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Malik S, Ahmad T, Muhammad K, Waheed Y. Respiratory Syncytial Virus Infection: Treatments and Clinical Management. Vaccines (Basel) 2023; 11. [PMID: 36851368 DOI: 10.3390/vaccines11020491] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/29/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
Respiratory syncytial virus (RSV) is a major healthcare concern, especially for immune-compromised individuals and infants below 5 years of age. Worldwide, it is known to be associated with incidences of morbidity and mortality in infants. Despite the seriousness of the issue and continuous rigorous scientific efforts, no approved vaccine or available drug is fully effective against RSV. The purpose of this review article is to provide insights into the past and ongoing efforts for securing effective vaccines and therapeutics against RSV. The readers will be able to confer the mechanism of existing therapies and the loopholes that need to be overcome for future therapeutic development against RSV. A methodological approach was applied to collect the latest data and updated results regarding therapeutics and vaccine development against RSV. We outline the latest throughput vaccination technologies and prophylactic development efforts linked with RSV. A range of vaccination approaches with the already available vaccine (with limited use) and those undergoing trials are included. Moreover, important drug regimens used alone or in conjugation with adjuvants or vaccines are also briefly discussed. After reading this article, the audience will be able to understand the current standing of clinical management in the form of the vaccine, prophylactic, and therapeutic candidates against RSV. An understanding of the biological behavior acting as a reason behind the lack of effective therapeutics against RSV will also be developed. The literature indicates a need to overcome the limitations attached to RSV clinical management, drugs, and vaccine development that could be explained by dealing with the challenges of current study designs with continuous improvement and further work and approval on novel therapeutic applications.
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2
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Malik S, Sah R, Ahsan O, Muhammad K, Waheed Y. Insights into the Novel Therapeutics and Vaccines against Herpes Simplex Virus. Vaccines (Basel) 2023; 11:vaccines11020325. [PMID: 36851203 PMCID: PMC9959597 DOI: 10.3390/vaccines11020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/21/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Herpes simplex virus (HSV) is a great concern of the global health community due to its linked infection of inconspicuous nature and resultant serious medical consequences. Seropositive patients may develop ocular disease or genital herpes as characteristic infectious outcomes. Moreover, the infectious nature of HSV is so complex that the available therapeutic options have been modified in certain ways to cure it. However, no permanent and highly effective cure has been discovered. This review generates insights into the available prophylactic and therapeutic interventions against HSV. A methodological research approach is used for study design and data complication. Only the latest data from publications are acquired to shed light on updated therapeutic approaches. These studies indicate that the current antiviral therapeutics can suppress the symptoms and control viral transmission up to a certain level, but cannot eradicate the natural HSV infection and latency outcomes. Most trials that have entered the clinical phase are made part of this review to understand what is new within the field. Some vaccination approaches are also discussed. Moreover, some novel therapeutic options that are currently in research annals are given due consideration for future development. The data can enable the scientific community to direct their efforts to fill the gaps that remain unfilled in terms of therapies for HSV. The need is to integrate scientific efforts to produce a proper cure against HSV to control the virus spread, resistance, and mutation in future disease management.
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Affiliation(s)
- Shiza Malik
- Bridging Health Foundation, Rawalpindi 46000, Pakistan
| | - Ranjit Sah
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu 44600, Nepal
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Center, Dr. D. Y. Patil Vidyapeeth, Pune 411018, Maharashtra, India
| | - Omar Ahsan
- Department of Medicine, School of Health Sciences, Foundation University Islamabad, DHA Phase I, Islamabad 44000, Pakistan
| | - Khalid Muhammad
- Department of Biology, College of Science, UAE University, Al Ain 15551, United Arab Emirates
| | - Yasir Waheed
- Office of Research, Innovation, and Commercialization (ORIC), Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44000, Pakistan
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos 1401, Lebanon
- Correspondence:
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3
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Affiliation(s)
- Claudia A Nold-Petry
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Paediatrics, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Marcel F Nold
- Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Australia.,Department of Paediatrics, School of Clinical Sciences, Monash University, Melbourne, Australia.,Monash Newborn, Monash Children's Hospital, Melbourne, Australia
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4
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Drozdz SJ, Goel A, McGarr MW, Katz J, Ritvo P, Mattina GF, Bhat V, Diep C, Ladha KS. Ketamine Assisted Psychotherapy: A Systematic Narrative Review of the Literature. J Pain Res 2022; 15:1691-1706. [PMID: 35734507 PMCID: PMC9207256 DOI: 10.2147/jpr.s360733] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/20/2022] [Indexed: 11/23/2022] Open
Abstract
Currently, ketamine is used in treating multiple pain, mental health, and substance abuse disorders due to rapid-acting analgesic and antidepressant effects. Its limited short-term durability has motivated research into the potential synergistic actions between ketamine and psychotherapy to sustain benefits. This systematic review on ketamine-assisted psychotherapy (KAP) summarizes existing evidence regarding present-day practices. Through rigorous review, seventeen articles that included 603 participants were identified. From available KAP publications, it is apparent that combined treatments can, in specific circumstances, initiate and prolong clinically significant reductions in pain, anxiety, and depressive symptoms, while encouraging rapport and treatment engagement, and promoting abstinence in patients addicted to other substances. Despite much variance in how KAP is applied (route of ketamine administration, ketamine dosage/frequency, psychotherapy modality, overall treatment length), these findings suggest psychotherapy, provided before, during, and following ketamine sessions, can maximize and prolong benefits. Additional large-scale randomized control trials are warranted to understand better the mutually influential relationships between psychotherapy and ketamine in optimizing responsiveness and sustaining long-term benefits in patients with chronic pain. Such investigations will assist in developing standardized practices and maintenance programs.
