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Avogaro A. Diabetes and obesity: the role of stress in the development of cancer. Endocrine 2024:10.1007/s12020-024-03886-1. [PMID: 38831236 DOI: 10.1007/s12020-024-03886-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024]
Abstract
Diabesity is a condition where an individual has both diabetes and obesity, which can lead to severe complications including cardiovascular disease, a leading cause of mortality. Recently, cancer has become a leading cause of excess hospitalizations, and both diabetes and obesity are associated with a higher risk of developing several types of cancer. In this review, we propose that chronic stress significantly increases this association. Managing diabetes and obesity is challenging as they both cause significant distress. The relationship between stress and cancer is interconnected, with anxiety and depression being common in cancer patients. Cancer diagnosis and treatment can cause lasting changes in the body's neuroendocrine system, with stress causing an excessive release of catecholamines and prostaglandins in patients undergoing cancer surgery, which promotes the spread of cancer to other parts of the body. Furthermore, stress could significantly increase the risk of cancer in patients with diabetes, obesity, or both.
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Affiliation(s)
- Angelo Avogaro
- Department of Medicine.(DIMED), Unit of Metabolic Disease, University of Padova University of Padova, Via Giustiniani 2, 35128, Padova, Italy.
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2
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Islam M, Behura SK. Molecular Regulation of Fetal Brain Development in Inbred and Congenic Mouse Strains Differing in Longevity. Genes (Basel) 2024; 15:604. [PMID: 38790233 PMCID: PMC11121069 DOI: 10.3390/genes15050604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/04/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
The objective of this study was to investigate gene regulation of the developing fetal brain from congenic or inbred mice strains that differed in longevity. Gene expression and alternative splice variants were analyzed in a genome-wide manner in the fetal brain of C57BL/6J mice (long-lived) in comparison to B6.Cg-Cav1tm1Mls/J (congenic, short-lived) and AKR/J (inbred, short-lived) mice on day(d) 12, 15, and 17 of gestation. The analysis showed a contrasting gene expression pattern during fetal brain development in these mice. Genes related to brain development, aging, and the regulation of alternative splicing were significantly differentially regulated in the fetal brain of the short-lived compared to long-lived mice during development from d15 and d17. A significantly reduced number of splice variants was observed on d15 compared to d12 or d17 in a strain-dependent manner. An epigenetic clock analysis of d15 fetal brain identified DNA methylations that were significantly associated with single-nucleotide polymorphic sites between AKR/J and C57BL/6J strains. These methylations were associated with genes that show epigenetic changes in an age-correlated manner in mice. Together, the finding of this study suggest that fetal brain development and longevity are epigenetically linked, supporting the emerging concept of the early-life origin of longevity.
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Affiliation(s)
- Maliha Islam
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Susanta K. Behura
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
- MU Institute for Data Science and Informatics, University of Missouri, Columbia, MO 65211, USA
- Interdisciplinary Reproduction and Health Group, University of Missouri, Columbia, MO 65211, USA
- Interdisciplinary Neuroscience Program, University of Missouri, Columbia, MO 65211, USA
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3
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Shcherbinina V, Pavlova M, Daev E, Dyuzhikova N. Rats Selected for Different Nervous Excitability: Long-Term Emotional-Painful Stress Affects the Dynamics of DNA Damage in Cells of Several Brain Areas. Int J Mol Sci 2024; 25:994. [PMID: 38256068 PMCID: PMC10815859 DOI: 10.3390/ijms25020994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
The maintenance of genome stability is critical for health, but during individual ontogenesis, different stressors affect DNA integrity, which can lead to functional and/or structural changes in the cells of target organs. In the nervous system, cell genome destabilization is associated with different neurological and psychiatric diseases, but experiments in vivo, where a link between stress and DNA instability has been demonstrated, are relatively rare. Here, we use rat strains selected for the contrast excitability of the tibialis nerve (n. tibialis) and nonselected Wistar rats to investigate the reasons for individual differences in developing post-stress pathologies. Previous research on the behavioral response of these strains to prolonged emotional-painful stress (PEPS) allows us to consider one strain as a model of post-traumatic stress disorder (PTSD) and another strain as a model of compulsive disorder (CD). We study DNA damage in the cells of the prefrontal cortex (PFC), hippocampus, and amygdala, regions involved in stress responses and the formation of post-stress dysfunctions. The evaluation of cell genome integrity via the comet assay shows different responses to PEPS in each brain area analyzed and for all strains used. This could help us to understand the reasons for individual differences in the consequences of stress and the pathophysiology of post-stress disease formation.
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Affiliation(s)
- Veronika Shcherbinina
- Laboratory of Higher Nervous Activity Genetics, Pavlov Institute of Physiology, Russian Academy of Sciences, nab. Makarova, 6, 199034 Saint Petersburg, Russia; (V.S.); (M.P.); or (E.D.)
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, Universitetskaya nab., 7–9, 199034 Saint Petersburg, Russia
| | - Marina Pavlova
- Laboratory of Higher Nervous Activity Genetics, Pavlov Institute of Physiology, Russian Academy of Sciences, nab. Makarova, 6, 199034 Saint Petersburg, Russia; (V.S.); (M.P.); or (E.D.)
| | - Eugene Daev
- Laboratory of Higher Nervous Activity Genetics, Pavlov Institute of Physiology, Russian Academy of Sciences, nab. Makarova, 6, 199034 Saint Petersburg, Russia; (V.S.); (M.P.); or (E.D.)
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, Universitetskaya nab., 7–9, 199034 Saint Petersburg, Russia
| | - Natalia Dyuzhikova
- Laboratory of Higher Nervous Activity Genetics, Pavlov Institute of Physiology, Russian Academy of Sciences, nab. Makarova, 6, 199034 Saint Petersburg, Russia; (V.S.); (M.P.); or (E.D.)
