1
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Zhang G, Hu H, Yin Y, Tian M, Bu Z, Ding C, Yu S. Brucella Manipulates Host Cell Ferroptosis to Facilitate Its Intracellular Replication and Egress in RAW264.7 Macrophages. Antioxidants (Basel) 2024; 13:577. [PMID: 38790682 PMCID: PMC11118192 DOI: 10.3390/antiox13050577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Brucella virulence relies on its successful intracellular life cycle. Modulating host cell death is a strategy for Brucella to survive and replicate intracellularly. Ferroptosis is a novel regulated cell death characterized by iron-triggered excessive lipid peroxidation, which has been proven to be associated with pathogenic bacteria infection. Thus, we attempted to explore if smooth-type Brucella infection triggers host cell ferroptosis and what role it plays in Brucella infection. We assessed the effects of Brucella infection on the lactate dehydrogenase release and lipid peroxidation levels of RAW264.7 macrophages; subsequently, we determined the effect of Brucella infection on the expressions of ferroptosis defense pathways. Furthermore, we determined the role of host cell ferroptosis in the intracellular replication and egress of Brucella. The results demonstrated that Brucella M5 could induce ferroptosis of macrophages by inhibiting the GPX4-GSH axis at the late stage of infection but mitigated ferroptosis by up-regulating the GCH1-BH4 axis at the early infection stage. Moreover, elevating host cell ferroptosis decreased Brucella intracellular survival and suppressing host cell ferroptosis increased Brucella intracellular replication and egress. Collectively, Brucella may manipulate host cell ferroptosis to facilitate its intracellular replication and egress, extending our knowledge about the underlying mechanism of how Brucella completes its intracellular life cycle.
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Affiliation(s)
- Guangdong Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
- Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Harbin 150069, China;
| | - Hai Hu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
| | - Yi Yin
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
| | - Mingxing Tian
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
| | - Zhigao Bu
- Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Harbin 150069, China;
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Shengqing Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai 200241, China; (G.Z.); (H.H.); (Y.Y.); (M.T.)
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2
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Muhuitijiang B, Zhou J, Zhou R, Zhang Z, Yan G, Zheng Z, Zeng X, Zhu Y, Wu H, Gao R, Zhu T, Shi X, Tan W. Development and experimental validation of an M2 macrophage and platelet-associated gene signature to predict prognosis and immunotherapy sensitivity in bladder cancer. Cancer Sci 2024; 115:1417-1432. [PMID: 38422408 DOI: 10.1111/cas.16113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 11/20/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024] Open
Abstract
Platelets and M2 macrophages both play crucial roles in tumorigenesis, but their relationship and the prognosis value of the relative genes in bladder cancer (BLCA) remain obscure. In the present study, we found that platelets stimulated by BLCA cell lines could promote M2 macrophage polarization, and platelets were significantly associated with the infiltration of M2 macrophages in BLCA samples. Through the bioinformatic analyses, A2M, TGFB3, and MYLK, which were associated with platelets and M2 macrophages, were identified and verified in vitro and then included in the predictive model. A platelet and M2 macrophage-related gene signature was constructed to evaluate the prognosis and immunotherapeutic sensitivity, helping to guide personalized treatment and to disclose the underlying mechanisms.
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Affiliation(s)
| | - Jiawei Zhou
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ranran Zhou
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiyong Zhang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Guang Yan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zaosong Zheng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiangbo Zeng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuanchao Zhu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haowei Wu
- The First Clinical Medical College of Southern Medical University, Guangzhou, Guangdong, China
| | - Ruxi Gao
- The First Clinical Medical College of Southern Medical University, Guangzhou, Guangdong, China
| | - Tianhang Zhu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaojun Shi
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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3
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Kumar SK, Mani KP. Proinflammatory signaling mechanism of endocan in macrophages: Involvement of TLR2 mediated MAPK-NFkB pathways. Cytokine 2024; 175:156482. [PMID: 38159469 DOI: 10.1016/j.cyto.2023.156482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Endocan is an endothelial cell-specific proteoglycan that contributes to vascular dysfunction by impairing endothelial function and inducing vascular smooth muscle cell migration. However, its role in regulating macrophage inflammation, a key pathological feature of vascular dysfunction, is not well understood. In this study, we investigated the effect of endocan on macrophage inflammation to better understand its contribution to vascular dysfunction. We found that endocan upregulated pro-inflammatory cytokines including IL-1β, IL-6 and TNF-α in RAW 264.7 cells and activated MAPK/NFkB signaling pathways. Inhibiting these pathways reduced endocan-induced cytokine levels, while inhibiting TLR2 compromised the MAPK/NFkB regulation. Additionally, LPS-induced HUVEC conditioned medium stimulated cytokine levels in RAW 264.7 cells, which were reduced by endocan siRNA treatment in HUVEC. These results suggest that endocan positively regulates pro-inflammation in macrophages through the TLR2-MAPK-NFkB axis, highlighting the potential of targeting endocan to reduce inflammation in vascular dysfunction.
