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Naujoks W, Quandt D, Hauffe A, Kielstein H, Bähr I, Spielmann J. Characterization of Surface Receptor Expression and Cytotoxicity of Human NK Cells and NK Cell Subsets in Overweight and Obese Humans. Front Immunol 2020; 11:573200. [PMID: 33101297 PMCID: PMC7546782 DOI: 10.3389/fimmu.2020.573200] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022] Open
Abstract
Obesity is associated with an increased risk for several cancer types and an altered phenotype and functionality of natural killer (NK) cells. This study aimed to investigate the association of overweight and obesity with NK cell functions and receptor expression profiles in humans. Therefore, peripheral blood mononuclear cells were isolated from normal weight, overweight, and obese healthy blood donors. In depth analysis of immune cell populations and 23 different surface markers, including NK cell receptors, NK-cell-related markers as well as functional intracellular markers on total NK cells and NK subgroups were performed by multicolor flow cytometry. The data revealed a decreased expression of the activating NK cell receptors KIR2DS4 and NKp46 as well as an increased expression of the inhibitory NK cell receptors NKG2A and Siglec-7 in overweight and obese compared to normal weight individuals. Additionally, the expression of the adhesion molecule CD62L and the maturation and differentiation marker CD27 was downregulated in NK cells of overweight and obese subjects. Furthermore, the cytotoxicity of NK cells against colorectal cancer cells was decreased in overweight and obese subjects. Investigations on underlying killing mechanisms demonstrated a reduced TRAIL expression on NK cells of obese subjects suggesting an impaired death receptor pathway in obesity. The present study gives new insights into an impaired functionality and phenotype of NK cells and NK cell subsets in overweight and obesity. These phenotypic alterations and dysfunction of NK cells might be an explanation for the increased cancer risk in obesity.
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Affiliation(s)
- Wiebke Naujoks
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Dagmar Quandt
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Anja Hauffe
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Heike Kielstein
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ina Bähr
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Julia Spielmann
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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Schultze E, Collares T, Lucas CG, Seixas FK. Synergistic and additive effects of ATRA in combination with different anti-tumor compounds. Chem Biol Interact 2018; 285:69-75. [DOI: 10.1016/j.cbi.2018.02.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 01/26/2018] [Accepted: 02/15/2018] [Indexed: 12/12/2022]
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Perišić Nanut M, Sabotič J, Švajger U, Jewett A, Kos J. Cystatin F Affects Natural Killer Cell Cytotoxicity. Front Immunol 2017; 8:1459. [PMID: 29180998 PMCID: PMC5693851 DOI: 10.3389/fimmu.2017.01459] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/18/2017] [Indexed: 01/21/2023] Open
Abstract
Cystatin F is a cysteine peptidase inhibitor which, unlike other cystatin family members, is targeted to endosomal/lysosomal compartments. It is synthesized as an inactive disulfide-linked dimer which is then converted to an active monomer by proteolytic cleavage of 15 N-terminal residues. Cystatin F has been suggested to regulate the cytotoxicity of natural killer (NK) cells by inhibiting the major granzyme convertases, cathepsins C and H. To test this hypothesis, we prepared variants of cystatin F and analyzed their uptake, subcellular trafficking, and peptidase inhibition, as well as their impact on the cytotoxicity of NK-92 cells and primary NK cells. The N-glycosylation pattern is responsible for the secretion, uptake, and subcellular sorting of cystatin F in HeLa and Hek293 cells, whereas the legumain binding site had no effect on these processes. Active, N-terminally truncated, monomeric cystatin F can also be internalized by recipient cells and targeted to endo/lysosomes, affecting also cells lacking the activating peptidase. Cystatin F mutants capable of cell internalization and trafficking through the endo/lysosomal pathway significantly decreased cathepsin C and H activities, both in situ, following transfection and in trans, using conditioned media. Further, incubation of IL-2 stimulated NK-92 and primary NK cells with full-length and N-terminally truncated cystatin F mutants led to suppression of their granule-mediated cytotoxicity. This effect was most significant with the N-terminally truncated mutants. These results suggest that cystatin F can be an important mediator within tumor microenvironment affecting the cytotoxicity of NK cells and consequently antitumor immune response.