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4
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Guan Y, Shen J, Lu J, Fuemmeler BF, Shock LS, Zhao H. Association between allostatic load and breast cancer risk: a cohort study. Breast Cancer Res 2023; 25:155. [PMID: 38115125 PMCID: PMC10729373 DOI: 10.1186/s13058-023-01754-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Allostatic load (AL) reflects the collective load of chronic stress during lifetime. Previous studies have shown that higher AL is associated with poor clinical outcomes among breast cancer patients. However, the relationship between AL and breast cancer risk is still unclear. METHODS To fill the gap, we analyzed the association between AL and the development of breast cancer in 181,455 women identified from the UK Biobank. RESULTS During the follow-up from 2006 to 2020, 5,701 women were diagnosed with incident breast cancer. Significantly higher AL was observed among incident breast cancer cases than all study participants (mean: 2.77 vs. 2.63, P < 0.01). Univariate Cox regression analysis indicated the risk of breast cancer was increased by 5% per one AL unit increase (hazard ratio (HR) = 1.05, 95% confidence interval (CI) 1.04, 1.07). In multivariate analyses, after adjusting demographics, family history of breast cancer, reproductive factors, socioeconomic status, lifestyle factors, and breast cancer polygenic risk score (PRS), the significant association remained (HR = 1.05, 95%CI 1.03, 1.07). The significant relationship was further confirmed in the categorical analysis. Compared with women in the low AL group (AL: 0 ~ 2), those in the high AL group (AL: 3 ~ 11) had a 1.17-fold increased risk of breast cancer (HR = 1.17, 95%CI 1.11, 1.24). Finally, in the stratified analysis, joint effects on the risk of breast cancer were observed between the AL and selected known breast cancer risk factors, including age, family history of breast cancer, PRS, income, physical activity, and alcohol consumption. CONCLUSION In summary, those findings have demonstrated that higher AL was associated with an increased breast cancer risk in women. This association is likely independent of known breast cancer risk factors. Thus, the AL could be a valuable biomarker to help breast cancer risk prediction and stratification.
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Affiliation(s)
- Yufan Guan
- Departments of Family Medicine and Population Health, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Jie Shen
- Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA, 22903, USA
| | - Juan Lu
- Departments of Family Medicine and Population Health, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Bernard F Fuemmeler
- Departments of Family Medicine and Population Health, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Lisa S Shock
- Departments of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Hua Zhao
- Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA, 22903, USA.
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Shi Y, Gu L, Zhang X, Chen M. Traditional Chinese medicine mediated tumor suppression via regulating psychological factors. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2022. [DOI: 10.1016/j.medntd.2022.100162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Wang C, Shen Y, Ni J, Hu W, Yang Y. Effect of chronic stress on tumorigenesis and development. Cell Mol Life Sci 2022; 79:485. [PMID: 35974132 PMCID: PMC11071880 DOI: 10.1007/s00018-022-04455-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 11/03/2022]
Abstract
Chronic stress activates the sympathetic nervous system (SNS) and hypothalamic-pituitary-adrenal (HPA) axis to aggravates tumorigenesis and development. Although the importance of SNS and HPA in maintaining homeostasis has already attracted much attention, there is still a lot remained unknown about the molecular mechanisms by which chronic stress influence the occurrence and development of tumor. While some researches have already concluded the mechanisms underlying the effect of chronic stress on tumor, complicated processes of tumor progression resulted in effects of chronic stress on various stages of tumor remains elusive. In this reviews we concluded recent research progresses of chronic stress and its effects on premalignancy, tumorigenesis and tumor development, we comprehensively summarized the molecular mechanisms in between. And we highlight the available treatments and potential therapies for stressed patients with tumor.
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Affiliation(s)
- Chen Wang
- State Key Laboratory of Natural Medicines, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, No. 639 Long Mian Avenue, Jiangning District, Nanjing, 211198, Jiangsu, People's Republic of China
| | - Yumeng Shen
- State Key Laboratory of Natural Medicines, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, No. 639 Long Mian Avenue, Jiangning District, Nanjing, 211198, Jiangsu, People's Republic of China
| | - Jiaping Ni
- State Key Laboratory of Natural Medicines, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, No. 639 Long Mian Avenue, Jiangning District, Nanjing, 211198, Jiangsu, People's Republic of China
| | - Weiwei Hu
- State Key Laboratory of Natural Medicines, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, No. 639 Long Mian Avenue, Jiangning District, Nanjing, 211198, Jiangsu, People's Republic of China.
- Lingang Laboratory, Shanghai, 200032, People's Republic of China.
| | - Yong Yang
- State Key Laboratory of Natural Medicines, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, No. 639 Long Mian Avenue, Jiangning District, Nanjing, 211198, Jiangsu, People's Republic of China.
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Association of Allostatic Load and All Cancer Risk in the SWAN Cohort. Cancers (Basel) 2022; 14:cancers14133044. [PMID: 35804816 PMCID: PMC9264860 DOI: 10.3390/cancers14133044] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/13/2022] [Accepted: 06/16/2022] [Indexed: 11/23/2022] Open
Abstract
Elevated chronic stress is thought to increase cancer risk, though the results so far have been inconsistent. In this study, we assessed the relationship between allostatic load (AL), a biological indicator of chronic stress, and overall cancer risk in 3015 women who participated in the Study of Women’s Health Across the Nation (SWAN). Based on the distribution of AL, the study population was categorized into four groups, from the lowest (1st category) to the highest AL group (4th category). At baseline, African American and Hispanic women were more likely to be in the higher AL categories than White women (p < 0.001). In addition, women who smoked regularly, drank alcohol regularly, had no leisure physical activity, and had restless sleep were also more likely to be in the higher AL categories than their relative counterparts (p < 0.001). We also observed that women in the lower-income category with no health insurance were more likely to be in the higher AL category (p < 0.001). The study then found that women in the 4th category of AL (the highest AL group) had a 1.64-fold increased risk of overall cancer (Hazard ratio (HR): 1.64, 95% confidence interval (CI): 1.04, 2.59). The risk association was further strengthened after adjusting demographics, healthy behaviors, and socioeconomic factors with an HR of 2.08. In further analysis of individual biomarkers of AL score, we found that higher levels of triglyceride and CRP were associated with increased risk of cancer, highlighting the role of metabolic dysfunction and inflammation in the etiology of cancer development. In summary, we report that higher AL is associated with increased cancer risk.