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Affiliation(s)
- Sarwareddy Kartik Kumar
- Vascular Research Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Krishna Priya Mani
- Vascular Research Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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4
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Tang L, Liu C, Rosenberger P. Platelet formation and activation are influenced by neuronal guidance proteins. Front Immunol 2023; 14:1206906. [PMID: 37398659 PMCID: PMC10310924 DOI: 10.3389/fimmu.2023.1206906] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 06/05/2023] [Indexed: 07/04/2023] Open
Abstract
Platelets are anucleate blood cells derived from megakaryocytes. They link the fundamental functions of hemostasis, inflammation and host defense. They undergo intracellular calcium flux, negatively charged phospholipid translocation, granule release and shape change to adhere to collagen, fibrin and each other, forming aggregates, which are key to several of their functions. In all these dynamic processes, the cytoskeleton plays a crucial role. Neuronal guidance proteins (NGPs) form attractive and repulsive signals to drive neuronal axon navigation and thus refine neuronal circuits. By binding to their target receptors, NGPs rearrange the cytoskeleton to mediate neuron motility. In recent decades, evidence has indicated that NGPs perform important immunomodulatory functions and influence platelet function. In this review, we highlight the roles of NGPs in platelet formation and activation.
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5
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Yan C, Wu H, Fang X, He J, Zhu F. Platelet, a key regulator of innate and adaptive immunity. Front Med (Lausanne) 2023; 10:1074878. [PMID: 36968817 PMCID: PMC10038213 DOI: 10.3389/fmed.2023.1074878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/14/2023] [Indexed: 03/12/2023] Open
Abstract
Platelets, anucleate blood components, represent the major cell type involved in the regulation of hemostasis and thrombosis. In addition to performing haemostatic roles, platelets can influence both innate and adaptive immune responses. In this review, we summarize the development of platelets and their functions in hemostasis. We also discuss the interactions between platelet products and innate or adaptive immune cells, including neutrophils, monocytes, macrophages, T cells, B cells and dendritic cells. Activated platelets and released molecules regulate the differentiation and function of these cells via platelet-derived receptors or secreting molecules. Platelets have dual effects on nearly all immune cells. Understanding the exact mechanisms underlying these effects will enable further application of platelet transfusion.
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Affiliation(s)
- Cheng Yan
- Department of Blood Transfusion, Nanjing Jiangning Hospital, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Haojie Wu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xianchun Fang
- Department of Blood Transfusion, Nanjing Jiangning Hospital, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Junji He
- Department of Blood Transfusion, Nanjing Jiangning Hospital, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Feng Zhu
- Department of Blood Transfusion, Nanjing Jiangning Hospital, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- *Correspondence: Feng Zhu,
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6
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Functional Phenotypes of Intraplaque Macrophages and Their Distinct Roles in Atherosclerosis Development and Atheroinflammation. Biomedicines 2022; 10:biomedicines10020452. [PMID: 35203661 PMCID: PMC8962399 DOI: 10.3390/biomedicines10020452] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 12/01/2022] Open
Abstract
Macrophages are the key inflammatory cell type involved in all stages of atherosclerosis development and progression, as demonstrated by numerous studies. Correspondingly, macrophages are currently regarded as a promising therapeutic target for the development of new treatment approaches. The macrophage population is heterogeneous and dynamic, as these cells can switch between a number of distinct functional states with pro- and anti-atherogenic activity in response to various stimuli. An atherosclerotic plaque microenvironment defined by cytokine levels, cell-to-cell interactions, lipid accumulation, hypoxia, neoangiogenesis, and intraplaque haemorrhage may guide local macrophage polarization processes within the lesion. In this review, we discuss known functional phenotypes of intraplaque macrophages and their distinct contribution to ahteroinflammation.
