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Wang X, Sun Q, Li J, Lai B, Pei X, Chen N. Effect of Fangxia-Dihuang Decoction on doxorubicin-induced cognitive impairment in breast cancer animal model. Front Oncol 2025; 15:1515498. [PMID: 40356765 PMCID: PMC12066564 DOI: 10.3389/fonc.2025.1515498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2024] [Accepted: 04/02/2025] [Indexed: 05/15/2025] Open
Abstract
Objective Based on the murine model, this study explored the efficacy of Fangxia-Dihuang Decoction (FXDH) in interfering with cognitive impairment induced by doxorubicin (DOX) after chemotherapy for breast cancer. Methods Build 4T1 breast cancer xenograft tumor model in Balb/c mice, intraperitoneal injection of DOX (5mg/kg) once a week, build the model of DOX induced chemotherapy related cognitive impairment (CRCI), and the administration lasted for three weeks. From the first week, while DOX was given, FXDH was given high, medium and low doses by gavage every day. Conduct Y-maze and Novel object recognition (NOR) tests, detect inflammatory factors and oxidative stress-related indicators in serum and hippocampus, observe neuroinflammation and neurodegenerative changes through immunofluorescence and Nissl staining. Observation of heart and liver injury through blood routine and cardiac Hematoxylin-Eosin(HE)Staining. Results Administration of FXDH significantly improved cognitive impairment in mice. FXDH reduced the levels of pro-inflammatory cytokines IL-6, IL-12p70, and TNF-α (P<0.05), and increased the levels of anti-inflammatory cytokines IL-10 and IL-4 (P<0.05). FXDH increased the levels of GSH, GSH-PX, SOD, and CAT in serum and hippocampus (P<0.05), and decreased the level of MDA (P<0.05). The results of Nissl staining and immunofluorescence staining showed that FXDH improved the neurodegenerative lesions caused by DOX and the neuroinflammatory response in the hippocampus (P<0.05). The intermediate dose group of FXDH showed better efficacy. The results of blood routine and cardiac HE staining showed that compared with the 4T1 group, the serum ALT, AST, CK, LDH, and CKMB in DOX group mice were significantly increased (P<0.05). After FXDH administration, all indicators in mice were decreased, but there was no statistical difference. FXDH improved the disordered arrangement of myocardial cells, uneven cytoplasmic staining, and loose and disordered arrangement of myocardial fibers caused by DOX. Conclusion In the animal model, FXDH has the effect of anti-cognitive impairment after chemotherapy for breast cancer, and can improve the DOX induced learning, memory and cognitive impairment in mice. FXDH can reverse DOX induced neuroinflammation by improving the neurodegenerative changes caused by DOX, reducing pro-inflammatory cytokine levels in mouse serum and hippocampus, increasing anti-inflammatory cytokine levels, and reducing oxidative stress response.
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Affiliation(s)
- Xuan Wang
- Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing, China
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Qiqi Sun
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Jianrong Li
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Baoyong Lai
- The Xiamen Hospital of Beijing University of Chinese Medicine, Xiamen, China
| | - Xiaohua Pei
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Nana Chen
- The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
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Oliveira MEC, Torres GSV, Franklin RG, Gomes KAL, Nóbrega WFS, Fernandes TP, Santos NA. Cognitive impairments associated with chemotherapy in women with breast cancer: a meta-analysis and meta-regression. Braz J Med Biol Res 2023; 56:e12947. [PMID: 37851791 PMCID: PMC10578133 DOI: 10.1590/1414-431x2023e12947] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/19/2023] [Indexed: 10/20/2023] Open
Abstract
Chemotherapy is one of the most widely used treatments for breast cancer (BC). However, there is evidence of side effects like cognitive changes related to the chemotherapy treatment. The aim of the study was not only to summarize the existing evidence on the relationship between chemotherapy and cognitive performance in women with BC but also to identify additional consequences and aspects associated with these impairments. We conducted a systematic review with meta-analysis and meta-regression to present updated information on the matter. We retrieved data from the databases PubMed, Web of Science, PsycINFO, CINAHL, and Scopus. Twenty studies comprising over 2,500 women were examined and the results indicated that chemotherapy can compromise cognition in women with BC (-1.10 OR [95%CI: -1.81 to -0.74], P<0.01), with working memory (-0.49 OR [95%CI: -0.85 to -0.13], P=0.03) being the most affected among the domains. Furthermore, additional data indicated that cognitive impairment is most likely amid women with BC having a lower education level (Q=4.85, P=0.02). Our results suggested that chemotherapy affects cognitive functions in women with BC, and certain characteristics can worsen the deterioration. A comprehensive study of women with breast cancer and existing predictors contributes to optimized personal journeys, elevated life prospects, and advanced care that can also aid prognosis and therapeutic approaches.
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Affiliation(s)
- M E C Oliveira
- Departamento de Psicologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - G S V Torres
- Departamento de Psicologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - R G Franklin
- Departamento de Psicologia, Universidade Federal de Pernambuco, Recife, PE, Brasil
| | - K A L Gomes
- Departamento de Psicologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - W F S Nóbrega
- Departamento de Odontologia, Universidade Estadual da Paraíba, Campina Grande, PB, Brasil
| | - T P Fernandes
- Departamento de Psicologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - N A Santos
- Departamento de Psicologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
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Zhu H, Li F, Chang Y, Sun Y, Wang N, Wang R. Evaluation of the Effects of R-CHOP Chemotherapy on Brain Glucose Metabolism in Patients with Diffuse Large B Cell Lymphoma: A Baseline, Interim, and End-of-Treatment PET/CT Study. Tomography 2022; 8:2565-2573. [PMID: 36287813 PMCID: PMC9607544 DOI: 10.3390/tomography8050214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND To investigate the effect of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) chemotherapy on brain glucose metabolism in patients with diffuse large B cell lymphoma (DLBCL). METHODS Seventy-two patients with newly diagnosed DLBCL underwent FDG PET/CT brain and whole-body scans at baseline (PET0), in the interim of chemotherapy (PET2), and at the end (PET6) of chemotherapy. All three brain scans of each patient were analyzed using statistical parametric mapping software. RESULTS Compared with the PET0 scan, the PET2 and PET6 scans revealed a significantly higher glucose metabolism throughout the whole brain, with the PET6 scan revealing a higher metabolism than the PET2 scan. Patients with a complete response (CR) displayed decreased glucose metabolism in the lingual gyrus and increased glucose metabolism in the pons after chemotherapy compared with the findings in patients with partial responses or progressive disease. CONCLUSIONS Brain glucose metabolism was affected by R-CHOP treatment throughout the entire chemotherapy protocol.
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Affiliation(s)
- Haiyan Zhu
- Department of Hematology, The Fifth Medical Center, Beijing 100039, China
| | - Fei Li
- Department of Hematology, The Fifth Medical Center, Beijing 100039, China
| | - Yan Chang
- Department of Nuclear Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Yabing Sun
- Department of Nuclear Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Nan Wang
- Department of Hematology, The Fifth Medical Center, Beijing 100039, China
| | - Ruimin Wang
- Department of Nuclear Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- Correspondence: ; Tel.: +86-10-669-36793
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Liu S, Guo Y, Ni J, Yin N, Li C, Pan X, Ma R, Wu J, Li S, Li X. Chemotherapy-induced functional brain abnormality in colorectal cancer patients: a resting‐state functional magnetic resonance imaging study. Front Oncol 2022; 12:900855. [PMID: 35924154 PMCID: PMC9339615 DOI: 10.3389/fonc.2022.900855] [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: 03/21/2022] [Accepted: 06/28/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction Chemotherapy-induced cognitive impairment (i.e., “chemobrain”) is a common neurotoxic side-effect experienced by many cancer survivors who undergone chemotherapy. However, the central mechanism underlying chemotherapy-related cognitive impairment is still unclear. The purpose of this study was to investigate the changes of intrinsic brain activity and their associations with cognitive impairment in colorectal cancer (CRC) patients after chemotherapy. Methods Resting‐state functional magnetic resonance imaging data of 29 CRC patients following chemotherapy and 29 matched healthy controls (HCs) were collected in this study, as well as cognitive test data including Mini Mental State Exam (MMSE), Montreal Cognitive Assessment (MoCA) and Functional Assessment of Cancer Therapy-Cognitive Function (FACT-Cog). The measure of fractional amplitude of low-frequency fluctuation (fALFF) was calculated and compared between groups. The correlations between the fALFF of impaired brain region and cognitive performance were also analyzed. Results Compared with HCs, CRC patients following chemotherapy showed decreased fALFF values in the left anterior cingulate gyrus (ACG) and middle frontal gyrus, as well as increased fALFF values in the left superior frontal gyrus (orbital part) and middle occipital gyrus. Moreover, positive associations were identified between fALFF values of the left ACG and the total scores of MMSE, MoCA and FACT-Cog in the patient group. Conclusion These findings indicated that CRC patients after chemotherapy had decreased intrinsic brain activity in the left ACG, which might be vulnerable to the neurotoxic side-effect of chemotherapeutic drugs and related to chemotherapy-induced cognitive impairment.
