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Lopes M, Vieira de Castro J, Pojo M, Gonçalves CS, Martins EP, Coimbra B, Sotiropoulos I, Sousa N, Rodrigues AJ, Costa BM. Chronic Stress Does Not Influence the Survival of Mouse Models of Glioblastoma. Front Oncol 2022; 12:856210. [PMID: 35402232 PMCID: PMC8990973 DOI: 10.3389/fonc.2022.856210] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/28/2022] [Indexed: 11/28/2022] Open
Abstract
The existence of a clear association between stress and cancer is still a matter of debate. Recent studies suggest that chronic stress is associated with some cancer types and may influence tumor initiation and patient prognosis, but its role in brain tumors is not known. Glioblastoma (GBM) is a highly malignant primary brain cancer, for which effective treatments do not exist. Understanding how chronic stress, or its effector hormones glucocorticoids (GCs), may modulate GBM aggressiveness is of great importance. To address this, we used both syngeneic and xenograft in vivo orthotopic mouse models of GBM, in immunocompetent C57BL/6J or immunodeficient NSG mice, respectively, to evaluate how different paradigms of stress exposure could influence GBM aggressiveness and animals’ overall survival (OS). Our results demonstrated that a previous exposure to exogenous corticosterone administration, chronic restraint stress, or chronic unpredictable stress do not impact the OS of these mice models of GBM. Concordantly, ex vivo analyses of various GBM-relevant genes showed similar intra-tumor expression levels across all experimental groups. These findings suggest that corticosterone and chronic stress do not significantly affect GBM aggressiveness in murine models.
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Affiliation(s)
- Marta Lopes
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Vieira de Castro
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Marta Pojo
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Céline S Gonçalves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Eduarda P Martins
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Bárbara Coimbra
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ioannis Sotiropoulos
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana João Rodrigues
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Bruno M Costa
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Verza FA, Valente VB, Oliveira LK, Kayahara GM, Crivelini MM, Furuse C, Biasoli ÉR, Miyahara GI, Oliveira SHP, Bernabé DG. Social isolation stress facilitates chemically induced oral carcinogenesis. PLoS One 2021; 16:e0245190. [PMID: 33411841 PMCID: PMC7790246 DOI: 10.1371/journal.pone.0245190] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 12/25/2020] [Indexed: 02/05/2023] Open
Abstract
Social isolation has affected a large number of people and may lead to impairment of physical and mental health. Although stress resulting from social isolation may increase cancer progression, its interference on tumorigenesis is poorly known. In this study, we used a preclinical model to evaluate the effects of social isolation stress on chemically induced oral carcinogenesis. Sixty-two 21-day-old male Wistar rats were divided into isolated and grouped groups. After 90 days of age, the rats from both groups underwent oral carcinogenesis with 4-nitroquinoline 1-oxide (4NQO) for 20 weeks. All rats were assessed for depressive-like behavior and euthanized for oral squamous cell carcinoma (OSCC) diagnosis and measurement of inflammatory mediators in the tumor microenvironment. Social isolation stress increased the OSCC occurrence by 20.4% when compared to control. Isolated rats also showed higher tumor volume and cachexia than the grouped rats. Social isolation did not induce changes in the depressive-like behavior after carcinogenic induction. Tumors from stressed rats had increased levels of the inflammatory mediators, TNF-alpha, IL1-beta and MCP-1. The concentrations of TNF-alpha and MCP-1 were significantly increased in the large tumors from isolated animals. Higher tumor levels of TNF-alpha, IL-6, IL1-beta and MCP-1 were positively correlated with OSCC growth. This study provides the first evidence that social isolation stress may facilitate OSCC occurrence and tumor progression, an event accompanied by increased local levels of inflammatory mediators.
