151
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Feng X, Yu W, Cao L, Meng F, Cong M. A novel chrysin thiazole derivative polarizes macrophages to an M1 phenotype via targeting TLR4. Int Immunopharmacol 2020; 88:106986. [PMID: 33182070 DOI: 10.1016/j.intimp.2020.106986] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022]
Abstract
Tumor-associated macrophages (TAMs) are an important cause of tumorigenesis and tumor development. M2 macrophages can promote tumor growth while M1 macrophages kill tumor cells, therefore, polarizing macrophages to achieve a functional M1 phenotype could effectively play its anti-tumor role. In the current study, we synthesized a novel chrysin derivative which is termed as ChR-TD. And we found ChR-TD might be a ligand of TLR4 that polarized the TAMs towards M1 phenotype and played its anti-tumor role. Further study indicated that ChR-TD reprogrammed the macrophages into an M1 phenotype via TLR4 activation. Moreover, ChR-TD activated TLR4/NF-κB signaling pathway and promoted the NF-κB/p65 translocated into the nuclear, leading to the activation of NF-κB and proinflammatory cytokines release. In addition, type I interferon signaling was also activated by ChR-TD, leading to the expressions of IFN-α and IFN-β and its targeted genes NOS2, MCP-1 and IP-10 were significantly increased in macrophages. Importantly, these effects were disturbed in TLR4-/- macrophages, which are constructed by using CRISPR/Cas9 system. And the molecule docking simulation further indicated that ChR-TD could bind to TLR4 and might be a ligand of TLR4. Hence, these findings suggested that ChR-TD might be a ligand of TLR4 and can be used as a potential lead compound for tumors treatment.
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Affiliation(s)
- Xiujing Feng
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China.
| | - Wen Yu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210046, China
| | - Lingsen Cao
- Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Fanda Meng
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
| | - Mulin Cong
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
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152
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Adams SF, Grimm AJ, Chiang CLL, Mookerjee A, Flies D, Jean S, McCann GA, Michaux J, Pak H, Huber F, Neal C, Dangaj D, Bassani-Sternberg M, Rusakiewicz S, Facciabene A, Coukos G, Gimotty PA, Kandalaft LE. Rapid tumor vaccine using Toll-like receptor-activated ovarian cancer ascites monocytes. J Immunother Cancer 2020; 8:jitc-2020-000875. [PMID: 32817208 PMCID: PMC7430560 DOI: 10.1136/jitc-2020-000875] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Background Novel therapeutic strategies in ovarian cancer (OC) are needed as the survival rate remains dismally low. Although dendritic cell-based cancer vaccines are effective in eliciting therapeutic responses, their complex and costly manufacturing process hampers their full clinical utility outside specialized clinics. Here, we describe a novel approach of generating a rapid and effective cancer vaccine using ascites-derived monocytes for treating OC. Methods Using the ID8 mouse ovarian tumor model and OC patient samples, we isolated ascites monocytes and evaluated them with flow cytometry, Luminex cytokine and chemokine array analysis, ex vivo cocultures with T cells, in vivo tumor challenge and T cell transfer experiments, RNA-sequencing and mass spectrometry. Results We demonstrated the feasibility of isolating ascites monocytes and restoring their ability to function as bona fide antigen-presenting cells (APCs) with Toll-like receptor (TLR) 4 lipopolysaccharide and TLR9 CpG-oligonucleotides, and a blocking antibody to interleukin-10 receptor (IL-10R Ab) in the ID8 model. The ascites monocytes were laden with tumor antigens at a steady state in vivo. After a short 48 hours activation, they upregulated maturation markers (CD80, CD86 and MHC class I) and demonstrated strong ex vivo T cell stimulatory potential and effectively suppressed tumor and malignant ascites in vivo. They also induced protective long-term T cell memory responses. To evaluate the translational potential of this approach, we isolated ascites monocytes from stage III/IV chemotherapy-naïve OC patients. Similarly, the human ascites monocytes presented tumor-associated antigens (TAAs), including MUC1, ERBB2, mesothelin, MAGE, PRAME, GPC3, PMEL and TP53 at a steady state. After a 48-hour treatment with TLR4 and IL-10R Ab, they efficiently stimulated oligoclonal tumor-associated lymphocytes (TALs) with strong reactivity against TAAs. Importantly, the activated ascites monocytes retained their ability to activate TALs in the presence of ascitic fluid. Conclusions Ascites monocytes are naturally loaded with tumor antigen and can perform as potent APCs following short ex vivo activation. This novel ascites APC vaccine can be rapidly prepared in 48 hours with a straightforward and affordable manufacturing process, and would be an attractive therapeutic vaccine for OC.
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Affiliation(s)
- Sarah F Adams
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Gynecologic Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, New Mexico, USA
| | - Alizée J Grimm
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Cheryl L-L Chiang
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Ananda Mookerjee
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dallas Flies
- Division of Gynecologic Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, New Mexico, USA
| | - Stephanie Jean
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Georgia A McCann
- Division of Gynecologic Oncology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Justine Michaux
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - HuiSong Pak
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Florian Huber
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Christopher Neal
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland
| | - Denarda Dangaj
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Michal Bassani-Sternberg
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Sylvie Rusakiewicz
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Andrea Facciabene
- Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - George Coukos
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, Lausanne, Switzerland
| | - Phyllis A Gimotty
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lana E Kandalaft
- Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland .,Ludwig Institute for Cancer Research, Lausanne, Switzerland
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153
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Choe SH, Choi EY, Hyeon JY, Keum BR, Choi IS, Kim SJ. Effect of nifedipine, a calcium channel blocker, on the generation of nitric oxide and interleukin-1β by murine macrophages activated by lipopolysaccharide from Prevotella intermedia. Naunyn Schmiedebergs Arch Pharmacol 2020; 394:59-71. [PMID: 32780228 DOI: 10.1007/s00210-020-01958-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022]
Abstract
Nifedipine, a calcium channel blocker, has been reported to possess anti-inflammatory and immunosuppressive effects. The current study was undertaken to explore the influence of nifedipine on the generation of proinflammatory mediators by murine macrophages activated by lipopolysaccharide (LPS) prepared from Prevotella intermedia, a putative periodontal pathogen, and associated mechanisms of action as well. LPS was purified by employing phenol-water extraction protocol. Culture supernatants were analyzed for nitric oxide (NO) and interleukin (IL)-1β. Real-time PCR and immunoblotting were conducted to quantify mRNA and protein expression, respectively. NF-κB-dependent secreted embryonic alkaline phosphatase (SEAP) levels were estimated by reporter assay. Nifedipine markedly suppressed the generation of iNOS-derived NO and IL-1β together with their mRNA expressions in murine macrophages activated by P. intermedia LPS. LPS-stimulated cells exposed to nifedipine notably increased the mRNA levels of Arg-1, Ym-1, FIZZ1, and TGF-β, which are typical markers for M2 macrophage polarization. Nifedipine induced HO-1 at both gene and protein levels in cells challenged with P. intermedia LPS, and the nifedipine-mediated inhibition of NO generation was significantly abrogated by adding SnPP, an HO-1 inhibitor. Nifedipine inhibited LPS-evoked generation of NO and IL-1β in a PPAR-γ-independent manner. In addition, NF-κB activation as well as phosphorylation of STAT1/3 induced by P. intermedia LPS was suppressed by nifedipine. Nifedipine is an inhibitor of P. intermedia LPS-evoked production of NO and IL-1β in murine macrophages and encourages macrophage polarization toward the M2 phenotype. Nifedipine possibly has potential to be used for host modulation of periodontal disease and is worth being further researched.
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Affiliation(s)
- So-Hui Choe
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Eun-Young Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Jin-Yi Hyeon
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Bo Ram Keum
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - In Soon Choi
- Department of Biological Science, College of Medical and Life Sciences, Silla University, 140 Baegyang-daero, 700beon-gil, Sasang-gu, Busan, 617-736, Korea
| | - Sung-Jo Kim
- Department of Periodontology, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-870, Korea. .,Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Korea. .,Dental and Life Science Institute, Pusan National University, Yangsan, Gyeongsangnam-do, Korea.
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154
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Yang Y, Yang Y, Yang J, Zhao X, Wei X. Tumor Microenvironment in Ovarian Cancer: Function and Therapeutic Strategy. Front Cell Dev Biol 2020; 8:758. [PMID: 32850861 PMCID: PMC7431690 DOI: 10.3389/fcell.2020.00758] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/20/2020] [Indexed: 02/05/2023] Open
Abstract
Ovarian cancer is one of the leading causes of death in patients with gynecological malignancy. Despite optimal cytoreductive surgery and platinum-based chemotherapy, ovarian cancer disseminates and relapses frequently, with poor prognosis. Hence, it is urgent to find new targeted therapies for ovarian cancer. Recently, the tumor microenvironment has been reported to play a vital role in the tumorigenesis of ovarian cancer, especially with discoveries from genome-, transcriptome- and proteome-wide studies; thus tumor microenvironment may present potential therapeutic target for ovarian cancer. Here, we review the interactions between the tumor microenvironment and ovarian cancer and various therapies targeting the tumor environment.
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Affiliation(s)
- Yanfei Yang
- Department of Gynecology and Obstetrics, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, China
| | - Yang Yang
- Department of Gynecology and Obstetrics, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, China
| | - Jing Yang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xia Zhao
- Department of Gynecology and Obstetrics, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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155
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Liu SX, Gustafson HH, Jackson DL, Pun SH, Trapnell C. Trajectory analysis quantifies transcriptional plasticity during macrophage polarization. Sci Rep 2020; 10:12273. [PMID: 32703960 PMCID: PMC7378057 DOI: 10.1038/s41598-020-68766-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/04/2020] [Indexed: 11/30/2022] Open
Abstract
In recent years, macrophages have been shown to be tremendously plastic in both in vitro and in vivo settings; however, it remains unclear whether macrophages retain any persistent memory of past polarization states which may then impact their future repolarization to new states. Here, we perform deep transcriptomic profiling at high temporal resolution as macrophages are polarized with cytokines that drive them into "M1" and "M2" molecular states. We find through trajectory analysis of their global transcriptomic profiles that macrophages which are first polarized to M1 or M2 and then subsequently repolarized demonstrate little to no memory of their polarization history. We observe complete repolarization both from M1 to M2 and vice versa, and we find that macrophage transcriptional phenotypes are defined by the current cell microenvironment, rather than an amalgamation of past and present states.
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Affiliation(s)
- Serena X Liu
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Heather H Gustafson
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, 98101, USA
| | - Dana L Jackson
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Suzie H Pun
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA.
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156
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High-Dimensional Single-Cell Quantitative Profiling of Skeletal Muscle Cell Population Dynamics during Regeneration. Cells 2020; 9:cells9071723. [PMID: 32708412 PMCID: PMC7407527 DOI: 10.3390/cells9071723] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/03/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022] Open
Abstract
The interstitial space surrounding the skeletal muscle fibers is populated by a variety of mononuclear cell types. Upon acute or chronic insult, these cell populations become activated and initiate finely-orchestrated crosstalk that promotes myofiber repair and regeneration. Mass cytometry is a powerful and highly multiplexed technique for profiling single-cells. Herein, it was used to dissect the dynamics of cell populations in the skeletal muscle in physiological and pathological conditions. Here, we characterized an antibody panel that could be used to identify most of the cell populations in the muscle interstitial space. By exploiting the mass cytometry resolution, we provided a comprehensive picture of the dynamics of the major cell populations that sensed and responded to acute damage in wild type mice and in a mouse model of Duchenne muscular dystrophy. In addition, we revealed the intrinsic heterogeneity of many of these cell populations.