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Affiliation(s)
- Siwen Liu
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Yesong Guo
- Department of Radiotherapy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Ni
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Na Yin
- Department of Radiology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Chenchen Li
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Xuan Pan
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Rong Ma
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Jianzhong Wu
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Shengwei Li
- Department of Anorectal, Yangzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Yangzhou, China
- *Correspondence: Xiaoyou Li, ; Shengwei Li,
| | - Xiaoyou Li
- Department of Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Xiaoyou Li, ; Shengwei Li,
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Boone AE, Hart E, Wolf TJ. Transdisciplinary Preliminary Evaluation of Goal Maintenance in Cancer-Related Cognitive Impairment. OTJR-OCCUPATION PARTICIPATION AND HEALTH 2022; 42:324-332. [PMID: 35761479 DOI: 10.1177/15394492221103150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Women treated for breast cancer often experience decreases in executive functioning, including goal maintenance, which interferes with daily living. The objective of this study was to conduct a preliminary comparison of cognitive neuroscience assessment performance with neuropsychological, self-report, and performance-based assessments of goal maintenance in women with breast cancer. Women treated for breast cancer in the preceding 3 years completed a battery of cognitive assessments. Relationships between assessment methods were evaluated using Spearman rho correlations. Consistent with prior literature, the AY condition of the Dot Pattern Expectancy (DPX) assessment had the highest error rate. No consistent relationships between the DPX and other methods of assessment were identified; however, some moderate correlations were identified between assessments. Women treated for breast cancer present with DPX performance patterns similar to that of healthy controls in past literature. A larger study is required to confirm relationships between measures of goal maintenance across disciplines.
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Affiliation(s)
| | - Eric Hart
- University of Missouri, Columbia, USA
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Chan YN, Leak Bryant A, Conklin JL, Girdwood T, Piepmeier A, Hirschey R. Systematic Review of Cognitive Impairment in Colorectal Cancer Survivors Who Received Chemotherapy. Oncol Nurs Forum 2021; 48:634-647. [PMID: 34673756 PMCID: PMC8666003 DOI: 10.1188/21.onf.634-647] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PROBLEM IDENTIFICATION Cognitive impairment is a common and troublesome side effect experienced by many cancer survivors. It can have a significant impact on survivors' ability to function and enjoy a high quality of life. However, most cognitive impairment research has focused on breast cancer survivors, despite the high rates of colorectal cancer and the toxicity of treatment agents in some colorectal cancer chemotherapeutic regimens, which have been linked to cognitive impairment. This review provides a novel synthesis of what is known about cognitive impairment in colorectal cancer survivors. LITERATURE SEARCH CINAHL®, Cochrane Library, Embase®, PsycINFO®, and PubMed® were systematically searched by a health sciences librarian. DATA EVALUATION Data were extracted across studies; findings about the prevalence, severity, and correlates of cognitive impairment were synthesized. SYNTHESIS Across findings from 26 articles representing 24 independent studies, 13%-57% of participants had cognitive impairment. Potential demographic, physiologic, and psychological correlates of cognitive impairment were identified. IMPLICATIONS FOR PRACTICE Findings indicate a need to focus research and patient assessments on early identification of risk factors, assessing for existing cognitive deficits and testing interventions to decrease cognitive impairment in colorectal cancer survivors.
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Semendric I, Pollock D, Haller OJ, George RP, Collins-Praino LE, Whittaker AL. "Chemobrain" in childhood cancer survivors - the impact on social, academic, and daily living skills: a qualitative systematic review protocol. JBI Evid Synth 2021; 20:222-228. [PMID: 34341312 DOI: 10.11124/jbies-21-00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVE The objective of this review is to examine children's experiences of chemotherapy-induced cognitive impairment--also known as "chemobrain"--and the impact of chemobrain on children's social, academic, and daily living skills. INTRODUCTION The effect of childhood chemotherapy treatment on cognition is of concern because of the vulnerable nature of children's developing brains and the potential to cause lifelong detriments socially, academically, and economically. Furthermore, this population is underrepresented in the chemobrain literature and in survivorship care plans. As cancer survivorship among this group increases, it is important to understand childhood experiences so that rehabilitation strategies and suitable supports can be put in place. INCLUSION CRITERIA This review of qualitative studies will focus on the pediatric population (0-18 years of age) during and/or following chemotherapy treatment to identify their experiences with chemobrain. The review will include any studies using a qualitative research methodology (eg, surveys, focus groups, interview transcripts), conducted in any geographic location, where experiences are presented from the child's perspective. Studies assessing children's experiences of cancer, other chemotherapy-related side effects, or the parent's personal experience will be excluded. METHODS A search of MEDLINE, Embase, PsycINFO, and CINAHL databases will be conducted. Full-text, English-only articles employing a qualitative research methodology will be included in the screening process. Two independent reviewers will retrieve and screen full-text studies, and assess methodological quality of the included studies. Meta-aggregation will be performed and a ConQual Summary of Findings will present the confidence in the findings. SYSTEMATIC REVIEW REGISTRATION NUMBER PROSPERO CRD42021240573.
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Affiliation(s)
- Ines Semendric
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia JBI, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA Australia School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA, Australia
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8
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George RP, Semendric I, Bowley-Schubert ER, Chivonivoni CT, Warrender AP, Whittaker AL. Reporting in rodent models of 'chemobrain': a systematic review assessing compliance with the ARRIVE guidelines. Support Care Cancer 2021; 29:7073-7084. [PMID: 34080055 DOI: 10.1007/s00520-021-06312-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/20/2021] [Indexed: 12/09/2022]
Abstract
Patients diagnosed with cancer are often plagued with debilitating side effects post-chemotherapy treatment. One such side effect is chemotherapy-induced cognitive impairment or 'chemobrain'. Rodent models are commonly used to investigate pathogenesis and potential therapeutic strategies. However, concerns have been raised regarding inadequacies in reporting of animal studies rendering them unreliable and irreproducible. The aim of this systematic review was to assess compliance with the ARRIVE reporting guidelines in peer-reviewed publications evaluating chemotherapy-induced cognitive changes in rodent models, and to determine if the introduction of the ARRIVE guidelines has improved quality of reporting. A comprehensive search was conducted to identify relevant peer-reviewed publications. Ninety-seven studies met the eligibility criteria, and publication compliance with the ARRIVE guideline reporting was assessed. No studies achieved full adherence with the ARRIVE guidelines. Furthermore, no significant improvement was demonstrated in the overall compliance score post-ARRIVE. Given the lack of standardisation of animal models in this research area, these results pose particular threat to future progress and translation of findings in this area of research. These results highlight the need for stricter adherence to the ARRIVE guidelines by journal editors and reviewers. Animal Ethics Committees also have an important educative role in improving knowledge and awareness of the guidelines amongst researchers.
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Affiliation(s)
- Rebecca P George
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia, 5371, Australia.
| | - Ines Semendric
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, 5005, Australia
| | | | - Christine T Chivonivoni
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Alexandra P Warrender
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Alexandra L Whittaker
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia, 5371, Australia.
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Mezenge E, Pozuelos C, Bouguet G, Tron L, Joly F, Lange M. Plainte cognitive à l’issue des traitements d’un lymphome. PSYCHO-ONCOLOGIE 2021. [DOI: 10.3166/pson-2021-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objectif : Évaluer la prévalence de la plainte cognitive chez des personnes ayant été traitées pour un lymphome.
Matériel et méthode : Questionnaire diffusé auprès des participants de la Journée mondiale des lymphomes, en septembre 2017 et février 2018.
Résultats : Soixante-deux pour cent des participants (n = 396) rapportaient une plainte cognitive, et 39 % l’attribuaient aux traitements oncologiques reçus. Cinquantequatre pour cent d’entre eux auraient souhaité bénéficier de soins de support adaptés.
Conclusion : Les difficultés cognitives à la suite des traitements oncologiques doivent être mieux connues des professionnels de santé afin de proposer des soins de support adaptés.