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Muresanu C, Khalchitsky S. Updated Understanding of the Causes of Cancer, and a New Theoretical Perspective of Combinational Cancer Therapies, a Hypothesis. DNA Cell Biol 2022; 41:342-355. [PMID: 35262416 DOI: 10.1089/dna.2021.1118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We present an integrative understanding of cancer as a metabolic multifactorial, multistage disease. We focus on underlying genetics-environmental interactions, evidenced by telomere changes. A range of genetic and epigenetic factors, including physical agents and predisposing factors such as diet and lifestyle are included. We present a structured model of the causes of cancer, methods of investigations, approaches to cancer prevention, and polypharmaceutical multidisciplinary complex treatment within a framework of personalized medicine. We searched PubMed, National Cancer Institute online, and other databases for publications regarding causes of cancer, reports of novel mitochondrial reprogramming, epigenetic, and telomerase therapies and state-of-the-art investigations. We focused on multistep treatment protocols to enhance early detection of cancer, and elimination or neutralization of the causes and factors associated with cancer formation and progression.Our aim is to suggest a model therapeutic protocol that incorporates the patient's genome, metabolism, and immune system status; stage of tumor development; and comorbidity(ies), if any. Investigation and treatment of cancer is a challenge that requires further holistic studies that improve the quality of life and survival rates, but are most likely to aid prevention.
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Affiliation(s)
- Cristian Muresanu
- Research Center for Applied Biotechnology in Diagnosis and Molecular Therapies, Cluj-Napoca, Romania.,Department of Ecology, Taxonomy and Nature Conservation, Institute of Biology, Romanian Academy, Bucharest, Romania
| | - Sergei Khalchitsky
- H. Turner National Medical Research Center for Children's Orthopedics and Trauma Surgery of the Ministry of Health of the Russian Federation, Saint-Petersburg, Russia
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9
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Hong H, Ji M, Lai D. Chronic Stress Effects on Tumor: Pathway and Mechanism. Front Oncol 2022; 11:738252. [PMID: 34988010 PMCID: PMC8720973 DOI: 10.3389/fonc.2021.738252] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/26/2021] [Indexed: 12/24/2022] Open
Abstract
Chronic stress is an emotional experience that occurs when people encounter something they cannot adapt to. Repeated chronic stress increases the risk of a variety of diseases, such as cardiovascular disease, depression, endocrine disease, inflammation and cancer. A growing body of research has shown that there is a link between chronic stress and tumor occurrence in both animal studies and clinical studies. Chronic stress activates the neuroendocrine system (hypothalamic-pituitary-adrenal axis) and sympathetic nervous system. Stress hormones promote the occurrence and development of tumors through various mechanisms. In addition, chronic stress also affects the immune function of the body, leading to the decline of immune monitoring ability and promote the occurrence of tumors. The mechanisms of chronic stress leading to tumor include inflammation, autophagy and epigenetics. These factors increase the proliferation and invasion capacity of tumor cells and alter the tumor microenvironment. Antagonists targeting adrenergic receptors have played a beneficial role in improving antitumor activity, as well as chemotherapy resistance and radiation resistance. Here, we review how these mechanisms contribute to tumor initiation and progression, and discuss whether these molecular mechanisms might be an ideal target to treat tumor.
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Affiliation(s)
- Hanqing Hong
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Speciality, Shanghai, China
| | - Min Ji
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Speciality, Shanghai, China
| | - Dongmei Lai
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Speciality, Shanghai, China
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10
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Garcia-Laguna G, Gerena-Cruz MF, Sánchez AY, Monroy-Gomez J, Dueñas Z. Chronic stress caused by maternal separation is a possible risk factor for the development of 7,12-dimethyl benzo anthracene-induced breast tumors in rats. Physiol Behav 2021; 235:113399. [PMID: 33766603 DOI: 10.1016/j.physbeh.2021.113399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chronic stress has been investigated as a risk factor for breast cancer. Maternal separation (MS) of rats has been used as a chronic stress model that alters certain systemic functions, such as the immune response. OBJECTIVE The aim of this study was to determine the possible effect of MS on the development of breast tumors induced by 7,12-dimethyl benzo anthracene (DMBA). METHODOLOGY postnatal day (PND) 1 female Wistar rats were divided into four experimental groups that either were or were not subjected to MS and either received or did not receive DMBA. For MS, PND 1 to 21 pups were separated from their mothers for 360 min/day. On PND 30, carcinomas were induced in mammary glands using DMBA. Body weight was evaluated, and the injected region was palpated. In addition, the mammary glands were subjected to histological examination, and corticosterone levels were determined in all groups. RESULTS DMBA-induced groups had significantly lower body weight gain compared with the non-DMBA-induced groups. Maternal separation increased the incidence of preneoplastic changes and breast carcinogenesis in DMBA-treated animals compared with control animals. Corticosterone levels were increased in both DMBA-induced and MS groups without interaction. CONCLUSION MS is a possible risk factor for DMBA-induced preneoplastic changes and breast tumors in rats.
