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Lal R, Dharavath RN, Chopra K. Nrf2 Signaling Pathway: a Potential Therapeutic Target in Combating Oxidative Stress and Neurotoxicity in Chemotherapy-Induced Cognitive Impairment. Mol Neurobiol 2024; 61:593-608. [PMID: 37644279 DOI: 10.1007/s12035-023-03559-6] [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: 12/21/2022] [Accepted: 08/05/2023] [Indexed: 08/31/2023]
Abstract
Chemotherapy-induced cognitive impairment (CICI) is one of the major adverse effects of antineoplastic drugs, which decrease the quality of life in cancer survivors. Extensive experimental and clinical research suggests that chemotherapeutic drugs generate an enormous amount of reactive oxygen species (ROS), contributing to oxidative stress, neuroinflammation, blood-brain barrier (BBB) disruption, and neuronal death, eventually leading to CICI. Despite the progress in exploring different pathological mechanisms of CICI, effective treatment to prevent CICI progression has not been developed yet. Nrf2 is the principal transcription factor that regulates cellular redox balance and inflammation-related gene expression. Emerging evidence suggests that upregulation of Nrf2 and its target genes could suppress oxidative stress, and neuroinflammation, restore BBB integrity, and increase neurogenesis. This review discusses the role of Nrf2 in CICI, how it responds to oxidative stress, inflammation, neurotoxicity, and potential Nrf2 activators that could be used to enhance Nrf2 activation in CICI.
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Affiliation(s)
- Roshan Lal
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
| | - Ravinder Naik Dharavath
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, M5T 1R8, Canada
| | - Kanwaljit Chopra
- Pharmacology Division, University Institute of Pharmaceutical Sciences (UIPS), Panjab University, Chandigarh, 160014, India.
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Budamagunta V, Kumar A, Rani A, Manohar Sindhu S, Yang Y, Zhou D, Foster TC. Senolytic treatment alleviates doxorubicin-induced chemobrain. Aging Cell 2024; 23:e14037. [PMID: 38225896 PMCID: PMC10861213 DOI: 10.1111/acel.14037] [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: 08/22/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 01/17/2024] Open
Abstract
Doxorubicin (Dox), a widely used treatment for cancer, can result in chemotherapy-induced cognitive impairments (chemobrain). Chemobrain is associated with inflammation and oxidative stress similar to aging. As such, Dox treatment has also been used as a model of aging. However, it is unclear if Dox induces brain changes similar to that observed during aging since Dox does not readily enter the brain. Rather, the mechanism for chemobrain likely involves the induction of peripheral cellular senescence and the release of senescence-associated secretory phenotype (SASP) factors and these SASP factors can enter the brain to disrupt cognition. We examined the effect of Dox on peripheral and brain markers of aging and cognition. In addition, we employed the senolytic, ABT-263, which also has limited access to the brain. The results indicate that plasma SASP factors enter the brain, activating microglia, increasing oxidative stress, and altering gene transcription. In turn, the synaptic function required for memory was reduced in response to altered redox signaling. ABT-263 prevented or limited most of the Dox-induced effects. The results emphasize a link between cognitive decline and the release of SASP factors from peripheral senescent cells and indicate some differences as well as similarities between advanced age and Dox treatment.
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Affiliation(s)
- Vivekananda Budamagunta
- Department of Neuroscience, McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
- Genetics and Genomics Graduate Program, Genetics InstituteUniversity of FloridaGainesvilleFloridaUSA
- Department of Pharmacodynamics, College of PharmacyUniversity of FloridaGainesvilleFloridaUSA
| | - Ashok Kumar
- Department of Neuroscience, McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
| | - Asha Rani
- Department of Neuroscience, McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
| | - Sahana Manohar Sindhu
- Genetics and Genomics Graduate Program, Genetics InstituteUniversity of FloridaGainesvilleFloridaUSA
| | - Yang Yang
- Department of Pharmacodynamics, College of PharmacyUniversity of FloridaGainesvilleFloridaUSA
| | - Daohong Zhou
- Department of Pharmacodynamics, College of PharmacyUniversity of FloridaGainesvilleFloridaUSA
- Department of Biochemistry and Structural BiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTexasUSA
| | - Thomas C. Foster
- Department of Neuroscience, McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
- Genetics and Genomics Graduate Program, Genetics InstituteUniversity of FloridaGainesvilleFloridaUSA
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Sritawan N, Sirichoat A, Aranarochana A, Pannangrong W, Wigmore P, Welbat JU. Protective effect of metformin on methotrexate induced reduction of rat hippocampal neural stem cells and neurogenesis. Biomed Pharmacother 2023; 162:114613. [PMID: 37001179 DOI: 10.1016/j.biopha.2023.114613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/18/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023] Open
Abstract
Adult neurogenesis is a process in which the adult neural stem cells produce newborn neurons that are implicated in terms of learning and memory. Methotrexate (MTX) is a chemotherapeutic drug, which has a negative effect on memory and hippocampal neurogenesis in animal models. Metformin is an antidiabetic drug with strong antioxidant capacities. We found that metformin ameliorates MTX induced deteriorations of memory and hippocampal neurogenesis in adult rats. In this study, we focus to investigate neural stem cells, biomarkers of apoptosis, and the protein for synaptogenesis, which involves in the transcription factors of the hippocampus in rats that received metformin and MTX. Male Sprague-Dawley rats were composed of control, MTX, metformin, and MTX+metformin groups. MTX (75 mg/kg, i.v.) was given on days 7 and 14, whereas metformin (200 mg/kg, i.p.) was given for 14 days. Hippocampal neural stem cells in the subgranular zone (SGZ) were quantified using immunofluorescence staining of Sox2 and nestin. Protein expression including PSD95, Casepase-3, Bax, Bcl-2, CREB, and pCREB were determined using Western blotting. MTX-treated rats displayed decreases in Sox2 and nestin-positive cells in the SGZ. Increases in Caspase-3 and Bax levels and decreases in PSD95, Bcl-2, CREB, and pCREB protein expressions in the hippocampus were also detected. However, these negative impacts of MTX were ameliorated by co-treatment with metformin. These consequences postulate that metformin has a potential to increase neural stem cells, synaptic plasticity, decreased apoptotic activities, and transcription factors, resulting in upregulation of hippocampal neurogenesis in MTX-treated rats.
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Affiliation(s)
- Nataya Sritawan
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Apiwat Sirichoat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Anusara Aranarochana
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Wanassanan Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Peter Wigmore
- School of Life Sciences, Medical School, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
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Durmus M, Özogul Y, Ozyurt G, Ucar Y, Kosker AR, Yazgan H, Ibrahim SA, Özogul F. Effects of citrus essential oils on the oxidative stability of microencapsulated fish oil by spray-drying. Front Nutr 2023; 9:978130. [PMID: 36687678 PMCID: PMC9852853 DOI: 10.3389/fnut.2022.978130] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 12/13/2022] [Indexed: 01/09/2023] Open
Abstract
The effects of citrus essential oils (orange, lemon, mandarin, and grapefruit) on the oxidative stability of microencapsulated fish oil by spray-drying were evaluated. The encapsulation efficiency of microcapsules was in the range of 42.25 and 62.43%. Twelve active substances were determined as major volatile components of citrus essential oils. The highest phenolic content was obtained from grapefruit essential oil (44.32 mg GAE/g). Lower values of thiobarbituric acid reactive substances (TBARs) were obtained for microencapsulated fish oils with essential oils compared to control. At the end of storage, the highest peroxide value (PV) was observed in the control group (25.30 meq O2/kg oil) while the lowest value was in the lemon (13.40 meq O2/kg oil) and orange group (13.91 meq O2/kg oil). The results of this study showed that citrus essential oils can be used to improve the oxidative stability of fish oil microcapsules.