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George RP, Semendric I, Hutchinson MR, Whittaker AL. Neuroimmune reactivity marker expression in rodent models of chemotherapy-induced cognitive impairment: A systematic scoping review. Brain Behav Immun 2021; 94:392-409. [PMID: 33516919 DOI: 10.1016/j.bbi.2021.01.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/15/2020] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Chemotherapy-induced cognitive impairment (CICI) is a debilitating side effect arising from chemotherapy treatments. The condition is characterised by a range of cognitive deficits including impairment to memory, attention, and concentration. Whilst the underlying mechanisms that contribute to CICI remain unclear, neuroinflammation has been suggested as one key contributor. METHOD A comprehensive systematic search of EMBASE and Medline via PubMed was conducted to identify studies on neuroimmune reactivity marker expression changes and resulting cognitive changes in preclinical rodent models of CICI. RESULTS A total of twenty studies met the eligibility criteria and were included in the scoping review. There was significant heterogeneity in the methodology employed in the included studies. Our findings demonstrate that widespread changes in cytokines, chemokines, microglia reactivity, and astrocyte reactivity are observed in CICI in the brain regions expected to be affected, given the nature of the cognitive impairment observed in CICI. CONCLUSIONS Although there was considerable heterogeneity in study design that made comparisons between studies difficult, our findings suggest that neuroinflammation commonly occurs in CICI preclinical rodent models and shows an association with cognitive impairment.
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Affiliation(s)
- Rebecca P George
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia 5371, Australia.
| | - Ines Semendric
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Mark R Hutchinson
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia 5005, Australia; Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Alexandra L Whittaker
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia 5371, Australia.
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Abstract
PURPOSE OF REVIEW This article reviews the clinical features, prognosis, and treatment of neurotoxicity from anticancer drugs, including conventional cytotoxic chemotherapy, biologics, and targeted therapies, with a focus on the newer immunotherapies (immune checkpoint inhibitors and chimeric antigen receptor T cells). RECENT FINDINGS Whereas neurologic complications from traditional chemotherapy are widely recognized, newer cancer therapies, in particular immunotherapies, have unique and distinct patterns of neurologic adverse effects. Anticancer drugs may cause central or peripheral nervous system complications. Neurologic complications of therapy are being seen with increasing frequency as patients with cancer are living longer and receiving multiple courses of anticancer regimens, with novel agents, combinations, and longer duration. Neurologists must know how to recognize treatment-related neurologic toxicity since discontinuation of the offending agent or dose adjustment may prevent further or permanent neurologic injury. It is also imperative to differentiate neurologic complications of therapy from cancer progression into the nervous system and from comorbid neurologic disorders that do not require treatment dose reduction or discontinuation. SUMMARY Neurotoxicity from cancer therapy is common, with effects seen on both the central and peripheral nervous systems. Immune checkpoint inhibitor therapy and chimeric antigen receptor T-cell therapy are new cancer treatments with distinct patterns of neurologic complications. Early recognition and appropriate management are essential to help prevent further neurologic injury and optimize oncologic management.
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Chen J, Wang J, Li C, Ding H, Ye J, Xia Z. Dexmedetomidine reverses MTX-induced neurotoxicity and inflammation in hippocampal HT22 cell lines via NCOA4-mediated ferritinophagy. Aging (Albany NY) 2021; 13:6182-6193. [PMID: 33632938 PMCID: PMC7950253 DOI: 10.18632/aging.202626] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/14/2021] [Indexed: 12/11/2022]
Abstract
The incidence of chemotherapy-induced cognitive impairment (CICI) has attracted massive attention. Some studies have demonstrated the neuroprotective effects of dexmedetomidine (DEX). Here, alterations in nuclear receptor coactivator 4 (NCOA4)-mediated ferritinophagy were investigated as the possible causes of DEX’s neuroprotection of HT22 cells against methotrexate (MTX)-induced neurotoxicity. We used various concentrations of DEX and NCOA4-siRNA to treat MTX-induced neurotoxicity and inflammation in HT22 cells. The biomarkers of HT22 cells viability, apoptosis and inflammatory were tested. The expression of ferritinophagy markers were detected in the HT22 cells by using western blot and Immunofluorescence. We found that 10 and 50 ng/mL of DEX alleviated MTX-induced hippocampal neuronal inflammatory injuries. Meanwhile, DEX also reversed MTX-induced iron and ROS overproduction. Increasing DEX concentrations caused significant falls in the expression of ferritin heavy chain 1 (FTH1). DEX also increased vital ferritinophagy markers, NCOA4 and LC3II. NCOA4-siRNA transfection annulled the neuroprotective effects of DEX on MTX-induced inflammation in HT22 cells. Additionally, because NCOA4-siRNA disrupted ferritinophagy, DEX’s inhibitory impact on MTX-induced iron and ROS overproduction in HT22 cells was also annihilated. DEX weakened MTX-provoked neurontoxicity in HT22 cells, possibly by improving NCOA4-mediated ferritinophagy. Our discoveries present further mechanisms for understanding the protective effects of DEX against MTX-induced cognitive impairment.
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Affiliation(s)
- Jingli Chen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China.,Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430060, China
| | - Juan Wang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China.,Department of Pain, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Chenxi Li
- Department of Oral and Maxillofacial Surgery, Laboratory for Tumor Genetics and Regenerative Medicine, The Head and Neurocenter, University Medical Center Hamburg-Eppendorf (UKE), Hamburg 20246, Germany
| | - Huang Ding
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Jishi Ye
- Department of Pain, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China.,Department of Pain, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
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Limoli C. Can a comparison of clinical and deep space irradiation scenarios shed light on the radiation response of the brain? Br J Radiol 2020; 93:20200245. [PMID: 32970457 DOI: 10.1259/bjr.20200245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Not surprisingly, our knowledge of the impact of radiation on the brain has evolved considerably. Decades of work have struggled with identifying the critical cellular targets in the brain, the latency of functional change and understanding how irradiation alters the balance between excitatory and inhibitory circuits. Radiation-induced cell kill following clinical fractionation paradigms pointed to both stromal and parenchymal targets but also defined an exquisite sensitivity of neurogenic populations of newly born cells in the brain. It became more and more apparent too, that acute (days) events transpiring after exposure were poorly prognostic of the late (months-years) waves of radiation injury believed to underlie neurocognitive deficits. Much of these gaps in knowledge persisted as NASA became interested in how exposure to much different radiation types, doses and dose rates that characterize the space radiation environment might impair central nervous system functionality, with possibly negative implications for deep space travel. Now emerging evidence from researchers engaged in clinical, translational and environmental radiation sciences have begun to fill these gaps and have uncovered some surprising similarities in the response of the brain to seemingly disparate exposure scenarios. This article highlights many of the commonalities between the vastly different irradiation paradigms that distinguish clinical treatments from occupational exposures in deep space.
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Affiliation(s)
- Charles Limoli
- Department of Radiation Oncology, University of California, Irvine, CA, United States
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Jia M, Zhang X, Wei L, Gao J. Measurement, outcomes and interventions of cognitive function after breast cancer treatment: A narrative review. Asia Pac J Clin Oncol 2020; 17:321-329. [PMID: 33079484 DOI: 10.1111/ajco.13484] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 09/19/2020] [Indexed: 11/29/2022]
Abstract
Cancer-related cognitive impairment (CRCI) is a common complaint in breast cancer patients, especially related to chemotherapy. It is characterized as cognitive disorders in areas of memory, attention and executive function, which can negatively affect patients' quality of life and their ability to work. While various assessment methods of CRCI cause highly diverse results in CRCI-related studies. Currently, it is not clear how cerebral structure and function change in breast cancer patients and underlying mechanisms of developing CRCI are still undefined. Intervention research is limited. This article reviews the results of CRCI-related studies and research progress and discusses the advantages and limits of various methods. Besides, the mechanisms and intervention strategies are reviewed.
