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Zanetti M, Xian S, Dosset M, Carter H. The Unfolded Protein Response at the Tumor-Immune Interface. Front Immunol 2022; 13:823157. [PMID: 35237269 PMCID: PMC8882736 DOI: 10.3389/fimmu.2022.823157] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/26/2022] [Indexed: 12/14/2022] Open
Abstract
The tumor-immune interface has surged to primary relevance in an effort to understand the hurdles facing immune surveillance and cancer immunotherapy. Reports over the past decades have indicated a role for the unfolded protein response (UPR) in modulating not only tumor cell fitness and drug resistance, but also local immunity, with emphasis on the phenotype and altered function of immune cells such as myeloid cells and T cells. Emerging evidence also suggests that aneuploidy correlates with local immune dysregulation. Recently, we reported that the UPR serves as a link between aneuploidy and immune cell dysregulation in a cell nonautonomous way. These new findings add considerable complexity to the organization of the tumor microenvironment (TME) and the origin of its altered function. In this review, we summarize these data and also discuss the role of aneuploidy as a negative regulator of local immunity.
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Affiliation(s)
- Maurizio Zanetti
- The Laboratory of Immunology, Department of Medicine and Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
- *Correspondence: Maurizio Zanetti, ; orcid.org/0000-0001-6346-8776
| | - Su Xian
- Division of Medical Genetics, Department of Medicine, Bioinformatics and System Biology Program, University of California San Diego, La Jolla, CA, United States
| | - Magalie Dosset
- The Laboratory of Immunology, Department of Medicine and Moores Cancer Center, University of California San Diego, La Jolla, CA, United States
| | - Hannah Carter
- Division of Medical Genetics, Department of Medicine, Bioinformatics and System Biology Program, University of California San Diego, La Jolla, CA, United States
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Strong EA, Park SH, Ethun CG, Chow B, King D, Bedi M, Charlson J, Mogal H, Tsai S, Christians K, Tran TB, Poultsides G, Grignol V, Howard JH, Tseng J, Roggin KK, Chouliaras K, Votanopoulos K, Cullinan D, Fields RC, Gamblin TC, Cardona K, Clarke CN. High neutrophil-lymphocyte ratio is not independently associated with worse survival or recurrence in patients with extremity soft tissue sarcoma. Surgery 2020; 168:760-767. [PMID: 32736869 DOI: 10.1016/j.surg.2020.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/21/2020] [Accepted: 06/10/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Soft tissue sarcomas are a heterogenous group of neoplasms without well-validated biomarkers. Cancer-related inflammation is a known driver of tumor growth and progression. Recent studies have implicated a high circulating neutrophil-lymphocyte ratio as a surrogate marker for the inflammatory tumor microenvironment and a poor prognosticator in multiple solid tumors, including colorectal and pancreatic cancers. The impact of circulating neutrophil-lymphocyte ratio in soft tissue sarcomas has yet to be elucidated. METHODS We performed a retrospective analysis of patients undergoing curative resection for primary or recurrent extremity soft tissue sarcomas at academic centers within the US Sarcoma Collaborative. Neutrophil-lymphocyte ratio was calculated retrospectively in treatment-naïve patients using blood counts at or near diagnosis. RESULTS A high neutrophil-lymphocyte ratio (≥4.5) was associated with worse survival on univariable analysis in patients with extremity soft tissue sarcomas (hazard ratio 2.07; 95% confidence interval, 1.54-2.8; P < .001). On multivariable analysis, increasing age (hazard ratio 1.03; 95% confidence interval, 1.02-1.04; P < .001), American Joint Committee on Cancer T3 (hazard ratio 1.89; 95% confidence interval, 1.16-3.09; P = .011), American Joint Committee on Cancer T4 (hazard ratio 2.36; 95% confidence interval, 1.42-3.92; P = .001), high tumor grade (hazard ratio 4.56; 95% confidence interval, 2.2-9.45; P < .001), and radiotherapy (hazard ratio 0.58; 95% confidence interval, 0.41-0.82; P = .002) were independently predictive of overall survival, but a high neutrophil-lymphocyte ratio was not predictive of survival (hazard ratio 1.26; 95% confidence interval, 0.87-1.82; P = .22). CONCLUSION Tumor inflammation as measured by high pretreatment neutrophil-lymphocyte ratio was not independently associated with overall survival in patients undergoing resection for extremity soft tissue sarcomas.