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Affiliation(s)
- Flávia Alves Verza
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Vitor Bonetti Valente
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Lia Kobayashi Oliveira
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Giseli Mitsuy Kayahara
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Marcelo Macedo Crivelini
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Cristiane Furuse
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Éder Ricardo Biasoli
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Glauco Issamu Miyahara
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Sandra Helena Penha Oliveira
- Department of Basic Sciences, Laboratory of Immunopharmacology, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Daniel Galera Bernabé
- Laboratory of Psychoneuroimmunology, Psychosomatic Research Center and Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
- * E-mail:
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The 4-NQO mouse model: An update on a well-established in vivo model of oral carcinogenesis. Methods Cell Biol 2020; 163:197-229. [PMID: 33785166 DOI: 10.1016/bs.mcb.2020.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The early detection and management of oral premalignant lesions (OPMDs) improve their outcomes. Animal models that mimic histological and biological processes of human oral carcinogenesis may help to improve the identification of OPMD at-risk of progression into oral squamous cell carcinoma and to develop preventive strategies for the entire field of cancerization. No animal model is perfectly applicable for investigating human oral carcinogenesis. However, the 4-nitroquinoline 1-oxide (4-NQO) mouse model is well established and mimics several morphological, histological, genomic and molecular features of human oral carcinogenesis. Some of the reasons for the success of this model include its reproducible experimental conditions with limited variation, the possibility of realizing longitudinal studies with invasive intervention or gene manipulation, and sample availability for all stages of oral carcinogenesis, especially premalignant lesions. Moreover, the role of histological and molecular alterations in the field of cancerization (i.e., macroscopically healthy mucosa exposed to a carcinogen) during oral carcinogenesis can be easily explored using this model. In this review, we discuss the advantages and drawbacks of this model for studying human oral carcinogenesis. In summary, the 4-NQO-induced murine oral cancer model is relevant for investigating human oral carcinogenesis, including the immune microenvironment, and for evaluating therapeutic and chemoprevention agents.
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Geraniol attenuates 4NQO-induced tongue carcinogenesis through downregulating the activation of NF-κB in rats. Mol Cell Biochem 2017; 434:7-15. [DOI: 10.1007/s11010-017-3030-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 04/01/2017] [Indexed: 12/24/2022]
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Mouchref Hamasni F, El Hajj F. Expression of Bone Morphogenetic Protein-2 and Histological Differentiation of Oral Squamous Cell Carcinomas. Asian Pac J Cancer Prev 2016; 17:5243-5245. [PMID: 28125868 PMCID: PMC5454665 DOI: 10.22034/apjcp.2016.17.12.5243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background and Objective : Bone morphogenic protein-2 (BMP-2) plays an essential role in mesenchymal cell
differentiation into osteoblasts، through many intracellular pathways which may also be active in tumors. Invasive
oral squamous cell carcinomas account for more than 90% of head and neck malignancies in many cancer registries.
They are classified into three types according to epithelial cell differentiation. The present study aimed to identify any
relation between BMP-2 expression and tumor histology. Materials and methods: BMP-2 expression was compared
immunohistochemically among 30 cases (19 male and 11 female, mean age 48 years) of oral squamous cell carcinoma,
Division was into 3 groups (each containing 10 cases) according to the histological grade. Results: No significant
correlation between BMP-2 expression and histological grade was observed. Changes in localization and cytoplasmic
staining were also not apparent. Conclusion: From the results of this study BMP-2 does not appear to have any
application as a prognostic marker for oral squamous cell carcinomas.