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Affiliation(s)
- Miaomiao Jia
- Department of Breast Surgery, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Xiaojun Zhang
- Department of Breast Surgery, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Liyuan Wei
- Department of Breast Surgery, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Jinnan Gao
- Department of Breast Surgery, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
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15
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Systematic review of cognitive sequelae of non-central nervous system cancer and cancer therapy. J Cancer Surviv 2020; 14:464-482. [PMID: 32146576 DOI: 10.1007/s11764-020-00870-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/22/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The aim of this review is to provide an updated overview of chemotherapy-related cognitive impairment (CRCI) in patients with cancer outside central nervous system (CNS), its incidence and prevalence, the cognitive pattern in neuropsychological studies, neuroimaging findings, and the relationship between chemobrain and aging. Methodological limitations of studies are also discussed. METHODS This review was guided by the PRISMA statement. The MEDLINE and Scopus databases were employed to search articles about CRCI in non-CNS cancer patients published from January 2004 to September 2019. Two types of research were reviewed: prospective studies addressing the effects of chemotherapy on cognition and systematic reviews about factors related with CRCI, also as neuroimaging findings and current available treatments. RESULTS Fifty-nine studies meeting the criteria were analyzed: 47 were longitudinal studies on cancer and cognition and 12 were reviews on risk factors, neuroimaging, and treatment. The majority of studies find cognitive impairment in patients with cancer treated with chemotherapy. The body of the literature on breast cancer is the most abundant, but there are also studies on colorectal, testicular, and lung cancer. Neuroimaging studies show changes in structure and activation in patients undergoing chemotherapy. Non-pharmacological treatment is effective for improving cognition and quality of life. CONCLUSIONS The occurrence of CRCI during the course of treatment in people with different types of cancer is frequent. Some risk factors have been identified, but CRCI is a complex phenomenon, with mediating factors related to cancer and treatment and moderating factors related with lifestyle and health. IMPLICATIONS FOR CANCER SURVIVORS This review highlights the importance of recognizing that this cognitive dysfunction is frequent, mild to moderate in nature but with great impact on quality of life.
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16
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Pergolotti M, Battisti NML, Padgett L, Sleight AG, Abdallah M, Newman R, Van Dyk K, Covington KR, Williams GR, van den Bos F, Pollock Y, Salerno EA, Magnuson A, Gattás-Vernaglia IF, Ahles TA. Embracing the complexity: Older adults with cancer-related cognitive decline-A Young International Society of Geriatric Oncology position paper. J Geriatr Oncol 2020; 11:237-243. [PMID: 31619372 PMCID: PMC7054166 DOI: 10.1016/j.jgo.2019.09.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/01/2019] [Accepted: 09/04/2019] [Indexed: 01/16/2023]
Abstract
Cancer-related cognitive decline (CRCD) may have particularly significant consequences for older adults, impacting their functional and physical abilities, level of independence, ability to make decisions, treatment adherence, overall quality of life, and ultimately survival. In honor of Dr. Hurria's work we explore and examine multiple types of screening, assessment and non-pharmacologic treatments for CRCD. We then suggest future research and clinical practice questions to holistically appreciate the complexity of older adults with cancer's experiences and fully integrate the team-based approach to best serve this population.
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Affiliation(s)
- Mackenzi Pergolotti
- ReVital Cancer Rehabilitation, Select Medical, 4174 Gettysburg Rd, Mechanicsburg, PA 17055, USA; Department of Occupational Therapy - College of Health and Human Sciences, Colorado State University, 200 Occupational Therapy Building, Fort Collins, CO 80523-1573, USA.
| | - Nicolò Matteo Luca Battisti
- Department of Medicine - Breast Unit, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton Surrey SM2 5PT, United Kingdom.
| | - Lynne Padgett
- Veterans Affairs Medical Center, Washington, DC, USA
| | - Alix G Sleight
- Outcomes Research Branch, Healthcare Delivery Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, USA.
| | - Maya Abdallah
- Department of Internal Medicine, University of Massachusetts Medical School - Baystate Medical Center, 759 Chestnut St., Springfield, MA, 01199, USA.
| | - Robin Newman
- Department of Occupational Therapy, Boston University Sargent College of Health and Rehabilitation Sciences, 635 Commonwealth Avenue, Boston, MA 02215, USA.
| | - Kathleen Van Dyk
- Jonsson Comprehensive Cancer Center, Cancer Prevention and Control Research, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Kelley R Covington
- ReVital Cancer Rehabilitation, Select Medical, 4174 Gettysburg Rd, Mechanicsburg, PA 17055, USA; Department of Occupational Therapy - College of Health and Human Sciences, Colorado State University, 200 Occupational Therapy Building, Fort Collins, CO 80523-1573, USA.
| | - Grant R Williams
- Divisions of Hematology/Oncology & Gerontology, Geriatrics, and Palliative Care, Institute for Cancer Outcomes and Survivorship, The University of Alabama at Birmingham, 1670 University Blvd, Birmingham, AL 35233, USA.
| | - Frederiek van den Bos
- Departement of Geriatric Medicine, University Medical Centre Utrecht, Heidelberglaan 100, 3584, CX, Utrecht, Netherlands.
| | - YaoYao Pollock
- Geriatric Oncology Fellowship Program, University of California, San Francisco, 1600 Divisadero St, San Francisco, CA 94115, USA.
| | - Elizabeth A Salerno
- Division of Cancer Epidemiology & Genetics, Metabolic Epidemiology Branch, National Cancer Institute, 9609 Medical Center Dr, Rockville, MD 20850, USA.
| | - Allison Magnuson
- Department of Medicine, Hematology/Oncology, University of Rochester Medical Center, 601 Elmwood Ave, Box 704, Rochester, NY 14642, USA.
| | - Isabella F Gattás-Vernaglia
- Division of Geriatrics, Department of Internal Medicine, University of São Paulo Medical School, Hospital Sírio-Libanês- Geriatric Oncology Team, Av. Dr. Enéas de Carvalho Aguiar, 155, 8° Andar, Bloco 3, São Paulo, SP CEP 05403-900, Brazil
| | - Tim A Ahles
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Ave, New York, NY 10022, USA.
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Fernandes HA, Richard NM, Edelstein K. Cognitive rehabilitation for cancer-related cognitive dysfunction: a systematic review. Support Care Cancer 2019; 27:3253-3279. [PMID: 31147780 DOI: 10.1007/s00520-019-04866-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 01/03/2023]
Abstract
PURPOSE Individuals with non-central nervous system (CNS) cancers can experience cancer-related cognitive dysfunction (CRCD), negatively impacting daily functioning and quality of life. This systematic review examined cognitive rehabilitation programs aimed at improving cognitive function. METHODS PsychInfo and PubMed were searched in February 2019. Eligible studies evaluated a cognitive rehabilitation program for adults with non-CNS cancers and included at least one objective cognitive measure. Across studies, we assessed methodological quality using relevant criteria based on published intervention-related review guidelines and examined findings from performance-based and self-reported outcome measures. RESULTS 19 studies met inclusion criteria, totalling 1124 participants altogether. These studies included randomized controlled trials (n = 12), partial, quasi or non-randomized controlled trials (n = 3) and single-arm pilot studies (n = 4). All studies found improvements on at least one cognitive measure (performance-based or self-reported). By cognitive domain, objective improvements in memory were most commonly reported, followed by executive functions and processing speed. In terms of methodological quality, studies generally provided clear descriptions of participants and interventions. However, limitations included lack of standardized terminology for interventions, discrepancies in outcome measures, and incomplete statistical reporting. CONCLUSIONS The available evidence supports clinical implementation of cognitive rehabilitation to improve CRCD, with further work in program development, dissemination, and feasibility recommended. We provide specific recommendations to facilitate future research and integration in this field.
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Affiliation(s)
- Holly A Fernandes
- Department of Psychology, Faculty of Health, York University, 4700 Keele St., Toronto, ON, M3J 1P3, Canada.
| | - Nadine M Richard
- Department of Supportive Care, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Kim Edelstein
- Department of Supportive Care, Princess Margaret Cancer Centre, Toronto, ON, Canada
- Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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18
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Kang S, Lee S, Kim J, Kim JC, Kim SH, Son Y, Shin T, Youn B, Kim JS, Wang H, Yang M, Moon C. Chronic Treatment with Combined Chemotherapeutic Agents Affects Hippocampal Micromorphometry and Function in Mice, Independently of Neuroinflammation. Exp Neurobiol 2018; 27:419-436. [PMID: 30429651 PMCID: PMC6221841 DOI: 10.5607/en.2018.27.5.419] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/01/2018] [Accepted: 10/02/2018] [Indexed: 12/22/2022] Open
Abstract
Chemotherapeutic agents induce long-term side effects, including cognitive impairment and mood disorders, particularly in breast cancer survivors who have undergone chemotherapy. However, the precise mechanisms underpinning chemotherapy-induced hippocampal dysfunction remain unknown. In this study, we investigated the detrimental effects of chronic treatment with a combination of adriamycin and cyclophosphamide (AC) on the neuronal architecture and functions of the hippocampi of female C57BL/6 mice. After chronic AC administration, mice showed memory impairment (measured using a novel object recognition memory task) and depression-like behavior (measured using the tail suspension test and forced swim test). According to Golgi staining, chronic AC treatment significantly reduced the total dendritic length, ramification, and complexity as well as spine density and maturation in hippocampal neurons in a sub-region-specific manner. Additionally, the AC combination significantly reduced adult neurogenesis, the extent of the vascular network, and the levels of hippocampal angiogenesis-related factors. However, chronic AC treatment did not increase the levels of inflammation-related signals (microglial or astrocytic distribution, or the levels of pro-inflammatory cytokines or M1/M2 macrophage markers). Thus, chronic AC treatment changed the neuronal architecture of the adult hippocampus, possibly by reducing neurogenesis and the extent of the vasculature, independently of neuroinflammation. Such detrimental changes in micromorphometric parameters may explain the hippocampal dysfunction observed after cancer chemotherapy.
