1
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Li X, Poire A, Jeong KJ, Zhang D, Ozmen TY, Chen G, Sun C, Mills GB. C5aR1 inhibition reprograms tumor associated macrophages and reverses PARP inhibitor resistance in breast cancer. Nat Commun 2024; 15:4485. [PMID: 38802355 PMCID: PMC11130309 DOI: 10.1038/s41467-024-48637-y] [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: 11/21/2022] [Accepted: 05/09/2024] [Indexed: 05/29/2024] Open
Abstract
Although Poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) have been approved in multiple diseases, including BRCA1/2 mutant breast cancer, responses are usually transient requiring the deployment of combination therapies for optimal efficacy. Here we thus explore mechanisms underlying sensitivity and resistance to PARPi using two intrinsically PARPi sensitive (T22) and resistant (T127) syngeneic murine breast cancer models in female mice. We demonstrate that tumor associated macrophages (TAM) potentially contribute to the differential sensitivity to PARPi. By single-cell RNA-sequencing, we identify a TAM_C3 cluster, expressing genes implicated in anti-inflammatory activity, that is enriched in PARPi resistant T127 tumors and markedly decreased by PARPi in T22 tumors. Rps19/C5aR1 signaling is selectively elevated in TAM_C3. C5aR1 inhibition or transferring C5aR1hi cells increases and decreases PARPi sensitivity, respectively. High C5aR1 levels in human breast cancers are associated with poor responses to immune checkpoint blockade. Thus, targeting C5aR1 may selectively deplete pro-tumoral macrophages and engender sensitivity to PARPi and potentially other therapies.
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Affiliation(s)
- Xi Li
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA.
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Alfonso Poire
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Kang Jin Jeong
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Dong Zhang
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Tugba Yildiran Ozmen
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Gang Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaoyang Sun
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gordon B Mills
- Division of Oncological Sciences Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
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2
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Wiggins DA, Maxwell JN, Nelson DE. Exploring the role of CITED transcriptional regulators in the control of macrophage polarization. Front Immunol 2024; 15:1365718. [PMID: 38646545 PMCID: PMC11032013 DOI: 10.3389/fimmu.2024.1365718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Macrophages are tissue resident innate phagocytic cells that take on contrasting phenotypes, or polarization states, in response to the changing combination of microbial and cytokine signals at sites of infection. During the opening stages of an infection, macrophages adopt the proinflammatory, highly antimicrobial M1 state, later shifting to an anti-inflammatory, pro-tissue repair M2 state as the infection resolves. The changes in gene expression underlying these transitions are primarily governed by nuclear factor kappaB (NF-κB), Janus kinase (JAK)/signal transducer and activation of transcription (STAT), and hypoxia-inducible factor 1 (HIF1) transcription factors, the activity of which must be carefully controlled to ensure an effective yet spatially and temporally restricted inflammatory response. While much of this control is provided by pathway-specific feedback loops, recent work has shown that the transcriptional co-regulators of the CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxy-terminal domain (CITED) family serve as common controllers for these pathways. In this review, we describe how CITED proteins regulate polarization-associated gene expression changes by controlling the ability of transcription factors to form chromatin complexes with the histone acetyltransferase, CBP/p300. We will also cover how differences in the interactions between CITED1 and 2 with CBP/p300 drive their contrasting effects on pro-inflammatory gene expression.
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Affiliation(s)
| | | | - David E. Nelson
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN, United States
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3
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Chen SJ, Hashimoto K, Fujio K, Hayashi K, Paul SK, Yuzuriha A, Qiu WY, Nakamura E, Kanashiro MA, Kabata M, Nakamura S, Sugimoto N, Kaneda A, Yamamoto T, Saito H, Takayama N, Eto K. A let-7 microRNA-RALB axis links the immune properties of iPSC-derived megakaryocytes with platelet producibility. Nat Commun 2024; 15:2588. [PMID: 38519457 PMCID: PMC10960040 DOI: 10.1038/s41467-024-46605-0] [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: 07/06/2023] [Accepted: 03/04/2024] [Indexed: 03/25/2024] Open
Abstract
We recently achieved the first-in-human transfusion of induced pluripotent stem cell-derived platelets (iPSC-PLTs) as an alternative to standard transfusions, which are dependent on donors and therefore variable in supply. However, heterogeneity characterized by thrombopoiesis-biased or immune-biased megakaryocytes (MKs) continues to pose a bottleneck against the standardization of iPSC-PLT manufacturing. To address this problem, here we employ microRNA (miRNA) switch biotechnology to distinguish subpopulations of imMKCLs, the MK cell lines producing iPSC-PLTs. Upon miRNA switch-based screening, we find imMKCLs with lower let-7 activity exhibit an immune-skewed transcriptional signature. Notably, the low activity of let-7a-5p results in the upregulation of RAS like proto-oncogene B (RALB) expression, which is crucial for the lineage determination of immune-biased imMKCL subpopulations and leads to the activation of interferon-dependent signaling. The dysregulation of immune properties/subpopulations, along with the secretion of inflammatory cytokines, contributes to a decline in the quality of the whole imMKCL population.
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Affiliation(s)
- Si Jing Chen
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
- Department of Regenerative Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kazuya Hashimoto
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Kosuke Fujio
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Karin Hayashi
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Sudip Kumar Paul
- Department of Regenerative Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akinori Yuzuriha
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Wei-Yin Qiu
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Emiri Nakamura
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | | | - Mio Kabata
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Sou Nakamura
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Naoshi Sugimoto
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takuya Yamamoto
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan
- Medical-risk Avoidance Based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto, Japan
| | - Hirohide Saito
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.
| | - Naoya Takayama
- Department of Regenerative Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Koji Eto
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.
- Department of Regenerative Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.
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4
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Pestal K, Slayden LC, Barton GM. Krüppel-like Factor (KLF) family members control expression of genes required for serous cavity and alveolar macrophage identities. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.28.582578. [PMID: 38464159 PMCID: PMC10925242 DOI: 10.1101/2024.02.28.582578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Tissue-resident macrophages adopt distinct gene expression profiles and exhibit functional specialization based on their tissue of residence. Recent studies have begun to define the signals and transcription factors that induce these identities. Here we describe an unexpected and specific role for the broadly expressed transcription factor Kruppel-like Factor 2 (KLF2) in the development of embryonically derived Large Cavity Macrophages (LCM) in the serous cavities. KLF2 not only directly regulates the transcription of genes previously shown to specify LCM identity, such as retinoic acid receptors and GATA6, but also is required for induction of many other transcripts that define the identity of these cells. We identify a similar role for KLF4 in regulating the identity of alveolar macrophages in the lung. These data demonstrate that broadly expressed transcription factors, such as Group 2 KLFs, can play important roles in the specification of distinct identities of tissue-resident macrophages.
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Affiliation(s)
- Kathleen Pestal
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Leianna C Slayden
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley CA 94720, USA
| | - Gregory M Barton
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley CA 94720, USA
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5
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Wu G, Wen X, Kuang R, Lui KW, He B, Li G, Zhu Z. Roles of Macrophages and Their Interactions with Schwann Cells After Peripheral Nerve Injury. Cell Mol Neurobiol 2023; 44:11. [PMID: 38150045 DOI: 10.1007/s10571-023-01442-5] [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: 06/18/2023] [Accepted: 12/02/2023] [Indexed: 12/28/2023]
Abstract
The adult peripheral nervous system has a significant ability for regeneration compared to the central nervous system. This is related to the unique neuroimmunomodulation after peripheral nerve injury (PNI). Unlike the repair of other tissues after injury, Schwann cells (SCs) respond immediately to the trauma and send out signals to precisely recruit macrophages to the injured site. Then, macrophages promote the degradation of the damaged myelin sheath by phagocytosis of local debris. At the same time, macrophages and SCs jointly secrete various cytokines to reconstruct a microenvironment suitable for nerve regeneration. This unique pathophysiological process associated with macrophages provides important targets for the repair and treatment of PNI, as well as an important reference for guiding the repair of other nerve injuries. To understand these processes more systematically, this paper describes the characteristics of macrophage activation and metabolism in PNI, discusses the underlying molecular mechanism of interaction between macrophages and SCs, and reviews the latest research progress of crosstalk regulation between macrophages and SCs. These concepts and therapeutic strategies are summarized to provide a reference for the more effective use of macrophages in the repair of PNI.
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Affiliation(s)
- Guanggeng Wu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China
| | - Xiaoyue Wen
- Joint and Orthopedic Trauma, Department of Orthopedics, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China
| | - Rui Kuang
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China
| | - KoonHei Winson Lui
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China
- Department of Plastic and Cosmetic Surgery, Liwan's People Hospital of Guangzhou, Guangzhou, 510370, Guangdong, China
| | - Bo He
- Joint and Orthopedic Trauma, Department of Orthopedics, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China
| | - Ge Li
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510100, China.
- Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Medical Research Center, Guangdong Provincial People's Hospital(Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510100, China.
- Guangdong Provincial People's Hospital, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, 510100, Guangdong, China.
| | - Zhaowei Zhu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510100, Guangdong, China.
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6
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Leary JR, Bacher R. Interpretable trajectory inference with single-cell Linear Adaptive Negative-binomial Expression (scLANE) testing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.19.572477. [PMID: 38187622 PMCID: PMC10769309 DOI: 10.1101/2023.12.19.572477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
The rapid proliferation of trajectory inference methods for single-cell RNA-seq data has allowed researchers to investigate complex biological processes by examining underlying gene expression dynamics. After estimating a latent cell ordering, statistical models are used to determine which genes exhibit changes in expression that are significantly associated with progression through the biological trajectory. While a few techniques for performing trajectory differential expression exist, most rely on the flexibility of generalized additive models in order to account for the inherent nonlinearity of changes in gene expression. As such, the results can be difficult to interpret, and biological conclusions often rest on subjective visual inspections of the most dynamic genes. To address this challenge, we propose scLANE testing, which is built around an interpretable generalized linear model and handles nonlinearity with basis splines chosen empirically for each gene. In addition, extensions to estimating equations and mixed models allow for reliable trajectory testing under complex experimental designs. After validating the accuracy of scLANE under several different simulation scenarios, we apply it to a set of diverse biological datasets and display its ability to provide novel biological information when used downstream of both pseudotime and RNA velocity estimation methods.