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Affiliation(s)
| | - Jerica Sabotič
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
| | | | - Anahid Jewett
- The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, Division of Oral Biology and Medicine, UCLA School of Dentistry, University of California-Los Angeles, Los Angeles, CA, United States
| | - Janko Kos
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia.,Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
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Delort L, Rossary A, Farges MC, Vasson MP, Caldefie-Chézet F. Leptin, adipocytes and breast cancer: Focus on inflammation and anti-tumor immunity. Life Sci 2015; 140:37-48. [PMID: 25957709 DOI: 10.1016/j.lfs.2015.04.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/30/2015] [Accepted: 04/15/2015] [Indexed: 01/06/2023]
Abstract
More than one million new cases of breast cancer are diagnosed worldwide each year and more than 400,000 deaths are caused by the disease. The origin of this pathology is multifactorial and involved genetic, hormonal, environmental and nutritional factors including obesity in postmenopausal women. The role played by the adipose tissue and their secretions, ie adipokines, is beginning to be recognized. Plasma adipokine levels, which are modulated during obesity, could have “remote” effects on mammary carcinogenesis. Breast cancer cells are surrounded and locally influenced by an adipocyte microenvironment, which is probably more extensive in obese people. Hence, leptin appears to be strongly involved in mammary carcinogenesis and may contribute to the local pro-inflammatory mechanisms, especially in obese patients, who have increased metastatic potential and greater risk of mortality. This review presents the multifaceted role of leptin in breast cancer development and the different molecular pathways involved such as inflammation, oxidative stress and antitumor immunity.
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Affiliation(s)
- Laetitia Delort
- Clermont Université, Université d'Auvergne, UFR Pharmacie, 28 place Henri Dunant, 63000 Clermont-Ferrand, France; INRA, UMR 1019, ECREIN, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Adrien Rossary
- Clermont Université, Université d'Auvergne, UFR Pharmacie, 28 place Henri Dunant, 63000 Clermont-Ferrand, France; INRA, UMR 1019, ECREIN, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Marie-Chantal Farges
- Clermont Université, Université d'Auvergne, UFR Pharmacie, 28 place Henri Dunant, 63000 Clermont-Ferrand, France; INRA, UMR 1019, ECREIN, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Marie-Paule Vasson
- Clermont Université, Université d'Auvergne, UFR Pharmacie, 28 place Henri Dunant, 63000 Clermont-Ferrand, France; INRA, UMR 1019, ECREIN, CRNH Auvergne, 63000 Clermont-Ferrand, France; Centre Jean-Perrin, CHU Gabriel-Montpied, Unité de Nutrition, 63003 Clermont-Ferrand, France
| | - Florence Caldefie-Chézet
- Clermont Université, Université d'Auvergne, UFR Pharmacie, 28 place Henri Dunant, 63000 Clermont-Ferrand, France; INRA, UMR 1019, ECREIN, CRNH Auvergne, 63000 Clermont-Ferrand, France.
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Wang XY, Crowston JG, White AJR, Zoellner H, Healey PR. Interferon-alpha and interferon-gamma modulate Fas-mediated apoptosis in mitomycin-C-resistant human Tenon's fibroblasts. Clin Exp Ophthalmol 2013; 42:529-38. [PMID: 24224571 DOI: 10.1111/ceo.12268] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 10/28/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND The aim of the study was to investigate, using a native mitomycin-C-resistant human Tenon's fibroblast cell line, the possibility that interferon-alpha and gamma could be used with Fas agonists as an alternative anti-fibrotic strategy to mitomycin-C in trabeculectomy. METHODS A clinically resistant and in vitro verified mitomycin-C-resistant human Tenon's fibroblast cell line was pretreated with interferon-alpha and interferon-gamma for 48 h before stimulation with an agonistic Fas antibody (CH11) for 2 days to induce cell death. Cell death assays were undertaken. Changes in apoptosis-related proteins were determined by flow cytometry and Western blot. RESULTS Pretreatment with interferon-alpha or interferon-gamma for 48 h increased Fas, Fas-associated protein with death domain and caspase-8 expression. Protein expression was further increased by combined exposure to interferon-alpha and gamma. Pretreatment with cytokines had no effect on Fas-L and Bcl-2. Interferon-alpha alone did not change the rate of induced cell death. A combination of interferon-alpha and gamma synergistically increased the sensitivity of mitomycin-C-resistant human Tenon's fibroblast cell line to induced cell death. An antagonistic anti-Fas antibody (ZB4) completely blocked induced cell death. Broad caspase inhibitors specific for caspases-8 and -3 reduced induced deaths in interferon pretreated mitomycin-C-resistant human Tenon's fibroblast cell line in a dose-dependent manner. CONCLUSIONS Interferon-alpha and interferon-gamma render mitomycin-C-resistant human Tenon's fibroblast cell line sensitive to Fas-mediated apoptosis. The mechanism involves increased death-inducing signalling complex formation by upregulation of Fas, Fas-associated protein with death domain and caspase-8 expression.
