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Zhou S, Zhu M, Wei X, Mu P, Shen L, Wang Y, Wan J, Zhang H, Xia F, Zhang Z. Low-dose radiotherapy synergizes with iRGD-antiCD3-modified T cells by facilitating T cell infiltration. Radiother Oncol 2024; 194:110213. [PMID: 38458258 DOI: 10.1016/j.radonc.2024.110213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND AND PURPOSE Poor penetration of transferred T cells represents a critical factor impeding the development of adoptive cell therapy in solid tumors. We demonstrated that iRGD-antiCD3 modification promoted both T cell infiltration and activation in our previous work. Interest in low-dose radiotherapy has recently been renewed due to its immuno-stimulatory effects including T cell recruitment. This study aims to explore the synergistic effects between low-dose radiotherapy and iRGD-antiCD3-modified T cells. MATERIALS AND METHODS Flow cytometry was performed to assess the expression of iRGD receptors and chemokines. T cell infiltration was evaluated by immunohistofluorescence and in vivo real-time fluorescence imaging and antitumor effects were investigated by in vivo bioluminescence imaging in the gastric cancer peritoneal metastasis mouse model. RESULTS We found that 2 Gy irradiation upregulated the expression of all three iRGD receptors and T-cell chemokines. The addition of 2 Gy low-dose irradiation boosted the accumulation and penetration of iRGD-antiCD3-modified T cells in peritoneal tumor nodules. Combining 2 Gy low-dose irradiation with iRGD-antiCD3-modified T cells significantly inhibited tumor growth and prolonged survival in the peritoneal metastasis mouse model with a favorable safety profile. CONCLUSION Altogether, we demonstrated that low-dose radiotherapy could improve the antitumor potency of iRGD-antiCD3-modified T cells by promoting T cell infiltration, providing a rationale for exploring low-dose radiotherapy in combination of other adoptive T cell therapies in solid tumors.
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Affiliation(s)
- Shujuan Zhou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Mei Zhu
- Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China
| | - Xiao Wei
- Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Peiyuan Mu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Lijun Shen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Yan Wang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Juefeng Wan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Hui Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Fan Xia
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China.
| | - Zhen Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China.
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Lombardo KA, Obradovic A, Singh AK, Liu JL, Joice G, Kates M, Bishai W, McConkey D, Chaux A, Eich ML, Rezaei MK, Netto GJ, Drake CG, Tran P, Matoso A, Bivalacqua TJ. BCG invokes superior STING-mediated innate immune response over radiotherapy in a carcinogen murine model of urothelial cancer. J Pathol 2022; 256:223-234. [PMID: 34731491 PMCID: PMC8738146 DOI: 10.1002/path.5830] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 10/07/2021] [Accepted: 10/30/2021] [Indexed: 02/03/2023]
Abstract
Radiation and bacillus Calmette-Guérin (BCG) instillations are used clinically for treatment of urothelial carcinoma, but the precise mechanisms by which they activate an immune response remain elusive. The role of the cGAS-STING pathway has been implicated in both BCG and radiation-induced immune response; however, comparison of STING pathway molecules and the immune landscape following treatment in urothelial carcinoma has not been performed. We therefore comprehensively analyzed the local immune response in the bladder tumor microenvironment following radiotherapy and BCG instillations in a well-established spontaneous murine model of urothelial carcinoma to provide insight into activation of STING-mediated immune response. Mice were exposed to the oral carcinogen, BBN, for 12 weeks prior to treatment with a single 15 Gy dose of radiation or three intravesical instillations of BCG (1 × 108 CFU). At sacrifice, tumors were staged by a urologic pathologist and effects of therapy on the immune microenvironment were measured using the NanoString Myeloid Innate Immunity Panel and immunohistochemistry. Clinical relevance was established by measuring immune biomarker expression of cGAS and STING on a human tissue microarray consisting of BCG-treated non-muscle-invasive urothelial carcinomas. BCG instillations in the murine model elevated STING and downstream STING-induced interferon and pro-inflammatory molecules, intratumoral M1 macrophage and T-cell accumulation, and complete tumor eradication. In contrast, radiotherapy caused no changes in STING pathway or innate immune gene expression; rather, it induced M2 macrophage accumulation and elevated FoxP3 expression characteristic of immunosuppression. In human non-muscle-invasive bladder cancer, STING protein expression was elevated at baseline in patients who responded to BCG therapy and increased further after BCG therapy. Overall, these results show that STING pathway activation plays a key role in effective BCG-induced immune response and strongly indicate that the effects of BCG on the bladder cancer immune microenvironment are more beneficial than those induced by radiation. © 2021 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Kara A Lombardo
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Greenberg Bladder Cancer Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Aleksandar Obradovic
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY, USA
- Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Alok Kumar Singh
- Center for Tuberculosis Research, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - James L Liu
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Gregory Joice
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Max Kates
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - William Bishai
- Center for Tuberculosis Research, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - David McConkey
- Greenberg Bladder Cancer Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Alcides Chaux
- Department of Scientific Research, School of Postgraduate Studies, Norte University, 1614 Asunción, Paraguay
| | - Marie-Lisa Eich
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - M Katayoon Rezaei
- Department of Pathology, George Washington University, Washington, DC, USA
| | - George J Netto
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Charles G Drake
- Division of Urology, Oncology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
- Division Hematology and Oncology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
- Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Phuoc Tran
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Department of Radiation Oncology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Andres Matoso
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Greenberg Bladder Cancer Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Trinity J Bivalacqua
- Department of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Greenberg Bladder Cancer Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
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3
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Li H, Wang M, Huang B, Zhu SW, Zhou JJ, Chen DR, Cui R, Zhang M, Sun ZJ. Theranostic near-infrared-IIb emitting nanoprobes for promoting immunogenic radiotherapy and abscopal effects against cancer metastasis. Nat Commun 2021; 12:7149. [PMID: 34887404 PMCID: PMC8660774 DOI: 10.1038/s41467-021-27485-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 11/24/2021] [Indexed: 01/01/2023] Open
Abstract
Radiotherapy is an important therapeutic strategy for cancer treatment through direct damage to cancer cells and augmentation of antitumor immune responses. However, the efficacy of radiotherapy is limited by hypoxia-mediated radioresistance and immunosuppression in tumor microenvironment. Here, we construct a stabilized theranostic nanoprobe based on quantum dots emitting in the near-infrared IIb (NIR-IIb, 1,500-1,700 nm) window modified by catalase, arginine-glycine-aspartate peptides and poly(ethylene glycol). We demonstrate that the nanoprobes effectively aggregate in the tumor site to locate the tumor region, thereby realizing precision radiotherapy with few side-effects. In addition, nanoprobes relieve intratumoral hypoxia and reduce the tumor infiltration of immunosuppressive cells. Moreover, the nanoprobes promote the immunogenic cell death of cancer cells to trigger the activation of dendritic cells and enhance T cell-mediated antitumor immunity to inhibit tumor metastasis. Collectively, the nanoprobe-mediated immunogenic radiotherapy can boost the abscopal effect to inhibit tumor metastasis and prolong survival.
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Affiliation(s)
- Hao Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - Meng Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China
| | - Biao Huang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China
| | - Su-Wen Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - Jun-Jie Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - De-Run Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - Ran Cui
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, China.
| | - Mingxi Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China.
| | - Zhi-Jun Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 430079, Wuhan, China.
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Abstract
This review examines the beneficial effects of ultraviolet radiation on systemic autoimmune diseases, including multiple sclerosis and type I diabetes, where the epidemiological evidence for the vitamin D-independent effects of sunlight is most apparent. Ultraviolet radiation, in addition to its role in the synthesis of vitamin D, stimulates anti-inflammatory pathways, alters the composition of dendritic cells, T cells, and T regulatory cells, and induces nitric oxide synthase and heme oxygenase metabolic pathways, which may directly or indirectly mitigate disease progression and susceptibility. Recent work has also explored how the immune-modulating functions of ultraviolet radiation affect type II diabetes, cancer, and the current global pandemic caused by SARS-CoV-2. These diseases are particularly important amidst global changes in lifestyle that result in unhealthy eating, increased sedentary habits, and alcohol and tobacco consumption. Compelling epidemiological data shows increased ultraviolet radiation associated with reduced rates of certain cancers, such as colorectal cancer, breast cancer, non-Hodgkins lymphoma, and ultraviolet radiation exposure correlated with susceptibility and mortality rates of COVID-19. Therefore, understanding the effects of ultraviolet radiation on both vitamin D-dependent and -independent pathways is necessary to understand how they influence the course of many human diseases.
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Affiliation(s)
- Anna S Erem
- Department of Pathology, Emory University School of Medicine, Atlanta, GA, USA
| | - Mohammed S Razzaque
- Department of Pathology, Lake Erie College of Osteopathic Medicine, Erie, PA, USA.
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Khan AUH, Blimkie M, Yang DS, Serran M, Pack T, Wu J, Kang JY, Laakso H, Lee SH, Le Y. Effects of Chronic Low-Dose Internal Radiation on Immune-Stimulatory Responses in Mice. Int J Mol Sci 2021; 22:7303. [PMID: 34298925 PMCID: PMC8306076 DOI: 10.3390/ijms22147303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 12/18/2022] Open
Abstract
The Linear-No-Threshold (LNT) model predicts a dose-dependent linear increase in cancer risk. This has been supported by biological and epidemiological studies at high-dose exposures. However, at low-doses (LDR ≤ 0.1 Gy), the effects are more elusive and demonstrate a deviation from linearity. In this study, the effects of LDR on the development and progression of mammary cancer in FVB/N-Tg(MMTVneu)202Mul/J mice were investigated. Animals were chronically exposed to total doses of 10, 100, and 2000 mGy via tritiated drinking water, and were assessed at 3.5, 6, and 8 months of age. Results indicated an increased proportion of NK cells in various organs of LDR exposed mice. LDR significantly influenced NK and T cell function and activation, despite diminishing cell proliferation. Notably, the expression of NKG2D receptor on NK cells was dramatically reduced at 3.5 months but was upregulated at later time-points, while the expression of NKG2D ligand followed the opposite trend, with an increase at 3.5 months and a decrease thereafter. No noticeable impact was observed on mammary cancer development, as measured by tumor load. Our results demonstrated that LDR significantly influenced the proportion, proliferation, activation, and function of immune cells. Importantly, to the best of our knowledge, this is the first report demonstrating that LDR modulates the cross-talk between the NKG2D receptor and its ligands.
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Affiliation(s)
- Abrar Ul Haq Khan
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (A.U.H.K.); (D.S.Y.); (J.-Y.K.)
| | - Melinda Blimkie
- Radiobiology and Health Branch, Canadian Nuclear Laboratories Ltd., Chalk River, ON K0J 1J0, Canada; (M.B.); (M.S.); (T.P.); (J.W.); (H.L.)
| | - Doo Seok Yang
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (A.U.H.K.); (D.S.Y.); (J.-Y.K.)
| | - Mandy Serran
- Radiobiology and Health Branch, Canadian Nuclear Laboratories Ltd., Chalk River, ON K0J 1J0, Canada; (M.B.); (M.S.); (T.P.); (J.W.); (H.L.)
| | - Tyler Pack
- Radiobiology and Health Branch, Canadian Nuclear Laboratories Ltd., Chalk River, ON K0J 1J0, Canada; (M.B.); (M.S.); (T.P.); (J.W.); (H.L.)
| | - Jin Wu
- Radiobiology and Health Branch, Canadian Nuclear Laboratories Ltd., Chalk River, ON K0J 1J0, Canada; (M.B.); (M.S.); (T.P.); (J.W.); (H.L.)
| | - Ji-Young Kang
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (A.U.H.K.); (D.S.Y.); (J.-Y.K.)
| | - Holly Laakso
- Radiobiology and Health Branch, Canadian Nuclear Laboratories Ltd., Chalk River, ON K0J 1J0, Canada; (M.B.); (M.S.); (T.P.); (J.W.); (H.L.)
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (A.U.H.K.); (D.S.Y.); (J.-Y.K.)
- Centre for Infection, The University of Ottawa, Immunity and Inflammation, Ottawa, ON K1H 8M5, Canada
| | - Yevgeniya Le
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (A.U.H.K.); (D.S.Y.); (J.-Y.K.)