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Affiliation(s)
- Mustafa Durmus
- Department of Seafood and Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Turkey
| | - Yesim Özogul
- Department of Seafood and Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Turkey
| | - Gulsun Ozyurt
- Department of Seafood and Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Turkey
| | - Yilmaz Ucar
- Fatsa Faculty of Marine Science, Ordu University, Ordu, Turkey
| | - Ali Riza Kosker
- Department of Seafood and Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Turkey
| | - Hatice Yazgan
- Department of Food Hygiene and Technology, Faculty of Ceyhan Veterinary Medicine, Çukurova University, Adana, Turkey
| | - Salam A. Ibrahim
- Food Microbiology and Biotechnology Laboratory, North Carolina Agricultural and Technical State University, Greensboro, NC, United States,*Correspondence: Salam A. Ibrahim ✉
| | - Fatih Özogul
- Department of Seafood and Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Turkey
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Bradley-Garcia M, Winocur G, Sekeres MJ. Episodic Memory and Recollection Network Disruptions Following Chemotherapy Treatment in Breast Cancer Survivors: A Review of Neuroimaging Findings. Cancers (Basel) 2022; 14:cancers14194752. [PMID: 36230678 PMCID: PMC9563268 DOI: 10.3390/cancers14194752] [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: 08/03/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Memory disturbances are amongst the most common and disruptive symptoms of chemotherapy-related cognitive impairment. Chemotherapy treatments commonly cause neurotoxicity within the hippocampus, creating a vulnerability to memory impairment. Most clinical assessments of long-term memory in breast cancer survivors assess basic verbal and visual memory processing, and do not capture the complexities of everyday event memories, including episodic and autobiographical memory. This review focuses on structural and functional neuroimaging studies identifying disruptions in the hippocampus and recollection network, and related episodic memory impairments in chemotherapy-treated breast cancer survivors. We argue for the need to better characterize memory dysfunction following chemotherapy treatments. Given the importance of episodic and autobiographical memory to a person’s personal history and quality of life, an under-appreciation of how this memory domain is impacted by standard cancer treatments potentially diminishes the negative experiences of breast cancer survivors, and neglects cognitive problems that could benefit from intervention strategies. Abstract Long-term memory disturbances are amongst the most common and disruptive cognitive symptoms experienced by breast cancer survivors following chemotherapy. To date, most clinical assessments of long-term memory dysfunction in breast cancer survivors have utilized basic verbal and visual memory tasks that do not capture the complexities of everyday event memories. Complex event memories, including episodic memory and autobiographical memory, critically rely on hippocampal processing for encoding and retrieval. Systemic chemotherapy treatments used in breast cancer commonly cause neurotoxicity within the hippocampus, thereby creating a vulnerability to memory impairment. We review structural and functional neuroimaging studies that have identified disruptions in the recollection network and related episodic memory impairments in chemotherapy-treated breast cancer survivors, and argue for the need to better characterize hippocampally mediated memory dysfunction following chemotherapy treatments. Given the importance of autobiographical memory for a person’s sense of identity, ability to plan for the future, and general functioning, under-appreciation of how this type of memory is impacted by cancer treatment can lead to overlooking or minimizing the negative experiences of breast cancer survivors, and neglecting a cognitive domain that may benefit from intervention strategies.
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Affiliation(s)
| | - Gordon Winocur
- Rotman Research Institute, Baycrest Centre, Toronto, ON M6A 2E1, Canada
- Department of Psychology, Department of Psychiatry, University of Toronto, Toronto, ON M5S 3G3, Canada
- Department of Psychology, Trent University, Peterborough, ON K9J 7B8, Canada
| | - Melanie J. Sekeres
- School of Psychology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
- Correspondence:
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Onzi GR, D'Agustini N, Garcia SC, Guterres SS, Pohlmann PR, Rosa DD, Pohlmann AR. Chemobrain in Breast Cancer: Mechanisms, Clinical Manifestations, and Potential Interventions. Drug Saf 2022; 45:601-621. [PMID: 35606623 DOI: 10.1007/s40264-022-01182-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2022] [Indexed: 11/26/2022]
Abstract
Among the potential adverse effects of breast cancer treatment, chemotherapy-related cognitive impairment (CRCI) has gained increased attention in the past years. In this review, we provide an overview of the literature regarding CRCI in breast cancer, focusing on three main aspects. The first aspect relates to the molecular mechanisms linking individual drugs commonly used to treat breast cancer and CRCI, which include oxidative stress and inflammation, reduced neurogenesis, reduced levels of specific neurotransmitters, alterations in neuronal dendrites and spines, and impairment in myelin production. The second aspect is related to the clinical characteristics of CRCI in patients with breast cancer treated with different drug combinations. Data suggest the incidence rates of CRCI in breast cancer vary considerably, and may affect more than 50% of treated patients. Both chemotherapy regimens with or without anthracyclines have been associated with CRCI manifestations. While cross-sectional studies suggest the presence of symptoms up to 20 years after treatment, longitudinal studies confirm cognitive impairments lasting for at most 4 years after the end of chemotherapy. The third and final aspect is related to possible therapeutic interventions. Although there is still no standard of care to treat CRCI, several pharmacological and non-pharmacological approaches have shown interesting results. In summary, even if cognitive impairments derived from chemotherapy resolve with time, awareness of CRCI is crucial to provide patients with a better understanding of the syndrome and to offer them the best care directed at improving quality of life.
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Affiliation(s)
- Giovana R Onzi
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.
| | - Nathalia D'Agustini
- Programa de Pós-Graduação em Patologia da Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Solange C Garcia
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Silvia S Guterres
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Paula R Pohlmann
- Lombardi Comprehensive Cancer Center, MedStar Georgetown University Hospital, Washington, DC, USA
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Daniela D Rosa
- Programa de Pós-Graduação em Patologia da Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
- Serviço de Oncologia, Hospital Moinhos de Vento, Porto Alegre, RS, Brazil
| | - Adriana R Pohlmann
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.
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Sritawan N, Suwannakot K, Naewla S, Chaisawang P, Aranarochana A, Sirichoat A, Pannangrong W, Wigmore P, Welbat JU. Effect of metformin treatment on memory and hippocampal neurogenesis decline correlated with oxidative stress induced by methotrexate in rats. Biomed Pharmacother 2021; 144:112280. [PMID: 34628167 DOI: 10.1016/j.biopha.2021.112280] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 01/18/2023] Open
Abstract
Metformin is currently used as a first-line drug to treat patients with type 2 diabetes. Previous studies have demonstrated that metformin has antioxidant properties and reduces neuroinflammation and hippocampal neuronal cell loss, which eventually improves memory. Methotrexate (MTX) is an antimetabolite chemotherapeutic agent reported to activate cognitive impairment found in many patients. Moreover, MTX negatively affects the spatial working memory, related to neurogenesis reduction in animal models. Therefore, the present study aimed to investigate the antioxidant effect of metformin on the reduction of memory and neurogenesis caused by MTX. Male Sprague-Dawley rats were divided into four groups: control, MTX, metformin, and MTX+metformin. MTX (75 mg/kg, i.v.) was administered on days 7 and 14. Rats were administered metformin (200 mg/kg, i.p.) for 14 days. Memory was determined using novel object location (NOL) and novel object recognition (NOR) tests. Furthermore, cell cycle arrest was quantified by p21 immunostaining. Levels of neuronal protein expression, scavenging enzymes activity, and malondialdehyde (MDA) level changes in the hippocampus and prefrontal cortex were investigated. Rats receiving only MTX showed memory impairment. Decreases in scavenging enzyme activity and BDNF, DCX, and Nrf2 protein expressions levels were detected in the MTX-treated rats. In addition, MTX significantly increased p21-positive cell numbers and MDA levels. However, these adverse MTX effects were counteracted by co-administration with metformin. These results demonstrate that metformin can improve memory impairments, increase BDNF, DCX and Nrf2 protein expressions and antioxidant capacities, and decrease MDA levels in MTX-treated rats.