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Partecke LI, Speerforck S, Käding A, Seubert F, Kühn S, Lorenz E, Schwandke S, Sendler M, Keßler W, Trung DN, Oswald S, Weiss FU, Mayerle J, Henkel C, Menges P, Beyer K, Lerch MM, Heidecke CD, von Bernstorff W. Chronic stress increases experimental pancreatic cancer growth, reduces survival and can be antagonised by beta-adrenergic receptor blockade. Pancreatology 2016; 16:423-33. [PMID: 27083074 DOI: 10.1016/j.pan.2016.03.005] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 02/17/2016] [Accepted: 03/06/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Chronic stress could promote tumour growth and reduce survival of pancreatic cancer patients via beta-adrenergic receptors of tumour cells. We have tested the impact of chronic acoustic and restraint stress on tumour development in an orthotopic syngeneic murine model of pancreatic cancer. METHODS AND RESULTS Tumour-bearing C57BL/6 mice exposed to chronic stress had 45% (p = 0.0138) higher circulating steroid and 111% (p = 0.0052) higher adrenal tyrosine hydroxylase levels. Their immune response was significantly suppressed: The in vitro LPS response of splenocytes was significantly reduced regarding Th1- and Th2-cytokines including IFN-gamma, IL-6, IL-10 and MCP-1 (0.0011 < p < 0.043). Also, tumours of stressed mice showed a tendency towards fewer total CD4 cells, more regulatory T cells (Treg), less T cell/tumour cell contacts and a reduction of CTLA-4 in CD4 cells (p > 0.05). TGF-beta in vitro was increased by 23.4% using catecholamines (p < 0.012) and in vivo employing chronic stress (p < 0.001). After 5 weeks tumour volumes were 130% (p = 0.0061) larger and median survival reduced by 13.5% (p = 0.0058). Tumours expressed more VEGF (p = 0.0334), had greater microvessel densities (p = 0.047), and an increased MMP-9 expression (p = 0.0456). Beta-catecholamines increased proliferation in tumour cells by 18% (p < 0.0001) and migration by 78% (p = 0.0348) whereas the beta-blocker propranolol reduced these effects by 25% (p < 0.0001) and 53% (p = 0.045), respectively. When stressed tumour-bearing animals were treated with propranolol tumour volumes were reduced by 69% (p = 0.0088) and survival improved by 14% (p < 0.0058). CONCLUSIONS The potential treatment with beta-blockers of patients with pancreatic cancer or other malignancies should be further evaluated as an adjuvant anti-neoplastic agent in clinical trials.
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Affiliation(s)
- Lars Ivo Partecke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Sven Speerforck
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - André Käding
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Florian Seubert
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Sandra Kühn
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Eric Lorenz
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Sebastian Schwandke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Matthias Sendler
- Department of Medicine A, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Wolfram Keßler
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Dung Nguyen Trung
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Stefan Oswald
- Institute of Pharmacology, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Frank Ulrich Weiss
- Department of Medicine A, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Julia Mayerle
- Department of Medicine A, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Christin Henkel
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Pia Menges
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Katharina Beyer
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Claus-Dieter Heidecke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany
| | - Wolfram von Bernstorff
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine, Ernst-Moritz-Arndt-University, Greifswald, Germany.
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Droguett D, Castillo C, Leiva E, Theoduloz C, Schmeda-Hirschmann G, Kemmerling U. Efficacy of quercetin against chemically induced murine oral squamous cell carcinoma. Oncol Lett 2015; 10:2432-2438. [PMID: 26622865 DOI: 10.3892/ol.2015.3598] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 06/22/2015] [Indexed: 01/16/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the most common form of head and neck cancer, and oxidative damage is associated with the development of OSCCs. Antioxidants have therefore been proposed for use as chemoprotective agents against different types of cancer. In the present study, the effect of the antioxidant quercetin, administered at doses of 10 and 100 mg/kg/day, was investigated in an experimental murine model of 4-nitroquinoline 1-oxide (4-NQO)-induced carcinogenesis. The survival of the treated animals, the plasmatic levels of reduced glutathione and the type and severity of lesions (according the International Histological Classification of Tumors and Bryne's Multifactorial Grading System for the Invasive Tumor Front) were assessed. Additionally, the organization of the extracellular matrix was analyzed by carbohydrate and collagen histochemistry, and immunohistochemistry was used to assess the expression of the tumor markers proliferating cell nuclear antigen and mutated p53. The results indicate that, despite the promising effect of quercetin in other studies, this drug is ineffective as a chemoprotective agent against 4-NQO-induced OSCC in mice at the assayed doses.