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157
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Cui L, Yang G, Ye J, Yao Y, Lu G, Chen J, Fang L, Lu S, Zhou J. Dioscin elicits anti-tumour immunity by inhibiting macrophage M2 polarization via JNK and STAT3 pathways in lung cancer. J Cell Mol Med 2020; 24:9217-9230. [PMID: 32618105 PMCID: PMC7417694 DOI: 10.1111/jcmm.15563] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 06/01/2020] [Accepted: 06/09/2020] [Indexed: 12/17/2022] Open
Abstract
Tumour‐associated macrophage (TAM) is an important component in tumour microenvironment. Generally, TAM exhibits the function of M2‐like macrophage, which was closely related to angiogenesis and tumour progression. Dioscin, a natural steroidal saponin, has shown its powerful anti‐tumour activity recently. However, the mechanism of dioscin involved in immune regulation is still obscure. Here, we observed dioscin induced macrophage M2‐to‐M1 phenotype transition in vitro and inhibited IL‐10 secretion. Meanwhile, the phagocytosis of macrophages was enhanced. In subcutaneous lung tumour models, dioscin inhibited the augmentation of M2 macrophage populations. Furthermore, dioscin down‐regulated STAT3 and JNK signalling pathways in macrophages in vitro. In BMDMs, activating JNK and inhibiting STAT3 induce macrophages to M1 polarization while inhibiting JNK and activating STAT3 to M2 polarization. Additionally, condition mediums from dioscin‐pre‐treated macrophages inhibited the migration of 3LL cells and the tube‐formation capacity of HUVECs. What's more, dioscin‐mediated macrophage polarization inhibited the in vivo metastasis of 3LL cells. In conclusion, dioscin may act as a new anti‐tumour agent by inhibiting TAMs via JNK and STAT3 pathways in lung cancer.
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Affiliation(s)
- Luyun Cui
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guangdie Yang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiani Ye
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yinan Yao
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lu
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Junjun Chen
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Liangjie Fang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shan Lu
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianying Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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158
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Bsat M, Chapuy L, Rubio M, Sarfati M. A two-step human culture system replicates intestinal monocyte maturation cascade: Conversion of tissue-like inflammatory monocytes into macrophages. Eur J Immunol 2020; 50:1676-1690. [PMID: 32557554 DOI: 10.1002/eji.202048555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/05/2020] [Accepted: 06/17/2020] [Indexed: 12/14/2022]
Abstract
Monocyte maturation program into macrophages (MΦ) is well defined in murine gut under homeostatic or inflammatory conditions. Obviously, in vivo tracking of monocytes in inflamed tissues remains difficult in humans. Furthermore, in vitro models fall short in generating the surrogates of transient extravasated tissue inflammatory monocytes. Here, we aimed to unravel environmental cues that replicated the human monocyte "waterfall" process in vitro by first, generating tissue-like inflammatory monocytes, which were then shifted toward MΦ. Purified CD14+ CD16- monocytes, cultured with granulocyte-macrophage colony-stimulating factor (GM-CSF), IFN-γ and IL23, differentiated into CD14+ CD163- cells that displayed a monocyte-like morphology. In vitro generated inflammatory CD14+ CD163- (inflammatory monocyte-like cells) cells promoted IL-1β-dependent memory Th17 and Th17/Th1 responses, like the CD14+ CD163- mo-like cells that accumulate in inflamed colon of Crohn's disease patients. Next, in vitro generated inflammatory monocyte-like cells converted to functional CD163+ MΦ following exposure to TGF-β and IL10. Gene set enrichment analysis further revealed a shared molecular signature between converted CD163+ MΦ and MΦ detected in various inflamed nonlymphoid and lymphoid diseased tissues. Our findings propose a two-step in vitro culture that recapitulates human monocyte maturation cascade in inflamed tissue. Manipulation of this process might open therapeutic avenues for chronic inflammatory disorders.
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Affiliation(s)
- Marwa Bsat
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Laurence Chapuy
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Manuel Rubio
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Marika Sarfati
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
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159
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HDAC8 Inhibition Reduces Lesional Iba-1+ Cell Infiltration after Spinal Cord Injury without Effects on Functional Recovery. Int J Mol Sci 2020; 21:ijms21124539. [PMID: 32630606 PMCID: PMC7352158 DOI: 10.3390/ijms21124539] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/10/2020] [Accepted: 06/21/2020] [Indexed: 12/30/2022] Open
Abstract
Pan-histone deacetylase (HDAC) inhibition with valproic acid (VPA) has beneficial effects after spinal cord injury (SCI), although with side effects. We focused on specific HDAC8 inhibition, because it is known to reduce anti-inflammatory mediators produced by macrophages (Mφ). We hypothesized that HDAC8 inhibition improves functional recovery after SCI by reducing pro-inflammatory classically activated Mφ. Specific HDAC8 inhibition with PCI-34051 reduced the numbers of perilesional Mφ as measured by histological analyses, but did not improve functional recovery (Basso Mouse Scale). We could not reproduce the published improvement of functional recovery described in contusion SCI models using VPA in our T-cut hemisection SCI model. The presence of spared fibers might be the underlying reason for the conflicting data in different SCI models.
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160
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Cannabinoid type 2 receptor manipulates skeletal muscle regeneration partly by regulating macrophage M1/M2 polarization in IR injury in mice. Life Sci 2020; 256:117989. [PMID: 32565250 DOI: 10.1016/j.lfs.2020.117989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/04/2020] [Accepted: 06/16/2020] [Indexed: 12/18/2022]
Abstract
AIMS The beneficial effects of cannabinoid type 2 receptor (CB2R) activation have been verified in various tissue repair processes. Our recent study revealed CB2R activation promotes myogenesis partly through Nrf2 signaling in a mouse skeletal muscle ischemia-reperfusion (IR) injury model. Other relevant mechanisms need to be further elucidated. Macrophages orchestrate tissue regeneration mainly by changing their phenotype and function. The aim of this study was to investigate the role of CB2R in IR-induced skeletal muscle regeneration, focusing on its impact on macrophage polarization and the consequences on myogenesis. MAIN METHODS The effects of CB2R on skeletal muscle regeneration, and the macrophage infiltration and M1/M2 polarization were tested with the IR injury model in wild type (WT) and CB2R knockout (CB2R-KO) mice. The effect of CB2R on peritoneal macrophage polarization, and its impact on the myoblasts differentiation was evaluated by co-culture experiments in vitro. KEY FINDINGS The present study revealed the myofiber regeneration was hindered in the CB2R-KO mice. The infiltration of M1 macrophages and relevant markers' protein expression were enhanced in the CB2R-KO mice, while that of M2 macrophages was decreased compared with the WT mice. The in vitro studies further demonstrated that the absence of CB2R promoted M1 polarization while inhibited M2 polarization. The promoted M1 polarization and retarded M2 polarization in CB2R-KO macrophages hindered myoblasts differentiation. SIGNIFICANCE Overall, these results suggested CB2R plays a beneficial effect on skeletal muscle regeneration partly by regulating macrophage M1/M2 polarization after IR injury in mice.
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161
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Avanoǧlu Güler A, Rossi FW, Bellando-Randone S, Prevete N, Tufan A, Manetti M, de Paulis A, Matucci-Cerinic M. The Role of Endogenous Eicosapentaenoic Acid and Docosahexaenoic Acid-Derived Resolvins in Systemic Sclerosis. Front Immunol 2020; 11:1249. [PMID: 32636845 PMCID: PMC7318896 DOI: 10.3389/fimmu.2020.01249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/18/2020] [Indexed: 12/19/2022] Open
Abstract
Resolvins, the member of specialized pro-resolving mediators, are produced from omega-3 polyunsaturated fatty acids as a response to an acute inflammatory process in that termination and resolution of inflammation. In the acute inflammation, these lipid mediators limit polymorphonuclear cells infiltration, proinflammatory cytokine production; promote efferocytosis, and regulate several cell types being important roles in innate and adaptive immunity. Any dysregulation or defect of the resolution phase result in prolonged, persistent inflammation and eventually fibrosis. Resolvins are implicated in the development of various chronic autoimmune diseases. Systemic sclerosis (SSc) is a very complicated, chronic autoimmune disorder proceeding with vasculopathy, inflammation, and fibrosis. Dysregulation of innate and adaptive immunity is another important contributing factor in the pathogenesis of SSc. In this review, we will focus on the different roles of this new family of lipid mediators, characterized by the ability to prevent the spread of inflammation and its chronicity in various ways and how they can control the development of fibrotic diseases like SSc.
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Affiliation(s)
- Aslıhan Avanoǧlu Güler
- Department of Experimental and Clinical Medicine, University of Florence and Department of Geriatric Medicine, Division of Rheumatology AOUC, Florence, Italy
- Department of Internal Medicine, Division of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Francesca Wanda Rossi
- Department of Internal Medicine, Clinical Immunology and Rheumatology, University of Naples Federico II, Naples, Italy
| | - Silvia Bellando-Randone
- Department of Experimental and Clinical Medicine, University of Florence and Department of Geriatric Medicine, Division of Rheumatology AOUC, Florence, Italy
| | - Nella Prevete
- Department of Internal Medicine, Clinical Immunology and Rheumatology, University of Naples Federico II, Naples, Italy
| | - Abdurrahman Tufan
- Department of Internal Medicine, Division of Rheumatology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Mirko Manetti
- Department of Experimental and Clinical Medicine, University of Florence and Department of Geriatric Medicine, Division of Rheumatology AOUC, Florence, Italy
| | - Amato de Paulis
- Department of Internal Medicine, Clinical Immunology and Rheumatology, University of Naples Federico II, Naples, Italy
| | - Marco Matucci-Cerinic
- Department of Experimental and Clinical Medicine, University of Florence and Department of Geriatric Medicine, Division of Rheumatology AOUC, Florence, Italy
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162
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Werner L, Dreyer JH, Hartmann D, Barros MHM, Büttner-Herold M, Grittner U, Niedobitek G. Tumor-associated macrophages in classical Hodgkin lymphoma: hormetic relationship to outcome. Sci Rep 2020; 10:9410. [PMID: 32523087 PMCID: PMC7287068 DOI: 10.1038/s41598-020-66010-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/11/2020] [Indexed: 12/17/2022] Open
Abstract
Commonly attributed to the prevalence of M2 macrophages, tumor-associated macrophages (TAM) are linked to poor outcome in Hodgkin lymphoma (HL). MYC is supposed to control the expression of M2-specific genes in macrophages, and deficiency in MYC-positive macrophages inhibits tumor growth in mouse models. To verify this hypothesis for HL, seventy-six samples were subjected to immunohistochemical double staining using CD68 or CD163 macrophage-specific antibodies and a reagent detecting MYC. For each cell population, labelled cells were grouped according to low, intermediate and high numbers and related to disease-free survival (DFS) and overall survival (OS). MYC+ cells accounted for 21% and 18% of CD68+ and CD163+ cells, respectively. Numbers of MYC- macrophages were significantly higher in EBV+ cases while no differences were observed for MYC+ macrophages between EBV+ and EBV- cases. Cases with highest numbers of macrophages usually showed worst DFS and OS. In most scenarios, intermediate numbers of macrophages were associated with better outcome than very low or very high numbers. Our observations are reminiscent of the "hormesis hypothesis" and suggest that a relative lack of TAM may allow HL growth while macrophages display an inhibitory effect with increasing numbers. Above a certain threshold, TAM may again support tumor growth.