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Affiliation(s)
- Nataya Sritawan
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Kornrawee Suwannakot
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Salinee Naewla
- Faculty of Nursing, Ratchathani University, Ubon Ratchathani 34000, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Pornthip Chaisawang
- Faculty of Medical Science, Nakhonratchasima College, Nakhon Ratchasima 30000, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Anusara Aranarochana
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Apiwat Sirichoat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Wanassanan Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Peter Wigmore
- Queen's Medical Centre, School of Life Sciences, Medical School, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neurogenesis Research Group, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
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Sekeres MJ, Bradley-Garcia M, Martinez-Canabal A, Winocur G. Chemotherapy-Induced Cognitive Impairment and Hippocampal Neurogenesis: A Review of Physiological Mechanisms and Interventions. Int J Mol Sci 2021; 22:12697. [PMID: 34884513 PMCID: PMC8657487 DOI: 10.3390/ijms222312697] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/15/2021] [Accepted: 11/20/2021] [Indexed: 12/16/2022] Open
Abstract
A wide range of cognitive deficits, including memory loss associated with hippocampal dysfunction, have been widely reported in cancer survivors who received chemotherapy. Changes in both white matter and gray matter volume have been observed following chemotherapy treatment, with reduced volume in the medial temporal lobe thought to be due in part to reductions in hippocampal neurogenesis. Pre-clinical rodent models confirm that common chemotherapeutic agents used to treat various forms of non-CNS cancers reduce rates of hippocampal neurogenesis and impair performance on hippocampally-mediated learning and memory tasks. We review the pre-clinical rodent literature to identify how various chemotherapeutic drugs affect hippocampal neurogenesis and induce cognitive impairment. We also review factors such as physical exercise and environmental stimulation that may protect against chemotherapy-induced neurogenic suppression and hippocampal neurotoxicity. Finally, we review pharmacological interventions that target the hippocampus and are designed to prevent or reduce the cognitive and neurotoxic side effects of chemotherapy.
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Affiliation(s)
| | | | - Alonso Martinez-Canabal
- Cell Biology Department, National Autonomous University of Mexico, Mexico City 04510, Mexico;
| | - Gordon Winocur
- Rotman Research Institute, Baycrest Center, Toronto, ON M6A 2E1, Canada;
- Department of Psychology, Department of Psychiatry, University of Toronto, Toronto, ON M5S 3G3, Canada
- Department of Psychology, Trent University, Peterborough, ON K9J 7B8, Canada
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9
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Miyata S, Kashio T, Tsuchiya K, Mitsui S. Motopsin deficiency imparts partial insensitivity to doxorubicin-induced hippocampal impairments in adult mice. Neurosci Lett 2021; 763:136181. [PMID: 34416345 DOI: 10.1016/j.neulet.2021.136181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 08/12/2021] [Accepted: 08/14/2021] [Indexed: 10/20/2022]
Abstract
Motopsin is a serine protease that plays a crucial role in synaptic functions. Loss of motopsin function causes severe intellectual disability in humans. In this study, we evaluated the role of motopsin in the neuropathological development of cognitive impairments following chemotherapy, also known as chemobrain. Motopsin knockout (KO) and wild-type (WT) mice were intravenously injected with doxorubicin (Dox) or saline four times every 8 days and were evaluated for open field, novel object recognition, and passive avoidance tests. Parvalbumin-positive neurons in the hippocampus were immunohistochemically analyzed. Dox administration significantly decreased the total distance in the open field test in both WT and motopsin KO mice without affecting the duration spent in the center square. A significant interaction between the genotype and drug treatment was detected in the recognition index (the rate to investigate a novel object) in the novel object recognition test, although Dox treatment did not affect the total investigation time. Additionally, Dox treatment significantly decreased the recognition index in WT mice, whereas it tended to increase the recognition index in motopsin KO mice. Dox treatment did not affect the latency to enter a dark compartment in either WT or motopsin KO mice in the passive avoidance test. Interestingly, Dox treatment increased the parvalbumin-positive neurons in the stratum oriens of the hippocampus CA1 region of only WT mice, not motopsin KO mice. Our data suggest that motopsin deficiency imparted partial insensitivity to Dox-induced hippocampal impairments. Alternatively, motopsin may contribute to the neuropathology of chemobrain.
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Affiliation(s)
- Shiori Miyata
- Department of Rehabilitation Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa, Maebashi, Gunma 371-8514, Japan
| | - Taiki Kashio
- Department of Rehabilitation Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa, Maebashi, Gunma 371-8514, Japan
| | - Kenji Tsuchiya
- Department of Rehabilitation Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa, Maebashi, Gunma 371-8514, Japan
| | - Shinichi Mitsui
- Department of Rehabilitation Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa, Maebashi, Gunma 371-8514, Japan.
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10
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Yoo KH, Tang JJ, Rashid MA, Cho CH, Corujo-Ramirez A, Choi J, Bae MG, Brogren D, Hawse JR, Hou X, Weroha SJ, Oliveros A, Kirkeby LA, Baur JA, Jang MH. Nicotinamide Mononucleotide Prevents Cisplatin-Induced Cognitive Impairments. Cancer Res 2021; 81:3727-3737. [PMID: 33771896 PMCID: PMC8277702 DOI: 10.1158/0008-5472.can-20-3290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/17/2021] [Accepted: 03/22/2021] [Indexed: 12/18/2022]
Abstract
Chemotherapy-induced cognitive impairment (CICI) is often reported as a neurotoxic side effect of chemotherapy. Although CICI has emerged as a significant medical problem, meaningful treatments are not currently available due to a lack of mechanistic understanding underlying CICI pathophysiology. Using the platinum-based chemotherapy cisplatin as a model for CICI, we show here that cisplatin suppresses nicotinamide adenine dinucleotide (NAD+) levels in the adult female mouse brain in vivo and in human cortical neurons derived from induced pluripotent stem cells in vitro. Increasing NAD+ levels through nicotinamide mononucleotide (NMN) administration prevented cisplatin-induced abnormalities in neural progenitor proliferation, neuronal morphogenesis, and cognitive function without affecting tumor growth and antitumor efficacy of cisplatin. Mechanistically, cisplatin inhibited expression of the NAD+ biosynthesis rate-limiting enzyme nicotinamide phosphoribosyl transferase (Nampt). Selective restoration of Nampt expression in adult-born neurons was sufficient to prevent cisplatin-induced defects in dendrite morphogenesis and memory function. Taken together, our findings suggest that aberrant Nampt-mediated NAD+ metabolic pathways may be a key contributor in cisplatin-induced neurogenic impairments, thus causally leading to memory dysfunction. Therefore, increasing NAD+ levels could represent a promising and safe therapeutic strategy for cisplatin-related neurotoxicity. SIGNIFICANCE: Increasing NAD+ through NMN supplementation offers a potential therapeutic strategy to safely prevent cisplatin-induced cognitive impairments, thus providing hope for improved quality of life in cancer survivors. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/13/3727/F1.large.jpg.
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Affiliation(s)
- Ki Hyun Yoo
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Jason J Tang
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | | | - Chang Hoon Cho
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Ana Corujo-Ramirez
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
- The Mayo Clinic Post-Baccalaureate Research Education Program (PREP), Rochester, Minnesota
| | - Jonghoon Choi
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Mun Gyeong Bae
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Danielle Brogren
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - John R Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Xiaonan Hou
- Department of Oncology, Division of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - S John Weroha
- Department of Oncology, Division of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - Alfredo Oliveros
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Lindsey A Kirkeby
- Center for Regenerative Medicine Biotrust, Mayo Clinic, Rochester, Minnesota
| | - Joseph A Baur
- Department of Physiology and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mi-Hyeon Jang
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota.