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Affiliation(s)
- Erin A Strong
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | | | - Cecilia G Ethun
- Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Bonnie Chow
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - David King
- Department of Orthopaedic Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - Meena Bedi
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI
| | - John Charlson
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Harveshp Mogal
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - Susan Tsai
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | | | - Thuy B Tran
- Department of Surgery, Stanford University, Palo Alto, CA
| | | | - Valerie Grignol
- Department of Surgery, The Ohio State University, Columbus, OH
| | | | - Jennifer Tseng
- Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Kevin K Roggin
- Department of Surgery, University of Chicago Medicine, Chicago, IL
| | | | | | | | - Ryan C Fields
- Department of Surgery, Washington University, St. Louis, MO
| | - T Clark Gamblin
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - Kenneth Cardona
- Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
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Marin DE, Braicu C, Dumitrescu G, Pistol GC, Cojocneanu R, Neagoe IB, Taranu I. MicroRNA profiling in kidney in pigs fed ochratoxin A contaminated diet. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109637. [PMID: 31499447 DOI: 10.1016/j.ecoenv.2019.109637] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/29/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
OTA is a toxic metabolite produced by fungus belonging to Aspergillus and Penicillium genera. Kidney is the main target of this toxin; OTA is considered as one of the etiological factors at the origin of the human Balkan endemic nephropathy. microRNA are short non-coding transcrips (18-22 nucleotides in length) regulating key cellular processes. Various miRNAs have been established to play important roles in development of renal carcinoma and urothelial cancer. The objective of this study is to analyse the miRNA profiling in the kidney of piglets experimentally intoxicated with feed contaminated with OTA. Fifteen piglets (five pigs/group) were randomly distributed into 3 groups, fed normal diet (Group 1: control), or diets contaminated with OTA in two concentrations: 50 μg OTA/kg feed (Group 2: 50 μg OTA/kg feed) or 200 μg OTA/kg feed (Group 3: 200 μg OTA/kg feed) for 28 days. At the end of the experiment blood samples were taken for serological analyses. Animals from control group and 200 μg OTA/kg feed were sacrificed and kidney samples were taken for histological and molecular analyses. As resulted from molecular profiling study there are 8 miRNA differentially expressed in OTA kidney vs control kidney, in which five miRNA were overexpressed in the kidney of OTA intoxicated animals: miR-497 (FC = 6.34), miR-133a-3p (FC = 5.75), miR-423-3p (FC = 5.48), miR-34a (FC = 1.68), miR-542-3p (1.65) while three miRNA were downregulated: miR-421-3p (FC = -3.96); miR-490 (FC = -3.87); miR-9840-3p (FC = -2.13). The altered miRNAs as effect of OTA are strongly connected to the engine of cancer, disturbing nodal points in different pathways, as TP53 signalling. This proof-of-concept study proves the actual utility of miRNAs as biomarkers of mycotoxin exposure, including OTA.
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Affiliation(s)
- Daniela Eliza Marin
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania.
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Marinescu 23 Street, No. 23, 400012, Cluj-Napoca, Romania
| | - Gabi Dumitrescu
- University of Agricultural Sciences and Veterinary Medicine of Banat, King Mihai I of Romania, Calea Aradului nr. 119, Timisoara, Romania
| | - Gina C Pistol
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Roxana Cojocneanu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Marinescu 23 Street, No. 23, 400012, Cluj-Napoca, Romania
| | - Ioana Berindan Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Marinescu 23 Street, No. 23, 400012, Cluj-Napoca, Romania; MedFuture Research Center for Advanced Medicine, "Iuliu Hatieganu" Universty of Medicine and Pharmacy, Cluj Napoca, Romania; Department of Functional Genomics and Experimental Pathology, "Prof. Dr. Ion Chiricuta" Oncology Institute, Republicii 34 Street, Cluj Napoca, Romania
| | - Ionelia Taranu
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
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Angelova DM, Brown DR. Microglia and the aging brain: are senescent microglia the key to neurodegeneration? J Neurochem 2019; 151:676-688. [PMID: 31478208 DOI: 10.1111/jnc.14860] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 12/15/2022]
Abstract
The single largest risk factor for etiology of neurodegenerative diseases like Alzheimer's disease is increased age. Therefore, understanding the changes that occur as a result of aging is central to any possible prevention or cure for such conditions. Microglia, the resident brain glial population most associated with both protection of neurons in health and their destruction is disease, could be a significant player in age related changes. Microglia can adopt an aberrant phenotype sometimes referred to either as dystrophic or senescent. While aged microglia have been frequently identified in neurodegenerative diseases such as Alzheimer's disease, there is no conclusive evidence that proves a causal role. This has been hampered by a lack of models of aged microglia. We have recently generated a model of senescent microglia based on the observation that all dystrophic microglia show iron overload. Iron-overloading cultured microglia causes them to take on a senescent phenotype and can cause changes in models of neurodegeneration similar to those observed in patients. This review considers how this model could be used to determine the role of senescent microglia in neurodegenerative diseases.