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Affiliation(s)
- Laura Werner
- Institute for Pathology, Unfallkrankenhaus Berlin, Berlin, Germany.
| | | | - David Hartmann
- Institute for Pathology, Unfallkrankenhaus Berlin, Berlin, Germany
| | | | - Maike Büttner-Herold
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-University Erlangen Nuremberg, Erlangen, Germany
| | - Ulrike Grittner
- Institute of Biometry and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Gerald Niedobitek
- Institute for Pathology, Unfallkrankenhaus Berlin, Berlin, Germany.,Institute for Pathology, Sana Klinikum Lichtenberg, Berlin, Germany
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163
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Rizzo C, Grasso G, Destro Castaniti GM, Ciccia F, Guggino G. Primary Sjogren Syndrome: Focus on Innate Immune Cells and Inflammation. Vaccines (Basel) 2020; 8:vaccines8020272. [PMID: 32503132 PMCID: PMC7349953 DOI: 10.3390/vaccines8020272] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/17/2022] Open
Abstract
Primary Sjogren Syndrome (pSS) is a complex, multifactorial rheumatic disease that mainly targets salivary and lacrimal glands, inducing epithelitis. The cause behind the autoimmunity outbreak in pSS is still elusive; however, it seems related to an aberrant reaction to exogenous triggers such as viruses, combined with individual genetic pre-disposition. For a long time, autoantibodies were considered as the hallmarks of this disease; however, more recently the complex interplay between innate and adaptive immunity as well as the consequent inflammatory process have emerged as the main mechanisms of pSS pathogenesis. The present review will focus on innate cells and on the principal mechanisms of inflammation connected. In the first part, an overview of innate cells involved in pSS pathogenesis is provided, stressing in particular the role of Innate Lymphoid Cells (ILCs). Subsequently we have highlighted the main inflammatory pathways, including intra- and extra-cellular players. A better knowledge of such processes could determine the detection of new therapeutic targets that are a major need for pSS.
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Affiliation(s)
- Chiara Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, Piazza delle Cliniche 2, 90110 Palermo, Italy; (C.R.); (G.G.); (G.M.D.C.)
| | - Giulia Grasso
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, Piazza delle Cliniche 2, 90110 Palermo, Italy; (C.R.); (G.G.); (G.M.D.C.)
| | - Giulia Maria Destro Castaniti
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, Piazza delle Cliniche 2, 90110 Palermo, Italy; (C.R.); (G.G.); (G.M.D.C.)
| | - Francesco Ciccia
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy;
| | - Giuliana Guggino
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, Piazza delle Cliniche 2, 90110 Palermo, Italy; (C.R.); (G.G.); (G.M.D.C.)
- Correspondence: ; Tel.: +39-091-6552260
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164
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Sarode P, Zheng X, Giotopoulou GA, Weigert A, Kuenne C, Günther S, Friedrich A, Gattenlöhner S, Stiewe T, Brüne B, Grimminger F, Stathopoulos GT, Pullamsetti SS, Seeger W, Savai R. Reprogramming of tumor-associated macrophages by targeting β-catenin/FOSL2/ARID5A signaling: A potential treatment of lung cancer. SCIENCE ADVANCES 2020; 6:eaaz6105. [PMID: 32548260 PMCID: PMC7274802 DOI: 10.1126/sciadv.aaz6105] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/27/2020] [Indexed: 05/03/2023]
Abstract
Tumor-associated macrophages (TAMs) influence lung tumor development by inducing immunosuppression. Transcriptome analysis of TAMs isolated from human lung tumor tissues revealed an up-regulation of the Wnt/β-catenin pathway. These findings were reproduced in a newly developed in vitro "trained" TAM model. Pharmacological and macrophage-specific genetic ablation of β-catenin reprogrammed M2-like TAMs to M1-like TAMs both in vitro and in various in vivo models, which was linked with the suppression of primary and metastatic lung tumor growth. An in-depth analysis of the underlying signaling events revealed that β-catenin-mediated transcriptional activation of FOS-like antigen 2 (FOSL2) and repression of the AT-rich interaction domain 5A (ARID5A) drive gene regulatory switch from M1-like TAMs to M2-like TAMs. Moreover, we found that high expressions of β-catenin and FOSL2 correlated with poor prognosis in patients with lung cancer. In conclusion, β-catenin drives a transcriptional switch in the lung tumor microenvironment, thereby promoting tumor progression and metastasis.
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Affiliation(s)
- Poonam Sarode
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
| | - Xiang Zheng
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
| | - Georgia A. Giotopoulou
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, 26504, Greece and Lung Carcinogenesis Laboratory, Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD), University Hospital, Ludwig-Maximilians University and Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich 81377, Germany
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, Frankfurt 60323, Germany
| | - Carste Kuenne
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
| | - Aleksandra Friedrich
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
| | - Stefan Gattenlöhner
- Department of Pathology, Member of the DZL, Justus Liebig University, Giessen 35390, Germany
| | - Thorsten Stiewe
- Institute of Molecular Oncology, Philipps-University Marburg, Member of the DZL, Marburg 35043, Germany
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, Frankfurt 60323, Germany
- Frankfurt Cancer Institute (FCI), Goethe University, 60596 Frankfurt am Main, Germany
| | - Friedrich Grimminger
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392 Giessen, Germany
| | - Georgios T. Stathopoulos
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, 26504, Greece and Lung Carcinogenesis Laboratory, Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD), University Hospital, Ludwig-Maximilians University and Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich 81377, Germany
| | - Soni Savai Pullamsetti
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392 Giessen, Germany
| | - Werner Seeger
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392 Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, 35392 Giessen, Germany
| | - Rajkumar Savai
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim 61231, Germany
- Frankfurt Cancer Institute (FCI), Goethe University, 60596 Frankfurt am Main, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392 Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, 35392 Giessen, Germany
- Corresponding author.
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165
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Raggi F, Bosco MC. Targeting Mononuclear Phagocyte Receptors in Cancer Immunotherapy: New Perspectives of the Triggering Receptor Expressed on Myeloid Cells (TREM-1). Cancers (Basel) 2020; 12:cancers12051337. [PMID: 32456204 PMCID: PMC7281211 DOI: 10.3390/cancers12051337] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammatory cells are major players in the onset of cancer. The degree of inflammation and type of inflammatory cells in the tumor microenvironment (TME) are responsible for tilting the balance between tumor progression and regression. Cancer-related inflammation has also been shown to influence the efficacy of conventional therapy. Mononuclear phagocytes (MPs) represent a major component of the inflammatory circuit that promotes tumor progression. Despite their potential to activate immunosurveillance and exert anti-tumor responses, MPs are subverted by the tumor to support its growth, immune evasion, and spread. MP responses in the TME are dictated by a network of stimuli integrated through the cross-talk between activatory and inhibitory receptors. Alterations in receptor expression/signaling can create excessive inflammation and, when chronic, promote tumorigenesis. Research advances have led to the development of new therapeutic strategies aimed at receptor targeting to induce a tumor-infiltrating MP switch from a cancer-supportive toward an anti-tumor phenotype, demonstrating efficacy in different human cancers. This review provides an overview of the role of MP receptors in inflammation-mediated carcinogenesis and discusses the most recent updates regarding their targeting for immunotherapeutic purposes. We focus in particular on the TREM-1 receptor, a major amplifier of MP inflammatory responses, highlighting its relevance in the development and progression of several types of inflammation-associated malignancies and the promises of its inhibition for cancer immunotherapy.
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166
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Zhao X, Sun L, Mu T, Yi J, Ma C, Xie H, Liu M, Tang H. An HBV-encoded miRNA activates innate immunity to restrict HBV replication. J Mol Cell Biol 2020; 12:263-276. [PMID: 31865380 PMCID: PMC7232129 DOI: 10.1093/jmcb/mjz104] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/28/2019] [Accepted: 10/25/2019] [Indexed: 02/06/2023] Open
Abstract
We previously identified that hepatitis B virus (HBV) encodes a microRNA (HBV-miR-3) that restrains HBV replication by targeting the HBV transcript. However, whether HBV-miR-3 affects host innate immunity to modulate HBV replication remains unclear. Here, we examined the vital functions of HBV-miR-3 in the innate immune response after HBV infection. We found that HBV-miR-3 expression gradually increased in a dose- and time-dependent manner in HBV-infected HepG2-NTCP cells. HBV-miR-3 activated the JAK/STAT signaling pathway by downregulating SOCS5 in hepatocytes, thereby enhancing the IFN-induced anti-HBV effect. In addition, HBV-miR-3 in exosomes facilitated the M1 polarization of macrophages. Furthermore, exosomes containing HBV-miR-3 enhanced the secretion of IL-6 via inhibiting the SOCS5-mediated ubiquitination of EGFR. In short, these results demonstrate that HBV-miR-3 activates the innate immune response to restrain HBV replication by multiple pathways, which may suppress HBV-induced acute liver cell injury and affect the progression of persistent HBV infection.
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Affiliation(s)
- Xiaoqing Zhao
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Lu Sun
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Ting Mu
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Jianying Yi
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Chaoqun Ma
- Department of Laboratory Medicine, General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Hong Xie
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Min Liu
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Hua Tang
- Tianjin Life Science Research Center, Tianjin Key Laboratory of Inflammation Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
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167
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GTS-21 Reduces Inflammation in Acute Lung Injury by Regulating M1 Polarization and Function of Alveolar Macrophages. Shock 2020; 51:389-400. [PMID: 29608552 DOI: 10.1097/shk.0000000000001144] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Acute lung injury (ALI) is a severe outcome of sepsis. Alveolar macrophages (AMs) play key roles in defense, resolution in ALI. The polarization of AMs is dependent on micro environmental stimuli and might influence the progression of ALI. Gainesville Tokushima scientists (GTS)-21, a selective α7 nicotinic acetylcholine receptor agonist of the cholinergic anti-inflammatory pathway (CAP), has recently been established to be promising in the treatment of ALI. However, the molecular mechanism underlying the GTS-21-mediated suppression of inflammatory responses has been explored only partially. In this study, we examined the relation between GTS-21 and AM polarization in ALI. METHODS The adoptive transfer of M1 (classically activated) and M2 (alternatively activated)-polarized AMs was performed to AM-depleted ALI mice, along with the administration of GTS-21 in a murine model of lipopolysaccharide (LPS)-induced ALI and in isolated AMs that had been stimulated by LPS in vitro. RESULTS The adoptive transfer of M1-polarized AMs aggravated the inflammatory response in the lung in contrast to the adoptive transfer of M2-polarized AMs. GTS-21 protected the lung from the effect of LPS, preventing injury and decreasing the number of AMs, AM-related pro-inflammatory cytokine levels, high mobility group box 1 expression levels in AMs. In addition, GTS-21 significantly diminished the number of M1-polarized AM and increased the number of M2-polarized AM, by flow cytometry, RT-PCR, enzyme-linked immunosorbent assay, and the Arg1 and iNOS activity assays. CONCLUSION The GTS-21 substantially ameliorates LPS-induced ALI. This protection is predominantly associated with the inhibition of pulmonary AM M1 polarization and alteration in AM function.