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
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11
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Cancer Chemotherapy Related Cognitive Impairment and the Impact of the Alzheimer's Disease Risk Factor APOE. Cancers (Basel) 2020; 12:cancers12123842. [PMID: 33352780 PMCID: PMC7766535 DOI: 10.3390/cancers12123842] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 12/16/2022] Open
Abstract
Cancer related cognitive impairment (CRCI) is a serious impairment to maintaining quality of life in cancer survivors. Cancer chemotherapy contributes to this condition through several potential mechanisms, including damage to the blood brain barrier, increases in oxidative stress and inflammation in the brain, and impaired neurogenesis, each of which lead to neuronal dysfunction. A genetic predisposition to CRCI is the E4 allele of the Apolipoprotein E gene (APOE), which is also the strongest genetic risk factor for Alzheimer's disease. In normal brains, APOE performs essential lipid transport functions. The APOE4 isoform has been linked to altered lipid binding, increased oxidative stress and inflammation, reduced turnover of neural progenitor cells, and impairment of the blood brain barrier. As chemotherapy also affects these processes, the influence of APOE4 on CRCI takes on great significance. This review outlines the main areas where APOE genotype could play a role in CRCI. Potential therapeutics based on APOE biology could mitigate these detrimental cognitive effects for those receiving chemotherapy, emphasizing that the APOE genotype could help in developing personalized cancer treatment regimens.
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12
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Martínez-Martínez MI, Alegre-Martínez A, Cauli O. Omega-3 Long-Chain Polyunsaturated Fatty Acids Intake in Children: The Role of Family-Related Social Determinants. Nutrients 2020; 12:E3455. [PMID: 33187190 PMCID: PMC7697719 DOI: 10.3390/nu12113455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/17/2022] Open
Abstract
Omega-3 long-chain polyunsaturated fatty acids play a central role in neuronal growth and in the development of the human brain, since they are essential elements which depend on intake through diet to ensure an adequate amount. Fish and seafood are the main dietary sources of these fatty acids in Spain and in other countries. In order to assess the effect of the intake of common foods containing high amounts of omega-3 polyunsaturated fatty acids, a food frequency questionnaire was administered to parents of children and adolescents attending a primary school in Valencia (Spain), and the intake of dietary omega-3 such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) was estimated based on their fish/seafood consumption. Low frequencies of intake were significantly (p < 0.05) lower for many types of fish/seafood in children compared to adolescents. 27.5% of children/adolescents did not eat lean fish or other types (19.8% of the sample did not eat fatty fish, and 71.8% did not eat smoked fish) and 20-60% of the sample consumed seafood only once-three times a month, leading to a reduced estimated intake of EPA+DHA below that recommended for both groups by public health agencies. Social aspects, such as the type of work done by mothers and their educational levels are significant factors (p < 0.05 in both cases) affecting children's/adolescents' intake of DHA+EPA. Dietary interventions to increase the consumption of fish and seafood are strongly advised, and health promotion strategies should be aimed at the family level and fight against gender disparities.
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Affiliation(s)
- María Isabel Martínez-Martínez
- Frailty and Cognitive Impairment Organized Group (FROG), University of Valencia, 46010 Valencia, Spain;
- Department of Nursing, University of Valencia, 46013 Valencia, Spain
| | - Antoni Alegre-Martínez
- Department of Biomedical Sciences, Cardenal Herrera University CEU, Avenida Seminario, s/n, 46113 Moncada, Valencia, Spain;
| | - Omar Cauli
- Frailty and Cognitive Impairment Organized Group (FROG), University of Valencia, 46010 Valencia, Spain;
- Department of Nursing, University of Valencia, 46013 Valencia, Spain
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13
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Li W, Zhao J, Ding K, Chao HH, Li CSR, Cheng H, Shen L. Catechol-O-Methyltransferase Gene Polymorphisms and the Risk of Chemotherapy-Induced Prospective Memory Impairment in Breast Cancer Patients with Varying Tumor Hormonal Receptor Expression. Med Sci Monit 2020; 26:e923567. [PMID: 32985495 PMCID: PMC7531203 DOI: 10.12659/msm.923567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background Existing research evidence indicates that breast cancer patients have different degrees of cognitive dysfunction after chemotherapy, and polymorphisms in 3 genes (catechol-O-methyltransferase, COMT; apolipoprotein E, APOE; and brain-derived neurotrophic factor, BDNF) have been associated with cognitive impairment. However, the role of these 3 gene polymorphisms in modulating cognitive impairment in breast cancer survivors with varying hormonal receptor expression is not clear at present. To explore the effects of genetic polymorphisms in BDNF, APOE, and COMT on the regulation of prospective memory impairments induced by chemotherapy in breast cancer patients with various expression levels of estrogen receptor (ER) and progesterone receptor (PR). Material/Methods A total of 232 patients with breast cancer (113 with ER−/PR− and 119 with ER+/PR+) were evaluated before and after chemotherapy for cognitive function, including prospective memory. Following previously published sequencing procedures, we assessed 6 single-nucleotide polymorphisms (SNPs), including BDNF (rs6265), APOE (rs429358, rs7412), and COMT (rs165599, rs4680, rs737865). Results The patients showed poorer prospective memory scores after chemotherapy than before chemotherapy. Furthermore, the ER−/PR− group showed poorer event-based prospective memory (EBPM) scores than the ER+/PR+ group (z=−7.831, p<0.01) after chemotherapy. The patients with the COMT rs737865G/G genotype, compared with those with the A/A and A/G genotypes, showed a linear EBPM performance (β=1.499, 95% confidence interval (CI)=1.017~2.211) and were less likely to have memory impairment. In contrast, APOE and BDNF polymorphisms did not influence cognitive performance. Conclusions The patterns of hormonal receptor expression may be related to prospective memory impairments induced by chemotherapy in breast cancer patients. Furthermore, the COMT polymorphism (rs737865) was linearly related to the extent of deficits in EBPM and may represent a potential genetic marker of risk for cognitive deficits triggered by chemotherapy in patients with breast cancer.
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Affiliation(s)
- Wen Li
- Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, China (mainland)
| | - Jingjing Zhao
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Ke Ding
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Herta H Chao
- Cancer Center, VA Connecticut Healthcare System, New Haven, CT, USA
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Huaidong Cheng
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Li Shen
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
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14
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Sritawan N, Prajit R, Chaisawang P, Sirichoat A, Pannangrong W, Wigmore P, Welbat JU. Metformin alleviates memory and hippocampal neurogenesis decline induced by methotrexate chemotherapy in a rat model. Biomed Pharmacother 2020; 131:110651. [PMID: 32841896 DOI: 10.1016/j.biopha.2020.110651] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/29/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022] Open
Abstract
Methotrexate (MTX) is a chemotherapeutic drug commonly used to treat cancers that has an adverse effect on patients' cognition. Metformin is a primary treatment for type 2 diabetes mellitus that can pass through the blood-brain barrier. Metformin has neuroprotective actions, which can improve memory. In the present study, we examined the ability of metformin in MTX chemotherapy-generated cognitive and hippocampal neurogenesis alterations. Male Sprague-Dawley rats were allocated into control, MTX, metformin, preventive, and throughout groups. MTX (75 mg/kg/day) was given intravenously on days 7 and 14 of the study. Metformin (200 mg/kg/day) was injected intraperitoneally for 14 days. Some of the MTX-treated rats received co-treatment with metformin once a day for either 14 (preventive) or 28 days (throughout). After treatment, memory ability was evaluated using novel object location and novel object recognition tests. Ki67 (proliferating cells), BrdU (survival cells), and doublecortin (immature neurons, DCX) positive cells in the subgranular zone (SGZ) of the hippocampal dentate gyrus were quantified. We found that reductions of cognition, the number of proliferating and survival cells and immature neurons in the SGZ were ameliorated in the co-treatment groups, which suggests that metformin can prevent memory and hippocampal neurogenesis impairments induced by MTX in adult rats.