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Affiliation(s)
- Xiao Yang Wang
- Centre for Vision Research, Westmead Millennium Institute, The University of Sydney, Sydney, New South Wales, Australia
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Lamas B, Goncalves-Mendes N, Nachat-Kappes R, Rossary A, Caldefie-Chezet F, Vasson MP, Farges MC. Leptin modulates dose-dependently the metabolic and cytolytic activities of NK-92 cells. J Cell Physiol 2013; 228:1202-9. [DOI: 10.1002/jcp.24273] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 10/19/2012] [Indexed: 11/07/2022]
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Ma R, Hopp EA, Decker NM, Loucks A, Johnson JR, Moskal J, Basu M, Banerjee S, Basu S. Regulation of Glycosyltransferase Genes in Apoptotic Breast Cancer Cells Induced by l-PPMP and Cisplatin. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 705:621-42. [DOI: 10.1007/978-1-4419-7877-6_33] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Das A, Banik NL, Ray SK. Molecular mechanisms of the combination of retinoid and interferon-gamma for inducing differentiation and increasing apoptosis in human glioblastoma T98G and U87MG cells. Neurochem Res 2008; 34:87-101. [PMID: 18368485 DOI: 10.1007/s11064-008-9669-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 03/12/2008] [Indexed: 11/26/2022]
Abstract
Glioblastoma is the deadliest brain tumor that remains incurable. We examined efficacy of combination of retinoid and interferon-gamma (IFN-gamma) in human glioblastoma T98G and U87MG cells. We conjectured that retinoid could induce differentiation with down regulation of telomerase activity to increase sensitivity to IFN-gamma for apoptosis in glioblastoma cells. Indeed, treatment of cells with 1 muM all-trans retinoic acid (ATRA) or 1 muM 13-cis retinoic acid (13-CRA) for 7 days induced astrocytic differentiation with upregulation of glial fibrillary acidic protein (GFAP) and down regulation of telomerase activity. Wright staining and ApopTag assay showed, respectively, morphological and biochemical features of apoptosis in glioblastoma cells following exposure to 200 units/ml IFN-gamma for 48 h. Induction of differentiation was associated with decreases in levels of nuclear factor kappa B (NFkappaB), inducible nitric oxide synthase (iNOS), and production of nitric oxide (NO) so as to increase sensitivity to IFN-gamma for apoptosis. Notably, IFN-gamma induced signal transducer and activator of transcription-1 (STAT-1) to bind to gamma-activated sequence (GAS) of the target gene. Also, IFN-gamma activated caspase-8 and cleaved Bid to truncated Bid (tBid) for translocation to mitochondria. Fura-2 assay showed increases in intracellular free [Ca2+] and activation of calpain in apoptotic cells. Besides, increases in Bax:Bcl-2 ratio and mitochondrial release of cytochrome c and Smac into the cytosol activated caspase-9 and caspase-3 for apoptosis. Taken together, our results showed that retinoid induced astrocytic differentiation with down regulation of telomerase activity and enhanced sensitivity to IFN-gamma for increasing apoptosis in human glioblastoma cells.
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Affiliation(s)
- Arabinda Das
- Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA
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Lobanova YS, Scherbakov AM, Shatskaya VA, Krasil'nikov MA. Mechanism of estrogen-induced apoptosis in breast cancer cells: role of the NF-kappaB signaling pathway. BIOCHEMISTRY (MOSCOW) 2007; 72:320-7. [PMID: 17447886 DOI: 10.1134/s0006297907030108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The ability of sex steroid hormones to up-regulate the apoptotic signaling proteins is well documented; however, the apoptotic potential of sex hormones is not remarkable and fully compensated by their growth stimulatory action to target cells. In the present study using the long-term cultivation of estrogen-dependent MCF-7 breast cancer cells in steroid-free medium, we have established a cell subline, designed as MCF-7/LS, which was characterized by the resistance to growth stimulatory estradiol action and hypersensitivity to estrogen-induced apoptosis. We have demonstrated that estrogen treatment of the cells does not influence on the level of TNF-R1 or Fas, but dramatically decreases the transcriptional activity of NF-kappaB. Importantly, the MCF-7/LS cells, which are insensitive to growth stimulatory estrogen action, retain the ability to decrease in the NF-kappaB activity in response to estrogen stimulus. Furthermore, the significant increase in the basal (in the absence of ligand) estrogen receptor (ER)-dependent transcriptional activity in the MCF-7/LS cells was revealed and reciprocal transcriptional antagonism between ER and NF-kappaB was demonstrated. Finally, we proved the possible involvement of phosphatidylinositol-3 kinase (PI3K) in the ligand-independent ER activation. In general, the results presented suggest that long-term growth of MCF-7 breast cancer cells in steroid-free medium is accompanied with the increase in the basal ER-dependent transcriptional activity as well as the maintenance of the negative regulatory loop ER-NF-kappaB. The latter may be considered as one of the factors resulting in a disbalance between pro- and anti-apoptotic pathways and enhancement in estrogen apoptotic action in the cells.