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Affiliation(s)
- Jack R. Leary
- Department of Biostatistics, College of Public Health and Health Professions, University of Florida, Gainesville, FL 32610, USA
| | - Rhonda Bacher
- Department of Biostatistics, College of Public Health and Health Professions, University of Florida, Gainesville, FL 32610, USA
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7
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Arab I, Park J, Shin JJ, Shin HS, Suk K, Lee WH. Macrophage lncRNAs in cancer development: Long-awaited therapeutic targets. Biochem Pharmacol 2023; 218:115890. [PMID: 37884197 DOI: 10.1016/j.bcp.2023.115890] [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: 10/06/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
In the tumor microenvironment, the interplay among macrophages, cancer cells, and endothelial cells is multifaceted. Tumor-associated macrophages (TAMs), which often exhibit an M2 phenotype, contribute to tumor growth and angiogenesis, while cancer cells and endothelial cells reciprocally influence macrophage behavior. This complex interrelationship highlights the importance of targeting these interactions for the development of novel cancer therapies aimed at disrupting tumor progression and angiogenesis. Accumulating evidence underscores the indispensable involvement of lncRNAs in shaping macrophage functionality and contributing to the development of cancer. Animal studies have further validated the therapeutic potential of manipulating macrophage lncRNA activity to ameliorate disease severity and reduce morbidity rates. This review provides a survey of our current understanding of macrophage-associated lncRNAs, with a specific emphasis on their molecular targets and their regulatory impact on cancer progression. These lncRNAs predominantly govern macrophage polarization, favoring the dominance of M2 macrophages or TAMs. Exosomes or extracellular vesicles mediate lncRNA transfer between macrophages and cancer cells, affecting cellular functions of each other. Moreover, this review presents therapeutic strategies targeting cancer-associated lncRNAs. The insights and findings presented in this review pertaining to macrophage lncRNAs can offer valuable information for the development of treatments against cancer.
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Affiliation(s)
- Imene Arab
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jeongkwang Park
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jae-Joon Shin
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyeung-Seob Shin
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science & Engineering Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Won-Ha Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea.
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8
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Luckner B, Essfeld F, Ayobahan SU, Richling E, Eilebrecht E, Eilebrecht S. Transcriptomic profiling of TLR-7-mediated immune-challenge in zebrafish embryos in the presence and absence of glucocorticoid-induced immunosuppression. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115570. [PMID: 37844410 DOI: 10.1016/j.ecoenv.2023.115570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/28/2023] [Accepted: 10/08/2023] [Indexed: 10/18/2023]
Abstract
Although numerous studies imply a correlation between chemical contamination and an impaired immunocompetence of wildlife populations, the assessment of immunomodulatory modes of action is currently not covered in the regulatory requirements for the approval of new substances. This is not least due to the complexity of the immune system and a lack of standardised methods and validated biomarkers. To tackle this issue, in this study, the transcriptomic profiles of zebrafish embryos were analysed in response to the immunosuppressive compound clobetasol propionate, a synthetic glucocorticoid, and/or the immunostimulatory compound imiquimod (IMQ), a TLR-7 agonist. Using IMQ, known for its potential to induce psoriasis-like effects in mice and human, this study additionally aimed at evaluating the usability of the zebrafish embryo model as an alternative and 3R conform system for the IMQ-induced psoriasis mouse model. Our study substantiates the suitability of previously proposed genes as possible biomarkers for immunotoxicity, such as socs3, nfkbia, anxa1c, fkbp5 and irg1l. Likewise, however, our findings indicate that these genes may be less suitable to distinguish a suppressive from stimulating fashion of action. In contrast, based on a differential regulation in opposite direction in response to both compounds, krt17, rtn4a, and1, smhyc1 and gmpr were identified as potential novel biomarkers with said power to differentiate. Observed IMQ-induced alterations in the expression of genes previously associated with the pathogenesis of psoriasis such as krt17, nfkbia, parp1, pparg, nfil3-6, per2, stat4, klf2, rtn4a, anxa1c and nr1d2 indicate the inducibility of psoriatic effects in the zebrafish embryo. Our work contributes to the establishment of an approach for a 3R-compliant investigation of immunotoxic mechanisms of action in aquatic vertebrates. The validated and newly identified biomarker candidates of specific immunotoxic effects can be used in future studies in the context of environmental hazard assessment of substances or also for human-relevant immunotoxicological questions.
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Affiliation(s)
- Benedikt Luckner
- Department Ecotoxicogenomics, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany
| | - Fabian Essfeld
- Department Ecotoxicogenomics, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany; Computational Biology, Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | - Steve U Ayobahan
- Department Ecotoxicogenomics, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany
| | - Elke Richling
- Food Chemistry and Toxicology, Department of Chemistry, RPTU Kaiserslautern-Landau, Germany
| | - Elke Eilebrecht
- Department Ecotoxicology, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany
| | - Sebastian Eilebrecht
- Department Ecotoxicogenomics, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany.
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9
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He Y, Liu T. Oxidized low-density lipoprotein regulates macrophage polarization in atherosclerosis. Int Immunopharmacol 2023; 120:110338. [PMID: 37210916 DOI: 10.1016/j.intimp.2023.110338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Atherosclerosis is the pathological basis of acute cardiovascular and cerebrovascular diseases. Oxidized LDL has been recognized as a major atherogenic factor in the vessel wall for decades. A growing body of evidence suggests that oxidized LDL modulates macrophage phenotypes in atherosclerosis. This article reviews the research progress on the regulation of macrophage polarization by oxidized LDL. Mechanistically, oxidized LDL induces macrophage polarization via cell signaling, metabolic reprogramming, epigenetic regulation, and intercellular regulation. This review is expected to provide new targets for the treatment of atherosclerosis.
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Affiliation(s)
- Yonghang He
- The Second Clinical Medical College, Guangdong Medical University, Dongguan, 523808, China
| | - Tingting Liu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, No. 42 Jiaoping Road, Tangxia Town, Dongguan City, Guangdong Province 523710, China; The Second Clinical Medical College, Guangdong Medical University, Dongguan, 523808, China.
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10
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Suen HC, Rao S, Luk ACS, Zhang R, Yang L, Qi H, So HC, Hobbs RM, Lee TL, Liao J. The single-cell chromatin accessibility landscape in mouse perinatal testis development. eLife 2023; 12:e75624. [PMID: 37096870 PMCID: PMC10174692 DOI: 10.7554/elife.75624] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 04/24/2023] [Indexed: 04/26/2023] Open
Abstract
Spermatogenesis depends on an orchestrated series of developing events in germ cells and full maturation of the somatic microenvironment. To date, the majority of efforts to study cellular heterogeneity in testis has been focused on single-cell gene expression rather than the chromatin landscape shaping gene expression. To advance our understanding of the regulatory programs underlying testicular cell types, we analyzed single-cell chromatin accessibility profiles in more than 25,000 cells from mouse developing testis. We showed that single-cell sequencing assay for transposase-accessible chromatin (scATAC-Seq) allowed us to deconvolve distinct cell populations and identify cis-regulatory elements (CREs) underlying cell-type specification. We identified sets of transcription factors associated with cell type-specific accessibility, revealing novel regulators of cell fate specification and maintenance. Pseudotime reconstruction revealed detailed regulatory dynamics coordinating the sequential developmental progressions of germ cells and somatic cells. This high-resolution dataset also unveiled previously unreported subpopulations within both the Sertoli and Leydig cell groups. Further, we defined candidate target cell types and genes of several genome-wide association study (GWAS) signals, including those associated with testosterone levels and coronary artery disease. Collectively, our data provide a blueprint of the 'regulon' of the mouse male germline and supporting somatic cells.
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Affiliation(s)
- Hoi Ching Suen
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongHong Kong
| | - Shitao Rao
- School of Medical Technology and Engineering, Fujian Medical UniversityFujianChina
- Cancer Biology and Experimental Therapeutics Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongChina
| | - Alfred Chun Shui Luk
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongHong Kong
| | - Ruoyu Zhang
- Cancer Biology and Experimental Therapeutics Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongChina
| | - Lele Yang
- Guangzhou Regenerative Medicine and Health Bioland Laboratory, Guangzhou Institutes of Biomedicine and HealthGuangzhouChina
| | - Huayu Qi
- Guangzhou Regenerative Medicine and Health Bioland Laboratory, Guangzhou Institutes of Biomedicine and HealthGuangzhouChina
| | - Hon Cheong So
- Cancer Biology and Experimental Therapeutics Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongChina
| | - Robin M Hobbs
- Germline Stem Cell Biology Laboratory, Centre for Reproductive Health, Hudson Institute of Medical ResearchMelbourneAustralia
| | - Tin-lap Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongHong Kong
| | - Jinyue Liao
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, ShatinHong KongHong Kong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, New TerritoriesHong KongChina
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11
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Abdollahi E, Johnston TP, Ghaneifar Z, Vahedi P, Goleij P, Azhdari S, Moghaddam AS. Immunomodulatory Therapeutic Effects of Curcumin on M1/M2 Macrophage Polarization in Inflammatory Diseases. Curr Mol Pharmacol 2023; 16:2-14. [PMID: 35331128 DOI: 10.2174/1874467215666220324114624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 07/02/2021] [Accepted: 08/16/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Due to their plasticity, macrophages exert critical effects on both promoting and suppressing inflammatory processes. Pathologic inflammatory conditions are frequently correlated with dynamic alterations in macrophage activation, with classically activated M1 cells associated with the promotion and maintenance of inflammation and M2 cells being linked to the resolution or smouldering of chronic inflammation. Inflammation deputes a common feature of various chronic diseases and the direct involvement in the insurgence and development of these conditions. Macrophages participate in an autoregulatory loop characterizing the inflammatory process, as they produce a wide range of biologically active mediators that exert either deleterious or beneficial effects during the inflammation. Therefore, balancing the favorable ratios of M1/M2 macrophages can help ameliorate the inflammatory landscape of pathologic conditions. Curcumin is a component of turmeric with many pharmacological properties. OBJECTIVE Recent results from both in-vivo and in-vitro studies have indicated that curcumin can affect polarization and/or functions of macrophage subsets in the context of inflammation-related diseases. There is no comprehensive review of the impact of curcumin on cytokines involved in macrophage polarization in the context of inflammatory diseases. The present review will cover some efforts to explore the underlying molecular mechanisms by which curcumin modulates the macrophage polarization in distant pathological inflammatory conditions, such as cancer, autoimmunity, renal inflammation, stroke, atherosclerosis, and macrophage-driven pathogenesis. RESULTS The accumulation of the findings from in vitro and in vivo experimental studies suggests that curcumin beneficially influences M1 and M2 macrophages in a variety of inflammatory diseases with unfavorable macrophage activation. CONCLUSION Curcumin not only enhances anti-tumor immunity (via shifting M polarization towards M1 phenotype and/or up-regulation of M1 markers expression) but ameliorates inflammatory diseases, including autoimmune diseases (experimental autoimmune myocarditis and Behcet's disease), nephropathy, chronic serum sickness, stroke, and atherosclerosis.