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Affiliation(s)
- Nataya Sritawan
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Ram Prajit
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Pornthip Chaisawang
- Faculty of Medical Science, Nakhonratchasima College, Nakhon Ratchasima 30000, Thailand.
| | - Apiwat Sirichoat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Wanassanan Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Peter Wigmore
- School of Life Sciences, Medical School, Queen's Medical Centre, Nottingham University, Nottingham NG7 2RD, UK.
| | - Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Neuroscience Research and Development Group, Khon Kaen University, Khon Kaen 40002, Thailand.
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15
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Nguyen LD, Ehrlich BE. Cellular mechanisms and treatments for chemobrain: insight from aging and neurodegenerative diseases. EMBO Mol Med 2020; 12:e12075. [PMID: 32346964 PMCID: PMC7278555 DOI: 10.15252/emmm.202012075] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/09/2020] [Accepted: 04/01/2020] [Indexed: 12/22/2022] Open
Abstract
Chemotherapy is a life-saving treatment for cancer patients, but also causes long-term cognitive impairment, or "chemobrain", in survivors. However, several challenges, including imprecise diagnosis criteria, multiple confounding factors, and unclear and heterogeneous molecular mechanisms, impede effective investigation of preventions and treatments for chemobrain. With the rapid increase in the number of cancer survivors, chemobrain is an urgent but unmet clinical need. Here, we leverage the extensive knowledge in various fields of neuroscience to gain insights into the mechanisms for chemobrain. We start by outlining why the post-mitotic adult brain is particularly vulnerable to chemotherapy. Next, through drawing comparisons with normal aging, Alzheimer's disease, and traumatic brain injury, we identify universal cellular mechanisms that may underlie the cognitive deficits in chemobrain. We further identify existing neurological drugs targeting these cellular mechanisms that can be repurposed as treatments for chemobrain, some of which were already shown to be effective in animal models. Finally, we briefly describe future steps to further advance our understanding of chemobrain and facilitate the development of effective preventions and treatments.
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Affiliation(s)
- Lien D Nguyen
- Department of Pharmacology and Interdepartmental Neuroscience ProgramYale UniversityNew HavenCTUSA
| | - Barbara E Ehrlich
- Department of Pharmacology and Interdepartmental Neuroscience ProgramYale UniversityNew HavenCTUSA
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16
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Licht T, Sasson E, Bell B, Grunewald M, Kumar S, Kreisel T, Ben-Zvi A, Keshet E. Hippocampal neural stem cells facilitate access from circulation via apical cytoplasmic processes. eLife 2020; 9:52134. [PMID: 32496193 PMCID: PMC7297534 DOI: 10.7554/elife.52134] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 06/03/2020] [Indexed: 12/13/2022] Open
Abstract
Blood vessels (BVs) are considered an integral component of neural stem cells (NSCs) niches. NSCs in the dentate gyrus (DG(have enigmatic elaborated apical cellular processes that are associated with BVs. Whether this contact serves as a mechanism for delivering circulating molecules is not known. Here we uncovered a previously unrecognized communication route allowing exclusive direct access of blood-borne substances to hippocampal NSCs. BBB-impermeable fluorescent tracer injected transcardially to mice is selectively uptaken by DG NSCs within a minute, via the vessel-associated apical processes. These processes, measured >30 nm in diameter, establish direct membrane-to-membrane contact with endothelial cells in specialized areas of irregular endothelial basement membrane and enriched with vesicular activity. Doxorubicin, a brain-impermeable chemotherapeutic agent, is also readily and selectively uptaken by NSCs and reduces their proliferation, which might explain its problematic anti-neurogenic or cognitive side-effect. The newly-discovered NSC-BV communication route explains how circulatory neurogenic mediators are 'sensed' by NSCs.
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Affiliation(s)
- Tamar Licht
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel.,Department of Medical Neurobiology, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Esther Sasson
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Batia Bell
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Myriam Grunewald
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Saran Kumar
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Tirzah Kreisel
- Edmond and Lily Safra Center for Brain Sciences (ELSC), The Hebrew University Givat Ram, Jerusalem, Israel
| | - Ayal Ben-Zvi
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Eli Keshet
- Department of Developmental Biology and Cancer Research, Faculty of Medicine, the Hebrew University, Jerusalem, Israel
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17
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Salman A, El Beltagy M, Shatarat A, Alzghoul L, Oweis L, Al Antary N, Al Fegie S, Mohsen M, Salman S. Atomoxetine improves hippocampal cell proliferation but not memory in Doxorubicin-treated adult male rats. Vet Med Sci 2020; 6:1017-1024. [PMID: 32342640 PMCID: PMC7738722 DOI: 10.1002/vms3.276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 02/26/2020] [Accepted: 04/02/2020] [Indexed: 12/20/2022] Open
Abstract
Atomoxetine (ATX) is a noradrenaline reuptake inhibitor used to treat Attention deficit hyperactive disorder (ADHD), or improve cognition in normal subjects. Cancer patients treated with systemic adjuvant chemotherapy have described experiencing deterioration in cognition. Doxorubicin (DOX, Adriamycin) is one of the anthracycline families used in chemotherapy, which has a deteriorating effect on both cognition and proliferation. The cognitive effects of ATX require inputs from the hippocampus. The aim of this study was to examine spatial memory and proliferation in the subgranular zone (SGZ) of the DG in adult Lister Hooded rats treated either alone or with a combination of Atomoxetine (30 mg kg−1 day−1, six i.p. doses, one injection every other day) and Doxorubicin (DOX) ( 2 mg kg−1 day−1, six i.p. doses, one injection every other day). Spatial memory was tested using the Novel location recognition (NLR) test, and proliferation of hippocampal cells was quantified using immunohistochemistry for the proliferative marker Ki67. Results showed that ATX treatment has improved the NLR task and increased cell proliferation in the SGZ of the DG, compared with saline‐treated controls. Animals treated with DOX only showed deficits in NLR task, and co‐administration of ATX along with DOX did not improve their performance. DOX chemotherapy caused a significant reduction in the number of proliferating cells in the SGZ of the DG compared with saline‐treated controls. This reduction was reversed by co‐administration of ATX. The above findings suggest that DOX can negatively affect both cell proliferation and memory and ATX co‐administration improves proliferation, but not memory in the adult male rat hippocampus.
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Affiliation(s)
- Ahmed Salman
- Faculty of Medicine, The University of Jordan, Amman, Jordan.,Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt
| | - Maha El Beltagy
- Faculty of Medicine, The University of Jordan, Amman, Jordan.,Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt
| | - Amjad Shatarat
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Loai Alzghoul
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Liyana Oweis
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Nada Al Antary
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Safa Al Fegie
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Maram Mohsen
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Salma Salman
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
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18
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Gaynor AM, Pergolizzi D, Alici Y, Ryan E, McNeal K, Ahles TA, Root JC. Impact of transcranial direct current stimulation on sustained attention in breast cancer survivors: Evidence for feasibility, tolerability, and initial efficacy. Brain Stimul 2020; 13:1108-1116. [PMID: 32353419 DOI: 10.1016/j.brs.2020.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 02/26/2020] [Accepted: 04/19/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND A significant subset of breast cancer survivors experience cognitive difficulties in attention and memory, which persist for years following treatment. Transcranial direct current stimulation (tDCS) has been shown to be effective in improving working memory, attention, processing speed, and other cognitive functions in both healthy and clinical populations. To date, no studies have examined tDCS for rehabilitation of cancer-related cognitive dysfunction. OBJECTIVE/HYPOTHESIS We aimed to provide preliminary evidence for feasibility, tolerability, acceptability, and efficacy of tDCS in improving performance on a measure of sustained attention. METHODS In a within-subjects design, 16 breast cancer survivors underwent 2 consecutive days of active tDCS over the prefrontal cortex, and 2 days of sham tDCS, counterbalanced for order of stimulation condition, while performing a continuous performance test. RESULTS Stimulation was feasible and tolerable, with 89% of participants completing all sessions, and none reporting more than mild to moderate discomfort. Analyses of efficacy showed that during active stimulation, participants had significantly lower standard errors of reaction times overall, indicating better sustained attention ability, as compared to sham stimulation (p < 0.05). Furthermore, the effect of stimulation on standard errors of reaction times differed by inter-stimulus interval (ISI): for 1 and 2 s ISIs, there was no significant difference in performance between sham and active tDCS conditions, but for 4 s ISIs, stimulation improved variability in response times relative to sham (p < 0.05). CONCLUSIONS Results suggest that tDCS is feasible, tolerable, and may be an effective intervention to improve sustained attention difficulties in survivors with cancer-related cognitive dysfunction.