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Affiliation(s)
- Daniel Droguett
- Department of Stomatology, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile ; Program of Anatomy and Developmental Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380453, Chile
| | - Christian Castillo
- Program of Anatomy and Developmental Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380453, Chile
| | - Elba Leiva
- Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
| | - Cristina Theoduloz
- Institute of Chemistry of Natural Resources, University of Talca, Talca 3460000, Chile
| | | | - Ulrike Kemmerling
- Program of Anatomy and Developmental Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380453, Chile
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Rivera C, Venegas B. Histological and molecular aspects of oral squamous cell carcinoma (Review). Oncol Lett 2014; 8:7-11. [PMID: 24959211 PMCID: PMC4063640 DOI: 10.3892/ol.2014.2103] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 02/13/2014] [Indexed: 12/12/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) represents 95% of all forms of head and neck cancer, and over the last decade its incidence has increased by 50%. Oral carcinogenesis is a multistage process, which simultaneously involves precancerous lesions, invasion and metastasis. Degradation of the cell cycle and the proliferation of malignant cells results in the loss of control mechanisms that ensure the normal function of tissues. The aim of the current review is to present the histopathological features of OSCC, including potentially malignant changes, the international classification of tumors, the tumor invasion front and tumor biomarkers (Ki-67, p53, homeobox genes and collagen type IV), as well as the tumor microenvironment and function of cancer-associated fibroblasts in the most common type of oral cancer that is encountered by dental surgeons. In OSCC, associations have been identified between the proliferation, basal lamina degradation and connective tissue modulation. Therefore, the comparison of these factors with the survival time of OSCC patients from the histopathological diagnosis is of interest.
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Affiliation(s)
- César Rivera
- Unit of Histology and Embryology, Department of Basic Biomedical Sciences, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile ; Biomedical Sciences Master Program, Oral Pathology Mention, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
| | - Bernardo Venegas
- Unit of Oral Pathology, Department of Dentistry, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
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Lin Q, Wang F, Yang R, Zheng X, Gao H, Zhang P. Effect of chronic restraint stress on human colorectal carcinoma growth in mice. PLoS One 2013; 8:e61435. [PMID: 23585898 PMCID: PMC3621827 DOI: 10.1371/journal.pone.0061435] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 03/13/2013] [Indexed: 12/31/2022] Open
Abstract
Stress alters immunological and neuroendocrinological functions. An increasing number of studies indicate that chronic stress can accelerate tumor growth, but its role in colorectal carcinoma (CRC) progression is not well understood. The aim of this study is to investigate the effects of chronic restraint stress (CRS) on CRC cell growth in nude mice and the possible underlying mechanisms. In this study, we showed that CRS increased the levels of plasma catecholamines including epinephrine (E) and norepinephrine (NE), and stimulated the growth of CRC cell-derived tumors in vivo. Treatment with the adrenoceptor (AR) antagonists phentolamine (PHE, α-AR antagonist) and propranolol (PRO, β-AR antagonist) significantly inhibited the CRS-enhanced CRC cell growth in nude mice. In addition, the stress hormones E and NE remarkably enhanced CRC cell proliferation and viability in culture, as well as tumor growth in vivo. These effects were antagonized by the AR antagonists PHE and PRO, indicating that the stress hormone-induced CRC cell proliferation is AR dependent. We also observed that the β-AR antagonists atenolol (ATE, β1- AR antagonist) and ICI 118,551 (ICI, β2- AR antagonist) inhibited tumor cell proliferation and decreased the stress hormone-induced phosphorylation of extracellular signal-regulated kinases-1/2 (ERK1/2) in vitro and in vivo. The ERK1/2 inhibitor U0126 also blocked the function of the stress hormone, suggesting the involvement of ERK1/2 in the tumor-promoting effect of CRS. We conclude that CRS promotes CRC xenograft tumor growth in nude mice by stimulating CRC cell proliferation through the AR signaling-dependent activation of ERK1/2.