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168
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Huang K, Gu Z, Wu J. Tofu-Incorporated Hydrogels for Potential Bone Regeneration. ACS Biomater Sci Eng 2020; 6:3037-3045. [DOI: 10.1021/acsbiomaterials.9b01997] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Keqing Huang
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, P. R. China
- Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen, 518057, P. R. China
| | - Zhipeng Gu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
- Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen, 518057, P. R. China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, P. R. China
- Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen, 518057, P. R. China
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169
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Liu L, Jin R, Hao J, Zeng J, Yin D, Yi Y, Zhu M, Mandal A, Hua Y, Ng CK, Egilmez NK, Sauter ER, Li B. Consumption of the Fish Oil High-Fat Diet Uncouples Obesity and Mammary Tumor Growth through Induction of Reactive Oxygen Species in Protumor Macrophages. Cancer Res 2020; 80:2564-2574. [PMID: 32213543 DOI: 10.1158/0008-5472.can-19-3184] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/22/2020] [Accepted: 03/19/2020] [Indexed: 01/22/2023]
Abstract
Obesity is associated with increased risk of many types of cancer and can be induced by various high-fat diets (HFD) from different fat sources. It remains unknown whether fatty acid composition in different HFD influences obesity-associated tumor development. Here we report that consumption of either a cocoa butter or fish oil HFD induced similar obesity in mouse models. While obesity induced by the cocoa butter HFD was associated with accelerated mammary tumor growth, consumption of the fish oil HFD uncoupled obesity from increased mammary tumor growth and exhibited a decrease in protumor macrophages. Compared with fatty acid (FA) components in both HFDs, n-3 FA rich in the fish oil HFD induced significant production of reactive oxygen species (ROS) and macrophage death. Moreover, A-FABP expression in the protumor macrophages facilitated intracellular transportation of n-3 FA and oxidation of mitochondrial FA. A-FABP deficiency diminished n-3 FA-mediated ROS production and macrophage death in vitro and in vivo. Together, our results demonstrate a novel mechanism by which n-3 FA induce ROS-mediated protumor macrophage death in an A-FABP-dependent manner. SIGNIFICANCE: This study provides mechanistic insight into dietary supplementation with fish oil for breast cancer prevention and advances a new concept that not all HFDs leading to obesity are tumorigenic. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/12/2564/F1.large.jpg.
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MESH Headings
- Animals
- Carcinogenesis/immunology
- Carcinogenesis/metabolism
- Cell Line, Tumor/transplantation
- Diet, High-Fat/adverse effects
- Diet, High-Fat/methods
- Dietary Fats/adverse effects
- Fatty Acid-Binding Proteins/genetics
- Fatty Acid-Binding Proteins/metabolism
- Female
- Fish Oils/administration & dosage
- Humans
- Macrophages/cytology
- Macrophages/immunology
- Macrophages/metabolism
- Mammary Glands, Animal/cytology
- Mammary Glands, Animal/immunology
- Mammary Glands, Animal/pathology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/prevention & control
- Mice
- Mice, Knockout
- Mitochondria/metabolism
- Obesity/complications
- Obesity/immunology
- Obesity/metabolism
- Primary Cell Culture
- Reactive Oxygen Species/metabolism
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Affiliation(s)
- Lianliang Liu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
| | - Rong Jin
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
- Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jiaqing Hao
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
| | - Jun Zeng
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Di Yin
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yanmei Yi
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
- Department of Histology and Embryology, Guangdong Medical University, Guangdong, China
| | - Mingming Zhu
- Department of Radiology, University of Louisville, Louisville, Kentucky
| | - Anita Mandal
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
| | - Yuan Hua
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
| | - Chin K Ng
- Department of Radiology, University of Louisville, Louisville, Kentucky
| | - Nejat K Egilmez
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky
| | - Edward R Sauter
- Division of Cancer Prevention, NCI, NIH, Rockville, Maryland
| | - Bing Li
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky.
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170
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Kim SG. Immunomodulation for maxillofacial reconstructive surgery. Maxillofac Plast Reconstr Surg 2020; 42:5. [PMID: 32206664 PMCID: PMC7058765 DOI: 10.1186/s40902-020-00249-4] [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: 01/23/2020] [Accepted: 02/24/2020] [Indexed: 02/06/2023] Open
Abstract
Immunomodulation is a technique for the modulation of immune responses against graft material to improve surgical success rates. The main target cell for the immunomodulation is a macrophage because it is the reaction site of the graft and controls the healing process. Macrophages can be classified into M1 and M2 types. Most immunomodulation techniques focus on the rapid differentiation of M2-type macrophage. An M2 inducer, 4-hexylresorcinol, has been recently identified and is used for bone grafts and dental implant coatings.
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Affiliation(s)
- Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Jukhyun-gil 25457 South Korea
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171
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Orliaguet L, Dalmas E, Drareni K, Venteclef N, Alzaid F. Mechanisms of Macrophage Polarization in Insulin Signaling and Sensitivity. Front Endocrinol (Lausanne) 2020; 11:62. [PMID: 32140136 PMCID: PMC7042402 DOI: 10.3389/fendo.2020.00062] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022] Open
Abstract
Type-2 diabetes (T2D) is a disease of two etiologies: metabolic and inflammatory. At the cross-section of these etiologies lays the phenomenon of metabolic inflammation. Whilst metabolic inflammation is characterized as systemic, a common starting point is the tissue-resident macrophage, who's successful physiological or aberrant pathological adaptation to its microenvironment determines disease course and severity. This review will highlight the key mechanisms in macrophage polarization, inflammatory and non-inflammatory signaling that dictates the development and progression of insulin resistance and T2D. We first describe the known homeostatic functions of tissue macrophages in insulin secreting and major insulin sensitive tissues. Importantly we highlight the known mechanisms of aberrant macrophage activation in these tissues and the ways in which this leads to impairment of insulin sensitivity/secretion and the development of T2D. We next describe the cellular mechanisms that are known to dictate macrophage polarization. We review recent progress in macrophage bio-energetics, an emerging field of research that places cellular metabolism at the center of immune-effector function. Importantly, following the advent of the metabolically-activated macrophage, we cover the known transcriptional and epigenetic factors that canonically and non-canonically dictate macrophage differentiation and inflammatory polarization. In closing perspectives, we discuss emerging research themes and highlight novel non-inflammatory or non-immune roles that tissue macrophages have in maintaining microenvironmental and systemic homeostasis.
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Affiliation(s)
- Lucie Orliaguet
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Elise Dalmas
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Karima Drareni
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
- Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania, Philadelphia, PA, United States
| | - Nicolas Venteclef
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Fawaz Alzaid
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
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172
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Guo M, Bafligil C, Tapmeier T, Hubbard C, Manek S, Shang C, Martinez FO, Schmidt N, Obendorf M, Hess-Stumpp H, Zollner TM, Kennedy S, Becker CM, Zondervan KT, Cribbs AP, Oppermann U. Mass cytometry analysis reveals a distinct immune environment in peritoneal fluid in endometriosis: a characterisation study. BMC Med 2020; 18:3. [PMID: 31907005 PMCID: PMC6945609 DOI: 10.1186/s12916-019-1470-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/19/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Endometriosis is a gynaecological condition characterised by immune cell infiltration and distinct inflammatory signatures found in the peritoneal cavity. In this study, we aim to characterise the immune microenvironment in samples isolated from the peritoneal cavity in patients with endometriosis. METHODS We applied mass cytometry (CyTOF), a recently developed multiparameter single-cell technique, in order to characterise and quantify the immune cells found in peritoneal fluid and peripheral blood from endometriosis and control patients. RESULTS Our results demonstrate the presence of more than 40 different distinct immune cell types within the peritoneal cavity. This suggests that there is a complex and highly heterogeneous inflammatory microenvironment underpinning the pathology of endometriosis. Stratification by clinical disease stages reveals a dynamic spectrum of cell signatures suggesting that adaptations in the inflammatory system occur due to the severity of the disease. Notably, among the inflammatory microenvironment in peritoneal fluid (PF), the presence of CD69+ T cell subsets is increased in endometriosis when compared to control patient samples. On these CD69+ cells, the expression of markers associated with T cell function are reduced in PF samples compared to blood. Comparisons between CD69+ and CD69- populations reveal distinct phenotypes across peritoneal T cell lineages. Taken together, our results suggest that both the innate and the adaptive immune system play roles in endometriosis. CONCLUSIONS This study provides a systematic characterisation of the specific immune environment in the peritoneal cavity and identifies cell immune signatures associated with endometriosis. Overall, our results provide novel insights into the specific cell phenotypes governing inflammation in patients with endometriosis. This prospective study offers a useful resource for understanding disease pathology and opportunities for identifying therapeutic targets.
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Affiliation(s)
- Manman Guo
- Botnar Research Centre, NIHR Biomedical Research Unit Oxford, Nuffield Department of Musculoskeletal Sciences, University of Oxford, Oxford, UK.
| | - Cemsel Bafligil
- Botnar Research Centre, NIHR Biomedical Research Unit Oxford, Nuffield Department of Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Thomas Tapmeier
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Carol Hubbard
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Sanjiv Manek
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Catherine Shang
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Fernando O Martinez
- Botnar Research Centre, NIHR Biomedical Research Unit Oxford, Nuffield Department of Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Nicole Schmidt
- Bayer AG, Drug Discovery Pharmaceuticals, Gynecological Therapies, Müllerstr. 178, Berlin, Germany
| | - Maik Obendorf
- Bayer AG, Drug Discovery Pharmaceuticals, Gynecological Therapies, Müllerstr. 178, Berlin, Germany
| | - Holger Hess-Stumpp
- Bayer AG, Drug Discovery Pharmaceuticals, Gynecological Therapies, Müllerstr. 178, Berlin, Germany
| | - Thomas M Zollner
- Bayer AG, Drug Discovery Pharmaceuticals, Gynecological Therapies, Müllerstr. 178, Berlin, Germany
| | - Stephen Kennedy
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Christian M Becker
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Krina T Zondervan
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK.,The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Adam P Cribbs
- Botnar Research Centre, NIHR Biomedical Research Unit Oxford, Nuffield Department of Musculoskeletal Sciences, University of Oxford, Oxford, UK.
| | - Udo Oppermann
- Botnar Research Centre, NIHR Biomedical Research Unit Oxford, Nuffield Department of Musculoskeletal Sciences, University of Oxford, Oxford, UK.,Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Freiburg im Breisgau, Germany
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173
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Hu Y, Gui Z, Zhou Y, Xia L, Lin K, Xu Y. Quercetin alleviates rat osteoarthritis by inhibiting inflammation and apoptosis of chondrocytes, modulating synovial macrophages polarization to M2 macrophages. Free Radic Biol Med 2019; 145:146-160. [PMID: 31550528 DOI: 10.1016/j.freeradbiomed.2019.09.024] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/05/2019] [Accepted: 09/20/2019] [Indexed: 12/13/2022]
Abstract
Osteoarthritis (OA) is a progressive joint disorder that is primarily characterized by the degeneration and destruction of the articular cartilage. Cartilage matrix degradation, production of proinflammatory mediators, chondrocyte apoptosis and activation of macrophages in the synovial are involved in OA pathogenesis. Current non-surgical therapies for OA mainly aim at relieving pain but can barely alleviate the progression of OA. Quercetin, a naturally occurring flavonoid has shown potent anti-inflammatory effects, however, its effects and underlying mechanisms on OA have seldom been systematically illuminated. In this study, we explored the protective effects of quercetin on repairing OA-induced cartilage injuries and its possible mechanisms. In vitro, quercetin remarkably suppressed the expression of matrix degrading proteases and inflammatory mediators, meantime promoted the production of cartilage anabolic factors in interleukin-1β-induced (IL-1β) rat chondrocytes. In addition, quercetin exhibited anti-apoptotic effects by decreasing intracellular reactive oxygen species (ROS), restoring mitochondrial membrane potential (MMP) and inhibiting the Caspase-3 pathway in apoptotic rat chondrocytes. Moreover, quercetin induced M2 polarization of macrophages and upregulated the expression of transforming growth factor β (TGF-β) and insulin-like growth factor (IGF), which in turn created a pro-chondrogenic microenvironment for chondrocytes and promoted the synthesis of glycosaminoglycan (GAG) in chondrocytes. In vivo, intra-articular injection of quercetin alleviated the degradation of the cartilage and the apoptosis of chondrocytes in a rat OA model. Moreover, the expression of TGF-β1 and TGF-β2 in the synovial fluid and the ratio of M2 macrophages in the synovial membrane were elevated. In summary, our study proves that quercetin exerts chondroprotective effects by inhibiting inflammation and apoptosis of chondrocytes, modulating synovial macrophages polarization to M2 macrophages and creating a pro-chondrogenic environment for chondrocytes to enhance cartilage repair under OA environment. It is suggested that quercetin may serve as a potential drug for OA treatment.