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7
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Khaire K, Verma U, Buch P, Patel S, Ranadive I, Balakrishnan S. Site-specific variation in the activity of COX-2 alters the pattern of wound healing in the tail and limb of northern house gecko by differentially regulating the expression of local inflammatory mediators. ZOOLOGY 2021; 148:125947. [PMID: 34333369 DOI: 10.1016/j.zool.2021.125947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/29/2021] [Accepted: 06/23/2021] [Indexed: 10/21/2022]
Abstract
The role of COX-2 induced PGE2 in the site-specific regulation of inflammatory mediators that facilitate disparate wound healing in the tail and limb of a lizard was studied by analysing their levels during various stages of healing. The activity of COX-2 and concentration of PGE2 surged during the early healing phase of tail along with the parallel rise in EP4 receptor. PGE2-EP4 interaction is corelated to early resolution (by 3 dpa) of inflammation by rising the antiinflammatory mediator IL-10. This likely causes reduction in proinflammatory mediators viz., iNOS, TNF-α, IL-6, IL-17 and IL-22. Conversely, in the limb, COX-2 derived PGE2 likely causes rise in inflammation through EP2 receptor-based signalling, as all the proinflammatory mediators stay elevated through the course of healing (till 9 dpa), while expression of IL-10 is reduced. This study brings to light the novel roles of IL-17 and IL-22 in programming wound healing. As IL-17 reduces in tail, IL-22 behaves in reparative way, causing conducive environment for scar-free wound healing. On the contrary, synergic elevation of both IL-17 and Il-22 form a micro-niche suitable for scarred wound healing in limb, thus obliterating its regenerative potential.
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Affiliation(s)
- Kashmira Khaire
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Urja Verma
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Pranav Buch
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Sonam Patel
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Isha Ranadive
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Suresh Balakrishnan
- Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India.
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8
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Kanikarla Marie P, Fowlkes NW, Afshar-Kharghan V, Martch SL, Sorokin A, Shen JP, Morris VK, Dasari A, You N, Sood AK, Overman MJ, Kopetz S, Menter DG. The Provocative Roles of Platelets in Liver Disease and Cancer. Front Oncol 2021; 11:643815. [PMID: 34367949 PMCID: PMC8335590 DOI: 10.3389/fonc.2021.643815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 06/30/2021] [Indexed: 12/12/2022] Open
Abstract
Both platelets and the liver play important roles in the processes of coagulation and innate immunity. Platelet responses at the site of an injury are rapid; their immediate activation and structural changes minimize the loss of blood. The majority of coagulation proteins are produced by the liver—a multifunctional organ that also plays a critical role in many processes: removal of toxins and metabolism of fats, proteins, carbohydrates, and drugs. Chronic inflammation, trauma, or other causes of irreversible damage to the liver can dysregulate these pathways leading to organ and systemic abnormalities. In some cases, platelet-to-lymphocyte ratios can also be a predictor of disease outcome. An example is cirrhosis, which increases the risk of bleeding and prothrombotic events followed by activation of platelets. Along with a triggered coagulation cascade, the platelets increase the risk of pro-thrombotic events and contribute to cancer progression and metastasis. This progression and the resulting tissue destruction is physiologically comparable to a persistent, chronic wound. Various cancers, including colorectal cancer, have been associated with increased thrombocytosis, platelet activation, platelet-storage granule release, and thrombosis; anti-platelet agents can reduce cancer risk and progression. However, in cancer patients with pre-existing liver disease who are undergoing chemotherapy, the risk of thrombotic events becomes challenging to manage due to their inherent risk for bleeding. Chemotherapy, also known to induce damage to the liver, further increases the frequency of thrombotic events. Depending on individual patient risks, these factors acting together can disrupt the fragile balance between pro- and anti-coagulant processes, heightening liver thrombogenesis, and possibly providing a niche for circulating tumor cells to adhere to—thus promoting both liver metastasis and cancer-cell survival following treatment (that is, with minimal residual disease in the liver).