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Affiliation(s)
- Qiang Lin
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Feifei Wang
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Rong Yang
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Xinmin Zheng
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
| | - Huibao Gao
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
- * E-mail: (PZ); (HBG)
| | - Ping Zhang
- Department of Biochemistry and Molecular Cell Biology, Institute of Medical Science, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
- * E-mail: (PZ); (HBG)
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Rivera C, Monsalve F, Suazo I, Becerra J. Stress increases periodontal inflammation. Exp Ther Med 2012; 4:883-888. [PMID: 23226743 PMCID: PMC3493748 DOI: 10.3892/etm.2012.675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 08/09/2012] [Indexed: 11/21/2022] Open
Abstract
This study aimed to examine the effect of chronic restraint stress (RS) on the severity of experimental periodontal disease in rats. A total of 32 male Sprague Dawley (SD) rats were divided into four groups: i) Rats receiving two treatment regimens, chronic stress induced by movement restriction in acrylic cylinders for 1–1.5 h daily and induction of experimental periodontal disease, using a nylon ligature which was placed around the first left mandibular molars (n=8); ii) induction of periodontal disease, without RS (n=8); iii) RS (n=8) and iv) control (n=8). After 15 days, blood samples were obtained, and blood glucose levels and the corticosterone concentration were measured as stress markers. The severity of periodontal disease was analyzed according to the level of gingival and bone inflammation, leading to compromise of the teeth involved. Chronic stress was induced with movement restriction (P≤0.05, Mann-Whitney U-test) and increased the severity (P≤0.05, Mann-Whitney U-test) of experimental perio dontal disease in rats, according to the level of gingival and bone inflammation around the first left mandibular molars. The results of the present study showed that RS modulates periodontal inflammation and that the rat model described herein is suitable for investigating the association between stress and periodontal disease.
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Affiliation(s)
- César Rivera
- Unit of Histology and Embryology, Department of Basic Biomedical Sciences, Faculty of Health Sciences; ; Master Program in Biomedical Sciences, Oral Pathology mention, University of Talca, Talca
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RUZ IVONNEANDREAMUÑOZ, OSSA DANIELANDRÉSDROGUETT, TORRES WENDYKARINADONOSO, KEMMERLING ULRIKE, ROJAS BERNARDOARTUROVENEGAS, MARTÍNEZ CÉSARANDRÉSRIVERA. Nucleolar organizer regions in a chronic stress and oral cancer model. Oncol Lett 2012; 3:541-544. [PMID: 22740947 PMCID: PMC3362340 DOI: 10.3892/ol.2011.514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 12/01/2011] [Indexed: 11/05/2022] Open
Abstract
This study aimed to examine the role of chronic restraint stress (RS) on oral squamous cell carcinomas induced by 4-nitroquinoline-1-oxide (4-NQO) in CF-1 mouse tongues, measured by the expression of argyrophilic staining of nucleolar organizer regions (AgNOR). Thirty one samples of lingual epithelial tissue of CF-1 mice with a diagnosis of oral squamous cell carcinoma (OSSC) were assigned to two experimental groups: the RS/4-NQO group, where animals received RS and induction of oral chemical carcinogenesis (n=17); and the 4-NQO group, where animals received induction of chemical carcinogenesis without restraint stress (n=14). The mean number and distribution pattern of AgNOR were recorded. The mean AgNOR number per cell was found to be slightly higher in the 4-NQO group. AgNOR in the RS/4-NQO group revealed a higher tendency to be arranged in a clumped distribution compared to the 4-NQO group. No statistically significant difference was found between the groups. In conclusion, the induction of chronic restraint stress in CF-1 mice does not increase the number or affect the distribution pattern of AgNORs in OSSC induced by 4-NQO.
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Affiliation(s)
| | | | | | - ULRIKE KEMMERLING
- Department of Stomatology, Faculty of Health Sciences, University of Talca
- Program of Anatomy and Developmental Biology, Institute for Biomedical Science (ICBM), Faculty of Medicine, University of Chile
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