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Affiliation(s)
- Dafina M Angelova
- Department of Biology and Biochemistry, University of Bath, Bath, UK
| | - David R Brown
- Department of Biology and Biochemistry, University of Bath, Bath, UK
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5
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Chen ZY, Raghav K, Lieu CH, Jiang ZQ, Eng C, Vauthey JN, Chang GJ, Qiao W, Morris J, Hong D, Hoff P, Tran H, Menter DG, Heymach J, Overman M, Kopetz S. Cytokine profile and prognostic significance of high neutrophil-lymphocyte ratio in colorectal cancer. Br J Cancer 2015; 112:1088-97. [PMID: 25688736 PMCID: PMC4366901 DOI: 10.1038/bjc.2015.61] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/29/2014] [Accepted: 01/19/2015] [Indexed: 01/05/2023] Open
Abstract
Background: High circulating neutrophil-lymphocyte ratio (NLR) appears to be prognostic in metastatic colorectal cancer (mCRC). We investigated the relationship of NLR with circulating cytokines and molecular alterations. Methods: We performed retrospective analyses on multiple cohorts of CRC patients (metastatic untreated (n=166), refractory metastatic (n=161), hepatectomy (n=198), stage 2/3 (n=274), and molecularly screened (n=342)). High NLR (ratio of absolute neutrophil-to-lymphocyte counts in peripheral blood) was defined as NLR>5. Plasma cytokines were evaluated using multiplex-bead assays. Kaplan–Meier estimates, non-parametric correlation analysis, and hierarchical cluster analyses were used. Results: High NLR was associated with poor prognosis in mCRC (hazard ratio (HR) 1.73; 95% confidence interval (CI):1.03–2.89; P=0.039) independent of known prognostic factors and molecular alterations (KRAS/NRAS/BRAF/PIK3CA/CIMP). High NLR correlated with increased expression of interleukin 6 (IL-6), IL-8, IL-2Rα, hepatocyte growth factor, macrophage-colony stimulating factor, and vascular epidermal growth factor in exploratory (n=39) and validation (n=166) cohorts. Fourteen additional cytokines correlated with high NLR in the validation cohort. All 20 cytokines fell into three major clusters: inflammatory cytokines, angiogenic cytokines, and epidermal growth factor ligands. In mCRC, composite stratification based on NLR-cytokine score provided enhanced prognostic information (HR 2.09; 95% CI: 1.59–2.76; P<0.001) over and above NLR. Conclusions: High NLR is an independent poor prognostic marker in CRC and correlates with a distinct cytokine profile related to key biological processes involved in carcinogenesis. A composite NLR-cytokine stratification has enhanced prognostic value in mCRC.