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Affiliation(s)
- Preeti Kanikarla Marie
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Natalie W Fowlkes
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Vahid Afshar-Kharghan
- Division of Internal Medicine, Benign Hematology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Stephanie L Martch
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Alexey Sorokin
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - John Paul Shen
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Van K Morris
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Arvind Dasari
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Nancy You
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Michael J Overman
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Scott Kopetz
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - David George Menter
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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9
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Bourne JH, Beristain-Covarrubias N, Zuidscherwoude M, Campos J, Di Y, Garlick E, Colicchia M, Terry LV, Thomas SG, Brill A, Bayry J, Watson SP, Rayes J. CLEC-2 Prevents Accumulation and Retention of Inflammatory Macrophages During Murine Peritonitis. Front Immunol 2021; 12:693974. [PMID: 34163489 PMCID: PMC8215360 DOI: 10.3389/fimmu.2021.693974] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/20/2021] [Indexed: 11/29/2022] Open
Abstract
Platelets play a key role in the development, progression and resolution of the inflammatory response during sterile inflammation and infection, although the mechanism is not well understood. Here we show that platelet CLEC-2 reduces tissue inflammation by regulating inflammatory macrophage activation and trafficking from the inflamed tissues. The immune regulatory function of CLEC-2 depends on the expression of its ligand, podoplanin, upregulated on inflammatory macrophages and is independent of platelet activation and secretion. Mechanistically, platelet CLEC-2 and also recombinant CLEC-2-Fc accelerates actin rearrangement and macrophage migration by increasing the expression of podoplanin and CD44, and their interaction with the ERM proteins. During ongoing inflammation, induced by lipopolysaccharide, treatment with rCLEC-2-Fc induces the rapid emigration of peritoneal inflammatory macrophages to mesenteric lymph nodes, thus reducing the accumulation of inflammatory macrophages in the inflamed peritoneum. This is associated with a significant decrease in pro-inflammatory cytokine, TNF-α and an increase in levels of immunosuppressive, IL-10 in the peritoneum. Increased podoplanin expression and actin remodelling favour macrophage migration towards CCL21, a soluble ligand for podoplanin and chemoattractant secreted by lymph node lymphatic endothelial cells. Macrophage efflux to draining lymph nodes induces T cell priming. In conclusion, we show that platelet CLEC-2 reduces the inflammatory phenotype of macrophages and their accumulation, leading to diminished tissue inflammation. These immunomodulatory functions of CLEC-2 are a novel strategy to reduce tissue inflammation and could be therapeutically exploited through rCLEC-2-Fc, to limit the progression to chronic inflammation.
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Affiliation(s)
- Joshua H. Bourne
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Nonantzin Beristain-Covarrubias
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Malou Zuidscherwoude
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands, United Kingdom
| | - Joana Campos
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Ying Di
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Evelyn Garlick
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands, United Kingdom
| | - Martina Colicchia
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Lauren V. Terry
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Steven G. Thomas
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands, United Kingdom
| | - Alexander Brill
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Department of Pathophysiology, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Jagadeesh Bayry
- Institut National de la Santé et de la Recherche Médicale, Centre de Recherche des Cordeliers, Equipe - Immunopathologie et Immunointervention Thérapeutique, Sorbonne Université, Université de Paris, Paris, France
- Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Kerala, India
| | - Steve P. Watson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands, United Kingdom
| | - Julie Rayes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands, United Kingdom
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10
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Lin F, Zhang S, Liu X, Wu M. RETRACTED: Mouse bone marrow derived mesenchymal stem cells-secreted exosomal microRNA-125b-5p suppresses atherosclerotic plaque formation via inhibiting Map4k4. Life Sci 2021; 274:119249. [PMID: 33652034 DOI: 10.1016/j.lfs.2021.119249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/16/2021] [Accepted: 01/25/2021] [Indexed: 02/08/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concern was raised about the reliability of the Western blot results in Figs. 2D and 4E, which appear to have the same eyebrow shaped phenotype as many other publications tabulated here (https://docs.google.com/spreadsheets/d/149EjFXVxpwkBXYJOnOHb6RhAqT4a2llhj9LM60MBffM/edit#gid=0). The journal requested the corresponding author comment on these concerns and provide the raw data. However the authors were not able to satisfactorily fulfil this request and therefore the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Feng Lin
- Department of Cardiology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518000, Guangdong, China.