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Affiliation(s)
- Sohi Kang
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
| | - Sueun Lee
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
| | - Juhwan Kim
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
| | - Sung-Ho Kim
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
| | - Yeonghoon Son
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea.,Primate Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup 56216, Korea
| | - Taekyun Shin
- Department of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University, Jeju 63243, Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
| | - Joong-Sun Kim
- K-herb Research Center, Korea Institute of Oriental Medicine, Daejeon 34054, Korea
| | - Hongbing Wang
- Department of Physiology and Neuroscience Program, Michigan State University, MI 48824, USA
| | - Miyoung Yang
- Department of Anatomy, School of Medicine and Institute for Environmental Science, Wonkwang University, Iksan 54538, Korea
| | - Changjong Moon
- College of Veterinary Medicine and BK21Plus Project Team, Chonnam National University, Gwangju 61186, Korea
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19
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Welbat JU, Chaisawang P, Pannangrong W, Wigmore P. Neuroprotective Properties of Asiatic Acid against 5-Fluorouracil Chemotherapy in the Hippocampus in an Adult Rat Model. Nutrients 2018; 10:E1053. [PMID: 30096914 PMCID: PMC6115773 DOI: 10.3390/nu10081053] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 12/11/2022] Open
Abstract
5-fluorouracil or 5-FU (a chemotherapeutic medication) has been revealed to induce memory deficits in many cancer patients. Asiatic acid (AA) is a triterpenoid extract from Centella asiatica. This compound can ameliorate intracellular oxidative stress caused by chemotherapy drugs. Recent studies have shown that AA is capable of inhibiting neuronal generation and memory deficit produced by 5-FU chemotherapy. This study aimed to assess the molecular mechanisms of AA related to hippocampal neurogenesis and memory in rats receiving 5-FU. Male Sprague Dawley rats were given AA (30 mg/kg) orally and given 5-FU (25 mg/kg) by i.v. injection 5 times. Some rats were given AA for 20 days before and during 15-FU treatment (preventive), some received AA for 20 days after 5-FU treatment (recovery), and some underwent treatment with AA throughout the time of the experiment (throughout) for 40 days. Treatment with 5-FU caused significant reductions in Notch1, sex determining region Y-box 2 (SOX2), nestin, doublecortin (DCX), and nuclear factor erythroid 2-related factor 2 (Nrf2) levels within the hippocampus. In addition, 5-FU significantly increased p21 positive cell number in the subgranular zone (SGZ) and malondialdehyde (MDA) levels in the hippocampus. Administration with both AA and 5-FU in prevention and throughout was able to prevent decreases in Notch1 SOX2, nestin, DCX, and Nrf2 caused by 5-FU. Treatment with AA also led to decreases in p21 positive cells and MDA levels in the hippocampus. These findings exhibit that AA has the ability to counteract the down-regulation of neurogenesis within the hippocampus and memory deficits caused by 5-FU via inhibiting oxidative stress and increasing neuroprotective properties.
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Affiliation(s)
- 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.
| | - Pornthip Chaisawang
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Wanassanun 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.
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20
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Bajic JE, Johnston IN, Howarth GS, Hutchinson MR. From the Bottom-Up: Chemotherapy and Gut-Brain Axis Dysregulation. Front Behav Neurosci 2018; 12:104. [PMID: 29872383 PMCID: PMC5972222 DOI: 10.3389/fnbeh.2018.00104] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 04/30/2018] [Indexed: 12/12/2022] Open
Abstract
The central nervous system and gastrointestinal tract form the primary targets of chemotherapy-induced toxicities. Symptoms associated with damage to these regions have been clinically termed chemotherapy-induced cognitive impairment and mucositis. Whilst extensive literature outlines the complex etiology of each pathology, to date neither chemotherapy-induced side-effect has considered the potential impact of one on the pathogenesis of the other disorder. This is surprising considering the close bidirectional relationship shared between each organ; the gut-brain axis. There are complex multiple pathways linking the gut to the brain and vice versa in both normal physiological function and disease. For instance, psychological and social factors influence motility and digestive function, symptom perception, and behaviors associated with illness and pathological outcomes. On the other hand, visceral pain affects central nociception pathways, mood and behavior. Recent interest highlights the influence of functional gut disorders, such as inflammatory bowel diseases and irritable bowel syndrome in the development of central comorbidities. Gut-brain axis dysfunction and microbiota dysbiosis have served as key portals in understanding the potential mechanisms associated with these functional gut disorders and their effects on cognition. In this review we will present the role gut-brain axis dysregulation plays in the chemotherapy setting, highlighting peripheral-to-central immune signaling mechanisms and their contribution to neuroimmunological changes associated with chemotherapy exposure. Here, we hypothesize that dysregulation of the gut-brain axis plays a major role in the intestinal, psychological and neurological complications following chemotherapy. We pay particular attention to evidence surrounding microbiota dysbiosis, the role of intestinal permeability, damage to nerves of the enteric and peripheral nervous systems and vagal and humoral mediated changes.
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Affiliation(s)
- Juliana E. Bajic
- Discipline of Physiology, School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Ian N. Johnston
- School of Psychology, The University of Sydney, Sydney, NSW, Australia
| | - Gordon S. Howarth
- School of Animal and Veterinary Sciences, University of Adelaide, Adelaide, SA, Australia
- Department of Gastroenterology, Women's and Children's Hospital, North Adelaide, SA, Australia
| | - Mark R. Hutchinson
- Discipline of Physiology, School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre of Excellence for Nanoscale Biophotonics, The University of Adelaide, Adelaide, SA, Australia
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21
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Peterson BM, Johnson C, Case KR, Shackelford DYK, Brown JM, Lalonde TL, Hayward R. Feasibility of a combined aerobic and cognitive training intervention on cognitive function in cancer survivors: a pilot investigation. Pilot Feasibility Stud 2018; 4:50. [PMID: 29468085 PMCID: PMC5816373 DOI: 10.1186/s40814-018-0242-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 01/29/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cancer-related cognitive impairment (CRCI) may negatively affect upwards of 75% of cancer patients. Exercise and cognitive training, independently, may increase functional capacity and aspects of cognitive function. Yet, combined training protocols have not been evaluated in cancer survivor populations. Therefore, the aim of this study was to explore the feasibility of a quasi-randomized, controlled, exploratory, repeated-measures aerobic and cognitive training intervention on cognitive function in participants undergoing treatment for cancer (N = 28). METHODS Pre- and post-physical and cognitive assessments were administered. A 36-session (approximately 12 weeks) computer-based cognitive (COG), aerobic (AER), cognitive and aerobic (AER + COG), and flexibility (CON) training intervention was completed. Dependent measures t tests and pre- to post percentages were then calculated to address within-group changes for each dependent variable. RESULTS Within-group measures revealed that the AER logical memory scores (pre- to post mean difference [2.3], 95.0% CI [0.9, 3.7], percentage change [32.7%]), delayed recall scores (pre- to post mean difference [2.1], 95.0% CI [0.3, 3.9], percentage change [27.2%]), block design scores (pre- to post mean difference [1.7], 95.0% CI [0.2, 3.2], percentage change [19.0%]), and letter-number sequencing scores (pre- to post mean difference [1.0], 95.0% CI [0.2, 1.8], percentage change [12.3%]) all increased. Aspects of verbal fluidity scores increased in the CON group. However, all cognitive scores (AER + COG and COG groups) failed to increase. CONCLUSIONS Aerobic training for CRCI may positively impact cognitive function. Individually, these methods may appropriately address CRCI, but combined training of this nature may be too demanding for patients undergoing treatment for cancer. However, larger randomized trials are needed to substantiate this protocol in large-scale cancer rehabilitation centers.