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Affiliation(s)
- Z-Y Chen
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - K Raghav
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - C H Lieu
- Division of Medical Oncology, University of Colorado, Aurora, Colorado, USA
| | - Z-Q Jiang
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - C Eng
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - J-N Vauthey
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - G J Chang
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - W Qiao
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - J Morris
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - D Hong
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - P Hoff
- Instituto do Cancer do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Oncologia Clínica, São Paulo, Brazil
| | - H Tran
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - D G Menter
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - J Heymach
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - M Overman
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - S Kopetz
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Sprung CN, Forrester HB, Siva S, Martin OA. Immunological markers that predict radiation toxicity. Cancer Lett 2015; 368:191-7. [PMID: 25681035 DOI: 10.1016/j.canlet.2015.01.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/30/2015] [Accepted: 01/31/2015] [Indexed: 12/31/2022]
Abstract
Radiotherapy is a major modality of cancer treatment responsible for a large proportion of cancer that is cured. Radiation exposure induces an inflammatory response which can be influenced by genetic, epigenetic, tumour, health and other factors which can lead to very different treatment outcomes between individuals. Molecules involved in the immunological response provide excellent potential biomarkers for the prediction of radiation-induced toxicity. The known molecular and cellular immunological responses in relation to radiation and the potential to improve cancer treatment are presented in this review. In particular, immunological biomarkers of radiation-induced fibrosis and pneumonitis in cancer radiotherapy patients are discussed.
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Affiliation(s)
- Carl N Sprung
- Centre for Innate Immunology and Infectious Disease, MIMR-PHI Institute of Medical Research, 27-31 Wright Street, Clayton, Vic. 3168, Australia; Department of Molecular and Translational Sciences, Monash University, Clayton, Vic., Australia.
| | - Helen B Forrester
- Centre for Innate Immunology and Infectious Disease, MIMR-PHI Institute of Medical Research, 27-31 Wright Street, Clayton, Vic. 3168, Australia; Department of Molecular and Translational Sciences, Monash University, Clayton, Vic., Australia
| | - Shankar Siva
- Division of Radiation Oncology and Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Vic., Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia
| | - Olga A Martin
- Division of Radiation Oncology and Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Vic., Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia; Molecular Radiation Biology Laboratory, Peter MacCallum Cancer Centre, Vic., Australia
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Abstract
: Ulcerative colitis (UC), an inflammatory bowel disease, affects many people across the globe, and its prevalence is increasing steadily. Inflammation and oxidative stress play a vital role in the perpetuation of inflammatory process and the subsequent DNA damage associated with the development of UC. UC induces not only local but also systemic damage, which involves the perturbation of multiple molecular pathways. Furthermore, UC leads to an increased risk of colorectal cancer, the third most common malignancy in humans. Most of the drugs used for the treatment of UC are unsatisfactory because they are generally mono-targeted, relatively ineffective and unaffordable for many people. Thus, agents that can target multiple molecular pathways and are less expensive have enormous potential to treat UC. Melatonin has beneficial effects against UC in experimental and clinical studies because of its ability to modulate several molecular pathways of inflammation, oxidative stress, fibrosis, and cellular injury. However, many novel targets are yet to be explored on which melatonin may act to exert its favorable effects in UC. It is time to explore improved intervention strategies with melatonin in UC on the basis of studies investigating different molecular targets using proteomic and genomic approaches. This review identifies various molecular targets for melatonin with the intent of providing novel strategies for combating UC and the associated extraintestinal manifestations of this debilitating disease.
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Affiliation(s)
- Gopabandhu Jena
- Facility for Risk Assessment and Intervention Studies, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Punjab, India
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York TP, Brumelle J, Juusola J, Kendler KS, Eaves LJ, Amstadter AB, Aggen SH, Jones KH, Ferreira-Gonzalez A, Jackson-Cook C. Increased frequency of micronuclei in adults with a history of childhood sexual abuse: a discordant monozygotic twin study. PLoS One 2013; 8:e55337. [PMID: 23383158 PMCID: PMC3559336 DOI: 10.1371/journal.pone.0055337] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 11/23/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Childhood sexual abuse (CSA) is a traumatic life event associated with an increased lifetime risk for psychopathology/morbidity. The long-term biological consequences of CSA-elicited stress on chromosomal stability in adults are unknown. The primary aim of this study was to determine if the rate of acquired chromosomal changes, measured using the cytokinesis-block micronucleus assay on stimulated peripheral blood lymphocytes, differs in adult female monozygotic twins discordant for CSA. METHODS Monozygotic twin pairs discordant for CSA were identified from a larger population-based sample of female adult twins for whom the experience of CSA was assessed by self-report (51 individuals including a reference sample). Micronuclei (MN) contain chromatin from structurally normal or abnormal chromosomes that are excluded from the daughter nuclei during cell division and serve as a biomarker to assess acquired chromosomal instability. RESULTS Female twins exposed to CSA exhibited a 1.63-fold average increase in their frequency of MN compared to their nonexposed genetically identical cotwins (Paired t-test, t₁₆ = 2.65, P = 0.017). No additional effects of familial factors were detected after controlling for the effect of CSA exposure. A significant interaction between CSA history and age was observed, suggesting that the biological effects of CSA on MN formation may be cumulative. CONCLUSIONS These data support a direct link between CSA exposure and MN formation measured in adults that is not attributable to genetic or environmental factors shared by siblings. Further research is warranted to understand the biological basis for the observed increase in acquired chromosomal findings in people exposed to CSA and to determine if acquired somatic chromosomal abnormalities/somatic clonal mosaicism might mediate the adult pathology associated with CSA.