- CANDU Owners Group Inc., Toronto, ON M5G 2K4, Canada
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Keam SP, Halse H, Nguyen T, Wang M, Van Kooten Losio N, Mitchell C, Caramia F, Byrne DJ, Haupt S, Ryland G, Darcy PK, Sandhu S, Blombery P, Haupt Y, Williams SG, Neeson PJ. High dose-rate brachytherapy of localized prostate cancer converts tumors from cold to hot. J Immunother Cancer 2020; 8:e000792. [PMID: 32581061 PMCID: PMC7319782 DOI: 10.1136/jitc-2020-000792] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) has a profoundly immunosuppressive microenvironment and is commonly immune excluded with few infiltrative lymphocytes and low levels of immune activation. High-dose radiation has been demonstrated to stimulate the immune system in various human solid tumors. We hypothesized that localized radiation therapy, in the form of high dose-rate brachytherapy (HDRBT), would overcome immune suppression in PCa. METHODS To investigate whether HDRBT altered prostate immune context, we analyzed preradiation versus postradiation human tissue from a cohort of 24 patients with localized PCa that received HDRBT as primary treatment (RadBank cohort). We performed Nanostring immune gene expression profiling, digital spatial profiling, and high-throughput immune cell multiplex immunohistochemistry analysis. We also resolved tumor and nontumor zones in spatial and bioinformatic analyses to explore the immunological response. RESULTS Nanostring immune profiling revealed numerous immune checkpoint molecules (eg, B7-H3, CTLA4, PDL1, and PDL2) and TGFβ levels were increased in response to HDRBT. We used a published 16-gene tumor inflammation signature (TIS) to divide tumors into distinct immune activation states (high:hot, intermediate and low:cold) and showed that most localized PCa are cold tumors pre-HDRBT. Crucially, HDRBT converted 80% of these 'cold'-phenotype tumors into an 'intermediate' or 'hot' class. We used digital spatial profiling to show these HDRBT-induced changes in prostate TIS scores were derived from the nontumor regions. Furthermore, these changes in TIS were also associated with pervasive changes in immune cell density and spatial relationships-in particular, between T cell subsets and antigen presenting cells. We identified an increased density of CD4+ FOXP3+ T cells, CD68+ macrophages and CD68+ CD11c+ dendritic cells in response to HDRBT. The only subset change specific to tumor zones was PDL1- macrophages. While these immune responses were heterogeneous, HDRBT induced significant changes in immune cell associations, including a gained T cell and HMWCK+ PDL1+ interaction in tumor zones. CONCLUSION In conclusion, we showed HDRBT converted "cold" prostate tumors into more immunologically activated "hot" tissues, with accompanying spatially organized immune infiltrates and signaling changes. Understanding and potentially harnessing these changes will have widespread implications for the future treatment of localized PCa, including rational use of combination radio-immunotherapy.
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Affiliation(s)
- Simon P Keam
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Tumor Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Heloise Halse
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Thu Nguyen
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Minyu Wang
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | | | - Catherine Mitchell
- Pathology Department, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Franco Caramia
- Tumor Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - David J Byrne
- Pathology Department, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sue Haupt
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Tumor Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Georgina Ryland
- Pathology Department, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Phillip K Darcy
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Shahneen Sandhu
- Genitourinary Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Piers Blombery
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Pathology Department, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Ygal Haupt
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Tumor Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Scott G Williams
- Division of Radiation Oncology and Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Paul J Neeson
- Cancer Immunology Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
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7
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Huang Z, Wu Y, Allen ME, Pan Y, Kyriakakis P, Lu S, Chang YJ, Wang X, Chien S, Wang Y. Engineering light-controllable CAR T cells for cancer immunotherapy. Sci Adv 2020; 6:eaay9209. [PMID: 32128416 PMCID: PMC7030928 DOI: 10.1126/sciadv.aay9209] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 12/03/2019] [Indexed: 05/16/2023]
Abstract
T cells engineered to express chimeric antigen receptors (CARs) can recognize and engage with target cancer cells with redirected specificity for cancer immunotherapy. However, there is a lack of ideal CARs for solid tumor antigens, which may lead to severe adverse effects. Here, we developed a light-inducible nuclear translocation and dimerization (LINTAD) system for gene regulation to control CAR T activation. We first demonstrated light-controllable gene expression and functional modulation in human embryonic kidney 293T and Jurkat T cell lines. We then improved the LINTAD system to achieve optimal efficiency in primary human T cells. The results showed that pulsed light stimulations can activate LINTAD CAR T cells with strong cytotoxicity against target cancer cells, both in vitro and in vivo. Therefore, our LINTAD system can serve as an efficient tool to noninvasively control gene activation and activate inducible CAR T cells for precision cancer immunotherapy.
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Affiliation(s)
- Ziliang Huang
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Yiqian Wu
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Molly E. Allen
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Yijia Pan
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Phillip Kyriakakis
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Shaoying Lu
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Ya-Ju Chang
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Xin Wang
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Shu Chien
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
- Institute of Engineering in Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Yingxiao Wang
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
- Institute of Engineering in Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Corresponding author.
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8
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Szymański Ł, Sobiczewska E, Cios A, Szymanski P, Ciepielak M, Stankiewicz W. Immunotropic effects in cultured human blood mononuclear cells exposed to a 900 MHz pulse-modulated microwave field. J Radiat Res 2020; 61:27-33. [PMID: 31832654 PMCID: PMC6976861 DOI: 10.1093/jrr/rrz085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 10/28/2019] [Accepted: 10/31/2019] [Indexed: 05/08/2023]
Abstract
The specific biological effect of electromagnetic field (EMF) remains unknown even though devices present in our daily lives, such as smartphones and Wi-Fi antennae increase the environmental level of electromagnetic radiation. It is said that the human immune system is able to react to discrete environmental stimuli like EMF. To investigate the effect of 900 MHz microwave stimulation on the immune system our research aimed to analyze lymphocyte proliferation and observe and assess the basic immunoregulatory activities using a newly developed and improved anechoic chamber. Samples of mononuclear cells (PBMC) isolated from the blood of healthy donors were exposed to 900 MHz pulse-modulated radiofrequency radiation (20 V/m, SAR 0.024 W/kg) twice (15 min each) or left without irradiation (control group). Subsequently, the control and exposed cells were set up to determine several parameters characterizing T cell immunocompetence and monocyte immunogenic activity. Although the microcultures of PBMC exposed to radiofrequency radiation demonstrated higher immunogenic activity of monocytes (LM index) and T-cell response to concanavalin A than control cultures after first exposure, this parameter decreased after a second stimulation. Saturation of the interleukin-2 (IL-2) receptor rose significantly after the second day of exposure. On the other hand, response to mitogen dropped after EMF stimulation. The results suggest that PBMC are able to overcome stress caused by mitogens after stimulation with 900 MHz radiation.
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Affiliation(s)
- Łukasz Szymański
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
| | - Elżbieta Sobiczewska
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
| | - Aleksandra Cios
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
- Corresponding Author: Zakład Ochrony Mikrofalowej WIHE, Budynek Izotopów, Szaserów 128, Warsaw, Poland. Tel: 22261817103;
| | - Pawel Szymanski
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
| | - Martyna Ciepielak
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
| | - Wanda Stankiewicz
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
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9
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Testa A, Palma V, Patrono C. A NOVEL BIOLOGICAL DOSIMETRY ASSAY AS A POTENTIAL TOOL FOR TRIAGE DOSE ASSESSMENT IN CASE OF LARGE-SCALE RADIOLOGICAL EMERGENCY. Radiat Prot Dosimetry 2019; 186:9-11. [PMID: 30726995 DOI: 10.1093/rpd/ncz001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/11/2018] [Indexed: 06/09/2023]
Abstract
In case of mass radiological emergencies, new strategies involving biological and clinical endpoints are requested for an efficient triage classification of casualties. For this purpose, we developed a novel protocol combining the two most established cytogenetic methods used in biological dosimetry (dicentric and micronucleus assays) into a single one, in order to have a time-saving, inexpensive and potentially automatable instrument to be used for triage purposes in case of large-scale radiological events. This method could be considered as a 'three in one' assay allowing the simultaneous scoring of chromosome aberrations and micronuclei on a single slide, and also enabling to discriminate between metaphases in first and second cell division without the Fluorescence plus Giemsa staining. This method needs further validation through inter-comparisons involving biological dosimetry laboratories, to verify its reproducibility. Moreover, the possibility to apply the already existing software for automation for dicentric and micronucleus assays could be also verified.
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Affiliation(s)
- A Testa
- ENEA Casaccia Research Center, Department for Sustainability, Division Health Protection Technologies, Via Anguillarese, 301 Rome, Italy
| | - V Palma
- ENEA Casaccia Research Center, Department for Sustainability, Division Health Protection Technologies, Via Anguillarese, 301 Rome, Italy
| | - C Patrono
- ENEA Casaccia Research Center, Department for Sustainability, Division Health Protection Technologies, Via Anguillarese, 301 Rome, Italy
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10
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Nath S, Obaid G, Hasan T. The Course of Immune Stimulation by Photodynamic Therapy: Bridging Fundamentals of Photochemically Induced Immunogenic Cell Death to the Enrichment of T-Cell Repertoire. Photochem Photobiol 2019; 95:1288-1305. [PMID: 31602649 PMCID: PMC6878142 DOI: 10.1111/php.13173] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 10/04/2019] [Indexed: 12/15/2022]
Abstract
Photodynamic therapy (PDT) is a potentially immunogenic and FDA-approved antitumor treatment modality that utilizes the spatiotemporal combination of a photosensitizer, light and oftentimes oxygen, to generate therapeutic cytotoxic molecules. Certain photosensitizers under specific conditions, including ones in clinical practice, have been shown to elicit an immune response following photoillumination. When localized within tumor tissue, photogenerated cytotoxic molecules can lead to immunogenic cell death (ICD) of tumor cells, which release damage-associated molecular patterns and tumor-specific antigens. Subsequently, the T-lymphocyte (T cell)-mediated adaptive immune system can become activated. Activated T cells then disseminate into systemic circulation and can eliminate primary and metastatic tumors. In this review, we will detail the multistage cascade of events following PDT of solid tumors that ultimately lead to the activation of an antitumor immune response. More specifically, we connect the fundamentals of photochemically induced ICD with a proposition on potential mechanisms for PDT enhancement of the adaptive antitumor response. We postulate a hypothesis that during the course of the immune stimulation process, PDT also enriches the T-cell repertoire with tumor-reactive activated T cells, diversifying their tumor-specific targets and eliciting a more expansive and rigorous antitumor response. The implications of such a process are likely to impact the outcomes of rational combinations with immune checkpoint blockade, warranting investigations into T-cell diversity as a previously understudied and potentially transformative paradigm in antitumor photodynamic immunotherapy.
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Affiliation(s)
- Shubhankar Nath
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Girgis Obaid
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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11
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Caudell DL, Michalson KT, Andrews RN, Snow WW, Bourland JD, DeBo RJ, Cline JM, Sempowski GD, Register TC. Transcriptional Profiling of Non-Human Primate Lymphoid Organ Responses to Total-Body Irradiation. Radiat Res 2019; 192:40-52. [PMID: 31059377 PMCID: PMC6699496 DOI: 10.1667/rr15100.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The global threat of exposure to radiation and its subsequent outcomes require the development of effective strategies to mitigate immune cell injury. In this study we explored transcriptional and immunophenotypic characteristics of lymphoid organs of a non-human primate model after total-body irradiation (TBI). Fifteen middle-aged adult, ovariectomized, female cynomolgus macaques received a single dose of 0, 2 or 5 Gy gamma radiation. Thymus, spleen and lymph node from three controls and 2 Gy (n = 2) and 5 Gy (n = 2) exposed animals were assessed for molecular responses to TBI through microarray-based transcriptional profiling at day 5 postirradiation, and cellular changes through immunohistochemical (IHC) characterization of markers for B and T lymphocytes and macrophages across all 15 animals at time points up to 6 months postirradiation. Irradiated macaques developed acute hematopoietic syndrome. Analysis of array data at day 5 postirradiation identified transcripts with ≥2-fold difference from control and a false discovery rate (FDR) of Padj < 0.05 in lymph node (n = 666), spleen (n = 493) and thymus (n=3,014). Increasing stringency of the FDR to P < 0.001 reduced the number of genes to 71 for spleen and 379 for thymus. IHC and gene expression data demonstrated that irradiated animals had reduced numbers of T and B lymphocytes along with relative elevations of macrophages. Transcriptional analysis revealed unique patterns in primary and secondary lymphoid organs of cynomolgus macaques. Among the many differentially regulated transcripts, upregulation of noncoding RNAs [MIR34A for spleen and thymus and NEAT1 (NCRNA00084) for thymus] showed potential as biomarkers of radiation injury and targets for mitigating the effects of radiation-induced hematopoietic syndrome-impaired lymphoid reconstitution.