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Affiliation(s)
- Yue Hu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhipeng Gui
- National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China; Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuning Zhou
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Lunguo Xia
- National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China; Department of Orthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Kaili Lin
- National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China; Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yuanjin Xu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
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174
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Liu J, Chen B, Bao J, Zhang Y, Lei L, Yan F. Macrophage polarization in periodontal ligament stem cells enhanced periodontal regeneration. Stem Cell Res Ther 2019; 10:320. [PMID: 31730019 PMCID: PMC6858751 DOI: 10.1186/s13287-019-1409-4] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/23/2019] [Accepted: 09/04/2019] [Indexed: 12/12/2022] Open
Abstract
Background The inflammation and regeneration process may be accompanied by the shift in the M1/M2 polarization of macrophages to adapt to extracellular signals. How the macrophages responded to the altered immunological environment in the periodontal niche after stem cell transplantation has never been explored. The purpose of present study is to investigate whether M1/M2 polarization of macrophages participated in the tissue homeostasis and wound healing during periodontal ligament stem cell (PDLSC)-based periodontal regeneration. Methods A rat periodontal defect model was utilized to observe the regeneration process in the PDLSC transplantation-enhanced periodontal repair. Dynamic changes in the markers of M1/M2 macrophages were observed on days 3, 7, and 21 post surgery. In addition, the outcome of regeneration was analyzed on day 21 after surgery. To further investigate the effect of PDLSCs on macrophage polarization, the conditioned medium of PDLSCs was utilized to treat M0, M1, and M2 macrophages for 24 h; markers of M1/M2 polarization were evaluated in macrophages. Results Elevated bone volume and average thickness of bone trabecular was observed in the PDLSC-treated group by micro-computed tomography on day 21. In addition, enhanced periodontal regeneration was observed in the PDLSC-treated group with cementum-like structure regeneration and collagen fiber formation, which inserted into the newly formed cementum. On day 3, PDLSC transplantation increased IL-10 level in the periodontal tissue, while decreased TNF-α in the early stage of periodontal regeneration. On day 7, enhanced CD163+ cell infiltration and heightened expression of markers of M2 macrophages were observed. Furthermore, conditioned medium from PDLSC culture induced macrophage polarization towards the anti-inflammatory phenotype by downregulating TNF-α and upregulating IL-10, Arg-1, and CD163 in vitro. Conclusions PDLSCs could induce macrophage polarization towards the M2 phenotype, and the shift in the polarization towards M2 macrophages in the early stage of tissue repair contributed to the enhanced periodontal regeneration after stem cell transplantation. Therefore, signals from the transplanted PDLSCs might alter the immune microenvironment to enhance periodontal regeneration.
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Affiliation(s)
- Jiaying Liu
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Bin Chen
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Jun Bao
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Yangheng Zhang
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Lang Lei
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
| | - Fuhua Yan
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
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175
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Bloomer SA, Moyer ED, Brown KE, Kregel KC. Aging results in accumulation of M1 and M2 hepatic macrophages and a differential response to gadolinium chloride. Histochem Cell Biol 2019; 153:37-48. [PMID: 31691025 DOI: 10.1007/s00418-019-01827-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2019] [Indexed: 02/06/2023]
Abstract
Macrophages have vital roles in innate immunity by modulating the inflammatory response via their ability to alter their phenotype from pro-inflammatory (M1) to anti-inflammatory (M2). Aging increases activation of the innate immune system, and macrophage numbers increase in the aged liver. Since macrophages also produce free radical molecules, they are a potential source of age-related oxidative injury in the liver. This study evaluated macrophage phenotype in the aged liver and whether the increase in the number of macrophages with aging is associated with enhanced hepatic oxidative stress. Hepatic macrophage phenotype and oxidative stress were evaluated 2 days after a single intraperitoneal injection of saline or gadolinium chloride (GdCl3, 10 mg/kg) in young (6 months) and aged (24 months) Fischer 344 rats. GdCl3 has been shown to decrease the expression of macrophage-specific markers and impair macrophage phagocytosis in the liver. Saline-treated aged rats demonstrated greater numbers of both M1 (HO-1+/iNOS+) and M2 (HO-1+/CD163+) macrophages, without evidence of a phenotypic shift. GdCl3 did not alter levels of dihydroethidium fluorescence or malondialdehyde, suggesting that macrophages are not a major contributor to steady-state levels of oxidative stress. However, GdCl3 decreased M1 and M2 macrophage markers in both age groups, an effect that was attenuated in aged rats. In old animals, GdCl3 decreased iNOS expression to a greater extent than HO-1 or CD163. These results suggest a novel effect of aging on macrophage biology and that GdCl3 shifts hepatic macrophage polarization to the M2 phenotype in aged animals.
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Affiliation(s)
- Steven A Bloomer
- Division of Science and Engineering, Penn State University, Abington College, 1600 Woodland Rd., Abington, PA, 19001, USA.
| | - Eric D Moyer
- Division of Science and Engineering, Penn State University, Abington College, 1600 Woodland Rd., Abington, PA, 19001, USA
| | - Kyle E Brown
- Iowa City Veterans Administration Medical Center, Iowa City, IA, 52242, USA.,Division of Gastroenterology-Hepatology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, IA, 52242, USA.,Program in Free Radical and Radiation Biology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Kevin C Kregel
- Department of Health and Human Physiology, The University of Iowa, Iowa City, IA, 52242, USA
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176
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Adipose-Derived Mesenchymal Stem Cells Promote M2 Macrophage Phenotype through Exosomes. Stem Cells Int 2019; 2019:7921760. [PMID: 31781246 PMCID: PMC6875419 DOI: 10.1155/2019/7921760] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/30/2019] [Accepted: 10/09/2019] [Indexed: 12/13/2022] Open
Abstract
Accumulating evidence has shown that the paracrine factors derived from mesenchymal stem cells (MSCs) are capable of regulating the immune system via interaction with various immune cells. In this study, adipose-derived MSCs (AdMSCs) and human peripheral blood monocytes (PBMCs) were isolated and cultured to examine the effects of MSC-induced macrophages (iMΦ) on inflammation and immune modulation. Indirect coculture with MSCs increased the expression of arginase-1 and mannose receptor (CD206), markers of activated M2 macrophages, in the PBMCs demonstrating that MSC-secreted factors promoted M2-MΦ polarization. Additionally, iMΦ exhibited a similar higher inhibitory effect on the growth of activated T cells compared to that in the other groups (AdMSCs only, AdMSCs plus iMΦ), implying that iMΦ can play a sufficient functional role. Interestingly, the population of FoxP3 Treg cells significantly increased when cocultured with iMΦ, suggesting that iMΦ have an immunomodulatory effect on the Treg cells through the modulation of the FoxP3 expression. Notably, iMΦ expressed high levels of immunosuppressive and anti-inflammatory cytokines, namely IL-10 and TSG-6. Furthermore, we confirmed that the AdMSC-derived exosomes modulated macrophage polarization by upregulating the expression of M2 macrophage markers. Conclusively, our results suggest that iMΦ play a significant role in regulating the immunomodulatory- and inflammatory-mediated responses. Thus, iMΦ may be used as a novel stem cell-based cell-free therapy for the treatment of immune-mediated inflammatory disorders.
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177
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Huang Q, Yang Y, Luo C, Wen Y, Liu R, Li S, Chen T, Sun H, Tang L. An efficient protocol to generate placental chorionic plate-derived mesenchymal stem cells with superior proliferative and immunomodulatory properties. Stem Cell Res Ther 2019; 10:301. [PMID: 31623677 PMCID: PMC6796371 DOI: 10.1186/s13287-019-1405-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/26/2019] [Accepted: 09/02/2019] [Indexed: 12/15/2022] Open
Abstract
Background Placenta-derived MSCs (P-MSCs) represent a promising tool for cell-based therapeutic applications. However, the increasing demand for P-MSCs in clinical trials makes high quality and large number of P-MSCs mandatory. Here, we aim to develop an efficient protocol for P-MSC isolation and culture. Methods The modified explant culture (MEC) method by combining an initial mild enzymatic reaction with the subsequent explant culture was developed to simultaneously produce various P-MSCs from the different regions of the placenta in serum-free medium (SFM). Its isolation efficiencies, cell yield, and proliferative capacity were compared with the conventional explant culture (EC) method. Furthermore, we determined whether functional properties of P-MSCs are affected by the used tissue-harvesting sites in terms of their proliferation, migration, and the immunomodulatory effect on macrophage. Results The MEC method achieved higher yield and shorter time in primary cell confluence in SFM compared with the conventional method. The harvested cells possessed the MSC characteristics and demonstrated significantly stronger proliferation ability. Importantly, MSCs derived from chorionic plate (CP-MSCs) were found to exhibit superior properties to the other P-MSCs in proliferation and migration capacity, maintaining the fetal origin over serial passages. Notably, CP-MSCs show stronger ability in regulating macrophage polarization from M1 to M2. Conclusion Our study developed an efficient and high-yield technique to produce high-quality P-MSCs from the placenta, hence serving as an optimal source of MSCs for clinical application.
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Affiliation(s)
- Qilin Huang
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China.,College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yi Yang
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China.,College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China
| | - Chen Luo
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China
| | - Yi Wen
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China
| | - Ruohong Liu
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China
| | - Shuai Li
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China
| | - Tao Chen
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China
| | - Hongyu Sun
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China.
| | - Lijun Tang
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command (Chengdu Military General Hospital), Chengdu, 610083, China. .,College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China.
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178
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Mury P, Chirico EN, Mura M, Millon A, Canet-Soulas E, Pialoux V. Oxidative Stress and Inflammation, Key Targets of Atherosclerotic Plaque Progression and Vulnerability: Potential Impact of Physical Activity. Sports Med 2019; 48:2725-2741. [PMID: 30302720 DOI: 10.1007/s40279-018-0996-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Atherosclerosis, a complex cardiovascular disease, is a leading cause of mortality and morbidity worldwide. Oxidative stress and inflammation are both involved in the development of atherosclerotic plaque as they increase the biological processes associated with this pathology, such as endothelial dysfunction and macrophage recruitment and adhesion. Atherosclerotic plaque rupture leading to major ischemic events is the result of vulnerable plaque progression, which is a result of the detrimental effect of oxidative stress and inflammation on risk factors for atherosclerotic plaque rupture, such as intraplaque hemorrhage, neovascularization, and fibrous cap thickness. Thus, both are key targets for primary and secondary interventions. It is well recognized that chronic physical activity attenuates oxidative stress in healthy subjects via the improvement of antioxidant enzyme capacities and inflammation via the enhancement of anti-inflammatory molecules. Moreover, it was recently shown that chronic physical activity could decrease oxidative stress and inflammation in atherosclerotic patients. The aim of this review is to summarize the role of oxidative stress and inflammation in atherosclerosis and the results of therapeutic interventions targeting them in both preclinical and clinical studies. The effects of chronic physical activity on these two key processes are then reviewed in vulnerable atherosclerotic plaques in both coronary and carotid arteries.