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Affiliation(s)
- Elham Abdollahi
- Department of Gynecology, Woman Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Immunology and Allergy, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thomas P Johnston
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Missouri, USA
| | - Zahra Ghaneifar
- Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parviz Vahedi
- Department of Anatomical Sciences, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Pouya Goleij
- Department of Genetics, Faculty of Biology, Sana Institute of Higher Education, Sari, Iran
| | - Sara Azhdari
- Department of Anatomy and Embryology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Abbas Shapouri Moghaddam
- Department of Immunology, Bu-Ali Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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12
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Sharma P, Karnam K, Mahale A, Sedmaki K, Krishna Venuganti V, Kulkarni OP. HDAC5 RNA interference ameliorates acute renal injury by upregulating KLF2 and inhibiting NALP3 expression in a mouse model of oxalate nephropathy. Int Immunopharmacol 2022; 112:109264. [DOI: 10.1016/j.intimp.2022.109264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/31/2022] [Accepted: 09/16/2022] [Indexed: 11/30/2022]
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13
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Zhai D, Wang W, Ye Z, Xue K, Chen G, Hu S, Yan Z, Guo Y, Wang F, Li X, Xiang A, Li X, Lu Z, Wang L. QKI degradation in macrophage by RNF6 protects mice from MRSA infection via enhancing PI3K p110β dependent autophagy. Cell Biosci 2022; 12:154. [PMID: 36088389 PMCID: PMC9464412 DOI: 10.1186/s13578-022-00865-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/01/2022] [Indexed: 11/10/2022] Open
Abstract
Background Sepsis is a fatal condition commonly caused by Methicillin-resistant Staphylococcus aureus (MRSA) with a high death rate. Macrophages can protect the host from various microbial pathogens by recognizing and eliminating them. Earlier we found that Quaking (QKI), an RNA binding protein (RBP), was involved in differentiation and polarization of macrophages. However, the role of QKI in sepsis caused by pathogenic microbes, specifically MRSA, is unclear. This study aimed to investigate the role of QKI in regulation of host–pathogen interaction in MRSA-induced sepsis and explored the underlying mechanisms. Methods Transmission electron microscope and immunofluorescence were used to observe the autophagy level in macrophages. Real-time PCR and western blot were used to analyzed the expression of mRNA and protein respectively. The potential protein interaction was analyzed by iTRAQ mass spectrometry and Immunoprecipitation. RNA fluorescence in situ hybridization, dual-luciferase reporter assay and RNA immunoprecipitation were used to explore the mechanism of QKI regulating mRNA of PI3K-p110β. Results The mRNA level of QKI was aberrantly decreased in monocytes and PBMCs of septic patients with the increasing level of plasma procalcitonin (PCT). Then the mice with myeloid specific knockout of QKI was challenged with MRSA or Cecal Ligation and Puncture (CLP). Mice in these two models displayed higher survival rates and lower bacterial loads. Mechanistically, QKI deletion promoted phagocytosis and autophagic degradation of MRSA via activating p110β (a member of Class IA phosphoinositide 3-kinases) mediated autophagic response. QKI expression in macrophages led to the sequestration of p110β in mRNA processing (P) bodies and translational repression. Upon infection, the direct interaction of RNF6, a RING-type E3 ligase, mediated QKI ubiquitination degradation and facilitated PI3K-p110β related autophagic removal of pathogen. The administration of nanoparticles with QKI specific siRNA significantly protected mice from MRSA infection. Conclusions This study disclosed the novel function of QKI in the P body mRNA regulation during infection. QKI degradation in macrophage by RNF6 protects mice from MRSA infection via enhancing PI3K-p110β dependent autophagy. It suggested that QKI may serve as a potential theranostic marker in MRSA-induced sepsis. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13578-022-00865-9.
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14
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Nayak L, Sweet DR, Thomas A, Lapping SD, Kalikasingh K, Madera A, Vinayachandran V, Padmanabhan R, Vasudevan NT, Myers JT, Huang AY, Schmaier A, Mackman N, Liao X, Maiseyeu A, Jain MK. A targetable pathway in neutrophils mitigates both arterial and venous thrombosis. Sci Transl Med 2022; 14:eabj7465. [PMID: 36044595 DOI: 10.1126/scitranslmed.abj7465] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Arterial and venous thrombosis constitutes a major source of morbidity and mortality worldwide. Long considered as distinct entities, accumulating evidence indicates that arterial and venous thrombosis can occur in the same populations, suggesting that common mechanisms are likely operative. Although hyperactivation of the immune system is a common forerunner to the genesis of thrombotic events in both vascular systems, the key molecular control points remain poorly understood. Consequently, antithrombotic therapies targeting the immune system for therapeutics gain are lacking. Here, we show that neutrophils are key effectors of both arterial and venous thrombosis and can be targeted through immunoregulatory nanoparticles. Using antiphospholipid antibody syndrome (APS) as a model for arterial and venous thrombosis, we identified the transcription factor Krüppel-like factor 2 (KLF2) as a key regulator of neutrophil activation. Upon activation through genetic loss of KLF2 or administration of antiphospholipid antibodies, neutrophils clustered P-selectin glycoprotein ligand 1 (PSGL-1) by cortical actin remodeling, thereby increasing adhesion potential at sites of thrombosis. Targeting clustered PSGL-1 using nanoparticles attenuated neutrophil-mediated thrombosis in APS and KLF2 knockout models, illustrating the importance and feasibility of targeting activated neutrophils to prevent pathological thrombosis. Together, our results demonstrate a role for activated neutrophils in both arterial and venous thrombosis and identify key molecular events that serve as potential targets for therapeutics against diverse causes of immunothrombosis.
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Affiliation(s)
- Lalitha Nayak
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - David R Sweet
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA.,Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Asha Thomas
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Stephanie D Lapping
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Kenneth Kalikasingh
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Annmarie Madera
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Vinesh Vinayachandran
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Roshan Padmanabhan
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Neelakantan T Vasudevan
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Jay T Myers
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Alex Y Huang
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Alvin Schmaier
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Nigel Mackman
- Division of Hematology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xudong Liao
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Andrei Maiseyeu
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA.,Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Mukesh K Jain
- Warren Alpert Medical School of Brown University, Providence, R1 02903
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15
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Li X, Wang H, Yu X, Saha G, Kalafati L, Ioannidis C, Mitroulis I, Netea MG, Chavakis T, Hajishengallis G. Maladaptive innate immune training of myelopoiesis links inflammatory comorbidities. Cell 2022; 185:1709-1727.e18. [PMID: 35483374 PMCID: PMC9106933 DOI: 10.1016/j.cell.2022.03.043] [Citation(s) in RCA: 93] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 02/22/2022] [Accepted: 03/30/2022] [Indexed: 12/30/2022]
Abstract
Bone marrow (BM)-mediated trained innate immunity (TII) is a state of heightened immune responsiveness of hematopoietic stem and progenitor cells (HSPC) and their myeloid progeny. We show here that maladaptive BM-mediated TII underlies inflammatory comorbidities, as exemplified by the periodontitis-arthritis axis. Experimental-periodontitis-related systemic inflammation in mice induced epigenetic rewiring of HSPC and led to sustained enhancement of production of myeloid cells with increased inflammatory preparedness. The periodontitis-induced trained phenotype was transmissible by BM transplantation to naive recipients, which exhibited increased inflammatory responsiveness and disease severity when subjected to inflammatory arthritis. IL-1 signaling in HSPC was essential for their maladaptive training by periodontitis. Therefore, maladaptive innate immune training of myelopoiesis underlies inflammatory comorbidities and may be pharmacologically targeted to treat them via a holistic approach.
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Affiliation(s)
- Xiaofei Li
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hui Wang
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Xiang Yu
- Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gundappa Saha
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lydia Kalafati
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany
| | - Charalampos Ioannidis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany
| | - Ioannis Mitroulis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; First Department of Internal Medicine and Department of Haematology, Democritus University of Thrace, 681 00 Alexandroupolis, Greece
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen 6525 XZ, the Netherlands; Department of Immunology and Metabolism, Life and Medical Science Institute, University of Bonn, 53115 Bonn, Germany
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, UK.
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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16
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Maity J, Barthels D, Sarkar J, Prateeksha P, Deb M, Rolph D, Das H. Ferutinin induces osteoblast differentiation of DPSCs via induction of KLF2 and autophagy/mitophagy. Cell Death Dis 2022; 13:452. [PMID: 35552354 PMCID: PMC9098908 DOI: 10.1038/s41419-022-04903-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/29/2022] [Indexed: 01/18/2023]
Abstract
Osteoblast differentiation is critically reduced in various bone-related pathogenesis, including arthritis and osteoporosis. For future development of effective regenerative therapeutics, herein, we reveal the involved molecular mechanisms of a phytoestrogen, ferutinin-induced initiation of osteoblast differentiation from dental pulp-derived stem cell (DPSC). We demonstrate the significantly increased expression level of a transcription factor, Kruppel-like factor 2 (KLF2) along with autophagy-related molecules in DPSCs after induction with ferutinin. The loss-of-function and the gain-of-function approaches of KLF2 confirmed that the ferutinin-induced KLF2 modulated autophagic and OB differentiation-related molecules. Further, knockdown of the autophagic molecule (ATG7 or BECN1) from DPSC resulted not only in a decreased level of KLF2 but also in the reduced levels of OB differentiation-related molecules. Moreover, mitochondrial membrane potential-related molecules were increased and induction of mitophagy was observed in DPSCs after the addition of ferutinin. The reduction of mitochondrial as well as total ROS generations; and induction of intracellular Ca2+ production were also observed in ferutinin-treated DPSCs. To test the mitochondrial respiration in DPSCs, we found that the cells treated with ferutinin showed a reduced extracellular acidification rate (ECAR) than that of their vehicle-treated counterparts. Furthermore, mechanistically, chromatin immunoprecipitation (ChIP) analysis revealed that the addition of ferutinin in DPSCs not only induced the level of KLF2, but also induced the transcriptionally active epigenetic marks (H3K27Ac and H3K4me3) on the promoter region of the autophagic molecule ATG7. These results provide strong evidence that ferutinin stimulates OB differentiation via induction of KLF2-mediated autophagy/mitophagy.
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Affiliation(s)
- Jyotirindra Maity
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Derek Barthels
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Jaganmay Sarkar
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Prateeksha Prateeksha
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Moonmoon Deb
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Daniela Rolph
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
| | - Hiranmoy Das
- grid.416992.10000 0001 2179 3554Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX USA
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17
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Liao X, Chang E, Tang X, Watanabe I, Zhang R, Jeong HW, Adams RH, Jain MK. Cardiac macrophages regulate isoproterenol-induced Takotsubo-like cardiomyopathy. JCI Insight 2022; 7:156236. [PMID: 35132957 PMCID: PMC8855841 DOI: 10.1172/jci.insight.156236] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/15/2021] [Indexed: 12/24/2022] Open
Abstract
Takotsubo syndrome (TTS) is an acute, stress-induced cardiomyopathy that occurs predominantly in women after extreme physical and/or emotional stress. To date, our understanding of the molecular basis for TTS remains unknown and, consequently, specific therapies are lacking. Myocardial infiltration of monocytes and macrophages in TTS has been documented in clinical studies. However, the functional importance of these findings remains poorly understood. Here, we show that a single high dose of isoproterenol (ISO) in mice induced a TTS-like cardiomyopathy phenotype characterized by female predominance, severe cardiac dysfunction, and robust myocardial infiltration of macrophages. Single-cell RNA-Seq studies of myocardial immune cells revealed that TTS-like cardiomyopathy is associated with complex activation of innate and adaptive immune cells in the heart, and macrophages were identified as the dominant immune cells. Global macrophage depletion (via clodronate liposome administration) or blockade of macrophage infiltration (via a CCR2 antagonist or in CCR2-KO mice) resulted in recovery of cardiac dysfunction in ISO-challenged mice. In addition, damping myeloid cell activation by HIF1α deficiency or exposure to the immunomodulatory agent bortezomib ameliorated ISO-induced cardiac dysfunction. Collectively, our findings identify macrophages as a critical regulator of TTS pathogenesis that can be targeted for therapeutic gain.