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Affiliation(s)
- Sandra J Drozdz
- Department of Anesthesia, St. Michael's Hospital, Toronto, ON, Canada
| | - Akash Goel
- Department of Anesthesia, St. Michael's Hospital, Toronto, ON, Canada.,Department of Anesthesiology, Pain and Perioperative Medicine, Stanford University, Stanford, CA, USA.,Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - Matthew W McGarr
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Joel Katz
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada.,Department of Psychology, York University, Toronto, ON, Canada.,Department of Anesthesia and Pain Management, University Health Network, Toronto, ON, Canada.,School of Kinesiology and Health Science, York University, Toronto, ON, Canada
| | - Paul Ritvo
- Department of Psychology, York University, Toronto, ON, Canada.,School of Kinesiology and Health Science, York University, Toronto, ON, Canada
| | | | - Venkat Bhat
- Interventional Psychiatry Program, St. Michael's Hospital, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Calvin Diep
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - Karim S Ladha
- Department of Anesthesia, St. Michael's Hospital, Toronto, ON, Canada.,Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
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Bayless RL, Sheats MK, Jones SL. Withaferin A Inhibits Neutrophil Adhesion, Migration, and Respiratory Burst and Promotes Timely Neutrophil Apoptosis. Front Vet Sci 2022; 9:900453. [PMID: 35782542 PMCID: PMC9247543 DOI: 10.3389/fvets.2022.900453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/24/2022] [Indexed: 01/25/2023] Open
Abstract
Neutrophils play a major role in many equine conditions, including equine asthma, laminitis, and intestinal ischemia and reperfusion injury, and therefore represent an attractive target for innovative therapeutic approaches. Novel strategies for reducing neutrophilic inflammation include modulation of neutrophil functions and lifespan. Withaferin A (WFA) is a phytochemical with well-established in vitro and in vivo anti-inflammatory properties, but its direct effects on neutrophils are largely unknown. We hypothesized that WFA would inhibit adhesion, migration, and respiratory burst by equine neutrophils and promote timely apoptosis of primed equine neutrophils. Consistent with this hypothesis, our data show that WFA causes a significant, concentration-dependent inhibition of equine neutrophil adhesion, migration, and respiratory burst in response to diverse stimuli. Further, WFA treatment increased apoptosis of equine neutrophils exposed to GM-CSF for 24 h. This pro-apoptotic effect of WFA was not observed in unprimed neutrophils, nor at the 2-h time point relevant to our functional neutrophil experiments. Our data demonstrate that WFA may reduce neutrophil-mediated inflammation through multiple mechanisms, including suppression of inflammatory responses and promotion of apoptosis. Additional research is needed to elucidate the molecular mechanisms for these effects and evaluate the potential clinical use of WFA in veterinary and human patients.