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Affiliation(s)
- Brent M. Peterson
- Department of Kinesiology and Health Science, Biola University, 13800 Biola Ave., La Mirada, CA 90639 USA
- School of Sport and Exercise Science, University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, 501 W. 20th St., Greeley, CO 80639 USA
| | - Cynthia Johnson
- School of Psychological Sciences, University of Northern Colorado, Greeley, CO USA
| | - Kaylene R. Case
- School of Psychological Sciences, University of Northern Colorado, Greeley, CO USA
| | - Daniel Y. K. Shackelford
- Department of Exercise Science, Carroll University, 100 N. East Ave., Waukesha, WI 53186 USA
- School of Sport and Exercise Science, University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, 501 W. 20th St., Greeley, CO 80639 USA
| | - Jessica M. Brown
- Department of Exercise Science, Carroll University, 100 N. East Ave., Waukesha, WI 53186 USA
- School of Sport and Exercise Science, University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, 501 W. 20th St., Greeley, CO 80639 USA
| | - Trent L. Lalonde
- Department of Applied Statistics and Research Methods, University of Northern Colorado, Greeley, CO USA
| | - Reid Hayward
- School of Sport and Exercise Science, University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, 501 W. 20th St., Greeley, CO 80639 USA
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Wilson C, Giles K, Nettelbeck T, Hutchinson A. Locus of control, optimism, and recollections of depression and self-reported cognitive functioning following treatment for colorectal cancer. Psychooncology 2017; 27:676-682. [DOI: 10.1002/pon.4567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 08/29/2017] [Accepted: 10/07/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Carlene Wilson
- School of Medicine, Flinders Centre for Innovation in Cancer; Flinders University; Adelaide South Australia Australia
- Olivia Newton John Cancer Wellness and Research Centre and School of Psychology and Public Health; La Trobe University; Heidelberg Victoria Australia
| | - Kristy Giles
- School of Medicine, Flinders Centre for Innovation in Cancer; Flinders University; Adelaide South Australia Australia
| | - Ted Nettelbeck
- School of Medicine, Flinders Centre for Innovation in Cancer; Flinders University; Adelaide South Australia Australia
| | - Amanda Hutchinson
- School of Psychology; University of Adelaide; Adelaide South Australia Australia
- School of Psychology, Social Work and Social Policy; University of South Australia; Adelaide South Australia Australia
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23
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Characterization and reversal of Doxorubicin-mediated biphasic activation of ERK and persistent excitability in sensory neurons of Aplysia californica. Sci Rep 2017; 7:4533. [PMID: 28674403 PMCID: PMC5495788 DOI: 10.1038/s41598-017-04634-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/18/2017] [Indexed: 12/17/2022] Open
Abstract
Doxorubicin (DOX), a common chemotherapeutic agent, impairs synaptic plasticity. DOX also causes a persistent increase in basal neuronal excitability, which occludes serotonin-induced enhanced excitability. Therefore, we sought to characterize and reverse DOX-induced physiological changes and modulation of molecules implicated in memory induction using sensory neurons from the marine mollusk Aplysia californica. DOX produced two mechanistically distinct phases of extracellular signal-regulated kinase (ERK) activation, an early and a late phase. Inhibition of MEK (mitogen-activated protein kinase (MAPK)/ERK kinase) after DOX treatment reversed the late ERK activation. MEK inhibition during treatment enhanced the late ERK activation possibly through prolonged downregulation of MAPK phosphatase-1 (MKP-1). Unexpectedly, the late ERK activation negatively correlated with excitability. MEK inhibition during DOX treatment simultaneously enhanced the late activation of ERK and blocked the increase in basal excitability. In summary, we report DOX-mediated biphasic activation of ERK and the reversal of the associated changes in neurons, a potential strategy for reversing the deleterious effects of DOX treatment.
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24
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Iarkov A, Appunn D, Echeverria V. Post-treatment with cotinine improved memory and decreased depressive-like behavior after chemotherapy in rats. Cancer Chemother Pharmacol 2016; 78:1033-1039. [PMID: 27709283 DOI: 10.1007/s00280-016-3161-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/27/2016] [Indexed: 12/15/2022]
Abstract
PURPOSE Most cancer patients treated with systemic adjuvant chemotherapy endure long-lasting side effects including decrease in concentration, forgetfulness and slower thinking, which are globally termed "chemobrain." Cotinine, the main derivative of nicotine, improved visual and spatial working memory and decreased depressive-like behavior in an animal model of chemotherapy-induced cognitive impairment. METHODS In this study, we investigated the effect of cotinine on weight gain, locomotor activity, cognitive abilities and depressive-like behavior in rats treated with the chemotherapy mix, cyclophosphamide, methotrexate and 5-fluorouracil. Locomotor activity and depressive-like behavior were assessed using the rotarod and Porsolt's tests, respectively. Changes in cognitive abilities were determined using the novel place recognition test. RESULTS Female rats treated with cotinine after chemotherapy, recovered weight faster, showed superior cognitive abilities and lower levels of depressive-like behavior than chemotherapy, vehicle-treated rats. CONCLUSIONS This evidence suggests that treatment with cotinine may facilitate the recovery and diminish the cognitive consequences of chemotherapy.
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Affiliation(s)
- Alexandre Iarkov
- Facultad de ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4080871, Concepción, Chile
| | - Doreen Appunn
- Department of Veterans Affairs, Bay Pines VA Healthcare System, Bay Pines, FL, 33744, USA
| | - Valentina Echeverria
- Facultad de ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4080871, Concepción, Chile. .,Department of Veterans Affairs, Bay Pines VA Healthcare System, 10,000 Bay Pines Blvd. Bldg. 22, Rm. 123, Bay Pines, FL, 33744, USA.
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25
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Craver BM, Acharya MM, Allen BD, Benke SN, Hultgren NW, Baulch JE, Limoli CL. 3D surface analysis of hippocampal microvasculature in the irradiated brain. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:341-349. [PMID: 27175611 PMCID: PMC4912407 DOI: 10.1002/em.22015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/24/2016] [Indexed: 06/05/2023]
Abstract
Cranial irradiation used to control CNS malignancies can also disrupt the vasculature and impair neurotransmission and cognition. Here we describe two distinct methodologies for quantifying early and late radiation injury in CNS microvasculature. Intravascular fluorescently labeled lectin was used to visualize microvessels in the brain of the irradiated mouse 2 days post exposure and RECA-1 immunostaining was similarly used to visualize microvessels in the brain of the irradiated rat 1-month post exposure. Confocal microscopy, image deconvolution and 3-dimensional rendering methods were used to define vascular structure in a ∼4 × 10(7) μm(3) defined region of the brain. Quantitative analysis of these 3D images revealed that irradiation caused significant short- and long-term reductions in capillary density, diameter and volume. In mice, irradiation reduced mean vessel volume from 2,250 to 1,470 μm(3) and mean vessel diameter from 5.0 to 4.5 μm, resulting in significant reductions of 34% and 10%, in the hippocampus respectively. The number of vessel branch points and area was also found to also drop significantly in mice 2 days after irradiation. For rats, immunostaining revealed a significant, three-fold drop in capillary density 1 month after exposure compared to controls. Such radiation-induced disruption of the CNS microvasculature may be contributory if not causal to any number of neurocognitive side effects that manifest in cancer patients following cranial radiotherapy. This study demonstrates the utility of two distinct methodologies for quantifying these important adverse effects of radiotherapy. Environ. Mol. Mutagen. 57:341-349, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Brianna M. Craver
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
| | - Munjal M. Acharya
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
| | - Barrett D. Allen
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
| | - Sarah N. Benke
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
| | - Nan W. Hultgren
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, 92697, USA
| | - Janet E. Baulch
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
| | - Charles L. Limoli
- Department of Radiation Oncology, University of California, Irvine, CA, 92697-2695, USA
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Stone JB, DeAngelis LM. Cancer-treatment-induced neurotoxicity--focus on newer treatments. Nat Rev Clin Oncol 2015; 13:92-105. [PMID: 26391778 DOI: 10.1038/nrclinonc.2015.152] [Citation(s) in RCA: 184] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Neurotoxicity caused by traditional chemotherapy and radiotherapy is widely recognized in patients with cancer. The adverse effects of newer therapeutics, such as biological and immunotherapeutic agents, are less well established, and are associated with considerable neurotoxicity in the central and peripheral nervous systems. This Review addresses the main neurotoxicities of cancer treatment with a focus on the newer therapeutics. Recognition of these patterns of toxicity is important because drug discontinuation or dose adjustment might prevent further neurological injury. Knowledge of these toxicities also helps to differentiate treatment-related symptoms from progression of cancer or its involvement of the nervous system. Familiarity with the neurological syndromes associated with cancer treatments enables clinicians to use the appropriate treatment for the underlying malignancy while minimizing the risk of neurological damage, which might preserve patients' quality of life.