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Affiliation(s)
- Pauline Mury
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Erica N Chirico
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Mathilde Mura
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Antoine Millon
- University of Lyon, University Claude Bernard Lyon 1, CarMeN Laboratory, INSERM U1060, Bron, France.,Department of Vascular Surgery, Edouard Herriot Hospital, Lyon, France
| | - Emmanuelle Canet-Soulas
- University of Lyon, University Claude Bernard Lyon 1, CarMeN Laboratory, INSERM U1060, Bron, France
| | - Vincent Pialoux
- Team Vascular Biology and Red Blood Cell, Interuniversity Laboratory of Human Movement Biology, University Claude Bernard Lyon 1, University of Lyon, Faculté de Médecine Lyon Est, 8 Avenue Rockefeller, 69008, Lyon, France. .,Laboratory of Excellence GR-Ex, Paris, France. .,Institut Universitaire de France, Paris, France.
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179
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Choe SH, Choi EY, Hyeon JY, Keum BR, Choi IS, Kim SJ. Telmisartan, an angiotensin II receptor blocker, attenuates Prevotella intermedia lipopolysaccharide-induced production of nitric oxide and interleukin-1β in murine macrophages. Int Immunopharmacol 2019; 75:105750. [DOI: 10.1016/j.intimp.2019.105750] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/29/2019] [Accepted: 07/08/2019] [Indexed: 01/01/2023]
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180
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Patel VI, Metcalf JP. Airway Macrophage and Dendritic Cell Subsets in the Resting Human Lung. Crit Rev Immunol 2019; 38:303-331. [PMID: 30806245 DOI: 10.1615/critrevimmunol.2018026459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dendritic cells (DCs) and macrophages (MΦs) are antigen-presenting phagocytic cells found in many peripheral tissues of the human body, including the blood, lymph nodes, skin, and lung. They are vital to maintaining steady-state respiration in the human lung based on their ability to clear airways while also directing tolerogenic or inflammatory responses based on specific stimuli. Over the past three decades, studies have determined that there are multiple subsets of these two general cell types that exist in the airways and interstitium. Identifying these numerous subsets has proven challenging, especially with the unique microenvironments present in the lung. Cells found in the vasculature are not the same subsets found in the skin or the lung, as demonstrated by surface marker expression. By transcriptional profiling, these subsets show similarities but also major differences. Primary human lung cells and/ or tissues are difficult to acquire, particularly in a healthy condition. Additionally, surface marker screening and transcriptional profiling are continually identifying new DC and MΦ subsets. While the overall field is moving forward, we emphasize that more attention needs to focus on replicating the steady-state microenvironment of the lung to reveal the physiological functions of these subsets.
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Affiliation(s)
- Vineet Indrajit Patel
- Pulmonary and Critical Care Division of the Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jordan Patrick Metcalf
- Pulmonary and Critical Care Division of the Department of Medicine and Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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181
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Yu B, Qin SY, Hu BL, Qin QY, Jiang HX, Luo W. Resveratrol improves CCL4-induced liver fibrosis in mouse by upregulating endogenous IL-10 to reprogramme macrophages phenotype from M(LPS) to M(IL-4). Biomed Pharmacother 2019; 117:109110. [DOI: 10.1016/j.biopha.2019.109110] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/05/2019] [Accepted: 06/10/2019] [Indexed: 12/23/2022] Open
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182
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Hamlet SM, Lee RS, Moon H, Alfarsi MA, Ivanovski S. Hydrophilic titanium surface‐induced macrophage modulation promotes pro‐osteogenic signalling. Clin Oral Implants Res 2019; 30:1085-1096. [DOI: 10.1111/clr.13522] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Stephen M. Hamlet
- Menzies Health Institute Queensland Griffith University Gold Coast Queensland Australia
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
| | - Ryan S.B. Lee
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
- School of Dentistry The University of Queensland Herston Queensland Australia
| | - Ho‐Jin Moon
- School of Dentistry and Oral Health Griffith University Gold Coast Queensland Australia
- Department of Dental Materials, School of Dentistry Kyung Hee University Seoul Republic of Korea Australia
| | | | - Sašo Ivanovski
- School of Dentistry The University of Queensland Herston Queensland Australia
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183
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184
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Weigert A, Olesch C, Brüne B. Sphingosine-1-Phosphate and Macrophage Biology-How the Sphinx Tames the Big Eater. Front Immunol 2019; 10:1706. [PMID: 31379883 PMCID: PMC6658986 DOI: 10.3389/fimmu.2019.01706] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/08/2019] [Indexed: 12/11/2022] Open
Abstract
The sphingolipid sphingosine-1-phosphate (S1P) is produced by sphingosine kinases to either signal through intracellular targets or to activate a family of specific G-protein-coupled receptors (S1PR). S1P levels are usually low in peripheral tissues compared to the vasculature, forming a gradient that mediates lymphocyte trafficking. However, S1P levels rise during inflammation in peripheral tissues, thereby affecting resident or recruited immune cells, including macrophages. As macrophages orchestrate initiation and resolution of inflammation, the sphingosine kinase/S1P/S1P-receptor axis emerges as an important determinant of macrophage function in the pathogenesis of inflammatory diseases such as cancer, atherosclerosis, and infection. In this review, we therefore summarize the current knowledge how S1P affects macrophage biology.
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Affiliation(s)
- Andreas Weigert
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
| | - Catherine Olesch
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
| | - Bernhard Brüne
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt, Frankfurt, Germany.,Project Group Translational Medicine and Pharmacology TMP, Fraunhofer Institute for Molecular Biology and Applied Ecology, Frankfurt, Germany.,Frankfurt Cancer Institute, Goethe-University Frankfurt, Frankfurt, Germany
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185
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Yanez M, Jhanji M, Murphy K, Gower RM, Sajish M, Jabbarzadeh E. Nicotinamide Augments the Anti-Inflammatory Properties of Resveratrol through PARP1 Activation. Sci Rep 2019; 9:10219. [PMID: 31308445 PMCID: PMC6629694 DOI: 10.1038/s41598-019-46678-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 07/03/2019] [Indexed: 01/01/2023] Open
Abstract
Resveratrol (RSV) and nicotinamide (NAM) have garnered considerable attention due to their anti-inflammatory and anti-aging properties. NAM is a transient inhibitor of class III histone deacetylase SIRTs (silent mating type information regulation 2 homologs) and SIRT1 is an inhibitor of poly-ADP-ribose polymerase-1 (PARP1). The debate on the relationship between RSV and SIRT1 has precluded the use of RSV as a therapeutic drug. Recent work demonstrated that RSV facilitates tyrosyl-tRNA synthetase (TyrRS)-dependent activation of PARP1. Moreover, treatment with NAM is sufficient to facilitate the nuclear localization of TyrRS that activates PARP1. RSV and NAM have emerged as potent agonists of PARP1 through inhibition of SIRT1. In this study, we evaluated the effects of RSV and NAM on pro-inflammatory macrophages. Our results demonstrate that treatment with either RSV or NAM attenuates the expression of pro-inflammatory markers. Strikingly, the combination of RSV with NAM, exerts additive effects on PARP1 activation. Consistently, treatment with PARP1 inhibitor antagonized the anti-inflammatory effect of both RSV and NAM. For the first time, we report the ability of NAM to augment PARP1 activation, induced by RSV, and its associated anti-inflammatory effects mediated through the induction of BCL6 with the concomitant down regulation of COX-2.
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Affiliation(s)
- Maria Yanez
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Megha Jhanji
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, USA
| | - Kendall Murphy
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - R Michael Gower
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
- Biomedical Engineering Program, University of South Carolina, Columbia, SC, 29208, USA
| | - Mathew Sajish
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, USA
| | - Ehsan Jabbarzadeh
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA.
- Biomedical Engineering Program, University of South Carolina, Columbia, SC, 29208, USA.
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186
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Daood U, Akram Z, Matinlinna J, Fawzy A. Dentine collagen cross-linking using tiopronin-protected Au/EDC nanoparticles formulations. Dent Mater 2019; 35:1017-1030. [DOI: 10.1016/j.dental.2019.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/03/2019] [Accepted: 04/12/2019] [Indexed: 01/19/2023]
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187
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Linton MF, Moslehi JJ, Babaev VR. Akt Signaling in Macrophage Polarization, Survival, and Atherosclerosis. Int J Mol Sci 2019; 20:ijms20112703. [PMID: 31159424 PMCID: PMC6600269 DOI: 10.3390/ijms20112703] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 12/15/2022] Open
Abstract
The PI3K/Akt pathway plays a crucial role in the survival, proliferation, and migration of macrophages, which may impact the development of atherosclerosis. Changes in Akt isoforms or modulation of the Akt activity levels in macrophages significantly affect their polarization phenotype and consequently atherosclerosis in mice. Moreover, the activity levels of Akt signaling determine the viability of monocytes/macrophages and their resistance to pro-apoptotic stimuli in atherosclerotic lesions. Therefore, elimination of pro-apoptotic factors as well as factors that antagonize or suppress Akt signaling in macrophages increases cell viability, protecting them from apoptosis, and this markedly accelerates atherosclerosis in mice. In contrast, inhibition of Akt signaling by the ablation of Rictor in myeloid cells, which disrupts mTORC2 assembly, significantly decreases the viability and proliferation of blood monocytes and macrophages with the suppression of atherosclerosis. In addition, monocytes and macrophages exhibit a threshold effect for Akt protein levels in their ability to survive. Ablation of two Akt isoforms, preserving only a single Akt isoform in myeloid cells, markedly compromises monocyte and macrophage viability, inducing monocytopenia and diminishing early atherosclerosis. These recent advances in our understanding of Akt signaling in macrophages in atherosclerosis may have significant relevance in the burgeoning field of cardio-oncology, where PI3K/Akt inhibitors being tested in cancer patients can have significant cardiovascular and metabolic ramifications.
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Affiliation(s)
- MacRae F Linton
- Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232-6300, USA.
- Department of Pharmacology, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232-6300, USA.
| | - Javid J Moslehi
- Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232-6300, USA.
| | - Vladimir R Babaev
- Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, 2220 Pierce Avenue, Nashville, TN 37232-6300, USA.
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188
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Prevention of incisional hernia using different suture materials for closing the abdominal wall: a comparison of PDS, Vicryl and Prolene in a rat model. Hernia 2019; 24:67-78. [PMID: 31111322 PMCID: PMC7007910 DOI: 10.1007/s10029-019-01941-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/26/2019] [Indexed: 11/26/2022]
Abstract
Purpose An incisional hernia occurs frequently after a midline incision with an incidence of 12.8%. The choice in suture material used for abdominal wall closure is not straightforward and the conflicting literature focuses on clinical outcomes. This study compares a non-absorbable, slow-absorbable and fast-absorbable suture in a rat model, focusing on histological outcomes predicting better fascia healing. Methods 33 male Wistar rats, divided over three groups, each received two separate 1 cm incisions closed with either Prolene 4/0, PDS 4/0 or Vicryl 4/0. At 7 days and 21 days, one of the incisions was explanted. Tissue was semi-quantitatively scored regarding inflammatory cells and collagen fibres present. Using qPCR macrophage polarisation, fibroblast activity and vascularisation were evaluated. Data were analysed by Kruskal–Wallis test with Mann–Whitney U post hoc test. A p value of 0.017 was considered significant after Bonferroni correction. Results All animals recovered without complications and completed the 21 days of follow-up. The Vicryl group showed a higher presence of macrophages after 21 days in comparison with Prolene (p = 0.003) and PDS (p = 0.006) and more foreign body giant cells compared to Prolene at 7 days (p = 0.010) and PDS at 21 days (p < 0.001). qPCR showed 2.5-fold higher expression of clec10A in PDS compared to Prolene after 7 days (p = 0.007). Conclusions The results of this study carefully support the use of PDS suture, compared to Prolene and Vicryl, in abdominal wall closure based on a favourable macrophage response. The heterogeneity and variability in the data might be explained by the spectrum of the macrophage subtype paradigm. Electronic supplementary material The online version of this article (10.1007/s10029-019-01941-9) contains supplementary material, which is available to authorized users.