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Affiliation(s)
- Yu S Lobanova
- Institute of Carcinogenesis, Blokhin Cancer Research Center, Russian Academy of Medical Sciences, Moscow, Russia
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Abstract
In recent decades many advances have occurred in the understanding of the role of cytokines in breast cancer. New signalling pathways of interleukin (IL)-1 family, IL-6, IL-11, IL-18, interferons (IFNs) and interferon regulatory factors 1 (IRF-1) and 2 (IRF-2) have been found within tumour microenvironments and in metastatic sites. Some cytokines (IL-1, IL-6, IL-11, TGFbeta) stimulate while others (IL-12, IL-18, IFNs) inhibit breast cancer proliferation and/or invasion. Similarly, high circulating levels of some cytokines seem to be favourable (soluble IL-2R) while others are unfavourable (IL-1beta, IL-6, IL-8, IL-10, IL-18, gp130) prognostic indicators. So far IL-2, IFNalpha, IFNbeta and occasionally IFNgamma, IL-6, IL-12 have been the cytokines used for anti tumour treatment of advanced breast cancer either to induce or increase hormone sensitivity and/or to stimulate cellular immunity. Disappointing results occurred in most trials; however, two long-term pilot studies suggest that IL-2 and IFNbeta, when used appropriately can have a positive effect on clinical benefit and overall survival of patients with minimal residual disease after chemotherapy or with disseminated disease controlled by conventional endocrine therapy.
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Affiliation(s)
- A Nicolini
- Department of Internal Medicine, University of Pisa, Via Roma 67, 56126 Pisa, Italy.
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Yu J, Ren X, Cao S, Zhang W, Hao X. Th1 Polarization and Apoptosis-Inducing Activity of CD4+T -Cells in Cytokine-Induced Killers Might Favor the Antitumor Cytotoxicity of Cytokine-Induced KillersIn Vivo. Cancer Biother Radiopharm 2006; 21:276-84. [PMID: 16918305 DOI: 10.1089/cbr.2006.21.276] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The cytokines induced killers (CIKs) treatment is an emerging adoptive immunotherapy with greater antitumor activity than lymphocyte-activated killers (LAKs). Our previous study suggested that CD4+ T-cells in CIKs (CD4+ CIKs) might contribute to the CIK-mediated therapy in vivo. In this experiment, we studied the mechanisms that might be involved. METHODS Fresh CD4+ CIKs were purified and proportions of Th1- and Th2-type cells were determined by intracellular cytokine staining. Cytokine secretion and mRNA synthesis were measured by enzyme-linked immunosorbent assay (ELISA) and real-time quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), respectively. Direct cytolysis and apoptosis-inducing activity were examined by the lactate dehydrogenase (LDH) method and Annexin-V staining, respectively. RESULTS The Th1 polarization in CD4+ CIKs was identified, characterized with the enhanced frequency of Th1 subset, and a dramatic increase of the levels of interleukin-2 (IL-2) and interferon gamma (IFN-gamma) in the culture supernatant. The elevation in synthesis of Th1-type cytokines could be maintained without any exogenous cytokine supplement, as implied by the results from quantitative RT-PCR. Although no tumor lysis occurred, an early stage of apoptosis was detected in Raji cocultured with CD4+ CIKs after 4 hours of incubation. This apoptosis-inducing activity of CD4+ CIKs elevated along with the incubation time and depended on the cell contact through the Fas/FasL pathway. CONCLUSIONS CD4+ CIK is a subset that might favor the antitumor cytotoxicity of CIKs in vivo by producing an advantageous Th1-dominance microenvironment and inducing tumor apoptosis though the Fas/FasL pathway.
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Affiliation(s)
- Jinpu Yu
- Department of Immunology, Tianjin Cancer Institute and Hospital of Tianjin Medical University, Tianjin, China
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