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Affiliation(s)
- Rosemary L Bayless
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
| | - M Katie Sheats
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
| | - Samuel L Jones
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
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Fraser-Pitt DJ, Dolan SK, Toledo-Aparicio D, Hunt JG, Smith DW, Lacy-Roberts N, Nupe Hewage PS, Stoyanova TN, Manson E, McClean K, Inglis NF, Mercer DK, O'Neil DA. Cysteamine Inhibits Glycine Utilisation and Disrupts Virulence in Pseudomonas aeruginosa. Front Cell Infect Microbiol 2021; 11:718213. [PMID: 34631600 PMCID: PMC8494450 DOI: 10.3389/fcimb.2021.718213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/11/2021] [Indexed: 11/13/2022] Open
Abstract
Pseudomonas aeruginosa is a major opportunistic human pathogen which employs a myriad of virulence factors. In people with cystic fibrosis (CF) P. aeruginosa frequently colonises the lungs and becomes a chronic infection that evolves to become less virulent over time, but often adapts to favour persistence in the host with alginate-producing mucoid, slow-growing, and antibiotic resistant phenotypes emerging. Cysteamine is an endogenous aminothiol which has been shown to prevent biofilm formation, reduce phenazine production, and potentiate antibiotic activity against P. aeruginosa, and has been investigated in clinical trials as an adjunct therapy for pulmonary exacerbations of CF. Here we demonstrate (for the first time in a prokaryote) that cysteamine prevents glycine utilisation by P. aeruginosa in common with previously reported activity blocking the glycine cleavage system in human cells. Despite the clear inhibition of glycine metabolism, cysteamine also inhibits hydrogen cyanide (HCN) production by P. aeruginosa, suggesting a direct interference in the regulation of virulence factor synthesis. Cysteamine impaired chemotaxis, lowered pyocyanin, pyoverdine and exopolysaccharide production, and reduced the toxicity of P. aeruginosa secreted factors in a Galleria mellonella infection model. Thus, cysteamine has additional potent anti-virulence properties targeting P. aeruginosa, further supporting its therapeutic potential in CF and other infections.
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Affiliation(s)
| | - Stephen K Dolan
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
| | | | | | | | | | - Piumi Sara Nupe Hewage
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | - Teodora N Stoyanova
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | - Erin Manson
- College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Kevin McClean
- Proteomics Facility Services, Moredun Research Institute, Penicuik, United Kingdom
| | - Neil F Inglis
- Proteomics Facility Services, Moredun Research Institute, Penicuik, United Kingdom
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Schultz CW, Ruiz de Garibay G, Langer A, Liu JB, Dhir T, Leitch C, Wessner CE, Mayoral M, Zhang B, Popa M, Huang C, Kotopoulis S, Luo X, Zhen Y, Niu S, Torkzaban M, Wallace K, Eisenbrey JR, Brody JR, McCormack E, Forsberg F. Selecting the optimal parameters for sonoporation of pancreatic cancer in a pre-clinical model. Cancer Biol Ther 2021; 22:204-215. [PMID: 33691611 DOI: 10.1080/15384047.2021.1881026] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest cancers in the modern world, in part due to poor delivery of chemotherapeutics. Sonoporation can be used to enhance the efficacy of standard of care therapies for PDAC. Using xenograft models of PDAC we investigate sonoporation using four ifferent ultrasound contrast agents (UCAs) and two ultrasound regimens to identify the ideal parameters to increase therapeutic efficacy. MIA-PaCa2 xenografts in over 175 immunodeficient mice were treated with gemcitabine and paclitaxel and subjected to low or high power ultrasound (60 and 200 mW/cm2 respectively) in conjunction with one of four different UCAs. The UCAs investigated were Definity®, SonoVue®, Optison™ or Sonazoid™. Tumor volumes, vascularity, hemoglobin, and oxygenation were measured and compared to controls. High power treatment in conjunction with Sonazoid sonoporation led to significantly smaller tumors when started early (tumors ~50mm3; p = .0105), while no UCAs significantly increased efficacy in the low power cohort. This trend was also found in larger tumors (~250mm3) where all four UCA agents significantly increased therapeutic efficacy in the high power group (p < .01), while only Definity and SonoVue increased efficacy in the low power cohort (p < .03). Overall, the higher power ultrasound treatment modality was more consistently effective at decreasing tumor volume and increasing vascularity characteristics. In conclusion, Sonazoid was the most consistently effective UCA at decreasing tumor volume and increasing vascularity. Thus, we are pursuing a larger phase II clinical trial to validate the increased efficacy of sonoporation in conjunction with chemotherapy in PDAC patients.
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Affiliation(s)
| | | | - Anika Langer
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Teena Dhir
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Calum Leitch
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Corinne E Wessner
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Mireia Mayoral
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Bo Zhang
- Department of Ultrasound, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mihaela Popa
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Chunwang Huang
- Department of Echocardiography, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Spiros Kotopoulis
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Ultrasound, National Center for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
| | | | - Yanhua Zhen
- Department of Ultrasound, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Sihua Niu
- Department of Ultrasound, Peking University People's Hospital, Beijing, China
| | - Mehnoosh Torkzaban
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | | | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jonathan R Brody
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Emmet McCormack
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
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Abstract
Iodine-resistant cancers account for the vast majority of thyroid related mortality and, until recently, there were limited therapeutic options. However, over the last decade our understanding of the molecular foundation of thyroid function and carcinogenesis has driven the development of many novel therapeutics. These include FDA approved tyrosine kinase inhibitors and small molecular inhibitors of VEGFR, BRAF, MEK, NTRK and RET, which collectively have significantly changed the prognostic outlook for this patient population. Some therapeutics can re-sensitize de-differentiated cancers to iodine, allowing for radioactive iodine treatment and improved disease control. Remarkably, there is now an FDA approved treatment for BRAF-mutated patients with anaplastic thyroid cancer, previously considered invariably and rapidly fatal. The treatment landscape for iodine-resistant thyroid cancer is changing rapidly with many new targets, therapeutics, clinical trials, and approved treatments. We provide an up-to-date review of novel therapeutic options in the treatment of iodine-resistant thyroid cancer.