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Affiliation(s)
- Xudong Liao
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Eugene Chang
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Xinmiao Tang
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.,Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ippei Watanabe
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Rongli Zhang
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Hyun-Woo Jeong
- Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, Münster, Germany
| | - Ralf H Adams
- Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, Münster, Germany
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
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18
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Liu F, Gao Y, Xu B, Xiong S, Yi S, Sun J, Chen Z, Liu X, Li Y, Lin Y, Wen Y, Qin Y, Yang S, Li H, Tejasvi T, Tsoi L, Tu P, Ren X, Wang Y. PEG10 amplification at 7q21.3 potentiates large-cell transformation in cutaneous T-cell lymphoma. Blood 2022; 139:554-571. [PMID: 34582557 PMCID: PMC8893588 DOI: 10.1182/blood.2021012091] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/07/2021] [Indexed: 01/29/2023] Open
Abstract
Mycosis fungoides (MF), the most common form of cutaneous T-cell lymphoma, undergo large-cell transformation (LCT) in the late stage, manifesting aggressive behavior, resistance to treatments, and poor prognosis, but the mechanisms involved remain unclear. To identify the molecular driver of LCT, we collected tumor samples from 133 MF patients and performed whole-transcriptome sequencing on 49 advanced-stage MF patients, followed by integrated copy number inference and genomic hybridization. Tumors with LCT showed unique transcriptional programs and enriched expressions of genes at chr7q. Paternally expressed gene 10 (PEG10), an imprinted gene at 7q21.3, was ectopically expressed in malignant T cells from LCT, driven by 7q21.3 amplification. Mechanistically, aberrant PEG10 expression increased cell size, promoted cell proliferation, and conferred treatment resistance by a PEG10/KLF2/NF-κB axis in in vitro and in vivo models. Pharmacologically targeting PEG10 reversed the phenotypes of proliferation and treatment resistance in LCT. Our findings reveal new molecular mechanisms underlying LCT and suggest that PEG10 inhibition may serve as a promising therapeutic approach in late-stage aggressive T-cell lymphoma.
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MESH Headings
- Animals
- Apoptosis Regulatory Proteins/genetics
- Cell Line, Tumor
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/pathology
- DNA-Binding Proteins/genetics
- Female
- Gene Amplification
- Gene Expression Regulation, Neoplastic
- Genomic Imprinting
- Humans
- Lymphoma, T-Cell, Cutaneous/genetics
- Lymphoma, T-Cell, Cutaneous/pathology
- Mice, Inbred NOD
- Mice, SCID
- Mycosis Fungoides/genetics
- Mycosis Fungoides/pathology
- RNA-Binding Proteins/genetics
- Skin Neoplasms/genetics
- Skin Neoplasms/pathology
- Mice
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Affiliation(s)
- Fengjie Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yumei Gao
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Bufang Xu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shan Xiong
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shengguo Yi
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Jingru Sun
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Zhuojing Chen
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Xiangjun Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yingyi Li
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yuchieh Lin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yujie Wen
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yao Qin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shuxia Yang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Hang Li
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Trilokraj Tejasvi
- Department of Dermatology, University of Michigan, Ann Arbor, MI; and
| | - Lam Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI; and
| | - Ping Tu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Xianwen Ren
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing 100034, China
| | - Yang Wang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
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19
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Wang D, Fan Y, Ma J, Gao C, Liu X, Zhao Z, Wei H, Yang G, Huang J, Jiang R, Zhang J. Atorvastatin combined with dexamethasone promote hematoma absorption in an optimized rat model of chronic subdural hematoma. Aging (Albany NY) 2021; 13:24815-24828. [PMID: 34813498 PMCID: PMC8660610 DOI: 10.18632/aging.203717] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/26/2021] [Indexed: 11/25/2022]
Abstract
Previous studies found that atorvastatin and dexamethasone were effective in promoting the absorption of chronic subdural hematoma. In this study, we aimed to investigate the effect of pharmacotherapy in an optimized rat model of chronic subdural hematoma. Rat model of chronic subdural hematoma via a bEnd.3 cell and Matrigel mix was established and dynamic changes in different drug treatment groups were tested. The hematoma gradually increased, peaked on the fifth day (263.8±52.85 μl), and was completely absorbed in two weeks. Notably, Kruppelle-like factor 2 expression was significantly decreased with increasing hematoma volume, and then increased in the repair period. The expression of IL-10 was increased and peaked on 7 days, and then decreased at 14 days. The dynamic trends of IL-6, IL-8, MMP-9, and VEGF were also increased first and then decreased. Both monotherapy and the combined treatment by atorvastatin and dexamethasone could counteract the inflammatory activities, decrease hematoma permeability, and improve hematoma absorption, however, most prominent in combined group. The combined treatment could more effectively increase Kruppelle-like factor 2 and ZO-1 expression, attenuate the expression of NF-κb. Most importantly, the combined treatment enhanced the neural functional prognosis and reduced the mortality of chronic subdural hematoma rats. According to our results, the combined treatment could more effectively attenuate inflammatory. And it could also enhance angiogenic activities which could promote the stability of local function and structure of the hematoma cavity, reduce the hematoma volume and improve the outcomes of rats with chronic subdural hematoma than single treatments in the optimized chronic subdural hematoma model.
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Affiliation(s)
- Dong Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Yueshan Fan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China.,Tianjin Medical University, Tianjin 300070, Tianjin, China
| | - Jun Ma
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Chuang Gao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Xuanhui Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China.,Tianjin Medical University, Tianjin 300070, Tianjin, China
| | - Zilong Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Huijie Wei
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Guili Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Jinhao Huang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Rongcai Jiang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
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20
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Tang X, Wang P, Zhang R, Watanabe I, Chang E, Vinayachandran V, Nayak L, Lapping S, Liao S, Madera A, Sweet DR, Luo J, Fei J, Jeong HW, Adams RH, Zhang T, Liao X, Jain MK. KLF2 regulates neutrophil activation and thrombosis in cardiac hypertrophy and heart failure progression. J Clin Invest 2021; 132:147191. [PMID: 34793333 PMCID: PMC8803339 DOI: 10.1172/jci147191] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 11/17/2021] [Indexed: 11/22/2022] Open
Abstract
It is widely recognized that inflammation plays a critical role in cardiac hypertrophy and heart failure. However, clinical trials targeting cytokines have shown equivocal effects, indicating the need for a deeper understanding of the precise role of inflammation and inflammatory cells in heart failure. Leukocytes from human subjects and a rodent model of heart failure were characterized by a marked reduction in expression of Klf2 mRNA. Using a mouse model of angiotensin II–induced nonischemic cardiac dysfunction, we showed that neutrophils played an essential role in the pathogenesis and progression of heart failure. Mechanistically, chronic angiotensin II infusion activated a neutrophil KLF2/NETosis pathway that triggered sporadic thrombosis in small myocardial vessels, leading to myocardial hypoxia, cell death, and hypertrophy. Conversely, targeting neutrophils, neutrophil extracellular traps (NETs), or thrombosis ameliorated these pathological changes and preserved cardiac dysfunction. KLF2 regulated neutrophil activation in response to angiotensin II at the molecular level, partly through crosstalk with HIF1 signaling. Taken together, our data implicate neutrophil-mediated immunothrombotic dysregulation as a critical pathogenic mechanism leading to cardiac hypertrophy and heart failure. This neutrophil KLF2-NETosis-thrombosis mechanism underlying chronic heart failure can be exploited for therapeutic gain by therapies targeting neutrophils, NETosis, or thrombosis.
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Affiliation(s)
- Xinmiao Tang
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Peiwei Wang
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rongli Zhang
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Ippei Watanabe
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Eugene Chang
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Vinesh Vinayachandran
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Lalitha Nayak
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Stephanie Lapping
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Sarah Liao
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Annmarie Madera
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - David R Sweet
- Case Western Reserve University, Cleveland, United States of America
| | - Jiemeng Luo
- Cardiology, Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Jinsong Fei
- Cardiology, Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Hyun-Woo Jeong
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Ralf H Adams
- Department of Tissue Morphogenesis, Max-Planck-Institute for Molecular Biomedicine, Münster, Germany
| | - Teng Zhang
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xudong Liao
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, United States of America
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21
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Fraxinellone ameliorates intracerebral hemorrhage-induced secondary brain injury by regulating Krüppel-like transcription factor 2 expression in rats. Brain Res Bull 2021; 177:340-351. [PMID: 34717966 DOI: 10.1016/j.brainresbull.2021.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 10/11/2021] [Accepted: 10/26/2021] [Indexed: 11/24/2022]
Abstract
Damage to the blood-brain barrier (BBB) is an important factor leading to intracerebral hemorrhage (ICH)-induced secondary brain injury (SBI). Krüppel-like transcription factor 2 (KLF2) plays an important role in the maintenance of the BBB. This study aims to detect the changes of KLF2 after ICH and evaluate the potential effects of fraxinellone on ICH-induced SBI and its correlation with KLF2. An ICH model was established by injecting autologous blood into the right basal ganglia of Sprague-Dawley (SD) rats. First, after ICH induction, the protein levels of KLF2 were reduced. Then, we found that the decrease of KLF2 protein levels induced by ICH could be effectively reversed with the treatment of fraxinellone in vascular endothelial cells. Furthermore, fraxinellone treatment effectively alleviated brain edema, decreased the levels of TNF-α and IL-1β, and improved neuronal cell degeneration induced by ICH. Meanwhile, fraxinellone ameliorated neurobehavioral disorders, motor and sensory impairments, and neurobehavioral disorders and memory loss caused by ICH. Collectively, these findings reveal that KLF2 may be a potential target for fraxinellone to exert neuroprotective effects after ICH, and fraxinellone could be a potential therapeutic agent for SBI after ICH.
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22
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Krüppel-like Factor 2 (KLF2) in Immune Cell Migration. Vaccines (Basel) 2021; 9:vaccines9101171. [PMID: 34696279 PMCID: PMC8539188 DOI: 10.3390/vaccines9101171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/27/2021] [Accepted: 10/06/2021] [Indexed: 01/30/2023] Open
Abstract
Krüppel-like factor 2 (KLF2), a transcription factor of the krüppel-like family, is a key regulator of activation, differentiation, and migration processes in various cell types. In this review, we focus on the functional relevance of KLF2 in immune cell migration and homing. We summarize the key functions of KLF2 in the regulation of chemokine receptors and adhesion molecules and discuss the relevance of the KLF2-mediated control of immune cell migration in the context of immune responses, infections, and diseases.