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Affiliation(s)
- Gabriela Garcia-Laguna
- Universidad del Rosario, Escuela de Medicina y Ciencias de la salud, Grupo de investigación Ciencias de la Rehabilitación, Centro de Estudios en Medición de la Actividad Física (CEMA), Bogotá, Colombia.
| | - María Fernanda Gerena-Cruz
- Grupo de Investigación Neurobiología y Comportamiento - Facultad de Medicina - Universidad Nacional de Colombia, Bogotá, D.C., Colombia
| | - Angel Yobany Sánchez
- Grupo de Patología - Facultad de Medicina - Universidad Nacional de Colombia, Bogotá, D.C., Colombia
| | - Jeison Monroy-Gomez
- Grupo de Investigación Capacidades Humanas, Salud e Inclusión - Institución Universitaria Escuela Colombiana de Rehabilitacion, Bogotá, D.C., Colombia
| | - Zulma Dueñas
- Grupo de Investigación Neurobiología y Comportamiento - Facultad de Medicina - Universidad Nacional de Colombia, Bogotá, D.C., Colombia
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Borgi M, Collacchi B, Ortona E, Cirulli F. Stress and coping in women with breast cancer:unravelling the mechanisms to improve resilience. Neurosci Biobehav Rev 2020; 119:406-421. [PMID: 33086128 DOI: 10.1016/j.neubiorev.2020.10.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 10/01/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022]
Abstract
Breast cancer diagnosis, surgery, adjuvant therapies and survivorship can all be extremely stressful. In women, concerns about body image are common as a result of the disease and can affect interpersonal relationships, possibly leading to social isolation, increasing the likelihood for mood disorders. This is particularly relevant as women are at greater risk to develop anxiety and depressive symptoms in response to highly stressful situations. Here we address the mechanisms and the pathways activated as a result of stress and contributing to changes in the pathophysiology of breast cancer, as well as the potential of stress management factors and interventions in buffering the deleterious effects of chronic stress in a gender perspective. An improved understanding of the biological mechanisms linking stress-management resources to health-relevant biological processes in breast cancer patients could reveal novel therapeutic targets and help clarifying which psychosocial interventions can improve cancer outcomes, ultimately offering a unique opportunity to improve contemporary cancer treatments.
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Affiliation(s)
- Marta Borgi
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Barbara Collacchi
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Elena Ortona
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Francesca Cirulli
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
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12
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Effects of age and social isolation on murine hippocampal biochemistry and behavior. Mech Ageing Dev 2020; 191:111337. [PMID: 32866520 DOI: 10.1016/j.mad.2020.111337] [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: 02/11/2020] [Revised: 07/29/2020] [Accepted: 08/19/2020] [Indexed: 12/20/2022]
Abstract
Social isolation (SI) is a major health risk in older people leading to cognitive decline. This study examined how SI and age influence performance in the novel object recognition (NOR) and elevated plus maze (EPM) tasks in C57BL/6 mice aged 3 or 24 months. Mice were group-housed (groups of 2-3) or isolated for 2 weeks prior to experimentation. Following NOR and EPM testing hippocampal norepinephrine (NE), 5, hydroxytryptamine (5-HT), 5, hydroxyindole acetic acid (5-HIAA), corticosterone (CORT) and interleukin-6 (IL-6) were determined and serum collected for basal CORT analysis. A separate set of mice were exposed to the forced swim test (FST), sacrificed immediately and serum CORT determined. SI impaired performance in the NOR and the FST, reduced hippocampal 5-HT, increased hippocampal IL-6 and increased serum CORT post-FST in young mice. Aged mice either failed to respond significantly to SI (NOR, FST, hippocampal 5-HT, serum CORT post FST) or SI had synergistic effects with age (hippocampal NE, 5-HIAA:5-HT). In conclusion, the lack of response to SI in the aged mice may affect health by preventing them adapting to new stressors, while the synergistic effects of SI with age would increase allostatic load and enhance the deleterious effects of the ageing process.
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Kruk J, Aboul-Enein BH, Bernstein J, Gronostaj M. Psychological Stress and Cellular Aging in Cancer: A Meta-Analysis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1270397. [PMID: 31814865 PMCID: PMC6877941 DOI: 10.1155/2019/1270397] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/17/2019] [Accepted: 09/28/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Epidemiological evidence continues to accumulate on the effect of psychosocial and behavioral factors in relation to cancer risk, progression, and mortality. MATERIAL AND METHODS This article presents the current evidence on the relationship between psychological stress and the risk of cancer and cellular aging process. Ten databases were searched to identify publications up to September 2019. References from retrieved articles were also reviewed. We included nine review papers and 26 cohort or case-control studies based on inclusion/exclusion criteria. RESULTS Results of previously published review articles did not show consistent evidence for the association between cancer risk and psychological stress, while previous evidence is stronger regarding the role of chronic psychological stress on cancer growth and metastasis and aging. In seven observational studies, severe life events, anxiety, depression, insufficient social support perception, or avoiding coping strategy were significantly associated with breast cancer risk. For other specific types of cancer, 11 studies reported increased risk factors for stressful life events, and two others found increased mortality or a decline in treatment adherence. CONCLUSIONS Recent epidemiological evidence generally suggests psychosocial factors may be considered risk factors for specific types of cancer and play a key role in the cellular aging process. Understanding molecular mechanisms of the stress interaction is important in cancer management and prevention. The psychological stressors should be considered when developing or evaluating change in psychosocial practice.