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Affiliation(s)
- Jacqueline B Stone
- Department of Neurology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - Lisa M DeAngelis
- Department of Neurology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
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Sleight A. Coping with cancer-related cognitive dysfunction: a scoping review of the literature. Disabil Rehabil 2015; 38:400-8. [PMID: 25885669 DOI: 10.3109/09638288.2015.1038364] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 03/31/2015] [Accepted: 04/02/2015] [Indexed: 01/17/2023]
Abstract
PURPOSE Cancer-related cognitive dysfunction (CRCD) impacts memory, attention, concentration, language, multi-tasking, and organizational skills and decreases participation and quality of life for cancer survivors. The objectives of this article are: (1) to outline the neuroscience of CRCD, its risk factors, and its effect on participation; and (2) to identify and summarize the literature on rehabilitation interventions and coping techniques for CRCD in cancer survivors. METHODS A scoping review of articles cited in PubMed, MEDLINE, PsychINFO, and CINAHL was performed. To be included, articles must have been published in a peer-reviewed scientific journal between 1996 and 2014, written in English, and included a quantitative or qualitative non-pharmacological study of interventions and/or coping strategies for adult cancer survivors experiencing CRCD. RESULTS Ten articles met the inclusion criteria for final review. Six studies tested the efficacy of rehabilitation treatments on CRCD. Three involved cognitive-behavioral therapy (CBT), while three tested neuropsychological and/or cognitive training interventions. Four qualitative studies investigated coping strategies used by survivors with CRCD. CONCLUSIONS CBT-based treatments and neuropsychological/cognitive training methods may ameliorate symptoms of CRCD. The most commonly-reported coping strategy is utilization of assistive technology and memory aids. Further research is needed about efficacious rehabilitation techniques for this population. Implications for Rehabilitation Cancer-related cognitive dysfunction (CRCD) may impact up to 50% of cancer survivors. CRCD can significantly decrease participation and quality of life during survivorship. Cognitive-behavioral therapy (CBT) and neuropsychological/cognitive training methods may ameliorate symptoms of CRCD. The most common coping strategy reported by cancer survivors with CRCD is the use of assistive technology and memory aids.
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Affiliation(s)
- Alix Sleight
- a Mrs. T.H. Chan Division of Occupational Science and Occupational Therapy, University of Southern California , Los Angeles , CA , USA
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Acharya MM, Martirosian V, Chmielewski NN, Hanna N, Tran KK, Liao AC, Christie LA, Parihar VK, Limoli CL. Stem cell transplantation reverses chemotherapy-induced cognitive dysfunction. Cancer Res 2015; 75:676-86. [PMID: 25687405 DOI: 10.1158/0008-5472.can-14-2237] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The frequent use of chemotherapy to combat a range of malignancies can elicit severe cognitive dysfunction often referred to as "chemobrain," a condition that can persist long after the cessation of treatment in as many as 75% of survivors. Although cognitive health is a critical determinant of therapeutic outcome, chemobrain remains an unmet medical need that adversely affects quality of life in pediatric and adult cancer survivors. Using a rodent model of chemobrain, we showed that chronic cyclophosphamide treatment induced significant performance-based decrements on behavioral tasks designed to interrogate hippocampal and cortical function. Intrahippocampal transplantation of human neural stem cells resolved all cognitive impairments when animals were tested 1 month after the cessation of chemotherapy. In transplanted animals, grafted cells survived (8%) and differentiated along neuronal and astroglial lineages, where improved cognition was associated with reduced neuroinflammation and enhanced host dendritic arborization. Stem cell transplantation significantly reduced the number of activated microglia after cyclophosphamide treatment in the brain. Granule and pyramidal cell neurons within the dentate gyrus and CA1 subfields of the hippocampus exhibited significant reductions in dendritic complexity, spine density, and immature and mature spine types following chemotherapy, adverse effects that were eradicated by stem cell transplantation. Our findings provide the first evidence that cranial transplantation of stem cells can reverse the deleterious effects of chemobrain, through a trophic support mechanism involving the attenuation of neuroinflammation and the preservation host neuronal architecture.
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Affiliation(s)
- Munjal M Acharya
- Department of Radiation Oncology, University of California, Irvine, California
| | - Vahan Martirosian
- Department of Radiation Oncology, University of California, Irvine, California
| | | | - Nevine Hanna
- Department of Radiation Oncology, University of California, Irvine, California
| | - Katherine K Tran
- Department of Radiation Oncology, University of California, Irvine, California
| | - Alicia C Liao
- Department of Radiation Oncology, University of California, Irvine, California
| | - Lori-Ann Christie
- Department of Radiation Oncology, University of California, Irvine, California
| | - Vipan K Parihar
- Department of Radiation Oncology, University of California, Irvine, California
| | - Charles L Limoli
- Department of Radiation Oncology, University of California, Irvine, California.
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Doxorubicin attenuates serotonin-induced long-term synaptic facilitation by phosphorylation of p38 mitogen-activated protein kinase. J Neurosci 2015; 34:13289-300. [PMID: 25274809 DOI: 10.1523/jneurosci.0538-14.2014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Doxorubicin (DOX) is an anthracycline used widely for cancer chemotherapy. Its primary mode of action appears to be topoisomerase II inhibition, DNA cleavage, and free radical generation. However, in non-neuronal cells, DOX also inhibits the expression of dual-specificity phosphatases (also referred to as MAPK phosphatases) and thereby inhibits the dephosphorylation of extracellular signal-regulated kinase (ERK) and p38 mitogen-activated protein kinase (p38 MAPK), two MAPK isoforms important for long-term memory (LTM) formation. Activation of these kinases by DOX in neurons, if present, could have secondary effects on cognitive functions, such as learning and memory. The present study used cultures of rat cortical neurons and sensory neurons (SNs) of Aplysia to examine the effects of DOX on levels of phosphorylated ERK (pERK) and phosphorylated p38 (p-p38) MAPK. In addition, Aplysia neurons were used to examine the effects of DOX on long-term enhanced excitability, long-term synaptic facilitation (LTF), and long-term synaptic depression (LTD). DOX treatment led to elevated levels of pERK and p-p38 MAPK in SNs and cortical neurons. In addition, it increased phosphorylation of the downstream transcriptional repressor cAMP response element-binding protein 2 in SNs. DOX treatment blocked serotonin-induced LTF and enhanced LTD induced by the neuropeptide Phe-Met-Arg-Phe-NH2. The block of LTF appeared to be attributable to overriding inhibitory effects of p-p38 MAPK, because LTF was rescued in the presence of an inhibitor (SB203580 [4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)-1H-imidazole]) of p38 MAPK. These results suggest that acute application of DOX might impair the formation of LTM via the p38 MAPK pathway.
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Benderitter M, Caviggioli F, Chapel A, Coppes RP, Guha C, Klinger M, Malard O, Stewart F, Tamarat R, van Luijk P, Limoli CL. Stem cell therapies for the treatment of radiation-induced normal tissue side effects. Antioxid Redox Signal 2014; 21:338-55. [PMID: 24147585 PMCID: PMC4060814 DOI: 10.1089/ars.2013.5652] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Targeted irradiation is an effective cancer therapy but damage inflicted to normal tissues surrounding the tumor may cause severe complications. While certain pharmacologic strategies can temper the adverse effects of irradiation, stem cell therapies provide unique opportunities for restoring functionality to the irradiated tissue bed. RECENT ADVANCES Preclinical studies presented in this review provide encouraging proof of concept regarding the therapeutic potential of stem cells for treating the adverse side effects associated with radiotherapy in different organs. Early-stage clinical data for radiation-induced lung, bone, and skin complications are promising and highlight the importance of selecting the appropriate stem cell type to stimulate tissue regeneration. CRITICAL ISSUES While therapeutic efficacy has been demonstrated in a variety of animal models and human trials, a range of additional concerns regarding stem cell transplantation for ameliorating radiation-induced normal tissue sequelae remain. Safety issues regarding teratoma formation, disease progression, and genomic stability along with technical issues impacting disease targeting, immunorejection, and clinical scale-up are factors bearing on the eventual translation of stem cell therapies into routine clinical practice. FUTURE DIRECTIONS Follow-up studies will need to identify the best possible stem cell types for the treatment of early and late radiation-induced normal tissue injury. Additional work should seek to optimize cellular dosing regimes, identify the best routes of administration, elucidate optimal transplantation windows for introducing cells into more receptive host tissues, and improve immune tolerance for longer-term engrafted cell survival into the irradiated microenvironment.