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Affiliation(s)
- David L. Caudell
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Kristofer T. Michalson
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Rachel N. Andrews
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - William W. Snow
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - J. Daniel Bourland
- Departments of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Ryne J. DeBo
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - J. Mark Cline
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Gregory D. Sempowski
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Thomas C. Register
- Departments of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina
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12
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Wang Y, Liu ZG, Yuan H, Deng W, Li J, Huang Y, Kim BYS, Story MD, Jiang W. The Reciprocity between Radiotherapy and Cancer Immunotherapy. Clin Cancer Res 2019; 25:1709-1717. [PMID: 30413527 PMCID: PMC6420874 DOI: 10.1158/1078-0432.ccr-18-2581] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/01/2018] [Accepted: 11/05/2018] [Indexed: 12/21/2022]
Abstract
The clinical success of immune checkpoint inhibitors in treating metastatic and refractory cancers has generated significant interest in investigating their role in treating locally advanced diseases, thus requiring them to be combined with standard treatments in the hope of producing synergistic antitumor responses. Radiotherapy, in particular, has long been hypothesized to have actions complementary to those of immune checkpoint blockade, and a growing body of evidence indicates that cancer immunotherapy may also have radiosensitizing effects, which would provide unique benefit for locoregional treatments. Recent studies have demonstrated that when immune cells are activated by immunotherapeutics, they can reprogram the tumor microenvironment in ways that may potentially increase the radiosensitivity of the tumor. In this review, we highlight the evidence that supports reciprocal interactions between cancer immunotherapy and radiotherapy, where in addition to the traditional notion that radiation serves to enhance the activation of antitumor immunity, an alternative scenario also exists in which T-cell activation by cancer immunotherapy may sensitize tumors to radiation treatment through mechanisms that include normalization of the tumor vasculature and tissue hypoxia. We describe the empirical observations from preclinical models that support such effects and discuss their implications for future research and trial design.
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Affiliation(s)
- Yifan Wang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Zhi-Gang Liu
- Department of Radiotherapy, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Department of Head and Neck Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University; Phase I Clinical Trial Laboratory, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Hengfeng Yuan
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Neurosurgery, Cancer Biology and Neurosciences, Mayo Clinic, Jacksonville, Florida
| | - Weiye Deng
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jing Li
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yuhui Huang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Betty Y S Kim
- Department of Neurosurgery, Cancer Biology and Neurosciences, Mayo Clinic, Jacksonville, Florida
| | - Michael D Story
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Wen Jiang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas.
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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13
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Hale LP, Rajam G, Carlone GM, Jiang C, Owzar K, Dugan G, Caudell D, Chao N, Cline JM, Register TC, Sempowski GD. Late effects of total body irradiation on hematopoietic recovery and immune function in rhesus macaques. PLoS One 2019; 14:e0210663. [PMID: 30759098 PMCID: PMC6373904 DOI: 10.1371/journal.pone.0210663] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 12/28/2018] [Indexed: 12/29/2022] Open
Abstract
While exposure to radiation can be lifesaving in certain settings, it can also potentially result in long-lasting adverse effects, particularly to hematopoietic and immune cells. This study investigated hematopoietic recovery and immune function in rhesus macaques Cross-sectionally (at a single time point) 2 to 5 years after exposure to a single large dose (6.5 to 8.4 Gray) of total body radiation (TBI) derived from linear accelerator-derived photons (2 MeV, 80 cGy/minute) or Cobalt 60-derived gamma irradiation (60 cGy/min). Hematopoietic recovery was assessed through measurement of complete blood counts, lymphocyte subpopulation analysis, and thymus function assessment. Capacity to mount specific antibody responses against rabies, Streptococcus pneumoniae, and tetanus antigens was determined 2 years after TBI. Irradiated macaques showed increased white blood cells, decreased platelets, and decreased frequencies of peripheral blood T cells. Effects of prior radiation on production and export of new T cells by the thymus was dependent on age at the time of analysis, with evidence of interaction with radiation dose for CD8+ T cells. Irradiated and control animals mounted similar mean antibody responses to proteins from tetanus and rabies and to 10 of 11 serotype-specific pneumococcal polysaccharides. However, irradiated animals uniformly failed to make antibodies against polysaccharides from serotype 5 pneumococci, in contrast to the robust responses of non-irradiated controls. Trends toward decreased serum levels of anti-tetanus IgM and slower peak antibody responses to rabies were also observed. Taken together, these data show that dose-related changes in peripheral blood cells and immune responses to both novel and recall antigens can be detected 2 to 5 years after exposure to whole body radiation. Longer term follow-up data on this cohort and independent validation will be helpful to determine whether these changes persist or whether additional changes become evident with increasing time since radiation, particularly as animals begin to develop aging-related changes in immune function.
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Affiliation(s)
- Laura P. Hale
- Department of Pathology and Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, United States of America
- * E-mail:
| | - Gowrisankar Rajam
- Immunobiology Laboratory, Centers for Disease Control and Prevention (CDC), Atlanta, GA, United States of America
| | - George M. Carlone
- Immunobiology Laboratory, Centers for Disease Control and Prevention (CDC), Atlanta, GA, United States of America
| | - Chen Jiang
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States of America
| | - Kouros Owzar
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States of America
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, United States of America
| | - Greg Dugan
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - David Caudell
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Nelson Chao
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
| | - J. Mark Cline
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Thomas C. Register
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Gregory D. Sempowski
- Department of Pathology and Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, United States of America
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States of America
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14
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Liu H, Wang H, Wu J, Wang Y, Zhao L, Li G, Zhou M. Lymphocyte nadir predicts tumor response and survival in locally advanced rectal cancer after neoadjuvant chemoradiotherapy: Immunologic relevance. Radiother Oncol 2018; 131:52-59. [PMID: 30773187 DOI: 10.1016/j.radonc.2018.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/30/2018] [Accepted: 12/02/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND PURPOSE Neoadjuvant chemoradiation (nCRT) could reduce tumor infiltrating lymphocytes. We examined absolute lymphocyte count (ALC) nadir during nCRT, pathologic response and prognosis for locally advanced rectal cancer (LARC). MATERIALS AND METHODS 102 patients with LARC (cT3-4N0, or node-positive) treated between 2010 and 2015 with nCRT followed by complete resection were analyzed. The ALC value was obtained prior to, weekly during the treatment, and one month after nCRT. Associations of ALC nadir with immune cells' infiltrations, pathologic response and survival were analyzed. RESULTS Twenty-four (23.5%) and 60 (58.9%) patients achieved pathologic complete response and partial response respectively. Response rate was higher in high ALC nadir group than low nadir group (89.7% vs. 67.6%, p = 0.006). Compared to low ALC nadir group, increased tumor infiltrates of CD4+ (4% vs. 17.5%, p < 0.001), CD8+ (8% vs.30%, p < 0.001) T cells and CD68+ macrophages (6% vs. 25%, p < 0.001) were observed in high ALC nadir group. High ALC nadir [OR = 4.32 (95% CI, 1.22-15.26), p = 0.023] and well differentiation [OR = 10.53 (1.87-59.36), p = 0.008] were associated with pathologic response. Patients with high ALC nadir yielded better DFS [HR = 0.36 (0.16-0.81), p = 0.010] and OS [HR = 0.24 (0.08-0.69), p = 0.004]. CONCLUSIONS Higher ALC nadir during nCRT is associated with a higher rate of pathologic response and better survival for LARC patients, suggesting that ALC may be a potential stratification strategy for LARC patients.
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Affiliation(s)
- Hao Liu
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China; Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hao Wang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jianhua Wu
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yiming Wang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Liying Zhao
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Guoxin Li
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Meijuan Zhou
- Department of Radiation Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China.
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15
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Moniruzzaman R, Rehman MU, Zhao QL, Jawaid P, Mitsuhashi Y, Imaue S, Fujiwara K, Ogawa R, Tomihara K, Saitoh JI, Noguchi K, Kondo T, Noguchi M. Roles of intracellular and extracellular ROS formation in apoptosis induced by cold atmospheric helium plasma and X-irradiation in the presence of sulfasalazine. Free Radic Biol Med 2018; 129:537-547. [PMID: 30355525 DOI: 10.1016/j.freeradbiomed.2018.10.434] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/11/2018] [Accepted: 10/19/2018] [Indexed: 12/11/2022]
Abstract
Sulfasalazine (SSZ) is a well-known anti-inflammatory drug and also an inhibitor of the cystine-glutamate antiporter that is known to reduce intracellular glutathione (GSH) level and increase cellular oxidative stress, indicating its anti-tumor potential. However, the combination of SSZ with other physical modalities remains unexplored. Here, the effects of SSZ on cold atmospheric helium plasma (He-CAP), which produces approximately 24 x higher concentration of hydroxyl radicals (. OH) compared to X-irradiation (IR) in aqueous solution, and on IR-induced apoptosis in human leukemia Molt-4 cells were studied to elucidate the mechanism of apoptosis enhancement. Both the Annexin V-FITC/PI and DNA fragmentation assay revealed that pre-treatment of cells with SSZ significantly enhanced He-CAP and IR-induced apoptosis. Similar enhancement was observed during the loss of mitochondrial membrane potential, intracellular Ca2+ ions, and mitochondria- and endoplasmic reticulum-related proteins. The concentration of intracellular reactive oxygen species (ROS) was much higher in He-CAP treated cells than in X-irradiated cells. On the other hand, strong enhancement of Fas expression and caspase-8 and -3 activities were only observed in X-irradiated cells. It might be possible that the higher concentration of intracellular and extracellular ROS suppressed caspase activities and Fas expression in He-CAP-treated cells. Notably, pretreating the cells with an antioxidant N-acetyl-L-cysteine (NAC) dramatically decreased apoptosis in cells treated by He-CAP, but not by IR. These results suggest that IR-induced apoptosis is due to specific and effective ROS distribution since intracellular ROS formation is marginal and the high production of ROS inside and outside of cells plays unique roles in He-CAP induced apoptosis. We conclude that our data provides efficacy and mechanistic insights for SSZ, which might be helpful for establishing SSZ as a future sensitizer in He-CAP or IR therapy for cancer.
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Affiliation(s)
- Rohan Moniruzzaman
- Department of Oral & Maxillofacial Surgery, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan; Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Mati Ur Rehman
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Qing-Li Zhao
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Paras Jawaid
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yohei Mitsuhashi
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Shuichi Imaue
- Department of Oral & Maxillofacial Surgery, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kumiko Fujiwara
- Department of Oral & Maxillofacial Surgery, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Ryohei Ogawa
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kei Tomihara
- Department of Oral & Maxillofacial Surgery, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Jun-Ichi Saitoh
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kyo Noguchi
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Takashi Kondo
- Department of Radiology, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Makoto Noguchi
- Department of Oral & Maxillofacial Surgery, Graduate School of Medicine & Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
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16
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Markovsky E, Budhu S, Samstein RM, Li H, Russell J, Zhang Z, Drill E, Bodden C, Chen Q, Powell SN, Merghoub T, Wolchok JD, Humm J, Deasy JO, Haimovitz-Friedman A. An Antitumor Immune Response Is Evoked by Partial-Volume Single-Dose Radiation in 2 Murine Models. Int J Radiat Oncol Biol Phys 2018; 103:697-708. [PMID: 30342090 DOI: 10.1016/j.ijrobp.2018.10.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 10/02/2018] [Accepted: 10/08/2018] [Indexed: 01/08/2023]
Abstract
PURPOSE This study examined tumor growth delay resulting from partial irradiation in preclinical mouse models. METHODS AND MATERIALS We investigated 67NR murine orthotopic breast tumors in both immunocompetent and nude mice. Treatment was delivered to 50% or 100% of the tumor using a 2 × 2 cm collimator on a microirradiator. Radiation response was modulated by treatment with anti-CD8 and anti-intercellular adhesion molecule (anti-ICAM) antibodies. Similar experiments were performed using the less immunogenic Lewis lung carcinoma mouse model. Tumor growth delay and γ-H2AX phosphorylation were measured, and immune response was assessed by immunofluorescence and flow cytometry at 1 and 7 days after radiation therapy. Tumor expression of cellular adhesion molecules was also measured at different times after radiation therapy. RESULTS Partial irradiation led to tumor responses similar to those of fully exposed tumors in immunocompetent mice, but not in nude mice. After a single dose of 10 Gy, infiltration of CD8+ T cells was observed along with increased expression of ICAM. The response to 10 Gy in hemi-irradiated tumors was abrogated by treatment with either anti-CD8 or anti-ICAM antibodies. Similar responses were obtained in the less immunogenic Lewis lung carcinoma mouse model delivering 15 Gy to half the tumor volume. Treatment with FTY720, a compound that inhibits T-cell egress from lymph nodes, did not affect tumor response at the time of CD8+ T cells infiltration in the nonirradiated area of the tumor. This result indicated that the most likely source of these cells is the irradiated portion of the hemi-irradiated tumors. In addition, a significant abscopal effect was observed after partial irradiation with a single dose of 10 Gy in the 67NR model. CONCLUSIONS In these models, radiation controls tumor growth both directly through cell killing and indirectly through immune activation. This outcome raises the possibility that this effect could be induced in the clinic.