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Affiliation(s)
- Joanna Kruk
- Faculty of Physical Culture and Health, University of Szczecin, Piastów 40b/6, 71-004 Szczecin, Poland
| | - Basil Hassan Aboul-Enein
- Faculty of Public Health & Policy, London School of Hygiene & Tropical Medicine, 15-17 Tavistock Place, London WC1H 9SH, UK
| | - Joshua Bernstein
- College of Graduate Health Studies, A.T. Still University of Health Sciences, 800 W. Jefferson St., Kirksville, MO 63501, USA
| | - Magdalena Gronostaj
- Faculty of Medicine, Biotechnology and Laboratory Medicine, Pomeranian Medical University, Rybacka 1, 70-204 Szczecin, Poland
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Krusinska B, Wadolowska L, Slowinska MA, Biernacki M, Drozdowski M, Chadzynski T. Associations of Dietary Patterns and Metabolic-Hormone Profiles with Breast Cancer Risk: A Case-Control Study. Nutrients 2018; 10:nu10122013. [PMID: 30572623 PMCID: PMC6316263 DOI: 10.3390/nu10122013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is the most diagnosed cancer in women worldwide. Studies regarding complex breast cancer aetiology are limited and the results are inconclusive. We investigated the associations between dietary patterns (DPs), metabolic-hormone profiles (M-HPs), and breast cancer risk. This case-control study involved 420 women aged 40⁻79 years from north-eastern Poland, including 190 newly-diagnosed breast cancer cases. The serum concentration of lipid components, glucose, and hormones (oestradiol, progesterone, testosterone, prolactin, cortisol, insulin) was marked in 129 post-menopausal women (82 controls, 47 cases). The food frequency consumption was collected using a validated 62-item food frequency questionnaire. A posteriori DPs or M-HPs were derived with a Principal Component Analysis (PCA). Three DPs: 'Non-Healthy', 'Prudent', and 'Margarine and Sweetened Dairy' and two M-HPs: 'Metabolic-Syndrome' and 'High-Hormone' were identified. The 'Polish-adapted Mediterranean Diet' ('Polish-aMED') score was calculated. The risk of breast cancer risk was three-times higher (odds ratio (OR): 2.90; 95% confidence interval (95% Cl): 1.62⁻5.21; p < 0.001) in the upper tertile of the 'Non-Healthy' pattern (reference: bottom tertile) and five-times higher (OR: 5.34; 95% Cl: 1.84⁻15.48; p < 0.01) in the upper tertile of the 'High-Hormone' profile (reference: bottom tertile). There was a positive association of 'Metabolic-Syndrome' profile and an inverse association of 'Polish-aMED' score with the risk of breast cancer, which disappeared after adjustment for confounders. No significant association between 'Prudent' or 'Margarine and Sweetened Dairy' DPs and cancer risk was revealed. Concluding, a pro-healthy diet is insufficient to reduce the risk of breast cancer in peri- and postmenopausal women. The findings highlight the harmful effect of the 'High-Hormone' profile and the 'Non-Healthy' dietary pattern on breast cancer risk. In breast cancer prevention, special attention should be paid to decreasing the adherence to the 'Non-Healthy' pattern by reducing the consumption of highly processed food and foods with a high content of sugar and animal fat. There is also a need to monitor the concentration of multiple sex hormones in the context of breast cancer risk.
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Affiliation(s)
- Beata Krusinska
- Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, Sloneczna 45f, 10-718 Olsztyn, Poland.
| | - Lidia Wadolowska
- Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, Sloneczna 45f, 10-718 Olsztyn, Poland.
| | - Malgorzata Anna Slowinska
- Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, Sloneczna 45f, 10-718 Olsztyn, Poland.
| | - Maciej Biernacki
- Department of Surgery, University of Warmia and Mazury in Olsztyn, 11-041 Olsztyn, Poland.
| | - Marek Drozdowski
- Department of Laboratory Medicine, University of Warmia and Mazury in Olsztyn, 11-041 Olsztyn, Poland.
| | - Tomasz Chadzynski
- Department of Human Nutrition, University of Warmia and Mazury in Olsztyn, Sloneczna 45f, 10-718 Olsztyn, Poland.
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Long-term exposure to road traffic noise and incidence of breast cancer: a cohort study. Breast Cancer Res 2018; 20:119. [PMID: 30290832 PMCID: PMC6173937 DOI: 10.1186/s13058-018-1047-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 08/28/2018] [Indexed: 12/21/2022] Open
Abstract
Background Exposure to road traffic noise was associated with increased risk of estrogen receptor (ER)-negative (ER-) breast cancer in a previous cohort study, but not with overall or ER-positive (ER+) breast cancer, or breast cancer prognosis. We examined the association between long-term exposure to road traffic noise and incidence of breast cancer, overall and by ER and progesterone receptor (PR) status. Methods We used the data from a nationwide Danish Nurse Cohort on 22,466 female nurses (age > 44 years) who at recruitment in 1993 or 1999 reported information on breast cancer risk factors. We obtained data on the incidence of breast cancer from the Danish Cancer Registry, and on breast cancer subtypes by ER and PR status from the Danish Breast Cancer Cooperative Group, up to 31 December 2012. Road traffic noise levels at the nurses’ residences were estimated by the Nord2000 method between 1970 and 2013 as annual means of a weighted 24 h average (Lden) at the most exposed facade. We used time-varying Cox regression to analyze the associations between the 24-year, 10-year, and 1-year mean of Lden and breast cancer, separately for total breast cancer and by ER and PR status. Results Of the 22,466 women, 1193 developed breast cancer in total during 353,775 person-years of follow up, of whom 611 had complete information on ER and PR status. For each 10 dB increase in 24-year mean noise levels at their residence, we found a statistically significant 10% (hazard ratio and 95% confidence interval 1.10; 1.00–1.20) increase in total breast cancer incidence and a 17% (1.17; 1.02–1.33) increase in analyses based on 611 breast cancer cases with complete ER and PR information. We found positive, statistically significant association between noise levels and ER+ (1.23; 1.06–1.43, N = 494) but not ER- (0.93; 0.70–1.25, N = 117) breast cancers, and a stronger association between noise levels and PR+ (1.21; 1.02–1.42, N = 393) than between noise levels and PR- (1.10; 0.89–1.37, N = 218) breast cancers. Association between noise and ER+ breast cancer was statistically significantly stronger in nurses working night shifts (3.36; 1.48–7.63) than in those not working at night (1.21; 1.02–1.43) (p value for interaction = 0.05). Conclusion Long-term exposure to road traffic noise may increase risk of ER+ breast cancer. Electronic supplementary material The online version of this article (10.1186/s13058-018-1047-2) contains supplementary material, which is available to authorized users.