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Affiliation(s)
- Timothy P York
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America.
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Chromosomal aberrations in peripheral blood lymphocytes in patients with newly diagnosed celiac and Crohn's disease. Eur J Gastroenterol Hepatol 2013; 25:22-7. [PMID: 23022983 DOI: 10.1097/meg.0b013e328359526c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES The aims of this research were to determine the number of chromosomal aberrations in peripheral blood lymphocytes and to evaluate the number of circulating lymphocytes with CD103, integrin expressed on intraepithelial lymphocytes and preserved in enteropathy-associated T-cell lymphoma, in patients with newly diagnosed Crohn's disease, celiac disease, and healthy controls. METHODS During the period of 30 months, we included 44 patients. Chromosome aberrations were analyzed in peripheral blood lymphocytes by a single cytogeneticist. Multicolor flow cytometric was used for immunophenotyping of peripheral blood lymphocytes. RESULTS We found a significantly higher number of chromosomal aberrations/100 metaphases in the celiac and Crohn's disease group compared with the controls (P=0.01) and they also had a significantly higher number of aberrant cells compared with the controls (P<0.001). There was no statistically significant difference between the groups with respect to the percentage of CD103+ and CD8+CD103+ cells between groups (P=0.16 and 0.41, respectively) and no correlation between the total number of chromosomal aberrations and the percentage of CD103+ and CD8+CD103+ cells (P=0.06 and 0.06, respectively). CONCLUSION Patients with active celiac and newly diagnosed Crohn's disease, before treatment initiation, have a significantly increased number of chromosomal aberrations in peripheral blood lymphocytes. No dissemination of intraepithelial cells in the blood and correlation to the chromosomal aberration was found.
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Gupta SC, Hevia D, Patchva S, Park B, Koh W, Aggarwal BB. Upsides and downsides of reactive oxygen species for cancer: the roles of reactive oxygen species in tumorigenesis, prevention, and therapy. Antioxid Redox Signal 2012; 16:1295-322. [PMID: 22117137 PMCID: PMC3324815 DOI: 10.1089/ars.2011.4414] [Citation(s) in RCA: 505] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Extensive research during the last quarter century has revealed that reactive oxygen species (ROS) produced in the body, primarily by the mitochondria, play a major role in various cell-signaling pathways. Most risk factors associated with chronic diseases (e.g., cancer), such as stress, tobacco, environmental pollutants, radiation, viral infection, diet, and bacterial infection, interact with cells through the generation of ROS. RECENT ADVANCES ROS, in turn, activate various transcription factors (e.g., nuclear factor kappa-light-chain-enhancer of activated B cells [NF-κB], activator protein-1, hypoxia-inducible factor-1α, and signal transducer and activator of transcription 3), resulting in the expression of proteins that control inflammation, cellular transformation, tumor cell survival, tumor cell proliferation and invasion, angiogenesis, and metastasis. Paradoxically, ROS also control the expression of various tumor suppressor genes (p53, Rb, and PTEN). Similarly, γ-radiation and various chemotherapeutic agents used to treat cancer mediate their effects through the production of ROS. Interestingly, ROS have also been implicated in the chemopreventive and anti-tumor action of nutraceuticals derived from fruits, vegetables, spices, and other natural products used in traditional medicine. CRITICAL ISSUES These statements suggest both "upside" (cancer-suppressing) and "downside" (cancer-promoting) actions of the ROS. Thus, similar to tumor necrosis factor-α, inflammation, and NF-κB, ROS act as a double-edged sword. This paradox provides a great challenge for researchers whose aim is to exploit ROS stress for the development of cancer therapies. FUTURE DIRECTIONS the various mechanisms by which ROS mediate paradoxical effects are discussed in this article. The outstanding questions and future directions raised by our current understanding are discussed.