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23
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Wu D, Lee TH, Huang RT, D. Guzy R, Schoettler N, Adegunsoye A, Mueller J, Husain A, I. Sperling A, Mutlu GM, Fang Y. SARS-CoV-2 Infection Is Associated with Reduced Krüppel-like Factor 2 in Human Lung Autopsy. Am J Respir Cell Mol Biol 2021; 65:222-226. [PMID: 33971111 PMCID: PMC8399572 DOI: 10.1165/rcmb.2020-0564le] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Yun Fang
- The University of ChicagoChicago, Illinois
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24
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Combination Adjuvants Affect the Magnitude of Effector-Like Memory CD8 T Cells and Protection against Listeriosis. Infect Immun 2021; 89:e0076820. [PMID: 33782151 DOI: 10.1128/iai.00768-20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The development of T cell-based subunit protein vaccines against diseases such as tuberculosis and malaria remains a challenge for immunologists. Here, we have identified a nanoemulsion adjuvant, Adjuplex (ADJ), which enhanced dendritic cell (DC) cross-presentation and elicited effective memory T cell-based immunity to Listeria monocytogenes. We further evaluated whether cross-presentation induced by ADJ can be combined with the immunomodulatory effects of Toll-like receptor (TLR) agonists (CpG or glucopyranosyl lipid adjuvant [GLA]) to evoke systemic CD8 T cell-based immunity to L. monocytogenes. Mechanistically, vaccination with ADJ, alone or in combination with CpG or GLA, augmented activation and antigen uptake by CD103+ migratory and CD8α+ resident DCs and upregulated CD69 expression on B and T lymphocytes in vaccine-draining lymph nodes. By engaging basic leucine zipper ATF-like transcription factor 3-dependent cross-presenting DCs, ADJ potently elicited effector CD8 T cells that differentiated into granzyme B-expressing CD27LO effector-like memory CD8 T cells, which provided effective immunity to L. monocytogenes in the spleen and liver. CpG or GLA alone did not elicit effector-like memory CD8 T cells and induced moderate protection in the spleen but not in the liver. Surprisingly, combining CpG or GLA with ADJ reduced the number of ADJ-induced memory CD8 T cells and compromised protective immunity to L. monocytogenes, especially in the liver. Taken together, the data presented in this study provide a glimpse of protective CD8 T cell memory differentiation induced by a nanoemulsion adjuvant and demonstrate the unexpected negative effects of TLR signaling on the magnitude of CD8 T cell memory and protective immunity to L. monocytogenes, a model intracellular pathogen.
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25
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Sweet DR, Lam C, Jain MK. Evolutionary Protection of Krüppel-Like Factors 2 and 4 in the Development of the Mature Hemovascular System. Front Cardiovasc Med 2021; 8:645719. [PMID: 34079826 PMCID: PMC8165158 DOI: 10.3389/fcvm.2021.645719] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/21/2021] [Indexed: 02/02/2023] Open
Abstract
A properly functioning hemovascular system, consisting of circulating innate immune cells and endothelial cells (ECs), is essential in the distribution of nutrients to distant tissues while ensuring protection from invading pathogens. Professional phagocytes (e.g., macrophages) and ECs have co-evolved in vertebrates to adapt to increased physiological demands. Intercellular interactions between components of the hemovascular system facilitate numerous functions in physiology and disease in part through the utilization of shared signaling pathways and factors. Krüppel-like factors (KLFs) 2 and 4 are two such transcription factors with critical roles in both cellular compartments. Decreased expression of either factor in myeloid or endothelial cells increases susceptibility to a multitude of inflammatory diseases, underscoring the essential role for their expression in maintaining cellular quiescence. Given the close evolutionary relationship between macrophages and ECs, along with their shared utilization of KLF2 and 4, we hypothesize that KLF genes evolved in such a way that protected their expression in myeloid and endothelial cells. Within this Perspective, we review the roles of KLF2 and 4 in the hemovascular system and explore evolutionary trends in their nucleotide composition that suggest a coordinated protection that corresponds with the development of mature myeloid and endothelial systems.
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Affiliation(s)
- David R Sweet
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.,Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Cherry Lam
- Department of Biology, New York University, New York, NY, United States
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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26
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Wang X, Li H, Chen S, He J, Chen W, Ding Y, Huang J. P300/CBP-associated factor (PCAF) attenuated M1 macrophage inflammatory responses possibly through KLF2 and KLF4. Immunol Cell Biol 2021; 99:724-736. [PMID: 33768642 DOI: 10.1111/imcb.12455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/27/2020] [Accepted: 03/24/2021] [Indexed: 12/20/2022]
Abstract
Macrophages exhibit distinct phenotypes in response to environmental signals. The polarization of M1 macrophages plays an essential role in the inflammatory response. However, the specific molecular mechanisms regulating the inflammatory response during M1 macrophage polarization remain to be further understood. Here, we found that the histone acetyltransferase P300/CBP-associated factor (PCAF) was a potential negative regulator of the M1 macrophage inflammatory response. During M1 macrophage polarization, the inflammatory response gradually reduced, but PCAF expression increased. Furthermore, the overexpression of PCAF significantly inhibited the expression of the M1 macrophage-related pro-inflammatory genes TNF-α, IL-6 and CXCL10, while PCAF deficiency enhanced the expression of these genes. Furthermore, we found that PCAF overexpression suppressed the NF-κB signaling pathway and promoted the expression of the Krüppel-like factors (KLF) KLF2 and KLF4 through regulating their transcriptional levels. In addition, KLF2 and KLF4 deficiency reversed the PCAF-induced inhibition of the expression of pro-inflammatory genes in M1 macrophages. Collectively, the present results demonstrate a potential negative regulatory mechanism of the inflammatory response during M1 macrophage polarization and propose a novel mechanism of inflammation resolution for maintaining homeostasis.
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Affiliation(s)
- Xiuling Wang
- Department of Medical Laboratory, The Central Hospital of Wuhan, Huazhong University of Science and Technology, Wuhan, China
| | - Haiyan Li
- Department of Obstetrics and Gynecology, The First Hospital of Shijiazhuang City, Shijiazhuang, China
| | - Shanshan Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinrong He
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiqun Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Ding
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin Huang
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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27
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Bhattacherjee A, Jung J, Zia S, Ho M, Eskandari-Sedighi G, St. Laurent CD, McCord KA, Bains A, Sidhu G, Sarkar S, Plemel JR, Macauley MS. The CD33 short isoform is a gain-of-function variant that enhances Aβ 1-42 phagocytosis in microglia. Mol Neurodegener 2021; 16:19. [PMID: 33766097 PMCID: PMC7992807 DOI: 10.1186/s13024-021-00443-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/12/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND CD33 is genetically linked to Alzheimer's disease (AD) susceptibility through differential expression of isoforms in microglia. The role of the human CD33 short isoform (hCD33m), preferentially encoded by an AD-protective CD33 allele (rs12459419T), is unknown. Here, we test whether hCD33m represents a loss-of-function or gain-of-function variant. METHODS We have developed two models to test the role of hCD33m. The first is a new strain of transgenic mice expressing hCD33m in the microglial cell lineage. The second is U937 cells where the CD33 gene was disrupted by CRISPR/Cas9 and complemented with different variants of hCD33. Primary microglia and U937 cells were tested in phagocytosis assays and single cell RNA sequencing (scRNAseq) was carried out on the primary microglia. Furthermore, a new monoclonal antibody was developed to detect hCD33m more efficiently. RESULTS In both primary microglia and U937 cells, we find that hCD33m enhances phagocytosis. This contrasts with the human CD33 long isoform (hCD33M) that represses phagocytosis, as previously demonstrated. As revealed by scRNAseq, hCD33m+ microglia are enriched in a cluster of cells defined by an upregulated expression and gene regulatory network of immediate early genes, which was further validated within microglia in situ. Using a new hCD33m-specific antibody enabled hCD33m expression to be examined, demonstrating a preference for an intracellular location. Moreover, this newly discovered gain-of-function role for hCD33m is dependent on its cytoplasmic signaling motifs, dominant over hCD33M, and not due to loss of glycan ligand binding. CONCLUSIONS These results provide strong support that hCD33m represents a gain-of-function isoform and offers insight into what it may take to therapeutically capture the AD-protective CD33 allele.
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Affiliation(s)
- Abhishek Bhattacherjee
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Jaesoo Jung
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Sameera Zia
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, T6G 2E1 Canada
| | - Madelene Ho
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, T6G 2E1 Canada
| | - Ghazaleh Eskandari-Sedighi
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Chris D. St. Laurent
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Kelli A. McCord
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Arjun Bains
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Gaurav Sidhu
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Susmita Sarkar
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
| | - Jason R. Plemel
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, T6G 2E1 Canada
- Department of Medicine, Division of Neurology, University of Alberta, Edmonton, T6G 2E1 Canada
| | - Matthew S. Macauley
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Gunning Lemieux Chemistry Centre E5-18A, Edmonton, T6G 2G2 Canada
- Department of Medical Microbiology and Immunology, Edmonton, T6G 2E1 Canada
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28
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Sweet DR, Jain MK. Safeguarding the Vasculature: Redundant Transcriptional Machinery Ensures Endothelial Protection. Arterioscler Thromb Vasc Biol 2021; 41:1124-1126. [PMID: 33625882 DOI: 10.1161/atvbaha.120.315868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- David R Sweet
- Department of Medicine, Case Cardiovascular Research Institute (D.R.S., M.K.J.), Case Western Reserve University, Cleveland, OH.,Department of Pathology (D.R.S.), Case Western Reserve University, Cleveland, OH.,Department of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, OH (D.R.S., M.K.J.)
| | - Mukesh K Jain
- Department of Medicine, Case Cardiovascular Research Institute (D.R.S., M.K.J.), Case Western Reserve University, Cleveland, OH.,Department of Medicine, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, OH (D.R.S., M.K.J.)
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29
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Mohapatra S, Pioppini C, Ozpolat B, Calin GA. Non-coding RNAs regulation of macrophage polarization in cancer. Mol Cancer 2021; 20:24. [PMID: 33522932 PMCID: PMC7849140 DOI: 10.1186/s12943-021-01313-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022] Open
Abstract
Noncoding RNA (ncRNA) transcripts that did not code proteins but regulate their functions were extensively studied for the last two decades and the plethora of discoveries have instigated scientists to investigate their dynamic roles in several diseases especially in cancer. However, there is much more to learn about the role of ncRNAs as drivers of malignant cell evolution in relation to macrophage polarization in the tumor microenvironment. At the initial stage of tumor development, macrophages have an important role in directing Go/No-go decisions to the promotion of tumor growth, immunosuppression, and angiogenesis. Tumor-associated macrophages behave differently as they are predominantly induced to be polarized into M2, a pro-tumorigenic type when recruited with the tumor tissue and thereby favoring the tumorigenesis. Polarization of macrophages into M1 or M2 subtypes plays a vital role in regulating tumor progression, metastasis, and clinical outcome, highlighting the importance of studying the factors driving this process. A substantial number of studies have demonstrated that ncRNAs are involved in the macrophage polarization based on their ability to drive M1 or M2 polarization and in this review we have described their functions and categorized them into oncogenes, tumor suppressors, Juggling tumor suppressors, and Juggling oncogenes.