| | - Suihao Zhang
- Department of Cardiology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518000, Guangdong, China
| | - Xia Liu
- Department of Cardiology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518000, Guangdong, China
| | - Meishan Wu
- Department of Cardiology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518000, Guangdong, China
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11
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Weinstock A, Rahman K, Yaacov O, Nishi H, Menon P, Nikain CA, Garabedian ML, Pena S, Akbar N, Sansbury BE, Heffron SP, Liu J, Marecki G, Fernandez D, Brown EJ, Ruggles KV, Ramsey SA, Giannarelli C, Spite M, Choudhury RP, Loke P, Fisher EA. Wnt signaling enhances macrophage responses to IL-4 and promotes resolution of atherosclerosis. eLife 2021; 10:e67932. [PMID: 33720008 PMCID: PMC7994001 DOI: 10.7554/elife.67932] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022] Open
Abstract
Atherosclerosis is a disease of chronic inflammation. We investigated the roles of the cytokines IL-4 and IL-13, the classical activators of STAT6, in the resolution of atherosclerosis inflammation. Using Il4-/-Il13-/- mice, resolution was impaired, and in control mice, in both progressing and resolving plaques, levels of IL-4 were stably low and IL-13 was undetectable. This suggested that IL-4 is required for atherosclerosis resolution, but collaborates with other factors. We had observed increased Wnt signaling in macrophages in resolving plaques, and human genetic data from others showed that a loss-of-function Wnt mutation was associated with premature atherosclerosis. We now find an inverse association between activation of Wnt signaling and disease severity in mice and humans. Wnt enhanced the expression of inflammation resolving factors after treatment with plaque-relevant low concentrations of IL-4. Mechanistically, activation of the Wnt pathway following lipid lowering potentiates IL-4 responsiveness in macrophages via a PGE2/STAT3 axis.
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Affiliation(s)
- Ada Weinstock
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Karishma Rahman
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Or Yaacov
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Hitoo Nishi
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Prashanthi Menon
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Cyrus A Nikain
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Michela L Garabedian
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Stephanie Pena
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Naveed Akbar
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of OxfordOxfordUnited Kingdom
| | - Brian E Sansbury
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital and Harvard Medical SchoolBostonUnited States
| | - Sean P Heffron
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
- NYU Center for the Prevention of Cardiovascular Disease, New York University Grossman School of MedicineNew YorkUnited States
| | - Jianhua Liu
- Department of Surgery, Mount Sinai School of MedicineNew YorkUnited States
| | - Gregory Marecki
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Dawn Fernandez
- Cardiovascular Research Center, Department of Medicine, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Emily J Brown
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
| | - Kelly V Ruggles
- Division of Translational Medicine, Department of Medicine, New York University Langone Health, Institute for Systems Genetics, New York University Grossman School of MedicineNew YorkUnited States
| | - Stephen A Ramsey
- Department of Biomedical Sciences, School of Electrical Engineering and Computer Science, Oregon State UniversityCorvallisUnited States
| | - Chiara Giannarelli
- Cardiovascular Research Center, Department of Medicine, Icahn School of Medicine at Mount SinaiNew YorkUnited States
- The Precision Immunology Institute, Icahn School of Medicine at Mount SinaiNew YorkUnited States
- Department of Microbiology (Parasitology), New York University School of MedicineNew YorkUnited States
| | - Matthew Spite
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital and Harvard Medical SchoolBostonUnited States
| | - Robin P Choudhury
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of OxfordOxfordUnited Kingdom
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount SinaiNew YorkUnited States
| | - P'ng Loke
- Acute Vascular Imaging Centre, Radcliffe Department of Medicine, University of OxfordOxfordUnited Kingdom
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of HealthBethesdaUnited States
| | - Edward A Fisher
- Department of Medicine, Leon H. Charney Division of Cardiology, Cardiovascular Research Program, New York University Grossman School of MedicineNew YorkUnited States
- NYU Center for the Prevention of Cardiovascular Disease, New York University Grossman School of MedicineNew YorkUnited States
- Departments of Cell Biology and Microbiology, New York University Grossman School of MedicineNew YorkUnited States
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12
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Hosseini Z, Marinello M, Decker C, Sansbury BE, Sadhu S, Gerlach BD, Bossardi Ramos R, Adam AP, Spite M, Fredman G. Resolvin D1 Enhances Necroptotic Cell Clearance Through Promoting Macrophage Fatty Acid Oxidation and Oxidative Phosphorylation. Arterioscler Thromb Vasc Biol 2021; 41:1062-1075. [PMID: 33472399 DOI: 10.1161/atvbaha.120.315758] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Plaque necrosis is a key feature of defective resolution in atherosclerosis. Recent evidence suggests that necroptosis promotes plaque necrosis; therefore, we sought to determine how necroptotic cells (NCs) impact resolution programs in plaques. Approach and Results: To investigate the role(s) of necroptosis in advanced atherosclerosis, we used mice deficient of Mlkl, an effector of necroptosis. Mlkl-/- mice that were injected with a gain-of-function mutant PCSK9 (AAV8-gof-PCSK9) and fed a Western diet for 16 weeks, showed significantly less plaque necrosis, increased fibrous caps and improved efferocytosis compared with AAV8-gof-PCSK9 injected wt controls. Additionally, hypercholesterolemic Mlkl-/- mice had a significant increase in proresolving mediators including resolvin D1 (RvD1) and a decrease in prostanoids including thromboxane in plaques and in vitro. We found that exuberant thromboxane released by NCs impaired the clearance of both apoptotic cells and NCs through disruption of oxidative phosphorylation in macrophages. Moreover, we found that NCs did not readily synthesize RvD1 and that exogenous administration of RvD1 to macrophages rescued NC-induced defective efferocytosis. RvD1 also enhanced the uptake of NCs via the activation of p-AMPK (AMP-activated protein kinase), increased fatty acid oxidation, and enhanced oxidative phosphorylation in macrophages. CONCLUSIONS These results suggest that NCs derange resolution by limiting key SPMs and impairing the efferocytic repertoire of macrophages. Moreover, these findings provide a molecular mechanism for RvD1 in directing proresolving metabolic programs in macrophages and further suggests RvD1 as a potential therapeutic strategy to limit NCs in tissues. Graphic Abstract: A graphic abstract is available for this article.