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Abstract
The current healthcare system is often as highly stressful environment for patients, their families, and for the employees of the system. Health leaders also experience stress, which can have profound repercussions if not well managed. This article describes the impact of stress on the brain and nervous system functioning of health leaders, then, drawing on evidence from the literature, presents a three-step model for managing stress at the individual, team/organizational, and system levels.
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Affiliation(s)
- Elizabeth Hartney
- 1 Centre for Health Leadership and Research, Royal Roads University, Victoria, British Columbia, Canada
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17
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Moreno-Villanueva M, von Scheven G, Feiveson A, Bürkle A, Wu H, Goel N. The degree of radiation-induced DNA strand breaks is altered by acute sleep deprivation and psychological stress and is associated with cognitive performance in humans. Sleep 2018; 41:4954606. [DOI: 10.1093/sleep/zsy067] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Maria Moreno-Villanueva
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Gudrun von Scheven
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Alan Feiveson
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
| | - Alexander Bürkle
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Honglu Wu
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
| | - Namni Goel
- Department of Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA
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18
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Park OH, Park J, Yu M, An HT, Ko J, Kim YK. Identification and molecular characterization of cellular factors required for glucocorticoid receptor-mediated mRNA decay. Genes Dev 2017; 30:2093-2105. [PMID: 27798850 PMCID: PMC5066615 DOI: 10.1101/gad.286484.116] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/08/2016] [Indexed: 11/24/2022]
Abstract
In this study, Park et al. investigated the molecular mechanisms regulating glucocorticoid receptor-mediated mRNA decay (GMD). The authors characterize the molecular details of GMD, identify specific factors required for efficient GMD, and perform RNA sequencing, identifying many endogenous GMD substrates. Glucocorticoid (GC) receptor (GR) has been shown recently to bind a subset of mRNAs and elicit rapid mRNA degradation. However, the molecular details of GR-mediated mRNA decay (GMD) remain unclear. Here, we demonstrate that GMD triggers rapid degradation of target mRNAs in a translation-independent and exon junction complex-independent manner, confirming that GMD is mechanistically distinct from nonsense-mediated mRNA decay (NMD). Efficient GMD requires PNRC2 (proline-rich nuclear receptor coregulatory protein 2) binding, helicase ability, and ATM-mediated phosphorylation of UPF1 (upstream frameshift 1). We also identify two GMD-specific factors: an RNA-binding protein, YBX1 (Y-box-binding protein 1), and an endoribonuclease, HRSP12 (heat-responsive protein 12). In particular, using HRSP12 variants, which are known to disrupt trimerization of HRSP12, we show that HRSP12 plays an essential role in the formation of a functionally active GMD complex. Moreover, we determine the hierarchical recruitment of GMD factors to target mRNAs. Finally, our genome-wide analysis shows that GMD targets a variety of transcripts, implicating roles in a wide range of cellular processes, including immune responses.
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Affiliation(s)
- Ok Hyun Park
- Creative Research Initiatives Center for Molecular Biology of Translation, Korea University, Seoul 02841, Republic of Korea.,Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Joori Park
- Creative Research Initiatives Center for Molecular Biology of Translation, Korea University, Seoul 02841, Republic of Korea.,Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Mira Yu
- Creative Research Initiatives Center for Molecular Biology of Translation, Korea University, Seoul 02841, Republic of Korea.,Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Hyoung-Tae An
- Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Jesang Ko
- Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Yoon Ki Kim
- Creative Research Initiatives Center for Molecular Biology of Translation, Korea University, Seoul 02841, Republic of Korea.,Division of Life Sciences, Korea University, Seoul 02841, Republic of Korea
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Yasuda MT, Sakakibara H, Shimoi K. Estrogen- and stress-induced DNA damage in breast cancer and chemoprevention with dietary flavonoid. Genes Environ 2017; 39:10. [PMID: 28163803 PMCID: PMC5286800 DOI: 10.1186/s41021-016-0071-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 12/08/2016] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is one of the most commonly diagnosed female cancers and a leading cause of cancer-related death in women. Multiple factors are responsible for breast cancer and heritable factors have received much attention. DNA damage in breast cancer is induced by prolonged exposure to estrogens, such as 17β-estradiol, daily social/psychological stressors, and environmental chemicals such as polycyclic aromatic hydrocarbons (PAHs) and heterocyclic amines (HCAs). DNA damage induced by estrogen and stress is an important factor in the pathogenesis and development of breast cancer and is now recognized as a critical provision for chemoprevention of breast cancer. In this review, we summarize the relationships between estrogen- and stress-induced DNA damage with regard to the pathogenesis and development of breast cancer. We also discuss recent investigations into chemoprevention using dietary flavonoids such as quercetin and isoflavones.