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Affiliation(s)
- Ela Markovsky
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sadna Budhu
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Robert M Samstein
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Hongyan Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - James Russell
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Zhigang Zhang
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Esther Drill
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chloe Bodden
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Qing Chen
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Simon N Powell
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Taha Merghoub
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jedd D Wolchok
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, New York
| | - John Humm
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Joseph O Deasy
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
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17
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Odinokov D, Hamblin MR. Aging of lymphoid organs: Can photobiomodulation reverse age-associated thymic involution via stimulation of extrapineal melatonin synthesis and bone marrow stem cells? J Biophotonics 2018; 11:e201700282. [PMID: 29227581 PMCID: PMC5995606 DOI: 10.1002/jbio.201700282] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 12/07/2017] [Indexed: 05/27/2023]
Abstract
Thymic atrophy and the subsequent reduction in T-cell production are the most noticeable age-related changes affecting lymphoid organs in the immune system. In fact, thymic involution has been described as "programmed aging." New therapeutic approaches, such as photobiomodulation (PBM), may reduce or reverse these changes. PBM (also known as low-level laser therapy) involves the delivery of non-thermal levels of red or near-infrared light that are absorbed by mitochondrial chromophores, in order to prevent tissue death and stimulate healing and regeneration. PBM may reverse or prevent thymic involution due to its ability to induce extrapineal melatonin biosynthesis via cyclic adenosine monophosphate (AMP) or NF-kB activation, or alternatively by stimulating bone marrow stem cells that can regenerate the thymus. This perspective puts forward a hypothesis that PBM can alter thymic involution, improve immune functioning in aged people and even extend lifespan.
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Affiliation(s)
- Denis Odinokov
- Department of Biomedical Engineering, Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts
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18
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Cela EM, Gonzalez CD, Friedrich A, Ledo C, Paz ML, Leoni J, Gómez MI, González Maglio DH. Daily very low UV dose exposure enhances adaptive immunity, compared with a single high-dose exposure. Consequences for the control of a skin infection. Immunology 2018; 154:510-521. [PMID: 29377107 PMCID: PMC6002207 DOI: 10.1111/imm.12901] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 12/24/2017] [Accepted: 01/12/2018] [Indexed: 12/22/2022] Open
Abstract
Ultraviolet radiation (UVr) promotes several well-known molecular changes, which may ultimately impact on health. Some of these effects are detrimental, like inflammation, carcinogenesis and immunosuppression. On the other hand, UVr also promotes vitamin D synthesis and other beneficial effects. We recently demonstrated that exposure to very low doses of UVr on four consecutive days [repetitive low UVd (rlUVd)] does not promote an inflammatory state, nor the recruitment of neutrophils or lymphocytes, as the exposure to a single high UV dose (shUVd) does. Moreover, rlUVd reinforce the epithelium by increasing antimicrobial peptides transcription and epidermal thickness. The aim of this study was to evaluate the adaptive immune response after shUVd and rlUVd, determining T-cell and B-cell responses. Finally, we challenged animals exposed to both irradiation procedures with Staphylococcus aureus to study the overall effects of both innate and adaptive immunity during a cutaneous infection. We observed, as expected, a marked suppression of T-cell and B-cell responses after exposure to an shUVd but a novel and significant increase in both specific responses after exposure to rlUVd. However, the control of the cutaneous S. aureus infection was defective in this last group, suggesting that responses against pathogens cannot be ruled out from isolated stimuli.
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Affiliation(s)
- Eliana M. Cela
- Universidad de Buenos AiresFacultad de Farmacia y BioquímicaCátedra de InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Estudios de la Inmunidad Humoral (IDEHU)Buenos AiresArgentina
| | - Cintia Daniela Gonzalez
- Universidad de Buenos AiresFacultad de MedicinaDepartamento de Microbiología, Parasitología e InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Microbiología y Parasitología Médica (IMPaM)Buenos AiresArgentina
| | - Adrian Friedrich
- Universidad de Buenos AiresFacultad de Farmacia y BioquímicaCátedra de InmunologíaBuenos AiresArgentina
| | - Camila Ledo
- Universidad de Buenos AiresFacultad de MedicinaDepartamento de Microbiología, Parasitología e InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Microbiología y Parasitología Médica (IMPaM)Buenos AiresArgentina
| | - Mariela Laura Paz
- Universidad de Buenos AiresFacultad de Farmacia y BioquímicaCátedra de InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Estudios de la Inmunidad Humoral (IDEHU)Buenos AiresArgentina
| | - Juliana Leoni
- CONICET – Universidad de Buenos AiresInstituto de Estudios de la Inmunidad Humoral (IDEHU)Buenos AiresArgentina
| | - Marisa Inés Gómez
- Universidad de Buenos AiresFacultad de MedicinaDepartamento de Microbiología, Parasitología e InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Microbiología y Parasitología Médica (IMPaM)Buenos AiresArgentina
| | - Daniel H. González Maglio
- Universidad de Buenos AiresFacultad de Farmacia y BioquímicaCátedra de InmunologíaBuenos AiresArgentina
- CONICET – Universidad de Buenos AiresInstituto de Estudios de la Inmunidad Humoral (IDEHU)Buenos AiresArgentina
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Monti G, Guerrini L, Magni E, Cruciani G, Bardella D. The Mid-Term Effects of Radiotherapy on T and B Lymphocytes: An Evaluation of Cellular Immunity with Standard Methods and Monoclonal Antibodies. Tumori 2018; 70:335-8. [PMID: 6332401 DOI: 10.1177/030089168407000407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The mid-term effects of radiotherapy on T and B peripheral lymphocytes of 15 patients treated for various malignancies were evaluated. All patients had a significant impairment of lymphocyte functions, as measured by blastogenesis after stimulation with phytohemagglutinin and pokeweed mitogen. Such impairment lasted for 1 year after the completion of radiotherapy, when numerical variability of T and B subpopulations, observed during and after radiation treatment, was restored to initial values.
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Chulenbayeva L, Ilderbayev O, Taldykbayev Z, Ilderbayeva G, Argynbekova A. [PHYTOCORRECTION OF IMMUNOLOGICAL AND BIOCHEMICAL CHANGES IN THE COMBINED IMPACT OF COAL DUST AND HIGH DOSE OF RADIATION]. Georgian Med News 2018:141-150. [PMID: 29578440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The objective of this researsh is to study the effects of Eminium Regelii phytopreparation (ERP) on immune status and free radical oxidation in the tissues of the adrenal glands and immunocompetent organs after combined exposure to 6 Gy dose of gamma irradiation and coal dust (remote period). The study was realized on 30 white laboratory male rats of the Wistar line, weighing 240±20g, that were divided into equal 3 groups: I group - intact, ІІ group - were exposured to combined effects of coal dust and gamma irradiation, III group - were exposured to combined effects and in parallel taking phytopreparation Eminium Regel. The animals of II and III groups were irradiated 90 days prior to the study at the TERAGAM 60Co radiotherapy unit ("ISOTREND spol. S.r.o.", Czech Republic) in dose of 6 Gy once. Experimental animals received phytopreparation of ER 2.5 mg/kg per day on calculate of body mass for 14 days. The results of the conducted studies showed that in the long-term period after the actions of the sublethal dose of gamma radiation and coal dust, significant changes were revealed that were characterized by a decrease in immunological reactivity, increased lipoperoxidation and inhibition of antioxidant defense activity of the organism. After exposure to ER, oxidative stress was alleviated, sufficient restoration of antioxidant protection and immune system indices, which were disrupted by the combined effects of a single high dose of radiation and a prolonged three-month inhalation of coal dust.
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Affiliation(s)
- L Chulenbayeva
- L.N. Gumilyov Eurasian National University, Astana; Semey State Medical University, Semey, Kazakhstan
| | - O Ilderbayev
- L.N. Gumilyov Eurasian National University, Astana; Semey State Medical University, Semey, Kazakhstan
| | - Zh Taldykbayev
- L.N. Gumilyov Eurasian National University, Astana; Semey State Medical University, Semey, Kazakhstan
| | - G Ilderbayeva
- L.N. Gumilyov Eurasian National University, Astana; Semey State Medical University, Semey, Kazakhstan
| | - A Argynbekova
- L.N. Gumilyov Eurasian National University, Astana; Semey State Medical University, Semey, Kazakhstan
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Abstract
A new study in mice demonstrates that activating the RIG-I and STING signaling pathways, normally associated with antiviral immunity, can help protect the intestinal epithelium from damage caused by chemotherapy and radiation following stem cell transplantation. The findings may help in developing strategies to prevent graft-versus-host disease in patients with leukemia and other blood disorders.
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22
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Lachert E, Woźniak J, Antoniewicz-Papis J, Krzywdzińska A, Kubis J, Mikołowska A, Letowska M. Study of CD69 antigen expression and integrity of leukocyte cellular membrane in stored platelet concentrates following irradiation and treatment with Mirasol® PRT System. ADV CLIN EXP MED 2017; 26:7-13. [PMID: 28397426 DOI: 10.17219/acem/68290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Leukocytes in transfused blood components, particularly residual lymphocytes, have been shown to contribute to the occurrence of various adverse reactions. One of the most severe is transfusionassociated graft versus host disease (TA-GvHD) following transfusion of blood components contaminated with immunocompetent T lymphocytes. Irradiation is a routine method for protection against TA-GvHD. According to the literature, some pathogen reduction methods have also been proven effective for the inactivation of T lymphocytes, and so they may be considered as an alternative to irradiation. OBJECTIVES Comparison of CD69 antigen expression and the integrity of the leukocyte cellular membrane in stored platelet concentrates (PCs) following irradiation with the Gammacell 3000 Elan (Nordion Inc., Ottawa, Canada) and treatment with the Mirasol® Pathogen Reduction Technology (PRT) System (Terumo BCT, Lakewood, USA). MATERIAL AND METHODS The study included seven experiments. For each experiment we used 3 PCs, for Mirasol® PRT System treatment (M), for Gammacell 3000 Elan irradiation (R), and for the control (C). 7-amino-actinomycin D (7-AAD, Becton Dickinson, Franklin Lakes, USA) permeability was used to determine lymphocyte viability while CD69 antigen expression was the marker of lymphocyte activation. Analyses of 7-AAD and CD69 antigen expression were performed in a FACS Canto I flow cytometer (Becton Dickinson, USA). RESULTS During 6 storage days, viable lymphocyte count decreased to 28% (p = 0.001) in the Mirasol® PRT System treated PCs and to 65% (p = 0.004) in the irradiated PCs. A statistically significant increase in CD69 expression in the irradiated PCs was observed; 1.3-fold on day 3 and 1.5-fold on day 6. In the Mirasol ® PRT System treated PCs, no statistically significant increase was observed. CONCLUSIONS The in vitro results suggest that the Mirasol® PRT System is as effective as irradiation due to donor leukocyte inactivation capacity.