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Affiliation(s)
- Subash C Gupta
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Role of nitrative and oxidative DNA damage in inflammation-related carcinogenesis. J Biomed Biotechnol 2012; 2012:623019. [PMID: 22363173 PMCID: PMC3272848 DOI: 10.1155/2012/623019] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 10/07/2011] [Indexed: 01/07/2023] Open
Abstract
Chronic inflammation induced by biological, chemical, and physical factors has been found to be associated with the increased risk of cancer in various organs. We revealed that infectious agents including liver fluke, Helicobacter pylori, and human papilloma virus and noninfectious agents such as asbestos fiber induced iNOS-dependent formation of 8-nitroguanine and 8-oxo-7, 8-dihydro-2′-deoxyguanosine (8-oxodG) in cancer tissues and precancerous regions. Our results with the colocalization of phosphorylated ATM and γ-H2AX with 8-oxodG and 8-nitroguanine in inflammation-related cancer tissues suggest that DNA base damage leads to double-stranded breaks. It is interesting from the aspect of genetic instability. We also demonstrated IL-6-modulated iNOS expression via STAT3 and EGFR in Epstein-Barr-virus-associated nasopharyngeal carcinoma and found promoter hypermethylation in several tumor suppressor genes. Such epigenetic alteration may occur by controlling the DNA methylation through IL-6-mediated JAK/STAT3 pathways. Collectively, 8-nitroguanine would be a useful biomarker for predicting the risk of inflammation-related cancers.
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Gerling M, Glauben R, Habermann JK, Kühl AA, Loddenkemper C, Lehr HA, Zeitz M, Siegmund B. Characterization of chromosomal instability in murine colitis-associated colorectal cancer. PLoS One 2011; 6:e22114. [PMID: 21799775 PMCID: PMC3142131 DOI: 10.1371/journal.pone.0022114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 06/16/2011] [Indexed: 12/27/2022] Open
Abstract
Background Patients suffering from ulcerative colitis (UC) bear an increased risk for colorectal cancer. Due to the sparsity of colitis-associated cancer (CAC) and the long duration between UC initiation and overt carcinoma, elucidating mechanisms of inflammation-associated carcinogenesis in the gut is particularly challenging. Adequate murine models are thus highly desirable. For human CACs a high frequency of chromosomal instability (CIN) reflected by aneuploidy could be shown, exceeding that of sporadic carcinomas. The aim of this study was to analyze mouse models of CAC with regard to CIN. Additionally, protein expression of p53, beta-catenin and Ki67 was measured to further characterize murine tumor development in comparison to UC-associated carcinogenesis in men. Methods The AOM/DSS model (n = 23) and IL-10−/− mice (n = 8) were applied to monitor malignancy development via endoscopy and to analyze premalignant and malignant stages of CACs. CIN was assessed using DNA-image cytometry. Protein expression of p53, beta-catenin and Ki67 was evaluated by immunohistochemistry. The degree of inflammation was analyzed by histology and paralleled to local interferon-γ release. Results CIN was detected in 81.25% of all murine CACs induced by AOM/DSS, while all carcinomas that arose in IL-10−/− mice were chromosomally stable. Beta-catenin expression was strongly membranous in IL-10−/− mice, while 87.50% of AOM/DSS-induced tumors showed cytoplasmatic and/or nuclear translocation of beta-catenin. p53 expression was high in both models and Ki67 staining revealed higher proliferation of IL-10−/−-induced CACs. Conclusions AOM/DSS-colitis, but not IL-10−/− mice, could provide a powerful murine model to mechanistically investigate CIN in colitis-associated carcinogenesis.
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Affiliation(s)
- Marco Gerling
- Medical Clinic I, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany.