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Affiliation(s)
- Zeinab Hosseini
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Michael Marinello
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Christa Decker
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Brian E Sansbury
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (B.E.S., M.S.)
| | - Sudeshna Sadhu
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Brennan D Gerlach
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Ramon Bossardi Ramos
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Alejandro P Adam
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
| | - Matthew Spite
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (B.E.S., M.S.)
| | - Gabrielle Fredman
- The Department of Molecular and Cellular Physiology, Albany Medical College, NY (Z.H., M.M., C.D., S.S., B.D.G., R.B.R., A.P.A., G.F.)
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13
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Bhattacharyya R, Iyer P, Phua GC, Lee JH. The Interplay Between Coagulation and Inflammation Pathways in COVID-19-Associated Respiratory Failure: A Narrative Review. Pulm Ther 2020; 6:215-231. [PMID: 32844302 PMCID: PMC7446744 DOI: 10.1007/s41030-020-00126-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Indexed: 02/08/2023] Open
Abstract
The novel coronavirus disease (COVID-19) pandemic has caused an unprecedented worldwide socio-economic and health impact. There is increasing evidence that a combination of inflammation and hypercoagulable state are the main mechanisms of respiratory failure in these patients. This narrative review aims to summarize currently available evidence on the complex interplay of immune dysregulation, hypercoagulability, and thrombosis in the pathogenesis of respiratory failure in COVID-19 disease. In addition, we will describe the experience of anticoagulation and anti-inflammatory strategies that have been tested. Profound suppression of the adaptive and hyperactivity of innate immune systems with macrophage activation appears to be a prominent feature in this infection. Immune dysregulation together with endotheliitis and severe hypercoagulability results in thromboinflammation and microvascular thrombosis in the pulmonary vasculature leading to severe respiratory distress. Currently, some guidelines recommend the use of prophylactic low molecular weight heparin in all hospitalized patients, with intermediate dose prophylaxis in those needing intensive care, and the use of therapeutic anticoagulation in patients with proven or suspected thrombosis. Strong recommendations cannot be made until this approach is validated by trial results. To target the inflammatory cascade, low-dose dexamethasone appears to be helpful in moderate to severe cases and trials with anti-interleukin agents (e.g., tocilizumab, anakinra, siltuximab) and non-steroidal anti-inflammatory drugs are showing early promising results. Potential newer agents (e.g., Janus kinase inhibitor such as ruxolitinib, baricitinib, fedratinib) are likely to be investigated in clinical trials. Unfortunately, current trials are mostly examining these agents in isolation and there may be a significant delay before evidence-based practice can be implemented. It is plausible that a combination of anti-viral drugs together with anti-inflammatory and anti-coagulation medicines will be the most successful strategy in managing severely affected patients with COVID-19.
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Affiliation(s)
- Rajat Bhattacharyya
- Haematology-Oncology Service, Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore, Singapore.
| | - Prasad Iyer
- Haematology-Oncology Service, Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore, Singapore.,Duke-NUS Medical School, Singapore, Singapore
| | - Ghee Chee Phua
- Duke-NUS Medical School, Singapore, Singapore.,Singapore General Hospital, Singapore, Singapore
| | - Jan Hau Lee
- Duke-NUS Medical School, Singapore, Singapore.,Intensive Care Unit, Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore, Singapore
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