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Affiliation(s)
- Tanner Fullmer
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Maria E. Cabanillas
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Mark Zafereo
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- *Correspondence: Mark Zafereo,
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Abstract
Myasthenia gravis is an autoimmune disease in which immunoglobulin G (IgG) autoantibodies are formed against the nicotinic acetylcholine receptor (AChR) or other components of the neuromuscular junction. Though effective treatments are currently available, many commonly used therapies have important limitations and alternative therapeutic options are needed for patients. A novel treatment approach currently in clinical trials for myasthenia gravis targets the neonatal Fc receptor (FcRn). This receptor plays a central role in prolonging the half–life of IgG molecules. The primary function of FcRn is salvage of IgG and albumin from lysosomal degradation through the recycling and transcytosis of IgG within cells. Antagonism of this receptor causes IgG catabolism, resulting in reduced overall IgG and pathogenic autoantibody levels. This treatment approach is particularly intriguing as it does not result in widespread immune suppression, in contrast to many therapies in routine clinical use. Experience with plasma exchange and emerging phase 2 clinical trial data of FcRn antagonists provide proof of concept for IgG lowering in myasthenia gravis. Here we review the IgG lifecycle and the relevance of IgG lowering to myasthenia gravis treatment and summarize the available data on FcRn targeted therapeutics in clinical trials for myasthenia gravis.
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Affiliation(s)
- Karissa L Gable
- Department of Neurology, Duke University School of Medicine, Durham, NC, United States
| | - Jeffrey T Guptill
- Department of Neurology, Duke University School of Medicine, Durham, NC, United States.,Duke Clinical Research Institute, Durham, NC, United States
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Fertan E, Stover KR, Brant MG, Stafford PM, Kelly B, Diez-Cecilia E, Wong AA, Weaver DF, Brown RE. Effects of the Novel IDO Inhibitor DWG-1036 on the Behavior of Male and Female 3xTg-AD Mice. Front Pharmacol 2019; 10:1044. [PMID: 31607909 PMCID: PMC6773979 DOI: 10.3389/fphar.2019.01044] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/16/2019] [Indexed: 12/11/2022] Open
Abstract
The kynurenine pathway metabolizes tryptophan into nicotinamide adenine dinucleotide, producing a number of intermediary metabolites, including 3-hydroxy kynurenine and quinolinic acid, which are involved in the neurodegenerative mechanisms that underlie Alzheimer's disease (AD). Indolamine 2,3-dioxygenase (IDO), the first and rate-limiting enzyme of this pathway, is increased in AD, and it has been hypothesized that blocking this enzyme may slow the progression of AD. In this study, we treated male and female 3xTg-AD and wild-type mice with the novel IDO inhibitor DWG-1036 (80 mg/kg) or vehicle (distilled water) from 2 to 6 months of age and then tested them in a battery of behavioral tests that measured spatial learning and memory (Barnes maze), working memory (trace fear conditioning), motor coordination and learning (rotarod), anxiety (elevated plus maze), and depression (tail suspension test). The 3xTg-AD mice treated with DWG-1036 showed better memory in the trace fear conditioning task and significant improvements in learning but poorer spatial memory in the Barnes maze. DWG-1036 treatment also ameliorated the behaviors associated with increased anxiety in the elevated plus maze and depression-like behaviors in the tail suspension test in 3xTg-AD mice. However, the effects of DWG-1036 treatment on the behavioral tasks were variable, and sex differences were apparent. In addition, high doses of DWG-1036 resulted in reduced body weight, particularly in females. Taken together, our results suggest that the kynurenine pathway is a promising target for treating AD, but more work is needed to determine the effective compounds, examine sex differences, and understand the side effects of the compounds.
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Affiliation(s)
- Emre Fertan
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
| | - Kurt R.J. Stover
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Michael G. Brant
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Paul M. Stafford
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Brendan Kelly
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Elena Diez-Cecilia
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Aimée A. Wong
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
| | - Donald F. Weaver
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Richard E. Brown
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
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