Department of Biological Sciences, San Jose State University, San Jose, CA, United States
| | - Brian E Crucian
- Biomedical Research and Environmental Sciences Division, NASA Johnson Science Center, Houston, TX, United States
| | - Sharmila Bhattacharya
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
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47
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Hsu CN, Tain YL. Early Origins of Hypertension: Should Prevention Start Before Birth Using Natural Antioxidants? Antioxidants (Basel) 2020; 9:E1034. [PMID: 33113999 PMCID: PMC7690716 DOI: 10.3390/antiox9111034] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022] Open
Abstract
Hypertension may originate in early life. Reactive oxygen species (ROS) generated due to the exposure of adverse in utero conditions causes developmental programming of hypertension. These excessive ROS can be antagonized by molecules which are antioxidants. Prenatal use of natural antioxidants may reverse programming processes and prevent hypertension of developmental origin. In the current review, firstly we document data on the impact of oxidative stress in hypertension of developmental origin. This will be followed by effective natural antioxidants uses starting before birth to prevent hypertension of developmental origin in animal models. It will also discuss evidence for the common mechanisms underlying developmental hypertension and beneficial effects of natural antioxidant interventions used as reprogramming strategies. A better understanding of the reprogramming effects of natural antioxidants and their interactions with common mechanisms underlying developmental hypertension is essential. Therefore, pregnant mothers and their children can benefit from natural antioxidant supplementation during pregnancy in order to reduce their risk for hypertension later in life.
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Affiliation(s)
- Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
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48
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Pirjani R, Rabiei M, Abiri A, Moini A. An Overview on Guidelines on COVID-19 Virus and Natural and Assisted Reproductive Techniques Pregnancies. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2020; 14:264-271. [PMID: 33098398 PMCID: PMC7604706 DOI: 10.22074/ijfs.2020.46230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/13/2020] [Indexed: 11/22/2022]
Abstract
In this article, we reviewed and compared some of COVID-19 and pregnancy guidelines; this can be useful
for pregnant women including those with a history of infertility specially those undergone assisted reproduc-
tive techniques (ART). The general advice given for prenatal care is to reduce face-to-face visits. All women
who refer for prenatal visits should be evaluated for signs of the infection at the time of entry. The triage of
suspected women should be done separately from other patients. Outpatient monitoring with a 14-day self-
quarantine can be considered for asymptomatic infected women and for those with mild symptoms.
Inpatient management criteria include moderate to severe symptoms and the target level of oxygen saturation
is 92 to 95% in different guidelines. In the presence of fever, it is important to conduct a thorough examination
of other causes of the fever. It is important to monitor fluid intake and output, maintain fluid and electrolyte
balance and prevent fluid overload. Thromboembolic prophylaxis is recommended. Corticosteroid administra-
tion is based on obstetrics indications, while in critical ill cases, it should be based on multi-disciplinary teams
(MDT) decision. A positive COVID-19 result in the absence of other obstetrics causes, cannot be considered
an indication for delivery in mild and asymptomatic cases. In critically ill pregnant women, an individualized
decision should be made about delivery time by the MDT. General anesthetic should be avoided unless inevi-
table for standard procedures such as intubation is an aerosol-generating procedure (AGP). There is agreement
on the point that babies born to infected mothers, even if isolated from the mother at birth, should be consid-
ered a close contact of the mother and tested for COVID-19 and separated from other neonates. Breastfeeding
is encouraged and hand hygiene and face mask during feeding are highly recommended by all guidelines.
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Affiliation(s)
- Reihaneh Pirjani
- Department of Obstetrics and Gynecology, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Rabiei
- Department of Obstetrics and Gynecology, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ameneh Abiri
- Department of Obstetrics and Gynecology, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashraf Moini
- Department of Obstetrics and Gynecology, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran.,Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran. Electronic Address:
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49
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Jannatifar R, Parivar K, Hayati Roodbari N, Nasr-Esfahani MH. The Effect of N-Acetyl-Cysteine on NRF2 Antioxidant Gene Expression in Asthenoteratozoospermia Men: A Clinical Trial Study. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2020; 14:171-175. [PMID: 33098382 PMCID: PMC7604699 DOI: 10.22074/ijfs.2020.44411] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 05/11/2020] [Indexed: 12/15/2022]
Abstract
Background One of the important factor associated with male infertility is high production of reactive oxygen species (ROS).