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Affiliation(s)
- Swati Mohapatra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas MD Anderson Cancer Center UT Health Graduate School of Biomedical Sciences (GSBS), Houston, TX, USA
| | - Carlotta Pioppini
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bulent Ozpolat
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - George A Calin
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Center for RNA Interference and Non-coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Life Science Plaza, Suite: LSP9.3012, 2130 W, Holcombe Blvd, Ste. 910, Houston, TX, 77030, USA.
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30
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Song Q, Lei Y, Shao L, Li W, Kong Q, Lin Z, Qin X, Wei W, Hou F, Li J, Guo X, Mao Y, Cao Y, Liu Z, Zheng L, Liang R, Jiang Y, Liu Y, Zhang L, Yang J, Lau YL, Zhang Y, Ban B, Wang YF, Yang W. Genome-wide association study on Northern Chinese identifies KLF2, DOT1L and STAB2 associated with systemic lupus erythematosus. Rheumatology (Oxford) 2021; 60:4407-4417. [PMID: 33493351 DOI: 10.1093/rheumatology/keab016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/10/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES To identify novel genetic loci associated with systemic lupus erythematosus (SLE) and to evaluate potential genetic differences between ethnic Chinese and European populations in SLE susceptibility. METHODS A new genome-wide association study (GWAS) was conducted from Jining, North China, on 1506 individuals (512 SLE cases and 994 matched healthy controls). The association results were meta-analysed with existing data on Chinese populations from Hong Kong, Guangzhou and Central China, as well as GWAS results from four cohorts of European ancestry. A total of 26 774 individuals (9310 SLE cases and 17 464 controls) were included in this study. RESULTS Meta-analysis on four Chinese cohorts identifies KLF2 as a novel locus associated with SLE [rs2362475; odds ratio (OR) = 0.85, P=2.00E-09]. KLF2 is likely an Asian-specific locus as no evidence of association was detected in the four European cohorts (OR = 0.98, P =0.58), with evidence of heterogeneity (P=0.0019) between the two ancestral groups. Meta-analyses of results from both Chinese and Europeans identify STAB2 (rs10082873; OR= 0.89, P=4.08E-08) and DOT1L (rs4807205; OR= 1.12, P=8.17E-09) as trans-ancestral association loci, surpassing the genome-wide significance. CONCLUSIONS We identified three loci associated with SLE, with KLF2 a likely Chinese-specific locus, highlighting the importance of studying diverse populations in SLE genetics. We hypothesize that DOT1L and KLF2 are plausible SLE treatment targets, with inhibitors of DOT1L and inducers of KLF2 already available clinically.
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Affiliation(s)
- Qin Song
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Yao Lei
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong.,Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Li Shao
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Weiyang Li
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong
| | - Qingsheng Kong
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong
| | - Zhiming Lin
- Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-Sen University
| | - Xiao Qin
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong
| | - Wei Wei
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong
| | - Fei Hou
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Shandong
| | - Jian Li
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Xianghua Guo
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Yujing Mao
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Yujie Cao
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Zhongyi Liu
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Lichuan Zheng
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Rui Liang
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Yuping Jiang
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Yan Liu
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Lili Zhang
- Department of Rheumatology and Lupus Research Institute, The Affiliated Hospital of Jining Medical University
| | - Jing Yang
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Yu Lung Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
| | - Yan Zhang
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou
| | - Bo Ban
- Department of Endocrinology, Affiliated Hospital of Jining Medical University, Jining Medical University.,Chinese Research Center for Behavior Medicine in Growth and Development, Shandong
| | - Yong-Fei Wang
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR.,Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Wanling Yang
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR
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31
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Lee W, Kingstad-Bakke B, Paulson B, Larsen A, Overmyer K, Marinaik CB, Dulli K, Toy R, Vogel G, Mueller KP, Tweed K, Walsh AJ, Russell J, Saha K, Reyes L, Skala MC, Sauer JD, Shayakhmetov DM, Coon J, Roy K, Suresh M. Carbomer-based adjuvant elicits CD8 T-cell immunity by inducing a distinct metabolic state in cross-presenting dendritic cells. PLoS Pathog 2021; 17:e1009168. [PMID: 33444400 PMCID: PMC7840022 DOI: 10.1371/journal.ppat.1009168] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 01/27/2021] [Accepted: 11/16/2020] [Indexed: 01/25/2023] Open
Abstract
There is a critical need for adjuvants that can safely elicit potent and durable T cell-based immunity to intracellular pathogens. Here, we report that parenteral vaccination with a carbomer-based adjuvant, Adjuplex (ADJ), stimulated robust CD8 T-cell responses to subunit antigens and afforded effective immunity against respiratory challenge with a virus and a systemic intracellular bacterial infection. Studies to understand the metabolic and molecular basis for ADJ's effect on antigen cross-presentation by dendritic cells (DCs) revealed several unique and distinctive mechanisms. ADJ-stimulated DCs produced IL-1β and IL-18, suggestive of inflammasome activation, but in vivo activation of CD8 T cells was unaffected in caspase 1-deficient mice. Cross-presentation induced by TLR agonists requires a critical switch to anabolic metabolism, but ADJ enhanced cross presentation without this metabolic switch in DCs. Instead, ADJ induced in DCs, an unique metabolic state, typified by dampened oxidative phosphorylation and basal levels of glycolysis. In the absence of increased glycolytic flux, ADJ modulated multiple steps in the cytosolic pathway of cross-presentation by enabling accumulation of degraded antigen, reducing endosomal acidity and promoting antigen localization to early endosomes. Further, by increasing ROS production and lipid peroxidation, ADJ promoted antigen escape from endosomes to the cytosol for degradation by proteasomes into peptides for MHC I loading by TAP-dependent pathways. Furthermore, we found that induction of lipid bodies (LBs) and alterations in LB composition mediated by ADJ were also critical for DC cross-presentation. Collectively, our model challenges the prevailing metabolic paradigm by suggesting that DCs can perform effective DC cross-presentation, independent of glycolysis to induce robust T cell-dependent protective immunity to intracellular pathogens. These findings have strong implications in the rational development of safe and effective immune adjuvants to potentiate robust T-cell based immunity.
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Affiliation(s)
- Woojong Lee
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Brock Kingstad-Bakke
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Brett Paulson
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Autumn Larsen
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Katherine Overmyer
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Chandranaik B. Marinaik
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Kelly Dulli
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Randall Toy
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Institute of Technology and Emory University and The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - Gabriela Vogel
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Institute of Technology and Emory University and The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - Katherine P. Mueller
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Kelsey Tweed
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Alex J. Walsh
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Jason Russell
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Krishanu Saha
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Leticia Reyes
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Melissa C. Skala
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - John-Demian Sauer
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Dmitry M. Shayakhmetov
- Lowance Center for Human Immunology, Emory Vaccine Center, Departments of Pediatrics and Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Joshua Coon
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Krishnendu Roy
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Institute of Technology and Emory University and The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - M. Suresh
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- * E-mail:
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Circadian Rhythm: Potential Therapeutic Target for Atherosclerosis and Thrombosis. Int J Mol Sci 2021; 22:ijms22020676. [PMID: 33445491 PMCID: PMC7827891 DOI: 10.3390/ijms22020676] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 02/07/2023] Open
Abstract
Every organism has an intrinsic biological rhythm that orchestrates biological processes in adjusting to daily environmental changes. Circadian rhythms are maintained by networks of molecular clocks throughout the core and peripheral tissues, including immune cells, blood vessels, and perivascular adipose tissues. Recent findings have suggested strong correlations between the circadian clock and cardiovascular diseases. Desynchronization between the circadian rhythm and body metabolism contributes to the development of cardiovascular diseases including arteriosclerosis and thrombosis. Circadian rhythms are involved in controlling inflammatory processes and metabolisms, which can influence the pathology of arteriosclerosis and thrombosis. Circadian clock genes are critical in maintaining the robust relationship between diurnal variation and the cardiovascular system. The circadian machinery in the vascular system may be a novel therapeutic target for the prevention and treatment of cardiovascular diseases. The research on circadian rhythms in cardiovascular diseases is still progressing. In this review, we briefly summarize recent studies on circadian rhythms and cardiovascular homeostasis, focusing on the circadian control of inflammatory processes and metabolisms. Based on the recent findings, we discuss the potential target molecules for future therapeutic strategies against cardiovascular diseases by targeting the circadian clock.
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33
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Sweet DR, Vasudevan NT, Fan L, Booth CE, Keerthy KS, Liao X, Vinayachandran V, Takami Y, Tugal D, Sharma N, Chan ER, Zhang L, Qing Y, Gerson SL, Fu C, Wynshaw-Boris A, Sangwung P, Nayak L, Holvoet P, Matoba K, Lu Y, Zhou G, Jain MK. Myeloid Krüppel-like factor 2 is a critical regulator of metabolic inflammation. Nat Commun 2020; 11:5872. [PMID: 33208733 PMCID: PMC7674440 DOI: 10.1038/s41467-020-19760-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 10/23/2020] [Indexed: 12/20/2022] Open
Abstract
Substantial evidence implicates crosstalk between metabolic tissues and the immune system in the inception and progression of obesity. However, molecular regulators that orchestrate metaflammation both centrally and peripherally remains incompletely understood. Here, we identify myeloid Krüppel-like factor 2 (KLF2) as an essential regulator of obesity and its sequelae. In mice and humans, consumption of a fatty diet downregulates myeloid KLF2 levels. Under basal conditions, myeloid-specific KLF2 knockout mice (K2KO) exhibit increased feeding and weight gain. High-fat diet (HFD) feeding further exacerbates the K2KO metabolic disease phenotype. Mechanistically, loss of myeloid KLF2 increases metaflammation in peripheral and central tissues. A combination of pair-feeding, bone marrow-transplant, and microglial ablation implicate central and peripheral contributions to K2KO-induced metabolic dysfunction observed. Finally, overexpression of myeloid KLF2 protects mice from HFD-induced obesity and insulin resistance. Together, these data establish myeloid KLF2 as a nodal regulator of central and peripheral metabolic inflammation in homeostasis and disease. Inflammation contributes to the development of metabolic disease through incompletely understood mechanisms. Here the authors report that deletion of the transcription factor KLF2 in myeloid cells leads to increased feeding and weight gain in mice with concomitant peripheral and central tissue inflammation, while overexpression protects against diet-induced metabolic disease.