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Affiliation(s)
- Michiko T Yasuda
- School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526 Japan
| | - Hiroyuki Sakakibara
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki, 889-2192 Japan
| | - Kayoko Shimoi
- School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526 Japan
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20
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McGregor BA, Dolan ED, Murphy KM, Sannes TS, Highland KB, Albano DL, Ward AA, Charbonneau AM, Redman MW, Ceballos RM. Cognitive Behavioral Stress Management for Healthy Women at Risk for Breast Cancer: a Novel Application of a Proven Intervention. Ann Behav Med 2015; 49:873-84. [PMID: 26290001 PMCID: PMC4739817 DOI: 10.1007/s12160-015-9726-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Women at risk for breast cancer report elevated psychological distress, which has been adversely associated with cancer-relevant behaviors and biology. PURPOSE The present study sought to examine the effects of a 10-week cognitive behavioral stress management (CBSM) group intervention on distress among women with a family history of breast cancer. METHODS Participants were randomly assigned to CBSM (N = 82) or a wait-list comparison group (N = 76). Baseline to postintervention effects of CBSM on depressive symptoms and perceived stress were examined using hierarchical regression. RESULTS CBSM participants reported significantly lower posttreatment depressive symptoms (β = -0.17, p < 0.05) and perceived stress (β = -0.23, p < 0.05) than wait-list comparison participants. Additionally, greater relaxation practice predicted lower distress. CONCLUSIONS Group-based CBSM intervention is feasible and can reduce psychological distress among women with a family history of breast cancer. The present findings represent an encouraging avenue for the future application of CBSM. ( Clinicaltrials.gov number NCT00121160).
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Affiliation(s)
- Bonnie A McGregor
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA.
- Department of Health Services, School of Public Health and Community Medicine, University of Washington, Seattle, WA, USA.
| | - Emily D Dolan
- Shelter Research and Development, American Society for the Prevention of Cruelty to Animals, New York, NY, USA
| | - Karly M Murphy
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
| | - Timothy S Sannes
- Anschutz Medical Campus, University of Colorado Denver, Denver, CO, USA
| | | | - Denise L Albano
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
| | - Alison A Ward
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
| | - Anna M Charbonneau
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
| | - Mary W Redman
- Clinical Research, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
| | - Rachel M Ceballos
- Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M3-B232, Seattle, WA, 98109, USA
- Department of Health Services, School of Public Health and Community Medicine, University of Washington, Seattle, WA, USA
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Adrenergic DNA damage of embryonic pluripotent cells via β2 receptor signalling. Sci Rep 2015; 5:15950. [PMID: 26516061 PMCID: PMC4626766 DOI: 10.1038/srep15950] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 10/02/2015] [Indexed: 12/16/2022] Open
Abstract
Embryonic pluripotent cells are sensitive to genotoxicity though they need more stringent genome integrity to avoid compromising multiple cell lineages and subsequent generations. However it remains unknown whether the cells are susceptible to adrenergic stress which can induce somatic cell genome lesion. We have revealed that adrenergic stress mediators cause DNA damage of the cells through the β2 adrenergic receptor/adenylate cyclase/cAMP/PKA signalling pathway involving an induction of intracellular reactive oxygen species (ROS) accumulation. The adrenergic stress agonists adrenaline, noradrenaline, and isoprenaline caused DNA damage and apoptosis of embryonic stem (ES) cells and embryonal carcinoma stem cells. The effects were mimicked by β2 receptor-coupled signalling molecules and abrogated by selective blockade of β2 receptors and inhibition of the receptor signalling pathway. RNA interference targeting β2 receptors of ES cells conferred the cells the ability to resist the DNA damage and apoptosis. In addition, adrenergic stimulation caused a consistent accumulation of ROS in the cells and the effect was abrogated by β2 receptor blockade; quenching of ROS reversed the induced DNA damage. This finding will improve the understanding of the stem cell regulatory physiology/pathophysiology in an adrenergic receptor subtype signalling mechanism.
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22
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Lim SA, Cheong KJ. Regular Yoga Practice Improves Antioxidant Status, Immune Function, and Stress Hormone Releases in Young Healthy People: A Randomized, Double-Blind, Controlled Pilot Study. J Altern Complement Med 2015; 21:530-8. [DOI: 10.1089/acm.2014.0044] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Sung-Ah Lim
- Department of Beauty and Healthcare, College of Public Health Care, Daejeon University, Daejeon, Republic of Korea
| | - Kwang-Jo Cheong
- Department of Beauty and Healthcare, College of Public Health Care, Daejeon University, Daejeon, Republic of Korea
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23
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Stress hormones reduce the efficacy of paclitaxel in triple negative breast cancer through induction of DNA damage. Br J Cancer 2015; 112:1461-70. [PMID: 25880007 PMCID: PMC4453678 DOI: 10.1038/bjc.2015.133] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 03/05/2015] [Accepted: 03/12/2015] [Indexed: 12/31/2022] Open
Abstract
Background: The mechanisms by which stress hormones impact triple-negative breast cancer (TNBC) etiology and treatment are unclear. We have previously shown that stress hormones, cortisol, and catecholamines induce rapid DNA damage and impact DNA repair in NIH 3T3 fibroblasts. This study investigates whether stress hormones increase DNA damage in breast cancer cells and if this impacts drug efficacy. Methods: We first screened a panel of 39 breast cancer cell lines for expression of adrenergic and glucocorticoid receptors and examined if stress hormones induce DNA damage and alter cell cycle regulation in vitro. A TNBC xenograft model was used to assess the impact of restraint stress on tumour growth and chemosensitivity to paclitaxel. Results: We found that stress hormones induced DNA damage, phosphorylation of ATR, which was accompanied by an up-regulation of the G1 cell kinase inhibitor p21 and a cell cycle halt of TNBCs in the G1 phase. p21 knockdown abrogated G1 arrest by stress hormones. We also demonstrated that stress significantly decreased efficacy of paclitaxel. Conclusion: We describe a novel mechanism through which stress hormones can induce drug resistance to paclitaxel, which may have profound implications for treating drug resistance in patients with TNBC.