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Affiliation(s)
- Marc Benderitter
- 1 Laboratory of Radiopathology and Experimental Therapies, IRSN , PRP-HOM, SRBE, Fontenay-aux-Roses, France
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Zimmer P, Mierau A, Bloch W, Strüder HK, Hülsdünker T, Schenk A, Fiebig L, Baumann FT, Hahn M, Reinart N, Hallek M, Elter T. Post-chemotherapy cognitive impairment in patients with B-cell non-Hodgkin lymphoma: a first comprehensive approach to determine cognitive impairments after treatment with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone or rituximab and bendamustine. Leuk Lymphoma 2014; 56:347-52. [DOI: 10.3109/10428194.2014.915546] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Park JH, Bae SH. [A meta-analysis of chemotherapy related cognitive impairment in patients with breast cancer]. J Korean Acad Nurs 2013; 42:644-58. [PMID: 23221654 DOI: 10.4040/jkan.2012.42.5.644] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the cognitive effects of chemotherapy in patients with breast cancer. METHODS Using several databases, prospective studies were collected up to August 2011. Of 2,106 publications identified, 12 met the inclusion criteria, and 8 studies were used to estimate the effect size of chemotherapy on cognitive impairment. RESULTS Twelve studies were done since 2005 and most of the research was performed in Europe or North America. Eight studies were used to generate effect size across the cognitive domains of attention/concentration, verbal and visual memory, executive function, visuospatial skill, language, and subjective cognitive function. Each of the cognitive domains showed small effect sizes (-0.02 ~ -0.26), indicating diminished cognitive function for the chemotherapy group compared with non-chemotherapy groups. CONCLUSION Finding suggests that breast cancer patients who undergo chemotherapy may experience mild cognitive decline. Further study is needed to generate knowledge and guideline for interventions to address chemotherapy related cognitive impairment in these patients.
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Affiliation(s)
- Jin Hee Park
- College of Nursing, Ajou University, Suwon, Korea
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33
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Jansen CE. Cognitive Changes Associated with Cancer and Cancer Therapy: Patient Assessment and Education. Semin Oncol Nurs 2013; 29:270-9. [DOI: 10.1016/j.soncn.2013.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hodgson KD, Hutchinson AD, Wilson CJ, Nettelbeck T. A meta-analysis of the effects of chemotherapy on cognition in patients with cancer. Cancer Treat Rev 2012; 39:297-304. [PMID: 23219452 DOI: 10.1016/j.ctrv.2012.11.001] [Citation(s) in RCA: 176] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 10/30/2012] [Accepted: 11/04/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The aim of this meta-analysis was to assess whether chemotherapy-related cognitive impairment is consistently observed in cancer patients and to identify the areas of cognition affected. METHODS The meta-analysis included 13 studies and examined the effects of chemotherapy on seven different cognitive domains, across five cancer types. It was the intention of this meta-analysis to stringently exclude many studies, allowing for examination of cognition in carefully selected studies of chemotherapy recipients who do not have current mood or anxiety diagnoses (or psychiatric or substance abuse histories), without brain cancer and who have not had radiotherapy or hormone treatment. A moderator analysis examined whether patient age, treatment duration and time since treatment end significantly contributed to chemotherapy-related cognitive impairment. RESULTS Evidence for the presence of cognitive impairment following cancer treatment was established for executive function and memory. No relationship was found between cognitive impairment and time since treatment cessation but a significant negative relationship was found for treatment duration. Age had no impact on treatment-related cognitive impairment. CONCLUSIONS Future research must be conducted on chemotherapy-related cognitive impairment in cancer types such as lymphoma and leukaemia, which have received a moderate amount of attention and colorectal cancer, which has received little attention. This would enable us to determine the extent to which chemotherapy-related cognitive impairment is a universal phenomenon associated with the cancer experience and its treatment regardless of cancer type.
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Affiliation(s)
- Kristy D Hodgson
- School of Psychology, University of Adelaide, Adelaide, SA, Australia.
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Taillia H. [What's new concerning the chemobrain?]. Rev Neurol (Paris) 2012; 169:216-22. [PMID: 23107881 DOI: 10.1016/j.neurol.2012.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2011] [Revised: 05/22/2012] [Accepted: 06/20/2012] [Indexed: 01/15/2023]
Abstract
Chemobrain, a subtle cognitive decline after chemotherapy in non-cerebral cancer, remains a debated issue, which has nevertheless been widely described for more than 15 years in the international literature. This phenomenon is almost unknown in France to experts, neurologists and oncologists. Experimental evidence from animal models and from human functional imagery is reliable but contrasts with the observations made during clinical studies. Indeed, in clinical practice, the difficulty in proving the occurrence of chemobrain may be explained by a large number of methodological skews. However, considering the International Cognition and Cancer Task Force (ICCTF) guidelines, we propose a methodology applicable in daily practice and capable of improving awareness of this phenomenon.
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Affiliation(s)
- H Taillia
- Service de neurologie, hôpital d'instruction des armées du Val-de-Grâce, 74, boulevard de Port-Royal, 75005 Paris, France.
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Avisar A, River Y, Schiff E, Bar-Sela G, Steiner M, Ben-Arye E. Chemotherapy-related cognitive impairment: does integrating complementary medicine have something to add? Review of the literature. Breast Cancer Res Treat 2012; 136:1-7. [DOI: 10.1007/s10549-012-2211-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 08/12/2012] [Indexed: 02/06/2023]
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Kanaskie ML. Chemotherapy-Related Cognitive Change: A Principle-Based Concept Analysis. Oncol Nurs Forum 2012; 39:E241-8. [DOI: 10.1188/12.onf.e241-e248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Therapiefolgen bei Krebs-Langzeitüberlebenden. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2012; 55:493-500. [DOI: 10.1007/s00103-012-1448-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Galantino ML, Greene L, Daniels L, Dooley B, Muscatello L, O'Donnell L. Longitudinal Impact of Yoga on Chemotherapy-Related Cognitive Impairment and Quality of Life in Women with Early Stage Breast Cancer: A Case Series. Explore (NY) 2012; 8:127-35. [DOI: 10.1016/j.explore.2011.12.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Indexed: 11/12/2022]
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Christie LA, Acharya MM, Parihar VK, Nguyen A, Martirosian V, Limoli CL. Impaired Cognitive Function and Hippocampal Neurogenesis following Cancer Chemotherapy. Clin Cancer Res 2012; 18:1954-65. [DOI: 10.1158/1078-0432.ccr-11-2000] [Citation(s) in RCA: 224] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lyons L, ElBeltagy M, Umka J, Markwick R, Startin C, Bennett G, Wigmore P. Fluoxetine reverses the memory impairment and reduction in proliferation and survival of hippocampal cells caused by methotrexate chemotherapy. Psychopharmacology (Berl) 2011; 215:105-15. [PMID: 21181126 PMCID: PMC3072503 DOI: 10.1007/s00213-010-2122-2] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 11/25/2010] [Indexed: 12/18/2022]
Abstract
RATIONALE Adjuvant cancer chemotherapy can cause long-lasting, cognitive deficits. It is postulated that these impairments are due to these drugs targeting neural precursors within the adult hippocampus, the loss of which has been associated with memory impairment. OBJECTIVES The present study investigates the effects of the chemotherapy, methotrexate (MTX) on spatial working memory and the proliferation and survival of the neural precursors involved in hippocampal neurogenesis, and the possible neuroprotective properties of the antidepressant fluoxetine. METHODS Male Lister hooded rats were administered MTX (75 mg/kg, two i.v. doses a week apart) followed by leucovorin rescue (i.p. 18 h after MTX at 6 mg/kg and at 26, 42 and 50 h at 3 mg/kg) and/or fluoxetine (10 mg/kg/day in drinking water for 40 days). Memory was tested using the novel location recognition (NLR) test. Using markers, cell proliferation (Ki67) and survival (bromodeoxyuridine/BrdU), in the dentate gyrus were quantified. RESULTS MTX-treated rats showed a cognitive deficit in the NLR task compared with the vehicle and fluoxetine-treated groups. Cognitive ability was restored in the group receiving both MTX and fluoxetine. MTX reduced both the number of proliferating cells in the SGZ and their survival. This was prevented by the co-administration of fluoxetine, which alone increased cell numbers. CONCLUSIONS These results demonstrate that MTX induces an impairment in spatial working memory and has a negative long-term effect on hippocampal neurogenesis, which is counteracted by the co-administration of fluoxetine. If translatable to patients, this finding has the potential to prevent the chemotherapy-induced cognitive deficits experienced by many cancer survivors.
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Affiliation(s)
- Laura Lyons
- School of Biomedical Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK.
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Dépression, anxiété, fatigue et troubles cognitifs : leur contribution à la qualité de vie des patients atteints de tumeurs cérébrales — Revue de la littérature. PSYCHO-ONCOLOGIE 2010. [DOI: 10.1007/s11839-010-0255-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Oncology Nurse’s Perspective. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2010. [DOI: 10.1007/978-1-4419-6306-2_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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