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Affiliation(s)
- Alexandra M Gaynor
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA.
| | - Denise Pergolizzi
- Universitat Internacional de Catalunya, School of Medicine and Health Sciences, Barcelona, Spain
| | - Yesne Alici
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA
| | - Elizabeth Ryan
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA
| | - Katrazyna McNeal
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA
| | - Tim A Ahles
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA
| | - James C Root
- Memorial Sloan Kettering Cancer Center, Department of Psychiatry and Behavioral Sciences, New York, NY, USA
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19
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Uçar Y. Antioxidant Effect of Nanoemulsions Based on Citrus Peel Essential Oils: Prevention of Lipid Oxidation in Trout. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.201900405] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yılmaz Uçar
- Fatsa Faculty of Marine SciencesOrdu University Ordu 52400 Turkey
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20
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Peukert X, Steindorf K, Schagen SB, Runz A, Meyer P, Zimmer P. Hippocampus-Related Cognitive and Affective Impairments in Patients With Breast Cancer-A Systematic Review. Front Oncol 2020; 10:147. [PMID: 32154164 PMCID: PMC7046686 DOI: 10.3389/fonc.2020.00147] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/27/2020] [Indexed: 01/16/2023] Open
Abstract
Background: Although improvements in medical treatment lead to a steadily rising survival rate of breast cancer patients (BCP), it is associated with a decrease in cognitive and affective function. The hippocampus, a brain region with a high influence on both cognitive and affective function, is increasingly becoming the focus of current research because of its high vulnerability to adverse direct (chemotherapeutic agents, endocrine therapeutic agents, and radiation) or indirect (stress and other psycho-social factors) treatment-related effects. Methods: This systematic review analyses current data from literature combining hippocampus-related brain changes due to breast cancer treatment with associated cancer-related cognitive and affective impairments (CRCI/CRAI). The seven studies that met the inclusion criteria consisted of six cross-sectional studies and one longitudinal study. Results: The study results indicate hippocampal differences across all types of treatment. Those differences include volume loss, deformation, and changes in functional connectivity. They are associated with CRCI, revealing executive function as well as working memory, episodic memory, and prospective memory as the most affected domains. Although an interaction between hippocampus-related brain changes, CRCI, and CRAI can be hypothesized, CRAI are less reflected in current research. Discussion: More research including longitudinal assessments with better overall methodology is needed to fully understand the interaction between hippocampal alterations and both CRCI and CRAI due to breast cancer treatment.
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Affiliation(s)
- Xenia Peukert
- Division of Physical Activity, Prevention and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,SRH Hochschule Heidelberg, Heidelberg, Germany
| | - Karen Steindorf
- Division of Physical Activity, Prevention and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,National Center of Tumor Diseases, Heidelberg, Germany
| | - Sanne B Schagen
- Division of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, Netherlands.,Department of Psychology, University of Amsterdam, Amsterdam, Netherlands
| | - Adrian Runz
- SRH Hochschule Heidelberg, Heidelberg, Germany
| | | | - Philipp Zimmer
- Division of Physical Activity, Prevention and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Performance and Health (Sports Medicine), Institute for Sports and Sport Science, Technical University Dortmund, Dortmund, Germany
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21
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Tetrahydroxystilbene Glucoside Ameliorates Infrasound-Induced Central Nervous System (CNS) Injury by Improving Antioxidant and Anti-Inflammatory Capacity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6576718. [PMID: 31998440 PMCID: PMC6977337 DOI: 10.1155/2020/6576718] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/27/2019] [Accepted: 12/06/2019] [Indexed: 11/17/2022]
Abstract
Background Infrasound is a major threat to global health by causing injuries of the central nervous system (CNS). However, there remains no effective therapeutic agent for preventing infrasound-caused CNS injury. 2,3,5,4'-Tetrahydroxystilbene-2-O-β-D-glycoside (THSG) exerts protective function against CNS injuries and may have beneficial effects on infrasound-induced CNS impairment. Methods A mouse model with CNS (oxidative stress-induced inflammation and neuronal apoptosis) injuries was established when the mouse was exposed to the infrasound of 16 Hz at 130 dB for 2 h each day and the duration of treatment was 8 d. The mice were divided into the control (CG, healthy mice), the model (MG, model mice), and the THSG (EG, experimental group, model mice treated with THSG) groups. The learning and memory impairments caused by infrasound were examined using a Morris water maze test. Lipid profiles, antioxidant biomarkers, and inflammatory cytokines in hippocampus tissue were measured by using corresponding ELISA kits. Meanwhile, BCL-2/BAX/caspase-3 signaling pathway was measured in the hippocampi and prefrontal cortex of the mouse brain using real-time qPCR and Western blot. Nissl's stain was used to measure neuronal necrosis in the hippocampi and prefrontal cortex of the mouse brain. Results THSG significantly ameliorated the learning and memory impairments caused by infrasound. On the other hand, THSG improved lipid profiles, increased antioxidant properties by affecting the levels of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA), and displayed anti-inflammatory action via the downregulation of IL- (interleukin-) 6, IL-8, IL-10, TNF- (tumor necrosis factor-) α, and hs-CRP (high-sensitivity C-reactive protein) in the hippocampal tissues of the mouse model (P < 0.05). Additionally, Nissl's stain showed that THSG inhibited infrasound-induced neuronal necrosis in the hippocampi and prefrontal cortex. Besides, THSG exerted antiapoptosis function by upregulating the level of Bcl-2 and downregulating the levels of BAX and caspase-3 in the hippocampi. Conclusion THSG may be an effective anti-infrasound drug against CNS injury by improving antioxidant, anti-inflammatory, antiapoptosis, and antinecrosis capacities. Further research is still needed to confirm the exact molecular mechanism.
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22
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DURMUŞ M. Fish oil for human health: omega-3 fatty acid profiles of marine seafood species. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1590/fst.21318] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Slivicki RA, Mali SS, Hohmann AG. Voluntary exercise reduces both chemotherapy-induced neuropathic nociception and deficits in hippocampal cellular proliferation in a mouse model of paclitaxel-induced peripheral neuropathy. NEUROBIOLOGY OF PAIN 2019; 6:100035. [PMID: 31528755 PMCID: PMC6739464 DOI: 10.1016/j.ynpai.2019.100035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/21/2019] [Accepted: 08/25/2019] [Indexed: 12/18/2022]
Abstract
Paclitaxel treatment did not alter voluntary running activity. Voluntary running reduced mechanical and cold allodynia induced by paclitaxel. Voluntary running reduced paclitaxel-induced deficits in hippocampal cellular proliferation.