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Affiliation(s)
- Elżbieta Lachert
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Jolanta Woźniak
- Department of Diagnostics for Hematology, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Jolanta Antoniewicz-Papis
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Agnieszka Krzywdzińska
- Department of Diagnostics for Hematology, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Jolanta Kubis
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Agata Mikołowska
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
| | - Magdalena Letowska
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, Warszawa, Poland
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Mollet M, Lafitte P, Morand B, Hoarau T, Piot P, Thomas AL, Fréchet M, Nicolaÿ JF. New nature-inspired urocanic acid mimic preventing DNA damages and immunosuppressive signalling induced by ultraviolet-B radiations. J Cosmet Sci 2017; 68:99-106. [PMID: 29465390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- M Mollet
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - P Lafitte
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - B Morand
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - T Hoarau
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - P Piot
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - A L Thomas
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - M Fréchet
- Exsymol S.A.M., Monaco, Principality of Monaco
| | - J-F Nicolaÿ
- Exsymol S.A.M., Monaco, Principality of Monaco
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24
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Bajaj MS, Kulkarni RS, Ghode SS, Limaye LS, Kale VP. Irradiation-induced secretion of BMP4 by marrow cells causes marrow adipogenesis post-myelosuppression. Stem Cell Res 2016; 17:646-653. [PMID: 27865162 DOI: 10.1016/j.scr.2016.11.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 10/17/2016] [Accepted: 11/07/2016] [Indexed: 11/17/2022] Open
Abstract
Pre-transplant myeloablation is associated with marrow adipogenesis, resulting in delayed engraftment of hematopoietic stem cells (HSCs). This is strongly undesirable, especially when the donor HSCs are fewer in numbers or have compromised functionality. The molecular mechanisms behind irradiation-induced marrow adipogenesis have not been extensively investigated. Here we show that bone marrow (BM) cells, especially T-cells and stromal cells, express and secrete copious amounts of BMP4 in response to irradiation, which causes the bone marrow stromal cells to commit to adipocyte lineage, thereby contributing to an increase in bone marrow adipogenesis. We further demonstrate that Simvastatin inhibits the BMP4-mediated adipogenic commitment of marrow stromal cells by inhibiting Ppar-γ expression. Importantly, Simvastatin does not prevent BMP4 secretion by the BM cells, and thus does not interfere with its salutary role in post-transplant hematopoietic regeneration. Our data identify previously unknown mechanisms operative in marrow adipogenesis post-myeloablation. They also reveal the molecular mechanisms behind the advantage of using Simvastatin as a niche-targeting agent to improve HSC engraftment.
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Affiliation(s)
- Manmohan S Bajaj
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Rohan S Kulkarni
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Suprita S Ghode
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Lalita S Limaye
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Vaijayanti P Kale
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra 411007, India.
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25
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Gabunia T, Turabelidze S, Machavariani M, Enukidze M, Kipiani NV, Sharashenidze G, Sanikidze T. IMPACT OF LASER THERAPY ON THE PROLIFERATION OF VARIOUS CULTURED CELLS. Georgian Med News 2016:100-105. [PMID: 27845296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The purpose of our study was to establish the laser effects on the epithelial tissue and immune metabolism. The research was conducted on human leukemic mature T cells (Jurkat cells) (DSMZ-Deutshe Sammulung von Mikroorganismen und Zellkulturen (Germany)) and MDCK cell line (Lugar Laboratory, Tbilisi, Georgia). Cells were radiated by Laser device "ОПТОДАН"- АЛСТ-01 (power 5 W) 3 -7 days (4 minutes per day). With the aim to model oxidative stress-induced apoptosis, 30% hydrogen peroxide (H2O2) (Sigma) is added to Jurkat cells, in doses 25 and 50μM [4, 5]; and MDCK cells, in doses 400 and 800 μM [19] added to incubation suspension with subsequent incubation for 24, 48 and 72 hrs. Control group is represented by intact Jurkat and MDCK cells. MTT test was used to assess the cells' proliferation activity (viability). Statistical analyses of the obtained results were performed by SPSS (version 10.0) program package. Our research results show that effects of laser therapy on proliferation of cell cultures depend on the type of cells and incubation conditions. Laser irradiation revealed equal efficacy in both types of the intact cells and increased their viability in time-dependent manner. Jurkat cells turned out to be more susceptible to oxidative stress. Laser therapy only slightly improved their viability at moderate intensity of oxidative stress and proved to be ineffective in strong oxidative stress conditions. The MDCK cells appeared to be more sustainable to oxidative stress; significant changes in these cells viability were observed only when high doses of hydrogen peroxide were added to their incubation medium. Thus, laser therapy was effective for these cells incubated in both regimens of oxidative stress. Our research results prove the efficacy of laser therapy use during periodontitis with the aim to recover epithelium in the oral cavity and to modulate immune metabolism in the patient's body.
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Affiliation(s)
- T Gabunia
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - S Turabelidze
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - M Machavariani
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - M Enukidze
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - Nina V Kipiani
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - G Sharashenidze
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
| | - T Sanikidze
- Tbilisi State Medical University, Institute of Medical Biotechnology; Davit Aghmashenebeli University of Georgia Tbilisi, Georgia
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26
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Derer A, Frey B, Fietkau R, Gaipl US. Immune-modulating properties of ionizing radiation: rationale for the treatment of cancer by combination radiotherapy and immune checkpoint inhibitors. Cancer Immunol Immunother 2016; 65:779-86. [PMID: 26590829 PMCID: PMC11028616 DOI: 10.1007/s00262-015-1771-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 10/30/2015] [Indexed: 01/13/2023]
Abstract
Radiotherapy (RT) utilizes the DNA-damaging properties of ionizing radiation to control tumor growth and ultimately kill tumor cells. By modifying the tumor cell phenotype and the tumor microenvironment, it may also modulate the immune system. However, out-of-field reactions of RT mostly assume further immune activation. Here, the sequence of the applications of RT and immunotherapy is crucial, just as the dose and fractionation may be. Lower single doses may impact on tumor vascularization and immune cell infiltration in particular, while higher doses may impact on intratumoral induction and production of type I interferons. The induction of immunogenic cancer cell death seems in turn to be a common mechanism for most RT schemes. Dendritic cells (DCs) are activated by the released danger signals and by taking up tumor peptides derived from irradiated cells. DCs subsequently activate T cells, a process that has to be tightly controlled to ensure tolerance. Inhibitory pathways known as immune checkpoints exist for this purpose and are exploited by tumors to inhibit immune responses. Cytotoxic T lymphocyte antigen 4 (CTLA-4) and programmed cell death protein 1 (PD-1) on T cells are two major checkpoints. The biological concepts behind the findings that RT in combination with anti-CTLA-4 and/or anti-PD-L1 blockade stimulates CD8+ T cell-mediated anti-tumor immunity are reviewed in detail. On this basis, we suggest clinically significant combinations and sequences of RT and immune checkpoint inhibition. We conclude that RT and immune therapies complement one another.
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Affiliation(s)
- Anja Derer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsstraße 27, 91054, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsstraße 27, 91054, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsstraße 27, 91054, Erlangen, Germany.
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27
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Seifert L, Werba G, Tiwari S, Giao Ly NN, Nguy S, Alothman S, Alqunaibit D, Avanzi A, Daley D, Barilla R, Tippens D, Torres-Hernandez A, Hundeyin M, Mani VR, Hajdu C, Pellicciotta I, Oh P, Du K, Miller G. Radiation Therapy Induces Macrophages to Suppress T-Cell Responses Against Pancreatic Tumors in Mice. Gastroenterology 2016; 150:1659-1672.e5. [PMID: 26946344 PMCID: PMC4909514 DOI: 10.1053/j.gastro.2016.02.070] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 01/22/2016] [Accepted: 02/25/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The role of radiation therapy in the treatment of patients with pancreatic ductal adenocarcinoma (PDA) is controversial. Randomized controlled trials investigating the efficacy of radiation therapy in patients with locally advanced unresectable PDA have reported mixed results, with effects ranging from modest benefit to worse outcomes compared with control therapies. We investigated whether radiation causes inflammatory cells to acquire an immune-suppressive phenotype that limits the therapeutic effects of radiation on invasive PDAs and accelerates progression of preinvasive foci. METHODS We investigated the effects of radiation therapy in p48(Cre);LSL-Kras(G12D) (KC) and p48(Cre);LSLKras(G12D);LSL-Trp53(R172H) (KPC) mice, as well as in C57BL/6 mice with orthotopic tumors grown from FC1242 cells derived from KPC mice. Some mice were given neutralizing antibodies against macrophage colony-stimulating factor 1 (CSF1 or MCSF) or F4/80. Pancreata were exposed to doses of radiation ranging from 2 to 12 Gy and analyzed by flow cytometry. RESULTS Pancreata of KC mice exposed to radiation had a higher frequency of advanced pancreatic intraepithelial lesions and more foci of invasive cancer than pancreata of unexposed mice (controls); radiation reduced survival time by more than 6 months. A greater proportion of macrophages from radiation treated invasive and preinvasive pancreatic tumors had an immune-suppressive, M2-like phenotype compared with control mice. Pancreata from mice exposed to radiation had fewer CD8(+) T cells than controls, and greater numbers of CD4(+) T cells of T-helper 2 and T-regulatory cell phenotypes. Adoptive transfer of T cells from irradiated PDA to tumors of control mice accelerated tumor growth. Radiation induced production of MCSF by PDA cells. A neutralizing antibody against MCSF prevented radiation from altering the phenotype of macrophages in tumors, increasing the anti-tumor T-cell response and slowing tumor growth. CONCLUSIONS Radiation treatment causes macrophages murine PDA to acquire an immune-suppressive phenotype and disabled T-cell-mediated anti-tumor responses. MCSF blockade negates this effect, allowing radiation to have increased efficacy in slowing tumor growth.
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Affiliation(s)
- Lena Seifert
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Gregor Werba
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Shaun Tiwari
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Nancy Ngoc Giao Ly
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Susanna Nguy
- Department of Radiation Oncology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Sara Alothman
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Dalia Alqunaibit
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Antonina Avanzi
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Donnele Daley
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Rocky Barilla
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Daniel Tippens
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Alejandro Torres-Hernandez
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Mautin Hundeyin
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Vishnu R Mani
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Cristina Hajdu
- Department of Pathology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Ilenia Pellicciotta
- Department of Pathology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Philmo Oh
- Department of Radiation Oncology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - Kevin Du
- Department of Radiation Oncology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York
| | - George Miller
- Department of Surgery, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York; Department of Cell Biology, S Arthur Localio Laboratory, New York University School of Medicine, New York, New York.
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28
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Grygoryev D, Gauny S, Lasarev M, Ohlrich A, Kronenberg A, Turker MS. Charged particle mutagenesis at low dose and fluence in mouse splenic T cells. Mutat Res 2016; 788:32-40. [PMID: 27055360 DOI: 10.1016/j.mrfmmm.2016.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/25/2016] [Accepted: 03/28/2016] [Indexed: 06/05/2023]
Abstract
High-energy heavy charged particles (HZE ions) found in the deep space environment can significantly affect human health by inducing mutations and related cancers. To better understand the relation between HZE ion exposure and somatic mutation, we examined cell survival fraction, Aprt mutant frequencies, and the types of mutations detected for mouse splenic T cells exposed in vivo to graded doses of densely ionizing (48)Ti ions (1GeV/amu, LET=107 keV/μm), (56)Fe ions (1GeV/amu, LET=151 keV/μm) ions, or sparsely ionizing protons (1GeV, LET=0.24 keV/μm). The lowest doses for (48)Ti and (56)Fe ions were equivalent to a fluence of approximately 1 or 2 particle traversals per nucleus. In most cases, Aprt mutant frequencies in the irradiated mice were not significantly increased relative to the controls for any of the particles or doses tested at the pre-determined harvest time (3-5 months after irradiation). Despite the lack of increased Aprt mutant frequencies in the irradiated splenocytes, a molecular analysis centered on chromosome 8 revealed the induction of radiation signature mutations (large interstitial deletions and complex mutational patterns), with the highest levels of induction at 2 particles nucleus for the (48)Ti and (56)Fe ions. In total, the results show that densely ionizing HZE ions can induce characteristic mutations in splenic T cells at low fluence, and that at least a subset of radiation-induced mutant cells are stably retained despite the apparent lack of increased mutant frequencies at the time of harvest.
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Affiliation(s)
- Dmytro Grygoryev
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States
| | - Stacey Gauny
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Michael Lasarev
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States
| | - Anna Ohlrich
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States
| | - Amy Kronenberg
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Mitchell S Turker
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States.