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Bull C, Christensen H, Fenech M. Cortisol is not associated with telomere shortening or chromosomal instability in human lymphocytes cultured under low and high folate conditions. PLoS One 2015; 10:e0119367. [PMID: 25748629 PMCID: PMC4352017 DOI: 10.1371/journal.pone.0119367] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 01/13/2015] [Indexed: 01/13/2023] Open
Abstract
Chronic psychological stress and nutritional deficiencies are factors that impact negatively on human health and disease risk. Chronic stress has been associated with accelerated leukocyte telomere shortening in numerous cohorts, however, a mechanistic link has proven elusive. This study tested the hypotheses that chronic exposure to the stress hormone, cortisol, causes telomere shortening and chromosome instability (CIN) in vitro, and that these effects would be further exacerbated by folate (vitamin B9) deficiency. Primary human lymphocytes were maintained in vitro for 12 days in medium containing either 25 nM folic acid (FA(low)) or 100 nM FA (FA(high)), together with either 0, 400, 1000 or 3500 nM cortisol. The interactive effects of cortisol and FA were examined by comparing telomere length (TL), biomarkers of DNA damage, and cytostasis. At day 12 TL was 5-17% longer in lymphocytes cultured in FA(low) conditions (mean ± SD;10.2% ± 1.6), compared with those in FA(high) medium (9.1% ± 1, p = 0.02). Refuting the hypothesis, TL was consistently greater in the presence of cortisol. The effect of FA deficiency on the frequency of DNA damage was significant for nucleoplasmic bridges, circular nuclei, micronuclei and nuclear buds, (p < 0.0001-0.001). The effect of cortisol, however, was negligible, only reaching statistical significance for the frequency of fused nuclei (p = 0.04). Cortisol was significantly associated with reduced cell division and growth and had an apparent protective effect on cell viability in the FA(low) conditions. Conclusions: Both chronic cortisol exposure, and folate deficiency, resulted in telomere elongation, however, the effect of cortisol was marginal relative to that of folate. Cortisol was not associated with increased chromosomal instability, but caused a significant reduction in cell division and growth. Together these results indicate that cortisol is not directly genotoxic and that the telomere shortening associated with increased psychological stress in vivo may not be explained by a direct effect of cortisol.
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Affiliation(s)
- Caroline Bull
- Nutritional Genomics and DNA Damage Diagnostics Laboratory, CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
- Department of Microbiology & Immunology, School of Molecular & Biomedical Science, University of Adelaide, Adelaide, South Australia, Australia
- * E-mail:
| | - Helen Christensen
- Black Dog Institute, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Michael Fenech
- Nutritional Genomics and DNA Damage Diagnostics Laboratory, CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
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26
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Zhao L, Xu JH. Role of adrenergic receptor signaling pathway in colorectal cancer. Shijie Huaren Xiaohua Zazhi 2014; 22:5285-5290. [DOI: 10.11569/wcjd.v22.i34.5285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer is one of the most common malignancies. During the past decades, studies have continued to shed light on the role of adrenergic receptor signaling in cancer. Preclinical studies have shown that adrenergic receptor signaling is involved in colon cancer progression and metastasis and have implicated that stress hormones or behavioral changes are highly associated with tumor formation and progression. Therefore, further understanding of the role of the adrenergic receptor (AR) signaling pathway in colorectal cancer progression and metastasis will be of great value in developing therapeutic strategies for this malignancy.
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Bhargava S. Increased DHT levels in androgenic alopecia have been selected for to protect men from prostate cancer. Med Hypotheses 2014; 82:428-32. [DOI: 10.1016/j.mehy.2014.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 12/31/2013] [Accepted: 01/18/2014] [Indexed: 10/25/2022]
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Zhang L, Peng XM, Damu GLV, Geng RX, Zhou CH. Comprehensive review in current developments of imidazole-based medicinal chemistry. Med Res Rev 2013; 34:340-437. [PMID: 23740514 DOI: 10.1002/med.21290] [Citation(s) in RCA: 473] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Imidazole ring is an important five-membered aromatic heterocycle widely present in natural products and synthetic molecules. The unique structural feature of imidazole ring with desirable electron-rich characteristic is beneficial for imidazole derivatives to readily bind with a variety of enzymes and receptors in biological systems through diverse weak interactions, thereby exhibiting broad bioactivities. The related research and developments of imidazole-based medicinal chemistry have become a rapidly developing and increasingly active topic. Particularly, numerous imidazole-based compounds as clinical drugs have been extensively used in the clinic to treat various types of diseases with high therapeutic potency, which have shown the enormous development value. This work systematically gives a comprehensive review in current developments of imidazole-based compounds in the whole range of medicinal chemistry as anticancer, antifungal, antibacterial, antitubercular, anti-inflammatory, antineuropathic, antihypertensive, antihistaminic, antiparasitic, antiobesity, antiviral, and other medicinal agents, together with their potential applications in diagnostics and pathology. It is hoped that this review will be helpful for new thoughts in the quest for rational designs of more active and less toxic imidazole-based medicinal drugs, as well as more effective diagnostic agents and pathologic probes.
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Affiliation(s)
- Ling Zhang
- Laboratory of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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Hasan S, Fatima N, Bilal N, Suhail N, Fatima S, Morgan EN, Aldebasy Y, Alzohairy MA, Banu N. Effect of chronic unpredictable stress on short term dietary restriction and its modulation by multivitamin-mineral supplementation. Appetite 2013; 65:68-74. [DOI: 10.1016/j.appet.2013.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 01/08/2013] [Accepted: 02/03/2013] [Indexed: 12/31/2022]
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