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Affiliation(s)
- David R Sweet
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.,Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Neelakantan T Vasudevan
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Liyan Fan
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.,Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Chloe E Booth
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Komal S Keerthy
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Xudong Liao
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Vinesh Vinayachandran
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Yoichi Takami
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Derin Tugal
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Nikunj Sharma
- DBPAP/OVRR/CBER, Food and Drug Administration, Silver Spring, MD, USA
| | - E Ricky Chan
- Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA
| | - Lilei Zhang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Yulan Qing
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.,National Center for Regenerative Medicine, Seidman Cancer Center, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, OH, USA
| | - Stanton L Gerson
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.,National Center for Regenerative Medicine, Seidman Cancer Center, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, OH, USA
| | - Chen Fu
- Department of Genetics and Genome Sciences, Case Western Reserve University, and University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Anthony Wynshaw-Boris
- Department of Genetics and Genome Sciences, Case Western Reserve University, and University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Panjamaporn Sangwung
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.,Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH, USA
| | - Lalitha Nayak
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, USA
| | - Paul Holvoet
- Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Keiichiro Matoba
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Yuan Lu
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.,Charles River Laboratories, Ashland, OH, USA
| | - Guangjin Zhou
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
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34
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Wang J, Xia J, Huang R, Hu Y, Fan J, Shu Q, Xu J. Mesenchymal stem cell-derived extracellular vesicles alter disease outcomes via endorsement of macrophage polarization. Stem Cell Res Ther 2020; 11:424. [PMID: 32993783 PMCID: PMC7522905 DOI: 10.1186/s13287-020-01937-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are adult stromal cells that reside in virtually all postnatal tissues. Due to their regenerative and immunomodulatory capacities, MSCs have attracted growing attention during the past two decades. MSC-derived extracellular vesicles (MSC-EVs) are able to duplicate the effects of their parental cells by transferring functional proteins and genetic materials to recipient cells without cell-to-cell contact. MSC-EVs also target macrophages, which play an essential role in innate immunity, adaptive immunity, and homeostasis. Recent studies have demonstrated that MSC-EVs reduce M1 polarization and/or promote M2 polarization in a variety of settings. In this review, we discuss the mechanisms of macrophage polarization and roles of MSC-EV-induced macrophage polarization in the outcomes of cardiovascular, pulmonary, digestive, renal, and central nervous system diseases. In conclusion, MSC-EVs may become a viable alternative to MSCs for the treatment of diseases in which inflammation and immunity play a critical role.
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Affiliation(s)
- Jiangmei Wang
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Jie Xia
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Ruoqiong Huang
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Yaoqin Hu
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Jiajie Fan
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Qiang Shu
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China.
| | - Jianguo Xu
- The Children's Hospital of Zhejiang University School of Medicine and National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China.
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35
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Zhang J, Meng L, Jiang W, Zhang H, Zhou A, Zeng N. Identification of clinical molecular targets for childhood Burkitt lymphoma. Transl Oncol 2020; 13:100855. [PMID: 32947237 PMCID: PMC7502376 DOI: 10.1016/j.tranon.2020.100855] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/28/2020] [Accepted: 08/03/2020] [Indexed: 12/20/2022] Open
Abstract
Burkitt lymphoma (BL) is a malignant tumor in children. Although BL is generally curable, early relapse and refractoriness may occur. Some molecular indicators have been recently suggested for BL diagnosis, but large heterogeneity still exists. This study aimed at providing clinical molecular targets and methods that may help improve diagnosis and treatment of childhood BL. Only children patients were included in the study, and targeted gene sequencing was conducted to identify tumor specific mutations. The mRNA and protein level expression of potential target genes were measured by real-time PCR and immunohistochemistry. The relationship between BL specific gene mutation and differential expression with clinical features was analyzed. The results showed that i) detailed analysis of c-MYC/BCL2/BCL6 gene loci alteration and gene expression would help in accurate diagnosis and treatment determination of childhood BL; ii) loss-of-function mutations in SOCS1 or CIITA gene might be used as malignant markers for BL diagnosis and prognosis; iii) specific mutations of CD79A, MYD88, KLF2, DNMT3A and NFKBIE genes often concurrently existed in BL and showed association with benign clinical outcomes; iv) the high expression of MYC, TCF3 and loss-of-function ID3 genes in tumor may be potential therapeutic targets and could be used for treatment monitoring; and v) four MYC-translocation negative cases were re-defined as high-grade B-cell lymphoma-not otherwise specified (HGBL-NOS) but showed similar clinical outcomes and molecular features to other BL cases in the study, suggesting more studies needed to explore the molecular mechanisms and clinical significance of this provisional tumor entity. Detailed analysis of c-MYC/BCL2/BCL6 gene alteration and expression may help in accurate diagnosis and treatment; The MYC-translocation negative cases (HGBL-NOS) showed similar clinical outcomes and molecular features to other cases; Loss-of-function mutations of SOCS1 or CIITA gene could be used as malignant markers for diagnosis and prognosis; Concurrent mutations in CD79A, MYD88, KLF2, DNMT3A and NFKBIE genes associated with benign clinical outcomes; High expression of MYC, TCF3 and loss-of-function ID3 gene in tumor may be potential therapeutic targets.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Leijun Meng
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai 200040, China
| | - Weiyun Jiang
- Yu Kang Biotechnology Co., Ltd, Jiaxing 314100, Zhejiang, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai 200040, China
| | - Aiwu Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Naiyan Zeng
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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36
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Zhu LM, Zeng D, Lei XC, Huang J, Deng YF, Ji YB, Liu J, Dai FF, Li YZ, Shi DD, Zhu YQ, Dai AG, Wang Z. KLF2 regulates neutrophil migration by modulating CXCR1 and CXCR2 in asthma. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165920. [PMID: 32800946 DOI: 10.1016/j.bbadis.2020.165920] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 07/01/2020] [Accepted: 08/05/2020] [Indexed: 12/19/2022]
Abstract
Neutrophils are key inflammatory cells in the immunopathogenesis of asthma. Neutrophil migration can be initiated through activation of the CXCR1 and CXCR2 receptors by CXC chemokines, such as IL-8. Although transcription factor KLF2 has been found to maintain T cell migration patterns through repression of several chemokine receptors, whether KLF2 can regulate neutrophil migration via modulation of CXCR1 and CXCR2 is unknown. Here, we aimed to explore the functions of KLF2, CXCR1 and CXCR2 in neutrophil migration in asthma and to establish a regulatory role of KLF2 for CXCR1/2. We demonstrate that with asthma aggravation, the percentages and migration rates of peripheral blood neutrophils gradually increased in asthmatic patients and the guinea pig asthma model. Correspondingly, both the KLF2 mRNA and protein levels in neutrophils were gradually reduced. While CXCR1 and CXCR2 expression was negatively correlated with KLF2. In vitro knockdown of KLF2 dramatically increased the migration of HL-60-drived neutrophil-like cells, which was accompanied by an increase in the CXCR1 and CXCR2 mRNA and protein expression levels. Taken together, our results indicate that decreased KLF2 aggravates asthma progression by promoting neutrophil migration, which is associated with the transcriptional upregulation of CXCR1 and CXCR2. The KLF2 and/or CXCR1/2 expression levels may represent an indicator of asthma severity.
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Affiliation(s)
- Li-Ming Zhu
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China; Institute of Respiratory Disease, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China.
| | - Dan Zeng
- Institute of Respiratory Disease, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Xue-Chun Lei
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Jin Huang
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Yan-Feng Deng
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Yu-Bin Ji
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Jing Liu
- Molecular Biology Research Center, School of life Sciences, Central South University, Changsha 410008, China
| | - Fang-Fang Dai
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Yu-Zhu Li
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Dan-Dan Shi
- Department of Geriatric Respiratory Medicine, Hunan Provincial People's Hospital, The First-Affiliated Hospital of Hunan Normal University, Changsha 410016, China
| | - Ying-Qun Zhu
- Department of Respiratory Medicine, The Third Hospital of Changsha, Changsha 410015, China
| | - Ai-Guo Dai
- Institute of Respiratory Disease, Changsha medical University, Changsha 410219, China
| | - Zi Wang
- Molecular Biology Research Center, School of life Sciences, Central South University, Changsha 410008, China; Key Laboratory of Nanobiological Technology of Chinese Minisitry of Health, Xiangya Hospital, Central South Universeity, Changsha 410008, China.
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37
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Rolph D, Das H. Transcriptional Regulation of Osteoclastogenesis: The Emerging Role of KLF2. Front Immunol 2020; 11:937. [PMID: 32477372 PMCID: PMC7237574 DOI: 10.3389/fimmu.2020.00937] [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: 12/10/2019] [Accepted: 04/22/2020] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of osteoclastic differentiation and its activity is a hallmark of various musculoskeletal disease states. In this review, the complex molecular factors underlying osteoclastic differentiation and function are evaluated. The emerging role of KLF2 in regulation of osteoclastic differentiation is examined, specifically in the context of rheumatoid arthritis in which it has been most extensively studied among the musculoskeletal diseases. The therapies that exist to manage diseases associated with osteoclastogenesis are numerous and diverse. They are varied in their mechanisms of action and in the outcomes they produce. For this review, therapies targeting osteoclasts will be emphasized, though it should be noted that many therapies exist which bolster the action of osteoblasts. A new targeted molecular approach is under investigation for the future potential therapeutic development of rheumatoid arthritis.
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Affiliation(s)
- Daniela Rolph
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, United States
| | - Hiranmoy Das
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, United States
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38
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Yang M, Wang Y, Wang Q, Zhou Z, Yu Y, Wei S, Wang S, Qin Q. Characterization of Kruppel-like factor 6 in Epinephelus coioides: The role in viral infection and the transcriptional regulation on Peroxisome proliferator-activated receptor δ. FISH & SHELLFISH IMMUNOLOGY 2020; 99:9-18. [PMID: 32007559 DOI: 10.1016/j.fsi.2020.01.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
The Kruppel-like factor 6 (KLF6) is a member of Kruppel-like factor family, which belong to the Zinc finger family of transcription factors that mediates various cellular processes, such as proliferation, differentiation, development, and programmed cell death. Peroxisome proliferator-activated receptors (PPARs) are a family of transcription factors belonging to the nuclear receptor superfamily and they regulate numerous genes through ligand-dependent transcriptional activation and repression. In this study, we focus on the role of KLF6 gene in virus infection and the regulation of KLF6 on PPAR-δ in orange-spotted grouper (Epinephelus coioides). The ORF sequence of EcKLF6 was 846 bp, encoding a polypeptide of 282 amino acids with three conserved Zinc finger (type Cys2-His2) domain in the C-terminal region. Basing on the detection of the mRNA levels of viral genes, western blotting of MCP protein, and morphological CPEs, we found that the overexpression of EcKLF6 suppressed the replication of Singapore grouper iridovirus (SGIV), exerting its antiviral activity against fish virus. Moreover, promoter analysis was performed to investigate whether EcKLF6 was a regulator of EcPPAR-δ. The luciferase reporter assay and real time PCR results indicated a negative regulatory role of EcKLF6 on EcPPAR-δ transcription in grouper. Further experimental analysis shows that the potential EcKLF6 binding sites may locate in the EcPPAR-δ-4-M3 (+133 to +154) and EcPPAR-δ-4-M4 (+354 to +368) region of the EcPPAR-δ promoter. Electrophoretic mobile shift assays (EMSAs) verified that EcKLF6 interacted with the binding site of the EcPPAR-δ-4-M4 promoter region. In addition, we also found that KLF6 promotes inflammatory responses in GS cells. Considering that KLF6 and PPAR-δ play opposite roles in regulating inflammatory responses, we speculated the promoting effect of KLF6 on inflammatory response may be related to its negative regulation on EcPPAR-δ. In conclusion, the present study provides the first evidence of the negative regulation of EcPPAR-δ transcription by EcKLF6 and contributes to a better understanding of the transcriptional mechanisms of EcKLF6 in fish.