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Oradovskaya IV. [30 Years of the Tragedy in Chernobyl. Clinical and Immunological Effects in Liquidators of Consequences of the Chernobyl Accident. Main Results of Long-Term Monitoring]. Radiats Biol Radioecol 2016; 56:251-273. [PMID: 30629873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Results of long-term immunological monitoring of liquidators of consequences of the Chernobyl accident and the revealed regularities are presented. Earlier the unknown phenomenon of the activating influence of radiation at small doses on the T-cellular link of the immune status (IS), mainly on T-lymphocytes/helper was for the first time established. This phenomenon came to light among participants of LPA working in an extreme situation of 1986 in the zones of the CN PP and further was confirmed by inspection of the personnel of a 30-km zone of the CNPP in 1990; the personnel at radiation dangerous nuclear power plants and the population living near these objects, the population polluted by radionuclides on the territories of the Bryansk region. This effect in the presence of clinical symptoms which can be caused by influence of a radiation factor was most expressed. Prognostic value of the changes in the development of IS immune insufficiency (ID), cellular and humoral link in the near future after taking part in clean-up workers are established. These laws have a theoretical value for immunology and radiobiology, and practical health care as well, as the formation of a phenotype of IS defines approaches to immunoprophylactics and immunocorrection, as in extreme situations, and in the following years. During the delayed periods development of an imbalance, immune in- sufficiency in T-lymphocytes and natural killer cells is revealed. By the end of the 3rd - the beginning of the 4th fifth anniversary after the accident the high frequency of clinical manifestations of immune dysfunction and chronic somatic diseases was defined. The immunological characteristic of an immunoproliferative syn- drome that allowed one to reveal predictors of early diagnostics of malignant new growths in immune status is for the first time established. Clinical-immunological signs of early aging of liquidators and features of changes in liquidators in the lipidic status depending on the age and risk factors of Chernobyl accident are revealed. Features of antiviral protection of an organism ofliquidators that is defined by changes in the cluster of genes of cytokines (IL28A, IL28B and IL29) localized on the 19th chromosome (19ql3) of the person are established. Establishment of genotypes can be associated with a positive effect of treatment, steady and long remission of GVI.
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Moraitis N, Christopoulou M, Nikita KS, Voulgaridou GP, Anestopoulos I, Panagiotidis MI, Pappa A. In-vitro assessment of Jurkat T-cells response to 1966 MHz electromagnetic fields in a GTEM cell. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:2592-5. [PMID: 26736822 DOI: 10.1109/embc.2015.7318922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This paper presents the experimental configuration and procedure as well as the in-vitro assessment of Jurkat T-cells response to 1966 MHz exposure of modulated and unmodulated electromagnetic signals within a Gigahertz Transverse Electro-Magnetic (GTEM) cell. Different combinations of electric field intensity, exposure duration and modulation schemes were applied. Exposures at continuous wave (CW) signal at low intensity levels (3 V/m) did not induce any significant DNA damage, but a slight increase was observed for extreme stress levels (76.4 V/m). On the other hand, the results indicate that, at both, low and high electric field intensity UMTS (Universal Mobile Telecommunications System) signal could be statistically related to DNA damage in-vitro. Nevertheless, further experiments are required, increasing the statistical number of samples and recruiting more DNA damage endpoints before conclusive statements are drawn.
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Lei R, Zhao T, Li Q, Wang X, Ma H, Deng Y. Carbon Ion Irradiated Neural Injury Induced the Peripheral Immune Effects in Vitro or in Vivo. Int J Mol Sci 2015; 16:28334-46. [PMID: 26633364 PMCID: PMC4691056 DOI: 10.3390/ijms161226109] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/11/2015] [Accepted: 11/13/2015] [Indexed: 12/14/2022] Open
Abstract
Carbon ion radiation is a promising treatment for brain cancer; however, the immune system involved long-term systemic effects evoke a concern of complementary and alternative therapies in clinical treatment. To clarify radiotherapy caused fundamental changes in peripheral immune system, examinations were performed based on established models in vitro and in vivo. We found that brain-localized carbon ion radiation of neural cells induced complex changes in the peripheral blood, thymus, and spleen at one, two, and three months after its application. Atrophy, apoptosis, and abnormal T-cell distributions were observed in rats receiving a single high dose of radiation. Radiation downregulated the expression of proteins involved in T-cell development at the transcriptional level and increased the proportion of CD3⁺CD4(-)CD8⁺ T-cells in the thymus and the proportion of CD3⁺CD4⁺CD8(-) T-cells in the spleen. These data show that brain irradiation severely affects the peripheral immune system, even at relatively long times after irradiation. In addition, they provide valuable information that will implement the design of biological-based strategies that will aid brain cancer patients suffering from the long-term side effects of radiation.
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Affiliation(s)
- Runhong Lei
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Tuo Zhao
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Qiang Li
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Xiao Wang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China.
| | - Hong Ma
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
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Anzengruber F, Avci P, de Freitas LF, Hamblin MR. T-cell mediated anti-tumor immunity after photodynamic therapy: why does it not always work and how can we improve it? Photochem Photobiol Sci 2015; 14:1492-1509. [PMID: 26062987 PMCID: PMC4547550 DOI: 10.1039/c4pp00455h] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Photodynamic therapy (PDT) uses the combination of non-toxic photosensitizers and harmless light to generate reactive oxygen species that destroy tumors by a combination of direct tumor cell killing, vascular shutdown, and activation of the immune system. It has been shown in some animal models that mice that have been cured of cancer by PDT, may exhibit resistance to rechallenge. The cured mice can also possess tumor specific T-cells that recognize defined tumor antigens, destroy tumor cells in vitro, and can be adoptively transferred to protect naïve mice from cancer. However, these beneficial outcomes are the exception rather than the rule. The reasons for this lack of consistency lie in the ability of many tumors to suppress the host immune system and to actively evade immune attack. The presence of an appropriate tumor rejection antigen in the particular tumor cell line is a requisite for T-cell mediated immunity. Regulatory T-cells (CD25+, Foxp3+) are potent inhibitors of anti-tumor immunity, and their removal by low dose cyclophosphamide can potentiate the PDT-induced immune response. Treatments that stimulate dendritic cells (DC) such as CpG oligonucleotide can overcome tumor-induced DC dysfunction and improve PDT outcome. Epigenetic reversal agents can increase tumor expression of MHC class I and also simultaneously increase expression of tumor antigens. A few clinical reports have shown that anti-tumor immunity can be generated by PDT in patients, and it is hoped that these combination approaches may increase tumor cures in patients.
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Affiliation(s)
- Florian Anzengruber
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Pinar Avci
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
- Department of Dermatology, Dermatooncology and Venerology, Semmelweis University School of Medicine, Budapest, 1085, Hungary
| | - Lucas Freitas de Freitas
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
- Programa de Pos Graduacao Interunidades Bioengenharia – USP – Sao Carlos, Brazil
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, USA
- Correspondence to: Michael R Hamblin, PhD, Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA.
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Ohtani S, Ushiyama A, Maeda M, Ogasawara Y, Wang J, Kunugita N, Ishii K. The effects of radio-frequency electromagnetic fields on T cell function during development. J Radiat Res 2015; 56:467-74. [PMID: 25835473 PMCID: PMC4426920 DOI: 10.1093/jrr/rru126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 12/13/2014] [Accepted: 12/20/2014] [Indexed: 05/24/2023]
Abstract
With the widespread use of radio-frequency devices, it is increasingly important to understand the biological effects of the associated electromagnetic fields. Thus, we investigated the effects of radio-frequency electromagnetic fields (RF-EMF) on T cell responses during development due to the lack of science-based evidence for RF-EMF effects on developmental immune systems. Sprague Dawley (SD) rats were exposed to 2.14-GHz wideband code division multiple-access (W-CDMA) RF signals at a whole-body specific absorption rate (SAR) of 0.2 W/kg. Exposures were performed for a total of 9 weeks spanning in utero development, lactation and the juvenile period. Rats were continuously exposed to RF-EMF for 20 h/day, 7 days/week. Comparisons of control and exposed rats using flow cytometry revealed no changes in the numbers of CD4/CD8 T cells, activated T cells or regulatory T cells among peripheral blood cells, splenocytes and thymocytes. Expression levels of 16 genes that regulate the immunological Th1/Th2 paradigm were analyzed using real-time PCR in the spleen and thymus tissues of control and RF-EMF-exposed rats. Although only the Il5 gene was significantly regulated in spleen tissues, Il4, Il5 and Il23a genes were significantly upregulated in thymus tissues following exposure to RF-EMF. However, ELISAs showed no changes in serum IL-4 protein concentrations. These data indicate no adverse effects of long-term RF-EMF exposure on immune-like T cell populations, T cell activation, or Th1/Th2 balance in developing rats, although significant transcriptional effects were observed.
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Affiliation(s)
- Shin Ohtani
- Department of Hygienic Chemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Akira Ushiyama
- Department of Environmental Health, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197, Japan
| | - Machiko Maeda
- Department of Hygienic Chemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Yuki Ogasawara
- Department of Hygienic Chemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Jianqing Wang
- Department of Computer Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 466-8555, Japan
| | - Naoki Kunugita
- Department of Environmental Health, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197, Japan
| | - Kazuyuki Ishii
- Department of Hygienic Chemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
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Reusch M, Christophers E. Psoriasis: a continuing challenge for phototherapy. Curr Probl Dermatol 2015; 15:219-31. [PMID: 2419039 DOI: 10.1159/000412104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Stingl G, Aberer W, Romani N, Elbe A, Tschachler E. Effects of short-wave UV and PUVA treatment on structure and phenotype of bone marrow-derived dendritic cells of the mouse epidermis. Curr Probl Dermatol 2015; 15:195-204. [PMID: 2868838 DOI: 10.1159/000412102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
Adaptive immune resistance ablates effective anti-tumor immune responses. In a recent issue of Nature, Victor and colleagues describe that anti-PD-L1 combats adaptive immune resistance upon localized radiation plus anti-CTLA-4 therapy. The superior activity of radiation and dual immune checkpoint blockade is mediated by non-redundant immune mechanisms in cancer.
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Affiliation(s)
- Shin Foong Ngiow
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; School of Medicine, University of Queensland, Herston, QLD 4006, Australia
| | - Grant A McArthur
- Cancer Therapeutics Programs, Trescowthick Laboratories, Peter MacCallum Cancer Centre, St. Andrews Place, East Melbourne, VIC 3002, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; School of Medicine, University of Queensland, Herston, QLD 4006, Australia.
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Adlard AL, Dovedi SJ, Telfer BA, Koga-Yamakawa E, Pollard C, Honeychurch J, Illidge TM, Murata M, Robinson DT, Jewsbury PJ, Wilkinson RW, Stratford IJ. A novel systemically administered Toll-like receptor 7 agonist potentiates the effect of ionizing radiation in murine solid tumor models. Int J Cancer 2014; 135:820-9. [PMID: 24390981 PMCID: PMC4286010 DOI: 10.1002/ijc.28711] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 10/22/2013] [Accepted: 11/20/2013] [Indexed: 12/18/2022]
Abstract
Although topical TLR7 therapies such as imiquimod have proved successful in the treatment of dermatological malignancy, systemic delivery may be required for optimal immunotherapy of nondermatological tumors. We report that intravenous delivery of the novel small molecule TLR7 agonist, DSR-6434, leads to the induction of type 1 interferon and activation of T and B lymphocytes, NK and NKT cells. Our data demonstrate that systemic administration of DSR-6434 enhances the efficacy of ionizing radiation (IR) and leads to improved survival in mice bearing either CT26 or KHT tumors. Of the CT26 tumor-bearing mice that received combined therapy, 55% experienced complete tumor resolution. Our data reveal that these long-term surviving mice have a significantly greater frequency of tumor antigen specific CD8(+) T cells when compared to age-matched tumor-naïve cells. To evaluate therapeutic effects on spontaneous metastases, we showed that combination of DSR-6434 with local IR of the primary tumor significantly reduced metastatic burden in the lung, when compared to time-matched cohorts treated with IR alone. The data demonstrate that systemic administration of the novel TLR7 agonist DSR-6434 in combination with IR primes an antitumor CD8(+) T-cell response leading to improved survival in syngeneic models of colorectal carcinoma and fibrosarcoma. Importantly, efficacy extends to sites outside of the field of irradiation, reducing metastatic load. Clinical evaluation of systemic TLR7 therapy in combination with IR for the treatment of solid malignancy is warranted.