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Scarpato R, Verola C, Fabiani B, Bianchi V, Saggese G, Federico G. Nuclear damage in peripheral lymphocytes of obese and overweight Italian children as evaluated by the gamma-H2AX focus assay and micronucleus test. FASEB J 2010; 25:685-93. [PMID: 21068397 DOI: 10.1096/fj.10-168427] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Childhood obesity, often characterized by a chronic low-grade inflammation, has been associated with an increased risk of developing some types of cancer later in life. Nuclear γ-H2AX foci represent the first detectable response of cells to DNA tumorigenesis lesions, such as the double-strand breaks (DSBs). An excess of micronucleated peripheral lymphocytes was found in subjects with cancer or inflammation-based diseases. We set out to investigate the expression of genome damage, from DNA lesions to chromosome mutations (micronuclei), in overweight and obese children. Using the γ-H2AX focus assay and micronucleus (MN) test, we analyzed peripheral lymphocytes from 119 Italian children classified as normal weight (n=38), overweight (n=20), or obese (n=61). Cultures treated with bleomycin (BLM) were also set up for each child in both assays to check functioning of the apparatus that ensures DNA integrity. We measured serum TNF-α, IL-6, and C-reactive protein (CRP) as markers of inflammation. Overweight and obese children had significantly higher levels of H2AX phosphorylation (0.0191±0.0039 and 0.0274±0.0029 γ-H2AXF/n) and increased MN frequencies (2.30±0.25 and 2.45±0.22‰) than normal-weight children (0.0034±0.0006 γ-H2AXF/n, and 0.92±0.12‰ MN), while all subjects responded to BLM induction, irrespective of their weight status. The fold increase of spontaneous MN frequencies in overweight and obese subjects was 2.5 and 2.7, respectively, well below the corresponding increase in the γ-H2AX foci (5.6- and 8.0-fold, respectively). IL-6 and CRP mean values were significantly higher in obese and overweight children than in controls. Here, we demonstrated that peripheral cells of overweight and obese children showed increased levels of DSBs, which were not completely repaired as part of them has been converted into micronuclei. Characterization of childhood obesity inflammation could be implemented using molecular markers of genome damage.
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Affiliation(s)
- Roberto Scarpato
- Dipartimento di Biologia, Unità di Genetica, Mutagenesi ed Epidemiologia Ambientale, University of Pisa, via Derna 1, 56100 Pisa, Italy.
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Ferguson LR. Chronic inflammation and mutagenesis. Mutat Res 2010; 690:3-11. [PMID: 20223251 DOI: 10.1016/j.mrfmmm.2010.03.007] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Revised: 02/20/2010] [Accepted: 03/02/2010] [Indexed: 02/08/2023]
Abstract
Inflammation is a necessary part of the immune response. However, when inflammation persists, the resultant state of chronic inflammation may have a number of secondary consequences associated with increased risk of chronic disease. Among these is an increased rate of mutation. There is evidence to suggest that the accumulation of reactive oxygen and nitrogen species may be a causal factor in chronic inflammation. These reactive species are also produced through the oxidative burst associated with the inflammatory process, and may interact with various cellular components including proteins, lipids and, most important for mutagenesis, nucleic acids. DNA strand breaks are commonly produced, leading to chromosomal mutation. Oxidized bases, abasic sites, DNA-DNA intrastrand adducts, and DNA-protein cross-links also occur. Not only do the nucleic acid products act directly as pro-mutagenic lesions, lipid peroxidation products may also lead to secondary DNA damage, including pro-mutagenic exocyclic DNA adducts. While frameshift and chromosomal mutations have been associated with chronic inflammation, much of the evidence reveals base pair substitution mutations associated with polymerase stalling near the lesions, and base pair mis-incorporation. There are also indirect effects of ROS/RNS through inhibition of DNA repair enzymes and/or effects on metabolic activation of known carcinogens. Certain disease states, including the Inflammatory bowel diseases, Crohn's disease and ulcerative colitis are associated with enhanced levels of chronic inflammation, and show evidence of enhanced levels of genetic damage in the colonic mucosa. Mutations may provide at least part of the cause of enhanced susceptibility to chronic diseases associated with chronic inflammation.
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Affiliation(s)
- Lynnette R Ferguson
- Discipline of Nutrition and ACSRC, FM&HS, The University of Auckland, Auckland, New Zealand.
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