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189
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De Santa F, Vitiello L, Torcinaro A, Ferraro E. The Role of Metabolic Remodeling in Macrophage Polarization and Its Effect on Skeletal Muscle Regeneration. Antioxid Redox Signal 2019; 30:1553-1598. [PMID: 30070144 DOI: 10.1089/ars.2017.7420] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Significance: Macrophages are crucial for tissue homeostasis. Based on their activation, they might display classical/M1 or alternative/M2 phenotypes. M1 macrophages produce pro-inflammatory cytokines, reactive oxygen species (ROS), and nitric oxide (NO). M2 macrophages upregulate arginase-1 and reduce NO and ROS levels; they also release anti-inflammatory cytokines, growth factors, and polyamines, thus promoting angiogenesis and tissue healing. Moreover, M1 and M2 display key metabolic differences; M1 polarization is characterized by an enhancement in glycolysis and in the pentose phosphate pathway (PPP) along with a decreased oxidative phosphorylation (OxPhos), whereas M2 are characterized by an efficient OxPhos and reduced PPP. Recent Advances: The glutamine-related metabolism has been discovered as crucial for M2 polarization. Vice versa, flux discontinuities in the Krebs cycle are considered additional M1 features; they lead to increased levels of immunoresponsive gene 1 and itaconic acid, to isocitrate dehydrogenase 1-downregulation and to succinate, citrate, and isocitrate over-expression. Critical Issues: A macrophage classification problem, particularly in vivo, originating from a gap in the knowledge of the several intermediate polarization statuses between the M1 and M2 extremes, characterizes this field. Moreover, the detailed features of metabolic reprogramming crucial for macrophage polarization are largely unknown; in particular, the role of β-oxidation is highly controversial. Future Directions: Manipulating the metabolism to redirect macrophage polarization might be useful in various pathologies, including an efficient skeletal muscle regeneration. Unraveling the complexity pertaining to metabolic signatures that are specific for the different macrophage subsets is crucial for identifying new compounds that are able to trigger macrophage polarization and that might be used for therapeutical purposes.
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Affiliation(s)
- Francesca De Santa
- Institute of Cell Biology and Neurobiology (IBCN), National Research Council (CNR), Rome, Italy
| | - Laura Vitiello
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Rome, Italy
| | - Alessio Torcinaro
- Institute of Cell Biology and Neurobiology (IBCN), National Research Council (CNR), Rome, Italy.,Department of Biology and Biotechnology "Charles Darwin," Sapienza University, Rome, Italy
| | - Elisabetta Ferraro
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Rome, Italy
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190
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Curtale G, Rubino M, Locati M. MicroRNAs as Molecular Switches in Macrophage Activation. Front Immunol 2019; 10:799. [PMID: 31057539 PMCID: PMC6478758 DOI: 10.3389/fimmu.2019.00799] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 03/26/2019] [Indexed: 12/25/2022] Open
Abstract
The efficacy of macrophage- mediated inflammatory response relies on the coordinated expression of key factors, which expression is finely regulated at both transcriptional and post-transcriptional level. Several studies have provided compelling evidence that microRNAs play pivotal roles in modulating macrophage activation, polarization, tissue infiltration, and resolution of inflammation. In this review, we highlight the essential molecular mechanisms underlying the different phases of inflammation that are targeted by microRNAs to inhibit or accelerate restoration to tissue integrity and homeostasis. We further review the impact of microRNA-dependent regulation of tumor-associated macrophages and the relative implication for tumor biology.
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Affiliation(s)
- Graziella Curtale
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.,Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - Marcello Rubino
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - Massimo Locati
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.,Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
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191
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He XT, Li X, Xia Y, Yin Y, Wu RX, Sun HH, Chen FM. Building capacity for macrophage modulation and stem cell recruitment in high-stiffness hydrogels for complex periodontal regeneration: Experimental studies in vitro and in rats. Acta Biomater 2019; 88:162-180. [PMID: 30735811 DOI: 10.1016/j.actbio.2019.02.004] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 01/31/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022]
Abstract
Recently, we found that although high-stiffness matrices stimulated osteogenic differentiation of bone marrow-derived stromal cells (BMSCs), the macrophages (Mφs) in high-stiffness transglutaminase crosslinked gelatins (TG-gels) tended to undergo M1 polarization and hence compromised cell osteogenesis. In this study, we hypothesized that the copresentation of interleukin (IL)-4 and stromal cell-derived factor (SDF)-1α in high-stiffness TG-gels may enhance periodontal regeneration by modulating Mφ polarization and promoting endogenous stem cell recruitment. We found that Mφs were more likely to polarize toward an immunomodulatory M2 state in the presence of IL-4 and hence positively influence the osteogenic differentiation of BMSCs when these cells coexisted in either indirect or direct co-culture systems. In cell migration assays, BMSCs exhibited an enhanced capability to move toward gels containing SDF-1α, and more cells could be recruited into the three-dimensional matrix of TG-gels. When TG-gels containing IL-4 and/or SDF-1α were used to repair periodontal defects, more new bone (MicroCT) was formed in animals that received the dual cytokine-loaded transplants at 4 weeks postsurgery. Mφs were recruited to all the transplanted gels, and after one week, more M1-phenotype cells were found in the groups without IL-4, while the presence of IL-4 was more likely to result in M2 polarization (immunofluorescence staining). When the tissue biopsies were histologically examined, the TG-gels containing both IL-4 and SDF-1α led to a generally satisfactory regeneration with respect to attachment recovery (epithelial and connective tissue) and hybrid tissue regeneration (bone, periodontal ligament and cementum). Our data suggest that the incorporation of IL-4 into high-stiffness TG-gels may promote the M2 polarization of Mφs and that SDF-1α can be applied to guide endogenous cell homing. Overall, building capacity for Mφ modulation and cell recruitment in high-stiffness hydrogels represents a simple and effective strategy that can support high levels of periodontal tissue regeneration. STATEMENT OF SIGNIFICANCE: The development of hydrogel-based regenerative therapies centered on the mobilization and stimulation of native cells for therapeutics opens a window toward realizing periodontal endogenous regeneration. In the present study, the parallel use of immunomodulatory and homing factors in high-stiffness hydrogel materials is shown to induce stem cell homing, modulate cell differentiation and indeed induce regrowth of the periodontium. We found that incorporation of interleukin (IL)-4 in high-stiffness TG-gels coaxed macrophages to polarize into M2 phenotypes, and stromal cell-derived factor (SDF)-1α could be applied to direct endogenous cell homing. Hence, we present for the first time a clinically relevant strategy based on macrophage modulation and host cell recruitment that can support high levels of periodontal tissue regeneration.
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Affiliation(s)
- Xiao-Tao He
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xuan Li
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Yu Xia
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Rui-Xin Wu
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Hai-Hua Sun
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China; Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China.
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192
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Gomez-Cambronero J. Lack of effective translational regulation of PLD expression and exosome biogenesis in triple-negative breast cancer cells. Cancer Metastasis Rev 2019; 37:491-507. [PMID: 30091053 DOI: 10.1007/s10555-018-9753-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer that is difficult to treat since cells lack the three receptors (ES, PR, or HER) that the most effective treatments target. We have used a well-established TNBC cell line (MDA-MB-231) from which we found evidence in support for a phospholipase D (PLD)-mediated tumor growth and metastasis: high levels of expression of PLD, as well as the absence of inhibitory miRs (such as miR-203) and 3'-mRNA PARN deadenylase activity in these cells. Such findings are not present in a luminal B cell line, MCF-7, and we propose a new miR•PARN•PLD node that is not uniform across breast cancer molecular subtypes and as such TNBC could be pharmacologically targeted differentially. We review the participation of PLD and phosphatidic acid (PA), its enzymatic product, as new "players" in breast cancer biology, with the aspects of regulation of the tumor microenvironment, macrophage polarization, regulation of PLD transcripts by specific miRs and deadenylases, and PLD-regulated exosome biogenesis. A new signaling miR•PARN•PLD node could serve as new biomarkers for TNBC abnormal signaling and metastatic disease staging, potentially before metastases are able to be visualized using conventional imaging.
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Affiliation(s)
- Julian Gomez-Cambronero
- Department of Biochemistry and Molecular Biology, Wright State University School of Medicine, 3640 Colonel Glenn Highway, Dayton, OH, 45435, USA.
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193
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Peltanova B, Raudenska M, Masarik M. Effect of tumor microenvironment on pathogenesis of the head and neck squamous cell carcinoma: a systematic review. Mol Cancer 2019; 18:63. [PMID: 30927923 PMCID: PMC6441173 DOI: 10.1186/s12943-019-0983-5] [Citation(s) in RCA: 250] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/25/2019] [Indexed: 12/25/2022] Open
Abstract
The tumor microenvironment (TME) is comprised of many different cell populations, such as cancer-associated fibroblasts and various infiltrating immune cells, and non-cell components of extracellular matrix. These crucial parts of the surrounding stroma can function as both positive and negative regulators of all hallmarks of cancer development, including evasion of apoptosis, induction of angiogenesis, deregulation of the energy metabolism, resistance to the immune detection and destruction, and activation of invasion and metastasis. This review represents a summary of recent studies focusing on describing these effects of microenvironment on initiation and progression of the head and neck squamous cell carcinoma, focusing on oral squamous cell carcinoma, since it is becoming clear that an investigation of differences in stromal composition of the head and neck squamous cell carcinoma microenvironment and their impact on cancer development and progression may help better understand the mechanisms behind different responses to therapy and help define possible targets for clinical intervention.
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Affiliation(s)
- Barbora Peltanova
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic
| | - Martina Raudenska
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic.
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic.
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595,, CZ-252 50, Vestec, Czech Republic.
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194
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Kim SY, Nair MG. Macrophages in wound healing: activation and plasticity. Immunol Cell Biol 2019; 97:258-267. [PMID: 30746824 PMCID: PMC6426672 DOI: 10.1111/imcb.12236] [Citation(s) in RCA: 268] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/31/2018] [Accepted: 01/18/2019] [Indexed: 12/13/2022]
Abstract
Macrophages are critically involved in wound healing, from dampening inflammation to clearing cell debris and coordinating tissue repair. Within the wound, the complexity of macrophage function is increasingly recognized, with adverse outcomes when macrophages are inappropriately activated, such as in fibrosis or chronic non-healing wounds. Recent advances in in vivo and translational wound models, macrophage-specific deletions and new technologies to distinguish macrophage subsets, have uncovered the vast spectrum of macrophage activation and effector functions. Here, we summarize the main players in wound-healing macrophage activation and function, including cytokines, apoptotic cells, nucleotides and mechanical stimuli. We highlight recent studies demonstrating cooperation between these factors for optimal wound healing. Next, we describe recent technologies such as cell tracking and single-cell RNA-seq, which have uncovered remarkable plasticity and heterogeneity in blood-derived or tissue-resident macrophages and discuss the implications for wound healing. Lastly, we evaluate macrophage dysfunction in aberrant wound healing that occurs in aging, diabetes and fibrosis. A better understanding of the longevity and plasticity of wound-healing macrophages, and identification of unique macrophage subsets or specific effector molecules in wound healing, would shed light on the therapeutic potential of manipulating macrophage function for optimal wound healing.