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Affiliation(s)
- Amy L Adlard
- Experimental Oncology Group, School of Pharmacy and Pharmaceutical Sciences, Manchester Cancer Research Centre, University of Manchester, Manchester Academic Health Sciences Centre, United Kingdom
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Selivanova EI, Zamulaeva IA, Saenko AS. [Influence of chronic irradiation on the distribution of blood lymphocyte subpopulations among professionals of the atomic industry]. Radiats Biol Radioecol 2014; 54:153-161. [PMID: 25764816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aim of the study was to investigate the effects of chronic exposure to ionizing radiation on the cellular immunity of employees of the nuclear industry. Peripheral blood samples were studied in 195 employees of Physics and Power Engineering Institute (PPEI, Obninsk), who professionallycontacted with sources ofionizing radiation and were under individual dosimetric control. The median cumulative dose was 61.2 mSv, the average duration of work at the enterprise -27 ± 5 years. The control group consisted of 57 healthy individuals of a similar age and sex who did not have contact with sources of radiation. Indicators of the cellular immunity were determined by flow cytometry. Comparison of a cell-mediated immunity was conducted separately in the two age groups (20-40 and 41-70 years). The significant reduction inthe relative content of CD4+CD8 T-helper cells and the increase in the relative content of CD3-CD16, CD56+ NK-cells were found in both age groups of the PPEI employees in comparison with the age-matched control groups (p < 0.05). Separate analysis of the results in the low dose group (up to 50 mSv) demonstrated reducing the relative content of T-helper cells and increasing the proportion of NK-cells (as in the analysis of whole groups without taking into account the cumulative dose), as well as reducing the proportion of CD8+CD25+ activated lymphocytes in PPEI employees as compared to the age-matched control. Multiple regression analysis of the immunological parameters dependence on age and dose established a significant correlation of the relative content of CD3-CD19+ B-cells (r = -0.284, p = 2.9 x 10(-4)) and CD19+CD5+ B1-lymphocytes (r = -0.241, p = 0.002) with the dose of employees regardless of age, indicating the relationship of the changes in the B-cell component of immune system with the radiation factor.
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Osmola-Mańkowska A, Polańska A, Silny W, Żaba R, Adamski Z, Dańczak-Pazdrowska A. Topical tacrolimus vs medium-dose ultraviolet A1 phototherapy in the treatment of atopic dermatitis - a preliminary study in relation to parameters of the epidermal barrier function and high-frequency ultrasonography. Eur Rev Med Pharmacol Sci 2014; 18:3927-3934. [PMID: 25555886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Atopic dermatitis (AD) is a chronic, relapsing skin disorder, which is characterized by intense pruritus, skin dryness and concomitant epidermal barrier dysfunction. The basic therapy involves the application of anti-inflammatory topical drugs like; glucocorticosteroids and calcineurin inhibitors. Phototherapy in AD is regarded as an additional form of treatment. The latest invention, ultraviolet A1-UVA1 phototherapy (340-400 nm), was introduced to the treatment of AD by Krutmann et al in 1992. It appears that the main mode of action of UVA1 phototherapy in AD is through activation of apoptosis of T lymphocytes. Additionally, new studies show that UVA1 can also inhibit the activity of calcineurin phosphatase, similarly to calcineurin inhibitors such as cyclosporin A or tacrolimus. The aim of this study is to, for the first time, compare the efficacy of medium dose UVA1 phototherapy and tacrolimus ointment in patients with moderate-severe AD. PATIENTS AND METHODS This study involved 20 AD patients. Half of the patients were treated with UVA1 phototherapy, while another 10 participants were treated with the application of tacrolimus ointment. The severity of the disease progress was assessed on the basis of EASI score (Eczema Area Severity Index). Moreover, the clinical condition of patients was assessed using non-invasive techniques such as measurement of transepidermal water loss - TEWL and skin capacitance, as well as high-frequency ultrasonography (20 MHz). RESULTS This study described above confirmed the beneficial influence of both therapies on the course of moderate-severe AD. Tacrolimus induced a greater reduction in TEWL, while phototherapy caused the reduction of subepidermal low echogenic band-SLEB within sites affected with pathological lesions. CONCLUSIONS Both tacrolimus and phototherapy treatment seemed to significantly reduce EASI.
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Affiliation(s)
- A Osmola-Mańkowska
- Department and Clinic of Dermatology, Poznan University of Medical Sciences, Poznan, Poland.
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MacVittie TJ, Bennett AW, V Cohen M, Farese AM, Higgins A, Hankey KG. Immune cell reconstitution after exposure to potentially lethal doses of radiation in the nonhuman primate. Health Phys 2014; 106:84-96. [PMID: 24276552 DOI: 10.1097/hp.0b013e3182a2a9b2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Delayed immune reconstitution remains a major cause of morbidity associated with myelosuppression induced by cytotoxic therapy or myeloablative conditioning for stem cell transplant, as well as potentially lethal doses of total- or partial-body irradiation. Restoration of a functional immune cell repertoire requires hematopoietic stem cell reconstitution for all immune cells and effective thymopoiesis for T cell recovery. There are no medical countermeasures available to mitigate damage consequent to high-dose, potentially lethal irradiation, and there are no well characterized large animal models of prolonged immunosuppression to assess efficacy of potential countermeasures. Herein, the authors describe a model of T and B cell reconstitution following lethal doses of partial-body irradiation with 5% bone marrow sparing that includes full exposure of the thymus. Rhesus macaques (n = 31 male, 5.5-11.3 kg body weight) were exposed to midline tissue doses of 9.0-12.0 Gy using 6 MV LINAC-derived photons at a dose rate of 0.80 Gy min, sparing approximately 5% of bone marrow (tibiae, ankles, and feet). All animals received medical management and were monitored for myeloid and lymphoid suppression and recovery through 180 d post-exposure. Myeloid recovery was assessed by neutrophil and platelet-related hematological parameters. Reconstitution of B and T cell subsets was assessed by flow cytometric immunophenotyping, and recent thymic emigrants were identified by RT-PCR of T cell receptor excision circles. Mortality was recorded through 180 d post-exposure. Acute myelo-suppression was characterized by severe neutropenia and thrombocytopenia, followed by recovery 30-60 d post-exposure. Total T (CD3+) and B (CD20+) cells were reduced significantly following exposure and exhibited differential recovery patterns post-exposure. Both CD4+ and CD8+ subsets of naïve T cells and total CD4+ T cell counts remained significantly lower than baseline through 180 d post-exposure. The failure of recent thymic emigrants and naïve T cell subsets to recover to normal baseline values reflects the severe radiation effects on the recovery of marrow-derived stem and early thymic progenitor cells, their mobilization and seeding of receptive thymic niches, and slow endogenous thymic regeneration.
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Affiliation(s)
- Thomas J MacVittie
- *University of Maryland, School of Medicine, Dept. of Radiation Oncology, Baltimore, MD; †Integrated Research Facility, Frederick, MD; ‡Naval Medical Research Center, Silver Spring, MD
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Pelevina II, Aleshchenko AV, Antoshchina MM, Kudriashova OM, Nikonova MF, Riabchenko NI, Serebrianyĭ AM, Iarilin AA. [Individual variability of immunological markers, radiosensitivity and oxidative status in blood lymphocytes of Moscow residents]. Radiats Biol Radioecol 2013; 53:567-574. [PMID: 25486738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Expression of activation (CD69) and proliferation (Ki67) markers, their connection with each other, with the oxidative status (reactive oxygen species--ROS) and with radiosensitivity (determined by micronucleus test) have been studied on stimulated blood lymphocytes from Moscow inhabitants. It was shown that the content of T-lymphocytes with the expressed CD69 and the content of T-lymphocytes with the expressed Ki67 markers correlate (r = 0.571; p = 0.0004). We can suppose that expression of the CD69 marker (24 h after PHA stimulation) is needed for the cell cycle progression, but it is not enough for the high expression of Ki67 markers 48 h after stimulation (DNA synthesis phase). It was discovered that T-lymphocytes with the CD69 marker or T-lymphocytes with the Ki67 marker are connected by the negative correlation with the frequency of irradiated cell with micronucleus (MN) r = -0.487; p = 0.010; r = -0.440; p = 0.008, respectively. So we can suppose that lymphocyte radiosensitivity decreased with the increase of expression activation and proliferation markers. It was shown that radiosensitivity determined by MN test is not connected with the oxidative status determined by the reactive oxygen species content including superoxide anion radicals. It is possible to explain by the fact that the ROS concentration has been determined in non-stimulated lymphocytes, but frequencies of cells with MN - in the stimulated cells 48 h after stimulation. Using separate analysis of individual differences by the studied parameters that were determined in the same people, it was shown that individual differences are high enough in the same cases. For example, the radiosensitivity when cells were irradiated 48 h after stimulation, ROS concentration, cell content with activation and proliferation markers. In conclusion, we can say that we failed to find important correlation between the parameters studied. However, the presence of individual differences in the marker expression, the frequency of MN cells, the oxidative status in the usual inhabitants, typical donors in Moscow, is very important.
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Donetskova AD, Sharova NI, Nikonova MF, Mitin AN, Litvina MM, Komogorova VV, Iarilin AA. [Dynamics of T-Cell receptor gene rearrangement and T-lymphocytes migration from thymus during post-radiation regeneration]. Radiats Biol Radioecol 2013; 53:575-582. [PMID: 25486739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recovery and migration of T-cells from the thymus to the secondary lymphoid organs in mice after sublethal gamma irradiation were investigated by measuring T-cell receptor excision circles (TRECs). The TRECs level practically represents the cellularity of thymus, in particular it correlates with the quantity of T-cells which have rearranged TCR genes and express the receptor complex CD3-TCR. So, TRECs can be considered as one of the markers of these cells. TREC-containing cells form a subset of recent thymic emigrants in the secondary lymphoid organs. After a significant TREC decrease in the lymph nodes within the early phase (4 days) after irradiation, we registered the increase of their number during urgent organ recovery due to T-cell migration from the thymus (the maximum is on the 10th day). The secondary thymic atrophy is accompanied by a weakening migration of the T-cells containing TRECs to lymph nodes. A significant TREC increase in the spleen was registered on the 4th day after irradiation. The rest of the recovery period. (up to 60 days) is characterized by the low TREC level. Thus, determination of TREC level allows obtaining additional information about recovery and migratory processes in lymphoid organs during post-radiation regeneration.
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Pereboeva L, Westin E, Patel T, Flaniken I, Lamb L, Klingelhutz A, Goldman F. DNA damage responses and oxidative stress in dyskeratosis congenita. PLoS One 2013; 8:e76473. [PMID: 24124565 PMCID: PMC3790691 DOI: 10.1371/journal.pone.0076473] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 08/27/2013] [Indexed: 12/23/2022] Open
Abstract
Dyskeratosis congenita (DC) is an inherited multisystem disorder of premature aging, cancer predisposition, and bone marrow failure caused by selective exhaustion of highly proliferative cell pools. DC patients also have a poor tolerance to chemo/radiotherapy and bone marrow transplantation. Although critically shortened telomeres and defective telomere maintenance contribute to DC pathology, other mechanisms likely exist. We investigate the link between telomere dysfunction and oxidative and DNA damage response pathways and assess the effects of antioxidants. In vitro studies employed T lymphocytes from DC subjects with a hTERC mutation and age-matched controls. Cells were treated with cytotoxic agents, including Paclitaxel, Etoposide, or ionizing radiation. Apoptosis and reactive oxygen species (ROS) were assessed by flow cytometry, and Western blotting was used to measure expression of DNA damage response (DDR) proteins, including total p53, p53S15, and p21(WAF). N-acetyl-cysteine (NAC), an antioxidant, was used to modulate cell growth and ROS. In stimulated culture, DC lymphocytes displayed a stressed phenotype, characterized by elevated levels of ROS, DDR and apoptotic markers as well as a proliferative defect that was more pronounced after exposure to cytotoxic agents. NAC partially ameliorated the growth disadvantage of DC cells and decreased radiation-induced apoptosis and oxidative stress. These findings suggest that oxidative stress may play a role in the pathogenesis of DC and that pharmacologic intervention to correct this pro-oxidant imbalance may prove useful in the clinical setting, potentially alleviating untoward toxicities associated with current cytotoxic treatments.