Chemotherapy-induced peripheral neuropathy (CIPN) is a common dose-limiting side-effect of all major chemotherapeutic agents. Here, we explored efficacy of voluntary exercise as a nonpharmacological strategy for suppressing two distinct adverse side effects of chemotherapy treatment. We evaluated whether voluntary running would suppress both neuropathic pain and deficits in hippocampal cell proliferation in a mouse model of CIPN induced by the taxane chemotherapeutic agent paclitaxel. Mice were given free access to running wheels or were housed without running wheels during one of three different intervention phases: 1) during the onset (i.e. development phase) of paclitaxel-induced neuropathy, 2) prior to dosing with paclitaxel or its vehicle, or 3) following the establishment (i.e. maintenance phase) of paclitaxel-induced neuropathy. Paclitaxel treatment did not alter running wheel behavior relative to vehicle-treated animals in any study. Animals that engaged in voluntary running during the development phase of paclitaxel-induced neuropathy failed to display mechanical or cold hypersensitivities relative to sedentary control animals that did not have access to running wheels. A prior history of voluntary running delayed the onset of, but did not fully prevent, development of paclitaxel-induced neuropathic pain behavior. Voluntary running reduced already established mechanical and cold allodynia induced by paclitaxel. Importantly, voluntary running did not alter mechanical or cold responsivity in vehicle-treated animals, suggesting that the observed antinociceptive effect of exercise was dependent upon the presence of the pathological pain state. In the same animals evaluated for nociceptive responding, paclitaxel also reduced cellular proliferation but not cellular survival in the dentate gyrus of the hippocampus, as measured by immunohistochemistry for Ki67 and BrdU expression, respectively. Voluntary running abrogated paclitaxel-induced reductions in cellular proliferation to levels observed in vehicle-treated mice and also increased BrdU expression levels irrespective of chemotherapy treatment. Our studies support the hypothesis that voluntary exercise may be beneficial in suppressing both neuropathic pain and markers of hippocampal cellular function that are impacted by toxic challenge with chemotherapeutic agents.
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Affiliation(s)
- Richard A. Slivicki
- Program in Neuroscience, Indiana University, Bloomington, IN, United States
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, United States
| | - Sonali S. Mali
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, United States
| | - Andrea G. Hohmann
- Program in Neuroscience, Indiana University, Bloomington, IN, United States
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, United States
- Gill Center for Biomolecular Science, Indiana University, Bloomington, IN, United States
- Corresponding author at: Department of Psychological and Brain Sciences, Indiana University, 1101 E 10th Street, Bloomington, IN 47405-7007, United States.
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24
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Spatial memory deficits in mice induced by chemotherapeutic agents are prevented by acetylcholinesterase inhibitors. Cancer Chemother Pharmacol 2019; 84:579-589. [DOI: 10.1007/s00280-019-03881-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 05/27/2019] [Indexed: 11/25/2022]
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25
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Chemotherapy-induced cognitive impairments: A systematic review of the animal literature. Neurosci Biobehav Rev 2019; 102:382-399. [DOI: 10.1016/j.neubiorev.2019.05.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/02/2019] [Accepted: 05/01/2019] [Indexed: 12/14/2022]
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26
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Semënov MV. Adult Hippocampal Neurogenesis Is a Developmental Process Involved in Cognitive Development. Front Neurosci 2019; 13:159. [PMID: 30894797 PMCID: PMC6415654 DOI: 10.3389/fnins.2019.00159] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 02/12/2019] [Indexed: 12/26/2022] Open
Affiliation(s)
- Mikhail V Semënov
- Bedford Division, New England Geriatric Research Education and Clinical Center, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA, United States.,The Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA, United States
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Wen J, Maxwell RR, Wolf AJ, Spira M, Gulinello ME, Cole PD. Methotrexate causes persistent deficits in memory and executive function in a juvenile animal model. Neuropharmacology 2018; 139:76-84. [PMID: 29990472 PMCID: PMC6089371 DOI: 10.1016/j.neuropharm.2018.07.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 06/27/2018] [Accepted: 07/05/2018] [Indexed: 01/22/2023]
Abstract
Methotrexate is a dihydrofolate reductase inhibitor widely employed in curative treatment for children with acute lymphoblastic leukemia (ALL). However, methotrexate administration is also associated with persistent cognitive deficits among long-term childhood cancer survivors. Animal models of methotrexate-induced cognitive deficits have primarily utilized adult animals. The purpose of present study is to investigate the neurotoxicity of methotrexate in juvenile rats and its relevant mechanisms. The doses and schedule of systemic and intrathecal methotrexate, given from post-natal age 3-7 weeks, were chosen to model the effects of repeated methotrexate dosing on the developing brains of young children with ALL. This methotrexate regimen had no visible acute toxicity and no effect on growth. At 15 weeks of age (8 weeks after the last methotrexate dose) both spatial pattern memory and visual recognition memory were impaired. In addition, methotrexate-treated animals demonstrated impaired performance in the set-shifting assay, indicating decreased cognitive flexibility. Histopathological analysis demonstrated decreased cell proliferation in methotrexate-treated animals compared to controls, as well as changes in length and thickness of the corpus callosum. Moreover, methotrexate suppressed microglia activation and RANTES production. In conclusion, our study demonstrated that a clinically relevant regimen of systemic and intrathecal methotrexate induces persistent deficits in spatial pattern memory, visual recognition memory and executive function, lasting at least 8 weeks after the last injection. The mechanisms behind methotrexate-induced deficits are likely multifactorial and may relate to suppression of neurogenesis, alterations in neuroinflammation and microglial activation, and structural changes in the corpus callosum.
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Affiliation(s)
- Jing Wen
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Rochelle R Maxwell
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Alexander J Wolf
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Menachem Spira
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Maria E Gulinello
- Behavioral Core Facility, Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Peter D Cole
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA; Rutgers Cancer Institute of New Jersey, Division of Pediatric Hematology/Oncology, New Brunswick, NJ, USA.
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28
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Santos JC, Pyter LM. Neuroimmunology of Behavioral Comorbidities Associated With Cancer and Cancer Treatments. Front Immunol 2018; 9:1195. [PMID: 29930550 PMCID: PMC6001368 DOI: 10.3389/fimmu.2018.01195] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/14/2018] [Indexed: 12/27/2022] Open
Abstract
Behavioral comorbidities (depression, anxiety, fatigue, cognitive disturbances, and neuropathic pain) are prevalent in cancer patients and survivors. These mental and neurological health issues reduce quality-of-life, which is a significant societal concern given the increasing rates of long-term survival after various cancers. Hypothesized causes of behavioral comorbidities with cancer include tumor biology, stress associated with the cancer experience, and cancer treatments. A relatively recent leading mechanism by which these causes contribute to changes in neurobiology that underlie behavior is inflammation. Indeed, both basic and clinical research indicates that peripheral inflammation leads to central inflammation and behavioral changes in other illness contexts. Given the limitations of assessing neuroimmunology in clinical populations, this review primarily synthesizes evidence of neuroimmune and neuroinflammatory changes due to two components of cancer (tumor biology and cancer treatments) that are associated with altered affective-like or cognitive behaviors in rodents. Specifically, alterations in microglia, neuroinflammation, and immune trafficking to the brain are compiled in models of tumors, chemotherapy, and/or radiation. Evidence-based neuronal mechanisms by which these neuroimmune changes may lead to changes in behavior are proposed. Finally, converging evidence in clinical cancer populations is discussed.