The main function of Nuclear factor erythroid 2-related factor 2 (NRF2) is to activate the cellular anti-
oxidant response by inducing the transcription of a wide array of genes that can combat the harmful effects of factors
such as oxidative stress. The purpose of this study was to evaluate the effect of N-acetyl-L-cysteine (NAC), as an
antioxidant drug, on NRF2 Gene Expression in Asthenoteratozoospermia Men. Materials and Methods In this randomized, blinded clinical trial study, included 50 infertile men with asthenoteratozoo-
spermia, who received NAC (600 mg, three times daily). Sperm parameters analyzed according to the world health organiza-
tion (WHO; 2010). Sperm DNA fragmentation, relative NRF2 expression, and seminal plasma level of antioxidant enzymes
were measured by TUNEL assay, reverse transcription polymerase chain reaction (RT-PCR) and ELISA test, respectively.
Results After NAC treatment, findings showed a significant increase in sperm concentration and motility compared
to pre-treatment status, whereas the percentage of abnormal morphology and DNA fragmentation was significantly
decreased (P<0.05). A significant improvement in expression of NRF2 gene and antioxidant enzyme levels were ob-
served compared to pre-treatment by NAC (P<0.05). Significant correlations were observed between NRF2 mRNA
expression level, specific sperm parameters and level of antioxidant enzymes (P<0.05). Conclusion The results demonstrated that NAC oral supplementation protected against oxidative stress by enhancing
NRF2 expression. This could improve semen parameters quality parameters in asthenoteratozoospermia men (Regis-
tration number: IRCT20170830035998N4).
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Affiliation(s)
- Rahil Jannatifar
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Kazem Parivar
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nasim Hayati Roodbari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran. Electronic Address: .,Isfahan Fertility and Infertility Centre, Isfahan, Iran
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50
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Shah KN, Shah PN, Mullen AR, Chen Q, Southerland MR, Chirra B, DeBerardinis RJ, Cannon CL. N-Acetyl cysteine abrogates silver-induced reactive oxygen species in human cells without altering silver-based antimicrobial activity. Toxicol Lett 2020; 332:118-129. [PMID: 32659471 PMCID: PMC7643162 DOI: 10.1016/j.toxlet.2020.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 01/10/2023]
Abstract
Silver-based antimicrobials are widely used topically to treat infections associated with multi-drug resistant (MDR) pathogens. Expanding this topical use to aerosols to treat lung infections requires understanding and preventing silver toxicity in the respiratory tract. A key mechanism resulting in silver-induced toxicity is the production of reactive oxygen species (ROS). In this study, we have verified ROS generation in silver-treated bronchial epithelial cells prompting evaluation of three antioxidants, N-acetyl cysteine (NAC), ascorbic acid, and melatonin, to identify potential prophylactic agents. Among them, NAC was the only candidate that abrogated the ROS generation in response to silver acetate exposure resulting in the rescue of these cells from silver-associated toxicity. Further, this protective effect directly translated to preservation of metabolic activity, as demonstrated by the normal levels of citric acid cycle metabolites in NAC-pretreated silver acetate-exposed cells. Because the citric acid cycle remained functional, silver-exposed cells pre-incubated with NAC demonstrated significantly higher levels of adenosine triphosphate levels compared with NAC-free controls. Moreover, we found that this prodigious capacity of NAC to rescue silver acetate-exposed cells was due not only to its antioxidant activity, but also to its ability to directly bind silver. Despite binding to silver, NAC did not alter the antimicrobial activity of silver acetate.
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Affiliation(s)
- Kush N Shah
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA
| | - Parth N Shah
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA
| | - Andrew R Mullen
- Department of Pediatrics, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - Qingquan Chen
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA
| | - Marie R Southerland
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA
| | - Bhagath Chirra
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA
| | - Ralph J DeBerardinis
- Department of Pediatrics, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - Carolyn L Cannon
- Department of Microbial Pathogenesis & Immunology, Texas A&M University Health Science Center, College Station, TX, USA.
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