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Affiliation(s)
- Sang Yong Kim
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA, USA
| | - Meera G Nair
- Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA, USA
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195
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Chen T, Cao Q, Wang Y, Harris DCH. M2 macrophages in kidney disease: biology, therapies, and perspectives. Kidney Int 2019; 95:760-773. [PMID: 30827512 DOI: 10.1016/j.kint.2018.10.041] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/10/2018] [Accepted: 10/18/2018] [Indexed: 12/13/2022]
Abstract
Tissue macrophages are crucial players in homeostasis, inflammation, and immunity. They are characterized by heterogeneity and plasticity, due to which they display a continuum of phenotypes with M1/M2 presenting 2 extremes of this continuum. M2 macrophages are usually termed in the literature as anti-inflammatory and wound healing. Substantial progress has been made in elucidating the biology of M2 macrophages and their potential for clinical translation. In this review we discuss the current state of knowledge in M2 macrophage research with an emphasis on kidney disease. We explore their therapeutic potential and the challenges in using them as cellular therapies. Some new regulators that shape macrophage polarization and potential areas for future research are also examined.
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Affiliation(s)
- Titi Chen
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia; Center for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia; Department of Renal Medicine, Westmead Hospital, Westmead, New South Wales, Australia.
| | - Qi Cao
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia; Center for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Yiping Wang
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia; Center for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - David C H Harris
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia; Center for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia; Department of Renal Medicine, Westmead Hospital, Westmead, New South Wales, Australia
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196
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Hsieh JY, Keating MT, Smith TD, Meli VS, Botvinick EL, Liu WF. Matrix crosslinking enhances macrophage adhesion, migration, and inflammatory activation. APL Bioeng 2019; 3:016103. [PMID: 31069336 PMCID: PMC6481736 DOI: 10.1063/1.5067301] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/05/2019] [Indexed: 12/13/2022] Open
Abstract
Macrophages are versatile cells of the innate immune system that can adopt a variety of functional phenotypes depending on signals in their environment. In previous work, we found that culture of macrophages on fibrin, the provisional extracellular matrix protein, inhibits their inflammatory activation when compared to cells cultured on polystyrene surfaces. Here, we sought to investigate the role of matrix stiffness in the regulation of macrophage activity by manipulating the mechanical properties of fibrin. We utilize a photo-initiated crosslinking method to introduce dityrosine crosslinks to a fibrin gel and confirm an increase in gel stiffness through active microrheology. We observe that matrix crosslinking elicits distinct changes in macrophage morphology, integrin expression, migration, and inflammatory activation. Macrophages cultured on a stiffer substrate exhibit greater cell spreading and expression of αM integrin. Furthermore, macrophages cultured on crosslinked fibrin exhibit increased motility. Finally, culture of macrophages on photo-crosslinked fibrin enhances their inflammatory activation compared to unmodified fibrin, suggesting that matrix crosslinking regulates the functional activation of macrophages. These findings provide insight into how the physical properties of the extracellular matrix might control macrophage behavior during inflammation and wound healing.
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Affiliation(s)
- Jessica Y Hsieh
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Mark T Keating
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Tim D Smith
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Vijaykumar S Meli
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Elliot L Botvinick
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Wendy F Liu
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
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197
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Rajani KR, Carlstrom LP, Parney IF, Johnson AJ, Warrington AE, Burns TC. Harnessing Radiation Biology to Augment Immunotherapy for Glioblastoma. Front Oncol 2019; 8:656. [PMID: 30854331 PMCID: PMC6395389 DOI: 10.3389/fonc.2018.00656] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/12/2018] [Indexed: 12/22/2022] Open
Abstract
Glioblastoma is the most common adult primary brain tumor and carries a dismal prognosis. Radiation is a standard first-line therapy, typically deployed following maximal safe surgical debulking, when possible, in combination with cytotoxic chemotherapy. For other systemic cancers, standard of care is being transformed by immunotherapies, including checkpoint-blocking antibodies targeting CTLA-4 and PD-1/PD-L1, with potential for long-term remission. Ongoing studies are evaluating the role of immunotherapies for GBM. Despite dramatic responses in some cases, randomized trials to date have not met primary outcomes. Challenges have been attributed in part to the immunologically "cold" nature of glioblastoma relative to other malignancies successfully treated with immunotherapy. Radiation may serve as a mechanism to improve tumor immunogenicity. In this review, we critically evaluate current evidence regarding radiation as a synergistic facilitator of immunotherapies through modulation of both the innate and adaptive immune milieu. Although current preclinical data encourage efforts to harness synergistic biology between radiation and immunotherapy, several practical and scientific challenges remain. Moreover, insights from radiation biology may unveil additional novel opportunities to help mobilize immunity against GBM.
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Affiliation(s)
- Karishma R. Rajani
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Lucas P. Carlstrom
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Ian F. Parney
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Aaron J. Johnson
- Department of Immunology, Mayo Clinic, Rochester, MN, United States
| | | | - Terry C. Burns
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, United States
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198
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de Carvalho Santuchi M, Dutra MF, Vago JP, Lima KM, Galvão I, de Souza-Neto FP, Morais e Silva M, Oliveira AC, de Oliveira FCB, Gonçalves R, Teixeira MM, Sousa LP, dos Santos RAS, da Silva RF. Angiotensin-(1-7) and Alamandine Promote Anti-inflammatory Response in Macrophages In Vitro and In Vivo. Mediators Inflamm 2019; 2019:2401081. [PMID: 30918468 PMCID: PMC6409041 DOI: 10.1155/2019/2401081] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/12/2018] [Accepted: 12/10/2018] [Indexed: 02/06/2023] Open
Abstract
The renin-angiotensin system (RAS) peptides play an important role in inflammation. Resolution of inflammation contributes to restore tissue homeostasis, and it is characterized by neutrophil apoptosis and their subsequent removal by macrophages, which are remarkable plastic cells involved in the pathophysiology of diverse inflammatory diseases. However, the effects of RAS peptides on different macrophage phenotypes are still emerging. Here, we evaluated the effects of angiotensin-(1-7) (Ang-(1-7)) and the most novel RAS peptide, alamandine, on resting (M0), proinflammatory M(LPS+IFN-γ), and anti-inflammatory M(IL-4) macrophage phenotypes in vitro, as well as on specific immune cell populations and macrophage subsets into the pleural cavity of LPS-induced pleurisy in mice. Our results showed that Ang-(1-7) and alamandine, through Mas and MrgD receptors, respectively, do not affect M0 macrophages but reduce the proinflammatory TNF-α, CCL2, and IL-1β transcript expression levels in LPS+IFN-γ-stimulated macrophages. Therapeutic administration of these peptides in LPS-induced inflammation in mice decreased the number of neutrophils and M1 (F4/80lowGr1+CD11bmed) macrophage frequency without affecting the other investigated macrophage subsets. Our data suggested that both Ang-(1-7) and alamandine, through their respective receptors Mas and MrgD, promote an anti-inflammatory reprogramming of M(LPS+IFN-γ)/M1 macrophages under inflammatory circumstances and potentiate the reprogramming induced by IL-4. In conclusion, our work sheds light on the emerging proresolving properties of Ang-(1-7) and alamandine, opening new avenues for the treatment of inflammatory diseases.
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Affiliation(s)
- Melissa de Carvalho Santuchi
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Miriane Fernandes Dutra
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Juliana Priscila Vago
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Kátia Maciel Lima
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Izabela Galvão
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fernando Pedro de Souza-Neto
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mario Morais e Silva
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Aline Cristina Oliveira
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Ricardo Gonçalves
- Department of Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lirlândia Pires Sousa
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Robson Augusto Souza dos Santos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rafaela Fernandes da Silva
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
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199
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Zhang L, Tan S, Liu Y, Xie H, Luo B, Wang J. In vitro inhibition of tumor growth by low-dose iron oxide nanoparticles activating macrophages. J Biomater Appl 2019; 33:935-945. [DOI: 10.1177/0885328218817939] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Macrophages as immunocyte are attracting more and more attention in cancer therapy. Our previous study observed that dimercaptosuccinic acid (DMSA)-coated Fe3O4 magnetic nanoparticles triggered comprehensive immune responses of mouse macrophages (RAW264.7 cells) and induced production of many kinds of cytokines. This study investigated the effects of Fe3O4 magnetic nanoparticles on RAW264.7 cells proliferation, migration, and inhibition of tumor growth in vitro. Fe3O4 magnetic nanoparticles had an average size of about 11 nm with good dispersibility and uniformity. Fe3O4 magnetic nanoparticles internalized efficiently into RAW264.7 cells. Through Cell Counting Kit-8 (CCK-8) detection, the proliferation of RAW264.7 cells significantly increased by the low-dose Fe3O4 magnetic nanoparticles (50 µg/mL) treatment. The results of wound-healing and Transwell assays both displayed a significant promotion of the RAW264.7 cells migratory capability compared with control group ( P<0.01). It is interesting to find that a large number of proliferated RAW264.7 cells were activated to surround quickly and attack mouse liver cancer cell (Hepa1-6) cells by Fe3O4 magnetic nanoparticles. The growth of Hepa1-6 cells was effectively inhibited according to microscope imaging and flow cytometry analysis. The inhibition may be cooperative effects of RAW264.7 cells proliferation, migration, and immune activation. The results suggest potential clinical value of low-dose iron oxide nanomaterials in cancer therapy.
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Affiliation(s)
- Ling Zhang
- School of Biomedical Engineering, Hubei University of Science and Technology, Xianning, China
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
| | - Shengwei Tan
- School of life sciences, Nantong University, Nantong, China
| | - Yingxun Liu
- School of Biomedical Engineering, Hubei University of Science and Technology, Xianning, China
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
| | - Hongmei Xie
- School of Biomedical Engineering, Hubei University of Science and Technology, Xianning, China
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
| | - Binhua Luo
- School of Pharmacy, Hubei University of Science and Technology, Xianning, China
| | - Jinke Wang
- School of Biomedical Engineering, Hubei University of Science and Technology, Xianning, China
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
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200
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Transferrin Enhances Microglial Phagocytic Capacity. Mol Neurobiol 2019; 56:6324-6340. [PMID: 30758712 DOI: 10.1007/s12035-019-1519-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/29/2019] [Indexed: 01/01/2023]
Abstract
Transferrin (Tf) is a glycoprotein playing a critical role in iron homeostasis and transport and distribution throughout the body and within tissues and cells. This molecule has been shown to accelerate the process of myelination and remyelination in the central nervous system (CNS) in vivo and induce oligodendroglial cell maturation in vitro. While the mechanisms involved in oligodendroglial precursor cell (OPC) differentiation have not been fully elucidated yet, our group has previously described the first molecular events taking place in OPC in response to extracellular Tf. Here, we show the effect of Tf on the different glial cell populations. We demonstrate that, after a CNS demyelinating injury, Tf can be incorporated by all glial cells-i.e., microglia, astrocytes, and OPC-and that, acting on microglial cells in vitro, Tf increases microglial proliferation rates and phagocytic capacity. It may be then speculated that the in vivo correlation of this process could generate a favorable microenvironment for OPC maturation and remyelination.
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