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Affiliation(s)
- Jessica C Santos
- Department of Basic and Applied Immunology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil
| | - Leah M Pyter
- Departments of Psychiatry and Behavioral Health and Neuroscience, The Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, United States
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29
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Chemotherapy and cognition: International cognition and cancer task force recommendations for harmonising preclinical research. Cancer Treat Rev 2018; 69:72-83. [PMID: 29909223 DOI: 10.1016/j.ctrv.2018.05.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 12/22/2022]
Abstract
Cancer survivors who undergo chemotherapy for non-CNS tumours often report substantial cognitive disturbances that adversely affect quality of life, during and after treatment. The neurotoxic effects of anti-cancer drugs have been confirmed in clinical and pre-clinical research. Work with animals has also identified a range of factors and underlying mechanisms that contribute to chemotherapy-induced cognitive impairment. However, there is a continuing need to develop standard cognitive testing procedures for validation and comparison purposes, broaden the search for biological and neurochemical mechanisms, and develop improved animal models for investigating the combined effects of treatment, the disease, and other potential factors (e.g., age, stress). In this paper, a working group, formed under the auspices of the International Cognition and Cancer Task Force, reviews the state of pre-clinical research, formulates strategic priorities, and provides recommendations to guide animal research that meaningfully informs clinical investigations.
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30
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Muñoz FV, Larkey L. THE CREATIVE PSYCHOSOCIAL GENOMIC HEALING EXPERIENCE (CPGHE) AND GENE EXPRESSION IN BREAST CANCER PATIENTS: A FEASIBILITY STUDY. ADVANCES IN INTEGRATIVE MEDICINE 2018; 5:9-14. [PMID: 30271706 PMCID: PMC6157740 DOI: 10.1016/j.aimed.2018.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Biomarkers associated with inflammation and immune function are increasingly being used to examine mechanisms of the effects of mind-body therapies. Less researched are biomarkers associated with cognitive and executive functioning in the study of mind-body therapy mechanisms and effects. This study explored the feasibility of recruiting breast cancer patients (BCPs) and implementation fidelity of participation in a research project utilizing the 4-stage Creative Psychosocial Genomic Healing Experience (CPGHE), a mind-body protocol that is theorized to create epigenetic effects via targeted psychological change in emotional triggers in coping with cancer. METHODS Eight BCPs were identified as eligible (stages I, II, III, early phases of treatment) and five consented to one of two intervention groups (allocated to a single session or two sessions of CPGHE). Blood draws were examined pre- and post- intervention for a stress/inflammation gene expression marker, Nuclear Factor kappa-B (NF-kB), and three markers associated with synaptic plasticity undergirding cognitive and executive functioning: Early Growth Response 1 (EGR1), activity-regulated cytoskeleton-associated protein (Arc), and brain-derived neurotrophic factor (BDNF). RESULTS One consented BCP dropped out due to illness. The remaining four adhered to the 4-stage CPGHE protocol and found the CPGHE experience beneficial. Blood samples for the gene expression results were collected and processed according to planned protocol without incident. CONCLUSION Implementing the CPGHE and achieving good adherence among a sample of BCPs is feasible. Processing of blood samples collected from BCPs for gene expression data is also feasible.
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Affiliation(s)
- Francisco V Muñoz
- Arizona State University, College of Nursing and Health, Innovation Pomona Valley Hospital Medical Center, Lewis Family, Cancer Care Center
| | - Linda Larkey
- Arizona State University, College of Nursing and Health Innovation
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31
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Flanigan TJ, Anderson JE, Elayan I, Allen AR, Ferguson SA. Effects of Cyclophosphamide and/or Doxorubicin in a Murine Model of Postchemotherapy Cognitive Impairment. Toxicol Sci 2018; 162:462-474. [PMID: 29228376 PMCID: PMC6659022 DOI: 10.1093/toxsci/kfx267] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Postchemotherapy cognitive impairment, or PCCI, is a common complaint, particularly among breast cancer patients. However, the exact nature of PCCI appears complex. To model the human condition, ovariectomized C57BL/6J mice were treated intravenous weekly for 4 weeks with saline, 2 mg/kg doxorubicin (DOX), 50 mg/kg cyclophosphamide (CYP), or DOX + CYP. For the subsequent 10 weeks, mice were assessed on several behavioral tests, including those measuring spatial learning and memory. After sacrifice, hippocampal spine density and morphology in the dentate gyrus, CA1, and CA3 regions were measured. Additionally, hippocampal levels of total glutathione, glutathione disulfide, MnSOD, CuZnSOD, and cytokines were measured. Body weight decreased in all groups during treatment, but recovered post-treatment. Most behaviors were unaffected by drug treatment: Open field activity, motor coordination, grip strength, water maze and Barnes maze performance, buried food test performance, and novel object and object location recognition tests. There were some significant effects of CYP and DOX + CYP treatment during the initial test of home cage behavior, but these did not persist into the second and third test times. Density of stubby spines, but not mushroom or thin spines, in the dentate gyrus was significantly decreased in the DOX, CYP, and DOX + CYP treatment groups. There were no significant effects in the CA1 or CA3 regions. CuZnSOD levels were significantly increased in DOX + CYP-treated mice; other hippocampal antioxidant levels were unaffected. Most cytokines showed no treatment-related effects, but IL-1β, IL-6, and IL-12 were slightly reduced in mice treated with DOX + CYP. Although the animal model, route of exposure, and DOX and CYP doses used here were reflective of human exposure, there were only sporadic effects due to chemotherapeutic treatment.
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Affiliation(s)
- Timothy J Flanigan
- Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079
| | - Julie E Anderson
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205
| | - Ikram Elayan
- Division of Psychiatry Products, Center for Drug Evaluation and Research/FDA, Silver Spring, Maryland 20993
| | - Antiño R Allen
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205
| | - Sherry A Ferguson
- Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079
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32
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Nelson B. Clearing the fog around “chemobrain”: New research affirms the evidence for cancer-related cognitive impairment and points toward triggers and treatments. Cancer Cytopathol 2017. [DOI: 10.1002/cncy.21891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Egeland M, Guinaudie C, Du Preez A, Musaelyan K, Zunszain PA, Fernandes C, Pariante CM, Thuret S. Depletion of adult neurogenesis using the chemotherapy drug temozolomide in mice induces behavioural and biological changes relevant to depression. Transl Psychiatry 2017; 7:e1101. [PMID: 28440814 PMCID: PMC5416706 DOI: 10.1038/tp.2017.68] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/15/2017] [Accepted: 02/18/2017] [Indexed: 12/17/2022] Open
Abstract
Numerous studies have examined links between postnatal neurogenesis and depression using a range of experimental methods to deplete neurogenesis. The antimitotic drug temozolomide (TMZ) has previously been used successfully as an experimental tool in animals to deplete adult neurogenesis and is used regularly on human patients as a standard chemotherapy for brain cancer. In this study, we wanted to evaluate whether TMZ as a model for chemotherapy treatment could affect parameters related to depression in an animal model. Prevalence rates of depression in patients is thought to be highly underdiagnosed, with some studies reporting rates as high as 90%. Results from this study in mice, treated with a regimen of TMZ similar to humans, exhibited behavioural and biochemical changes that have relevance to the development of depression. In particular, behavioural results demonstrated robust deficits in processing novelty and a significant increase in the corticosterone response. Quantification of neurogenesis using a novel sectioning method, which clearly evaluates dorsal and ventral neurogenesis separately, showed a significant correlation between the level of ventral neurogenesis and the corticosterone response. Depression is a complex disorder with discoveries regarding its neurobiology and how it relates to behaviour being only in their infancy. The findings presented in this study demonstrate that chemotherapy-induced decreases in neurogenesis results in previously unreported behavioural and biochemical consequences. These results, we argue, are indicative of a biological mechanism, which may contribute to the development of depression in patients being treated with chemotherapy and is separate from the mental distress resulting from a cancer diagnosis.
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Affiliation(s)
- M Egeland
- Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Cutcombe Road, London SE5 9RT, UK. E-mail: or
| | - C Guinaudie
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - A Du Preez
- Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - K Musaelyan
- Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - P A Zunszain
- Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - C Fernandes
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - C M Pariante
- Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - S Thuret
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK,Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Cutcombe Road, London SE5 9RT, UK. E-mail: or
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