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Affiliation(s)
- Larisa Pereboeva
- Department of Medicine, Division of Hematology Oncology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Erik Westin
- Department of Pediatrics, Division of Hematology Oncology, Children's Hospital of Alabama, Birmingham, Alabama, United States of America
| | - Toral Patel
- Department of Pediatrics, Division of Hematology Oncology, Children's Hospital of Alabama, Birmingham, Alabama, United States of America
| | - Ian Flaniken
- Department of Pediatrics, Division of Hematology Oncology, Children's Hospital of Alabama, Birmingham, Alabama, United States of America
| | - Lawrence Lamb
- Department of Medicine, Division of Hematology Oncology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Aloysius Klingelhutz
- Department of Microbiology, University of Iowa, Iowa City, Iowa, United States of America
| | - Frederick Goldman
- Department of Pediatrics, Division of Hematology Oncology, Children's Hospital of Alabama, Birmingham, Alabama, United States of America
- * E-mail:
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46
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Versteyhe S, Driessens N, Ghaddhab C, Tarabichi M, Hoste C, Dumont JE, Miot F, Corvilain B, Detours V. Comparative analysis of the thyrocytes and T cells: responses to H2O2 and radiation reveals an H2O2-induced antioxidant transcriptional program in thyrocytes. J Clin Endocrinol Metab 2013; 98:E1645-54. [PMID: 23666977 DOI: 10.1210/jc.2013-1266] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Radiation is an established cause of thyroid cancer, and growing evidence supports a role for hydrogen peroxide (H2O2) in spontaneous thyroid carcinogenesis. Little is known about the molecular programs activated by these agents in thyrocytes. OBJECTIVE The purpose of this study was to compare the responses of thyrocytes and T cells to H2O2 and radiation. METHODS We profiled the DNA damage and cell death induced by γ-radiation (0.1-5 Gy) and H2O2 (0.0025-0.3 mM) in primary human thyrocytes and T cells. We next prepared thyroid and T-cell primary cultures from 8 donors operated for noncancerous thyroid pathological conditions and profiled their genome-wide transcriptional response 4 hours after (1) exposure to 1-Gy radiation, (2) treatment with H2O2 and (3) no treatment. Two H2O2 concentrations were investigated, calibrated in each cell type to elicit levels of single- and double-strand breaks equivalent to 1-Gy γ-radiation. RESULTS Although thyrocytes and T cells had comparable radiation responses, 3- to 10-fold more H2O2 was needed to induce detectable DNA damage in thyrocytes. At H2O2 and radiation doses inducing double-strand breaks, cell death occurred after 24 hours in T cells but not in thyrocytes. The transcriptional responses of thyrocytes and T cells to radiation were similar, involving DNA repair and cell death genes. In addition to this transcriptional program, H2O2 also up-regulated antioxidant genes in thyrocytes, including glutathione peroxidases and heme oxygenase at the double-strand breaks-inducing concentration. In contrast, a transcriptional storm involving thousands of genes was raised in T cells. Finally, we showed that inhibiting glutathione peroxidases activity increased the DNA damaging effect of H2O2 in thyrocytes. CONCLUSION We propose that high H2O2 production in thyrocytes is matched with specific transcriptionally regulated antioxidant protection.
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Affiliation(s)
- Soetkin Versteyhe
- Universite Libre de Bruxelles-Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire, B1070 Brussels, Belgium.
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47
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Zhao H, Guo M, Sun X, Sun W, Hu H, Wei L, Ai H. Effects of recombinant human granulocyte colony-stimulating factor on central and peripheral T lymphocyte reconstitution after sublethal irradiation in mice. J Radiat Res 2013; 54:83-91. [PMID: 23001765 PMCID: PMC3534283 DOI: 10.1093/jrr/rrs082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 08/16/2012] [Accepted: 08/16/2012] [Indexed: 06/01/2023]
Abstract
Granulocyte colony-stimulating factor (G-CSF) is one of the most critical cytokines used for the treatment of acute radiation syndrome (ARS). In addition to the hematopoietic effects of G-CSF on the differentiation and proliferation of myeloid progenitor cells, G-CSF is also known to have immunomodulatory effects. The aim of the present study was to investigate whether G-CSF could accelerate central and peripheral T lymphocyte recovery after a sublethal dose of irradiation. Female BALB/c mice were subjected to 6 Gy of total body irradiation and then were treated with either 100 μg/kg G-CSF or an equal volume of PBS once daily for 14 days. Percentages of thymocyte subpopulations including CD4 - CD8 - , CD4 + CD8 + , CD4 + CD8- and CD4 - CD8+ T cells, peripheral CD3 + , CD4+ and CD8+ cells were analyzed by flow cytometry. Recent thymic emigrants (RTEs) were assessed by real-time polymerase chain reaction (PCR) using primers specific to the 257-bp T cell receptor rearrangement excision circles (sjTRECs). The proliferative capacity of splenic mononuclear cells upon exposure to ConA was measured by using the Cell Count Kit-8 (CCK-8). G-CSF treatment promoted thymocyte regeneration, accelerated the recovery of CD4 + CD8+ cells and increased the frequency of thymocyte sjTRECs. These effects were more prominent at early time points (Day 28) after irradiation. G-CSF also increased the rate of recovery of peripheral CD3 + , CD4+ and CD8+ cells and shortened the period of severe lymphopenia following irradiation. G-CSF also increased the splenic mononuclear cell mitotic responsiveness to ConA more than control-treated cells. Our results show that G-CSF accelerates T cell recovery through both thymic-dependent and thymic-independent pathways, which could be used to increase the rate of immune reconstitution after sublethal irradiation.
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Affiliation(s)
- Hongxia Zhao
- Department of Hematology, Affiliated Hospital to the Academy of Military Medicine Science, 8th, East Street, FengTai District, Beijing, China
| | - Mei Guo
- Department of Hematology, Affiliated Hospital to the Academy of Military Medicine Science, 8th, East Street, FengTai District, Beijing, China
| | - Xuedong Sun
- Department of Hematology, Affiliated Hospital to the Academy of Military Medicine Science, 8th, East Street, FengTai District, Beijing, China
| | - Wanjun Sun
- Department of Hematology, the Second Artillery General Hospital, 16th, Xinjiekouwaidajie Road, XiCheng District, Beijing, China
| | - Hailan Hu
- Department of Hematology, the Second Artillery General Hospital, 16th, Xinjiekouwaidajie Road, XiCheng District, Beijing, China
| | - Li Wei
- Third Department of Internal Medicine, General Hospital of Tibet Military Region, Lhasa, China
| | - Huisheng Ai
- Department of Hematology, Affiliated Hospital to the Academy of Military Medicine Science, 8th, East Street, FengTai District, Beijing, China
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48
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Mehrotra S, Pecaut MJ, Gridley DS. Effects of minocycline on hematopoietic recovery after whole-body irradiation. In Vivo 2013; 27:11-28. [PMID: 23239848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND/AIM We previously found that minocycline enhanced the levels of several leukocyte populations and had the capacity to induce secretion of certain cytokines early after irradiation. In the current study we further determined the drug's effect on hematopoietic recovery. MATERIALS AND METHODS Minocycline was injected intraperitoneally into C57BL/6 mice for 5 days, beginning immediately before exposure to (60)Co γ-rays (1, 2, 3 Gy). Thirty-two days post-irradiation, spleen and blood were collected to quantify cell populations, cytokines in splenic T-cell supernatants after anti-CD3 activation, and chromosomic status based on spectral karyotyping. RESULTS While radiation resulted in significantly lower B-cell counts at 3 Gy in both blood and spleen, minocycline treatment increased the counts and/or percentages of splenic B-cells at 2 Gy and 3 Gy. In spleen supernatants, the drug-alone increased the levels of cytokines, including interleukin-1α (IL-1α) and IL-6 that are radioprotective, as well as granulocyte-macrophage colony-stimulating factor (GM-CSF) and G-CSF that accelerate neutrophil recovery. In addition, minocycline suppressed the production of interferon-γ that can prevent hematopoiesis. Dose-dependent radiation-induced chromosomic abnormalities were present in splenic leukocytes. CONCLUSION The data indicate that minocycline exerts a relatively long-term effect on parameters that influence hematopoietic recovery. Further testing of this drug as a countermeasure for acute radiation syndrome, is necessary to determine its full potential.
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Affiliation(s)
- Shalini Mehrotra
- Department of Basic Sciences, Divisions of Biochemistry and Microbiology, Loma Linda University and Medical Center, Loma Linda, CA 92354, USA.
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Suzuki Y, Mimura K, Yoshimoto Y, Watanabe M, Ohkubo Y, Izawa S, Murata K, Fujii H, Nakano T, Kono K. Immunogenic tumor cell death induced by chemoradiotherapy in patients with esophageal squamous cell carcinoma. Cancer Res 2012; 72:3967-76. [PMID: 22700877 DOI: 10.1158/0008-5472.can-12-0851] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Although it has been shown that chemoradiotherapy may induce immunogenic cell death, which could trigger T-cell immunity mediated by high-mobility group box 1 protein (HMGB1) and calreticulin, there is still limited information to support this theory directly in a clinical setting. In the present study, we evaluated antigen-specific T-cell responses against six cancer-testis antigens in peripheral blood lymphocytes from patients with esophageal squamous cell carcinoma (ESCC) receiving chemoradiation. Expression of HMGB1 and calreticulin within tumor microenvironment was also analyzed in resected samples with and without chemoradiotherapy in relation to patients survival. Tumor antigen-specific T-cell responses were confirmed in six (38%) of 16 patients with ESCC after chemoradiotherapy coexisting with elevated serum HMGB1. In addition, HMGB1 within tumor microenvironment was significantly upregulated in patients with ESCC with preoperative chemoradiotherapy, but not in those without chemoradiotherapy, and the degree of HMGB1 positively correlated with patient survival (n=88). Both irradiation and chemotherapeutic drugs induced upregulation of HMGB1 and calreticulin in nine ESCC cell lines. Furthermore, HMGB1 was able to induce maturation of dendritic cells. Together, our findings indicate that chemoradiation induces tumor antigen-specific T-cell responses, and HMGB1 production is related to clinical outcome after chemoradiation.
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Affiliation(s)
- Yoshiyuki Suzuki
- Department of Surgery, National University of Singapore, Cancer Science Institute of Singapore, Singapore
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Choi DH, Lim JH, Lee KH, Kim MY, Kim HY, Shin CY, Han SH, Lee J. Effect of 710-nm visible light irradiation on neuroprotection and immune function after stroke. Neuroimmunomodulation 2012; 19:267-76. [PMID: 22472725 DOI: 10.1159/000335547] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 11/30/2011] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The phototherapeutic effects of low level infrared laser irradiation (808 nm) on brain neuronal cell protection after stroke have been presented recently. We previously reported that 710-nm wavelength visible light (VIS) increases total lymphocyte counts in vivo, especially CD4(+) T lymphocytes. In this study, we investigated the effects of 710-nm VIS irradiation on neuronal protection and recovery correlating with cellular immunity in stroke rats. METHODS Rats were subjected to 90-min middle cerebral artery occlusion (MCAO) followed by reperfusion and were divided into two groups: irradiation and no irradiation. The irradiation group had been exposed to 710-nm VIS for 3 weeks after MCAO establishment or sham operation. The helper T cell (CD4(+)) count in the whole blood and infarct volume were measured. Messenger RNA expression levels of IL-4 and IL-10 in peripheral blood mononuclear cells were measured, a histologic study including microglia activation and regulatory T (Treg) cell markers, neurological severity scoring and a parallel bar walking test were all performed. RESULTS CD4(+) cell count was reduced after MCAO but was significantly increased by 710-nm VIS irradiation. The infarct sizes were decreased in the MCAO + irradiation group compared with the MCAO control group. IL-10 mRNA expression and the immunoreactivity of Treg cells were increased in the MCAO + irradiation group compared with the MCAO control group. Increased microglia activation after MCAO was reduced by 710-nm VIS irradiation. The irradiation group also showed improved neurological severity score levels and step fault scores after MCAO. CONCLUSIONS Our data suggest that 710-nm VIS irradiation may activate cellular immunity, reduce brain infarction and ultimately induce functional recovery in a stroke animal model.
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Affiliation(s)
- Dong-Hee Choi
- Center for Neuroscience Research, SMART Institute of Advanced Biomedical Science, Konkuk University School of Medicine, Seoul, Republic of Korea
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