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Affiliation(s)
- Min Yang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yuxin Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qing Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Zhekai Zhou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yepin Yu
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shina Wei
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shaowen Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qiwei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China.
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Tajbakhsh A, Rezaee M, Barreto GE, Moallem SA, Henney NC, Sahebkar A. The role of nuclear factors as “Find-Me”/alarmin signals and immunostimulation in defective efferocytosis and related disorders. Int Immunopharmacol 2020; 80:106134. [DOI: 10.1016/j.intimp.2019.106134] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 12/16/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022]
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Kim GD, Ng HP, Chan ER, Mahabeleshwar GH. Kruppel-like factor 6 promotes macrophage inflammatory and hypoxia response. FASEB J 2020; 34:3209-3223. [PMID: 31908054 PMCID: PMC7774039 DOI: 10.1096/fj.201902221r] [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: 08/30/2019] [Revised: 11/26/2019] [Accepted: 12/23/2019] [Indexed: 12/20/2022]
Abstract
Macrophages are the professional phagocytes that protect the host from infection or injury. Tissue microenvironment at the site of injury and inflammation is characterized by low oxygen concentration and poor supply of nutrients. The responding macrophages have to advance against oxygen and nutrient gradients to reach the site of inflammation to perform host protection, and tissue repair functions. Thus, evolution has fashioned macrophages to orchestrate a coordinated inflammatory and hypoxic gene program to mount an effective immune response. Here, we discovered that Kruppel‐like factor 6 (KLF6) governs macrophage functions by promoting inflammatory and hypoxic response gene programming. Our in vivo studies revealed that myeloid‐KLF6‐deficient mice were highly resistant to endotoxin‐induced systemic inflammatory response syndrome symptomatology and mortality. Using complementary gain‐ and loss‐of‐function studies, we observed that KLF6 overexpression elevate and KLF6 deficiency attenuate inducible HIF1α expression in macrophages. Our integrated transcriptomics and gene set enrichment analysis studies uncovered that KLF6 deficiency attenuates broad inflammatory and glycolytic gene expression in macrophages. More importantly, overexpression of oxygen stable HIF1α reversed attenuated proinflammatory and glycolytic gene expression in KLF6‐deficient macrophages. Collectively, our studies uncovered that KLF6 govern inflammatory and hypoxic response by regulating HIF1α expression in macrophage.
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Affiliation(s)
- Gun-Dong Kim
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Hang Pong Ng
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - E Ricky Chan
- Cleveland Institute for Computational Biology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Ganapati H Mahabeleshwar
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, USA.,Cardiovascular Research Institute, Case Western Reserve University School of Medicine, Cleveland, OH, USA
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KLF2 Protects against Osteoarthritis by Repressing Oxidative Response through Activation of Nrf2/ARE Signaling In Vitro and In Vivo. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8564681. [PMID: 31827706 PMCID: PMC6885785 DOI: 10.1155/2019/8564681] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/17/2019] [Indexed: 12/21/2022]
Abstract
Osteoarthritis (OA) is a multifactorial and inflammatory disease characterized by cartilage destruction that can cause disability among aging patients. There is currently no effective treatment that can arrest or reverse OA progression. Kruppel-like factor 2 (KLF2), a member of the zinc finger family, has emerged as a transcription factor involved in a wide variety of inflammatory diseases. Here, we identified that KLF2 expression is downregulated in IL-1β-treated human chondrocytes and OA cartilage. Genetic and pharmacological overexpression of KLF2 suppressed IL-1β-induced apoptosis and matrix degradation through the suppression of reactive oxygen species (ROS) production. In addition, KLF2 overexpression resulted in increased expression of heme oxygenase-1 (HO-1) and NAD(P)H dehydrogenase quinone 1 (NQO1) through the enhanced nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2). Further, Nrf2 inhibition abrogated the chondroprotective effects of KLF2. Safranin O/fast green and TUNEL staining demonstrated that adenovirus-mediated overexpression of KLF2 in joint cartilage protects rats against experimental OA by inhibiting cartilage degradation and chondrocyte apoptosis. Immunohistochemical staining revealed that KLF2 overexpression significantly decreases MMP13 expression caused by OA progression in vivo. This in vitro and in vivo study is the first to investigate the antioxidative effect and mechanisms of KLF2 in OA pathogenesis. Our results collectively provide new insights into OA pathogenesis regulated by KLF2 and a rationale for the development of effective OA intervention strategies.
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Li N, Liu SF, Dong K, Zhang GC, Huang J, Wang ZH, Wang TJ. Exosome-Transmitted miR-25 Induced by H. pylori Promotes Vascular Endothelial Cell Injury by Targeting KLF2. Front Cell Infect Microbiol 2019; 9:366. [PMID: 31750260 PMCID: PMC6842922 DOI: 10.3389/fcimb.2019.00366] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/08/2019] [Indexed: 02/06/2023] Open
Abstract
Background: Increasing evidence has shown that Helicobacter pylori is associated with coronary heart disease (CHD); however, the underlying mechanism remains unclear. Methods: The expression of miR-25 and mRNAs was measured using qRT-PCR. Protein levels were detected using western blotting and exosomes were assessed with an electron microscope. The target gene of miR-25 was identified using the luciferase report system. Results: H. pylori infection increased the expression of miR-25 in gastric epithelial cells and was associated with increased levels of exosome-transmitted miR-25 in human peripheral blood. Mechanistic investigation showed the Kruppel-like factor 2 (KLF2) was a direct target of exosome-transmitted miR-25 in vascular endothelial cells. In addition, the miR-25/KLF2 axis regulated the NF-κB signaling pathway, resulting in increased expression of interleukin 6 (IL6), monocyte chemoattractant protein-1 (MCP-1), vascular cell adhesion molecule-1 (VCAM-1), and intercellular adhesion molecule-1 (ICAM-1). Conclusion: Our findings suggest that the miR-25/KLF2 axis may be a potential therapeutic target for H. pylori-associated CHD. Furthermore, high levels of exosome-transmitted miR-25 in peripheral blood may pose a potential risk for CHD.
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Affiliation(s)
- Na Li
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Shi-Feng Liu
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Kai Dong
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Gui-Chun Zhang
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Jing Huang
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Zhi-Heng Wang
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
| | - Tong-Jian Wang
- Department of Pediatric Cardiac Surgery, Institute of Cardiovascular Disease, The 960th Hospital of Chinese PLA, Jinan, China
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Das M, Deb M, Laha D, Joseph M, Kanji S, Aggarwal R, Iwenofu OH, Pompili VJ, Jarjour W, Das H. Myeloid Krüppel-Like Factor 2 Critically Regulates K/BxN Serum-Induced Arthritis. Cells 2019; 8:cells8080908. [PMID: 31426355 PMCID: PMC6721677 DOI: 10.3390/cells8080908] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/29/2019] [Accepted: 08/15/2019] [Indexed: 01/14/2023] Open
Abstract
Rheumatoid arthritis (RA) is an immune-mediated inflammatory disease, and Krüppel-like factor 2 (KLF2) regulates immune cell activation and function. Herein, we show that in our experiments 50% global deficiency of KLF2 significantly elevated arthritic inflammation and pathogenesis, osteoclastic differentiation, matrix metalloproteinases (MMPs), and inflammatory cytokines in K/BxN serum-induced mice. The severities of RA pathogenesis, as well as the causative and resultant cellular and molecular factors, were further confirmed in monocyte-specific KLF2 deficient mice. In addition, induction of RA resulted in a decreased level of KLF2 in monocytes isolated from both mice and humans along with higher migration of activated monocytes to the RA sites in humans. Mechanistically, overexpression of KLF2 decreased the level of MMP9; conversely, knockdown of KLF2 increased MMP9 in monocytes along with enrichment of active histone marks and histone acetyltransferases on the MMP9 promoter region. These findings define the critical regulatory role of myeloid KLF2 in RA pathogenesis.
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Affiliation(s)
- Manjusri Das
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Moonmoon Deb
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Dipranjan Laha
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Matthew Joseph
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Suman Kanji
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Reeva Aggarwal
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - O Hans Iwenofu
- Department of Pathology, College of Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Vincent J Pompili
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Wael Jarjour
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Hiranmoy Das
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA.
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
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Tian R, Li R, Liu Y, Liu J, Pan T, Zhang R, Liu B, Chen E, Tang Y, Qu H. Metformin ameliorates endotoxemia-induced endothelial pro-inflammatory responses via AMPK-dependent mediation of HDAC5 and KLF2. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1701-1712. [PMID: 31002870 DOI: 10.1016/j.bbadis.2019.04.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 12/12/2022]
Abstract
Exaggerated endothelial pro-inflammatory response is a hallmark in the early stage of sepsis and contributes to the subsequent tissue injury and organ failure. The anti-inflammatory effects of AMP-activated protein kinase (AMPK) activator metformin in sepsis has been revealed. However, the underlying mechanisms remain not fully understood. In the present study, the potential roles of histone deacetylase 5 (HDAC5) and kruppel-like factor 2 (KLF2) in the effects of metformin on endothelial pro-inflammatory responses were investigated. The results showed that metformin pretreatment increased the phosphorylation of HDAC5 at serine 498, leading to the upregulation of KLF2, and eliminated lipopolysaccharide (LPS) and tumor necrosis factor ⍺ (TNF⍺)-induced upregulation of vascular cell adhesion molecule 1 (VCAM1). Furthermore, the adhesion of HL60 leukocytes to endothelial monolayer was effectively inhibited by metformin. In addition, the in vivo data confirmed that AMPK activation attenuated local and systemic inflammation in endotoxic mice induced by LPS via mediating phosphorylating HDAC5 and restoring KLF2 expression. Our findings revealed that AMPK activation-mediated HDAC5 phosphorylation and KLF2 restoration is, at least partially, responsible to the anti-inflammatory effects of metformin in endotoxemia-induced endothelial cells, which has important implications for the future development of interfering therapies of sepsis.
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Affiliation(s)
- Rui Tian
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Ranran Li
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China.
| | - Yiyun Liu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Jialin Liu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Tingting Pan
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Ruyuan Zhang
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Bingya Liu
- Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Erzhen Chen
- Department of emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Yaoqing Tang
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China
| | - Hongping Qu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PR China.
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45
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Staphylococcus aureus Biofilm-Conditioned Medium Impairs Macrophage-Mediated Antibiofilm Immune Response by Upregulating KLF2 Expression. Infect Immun 2019; 87:IAI.00643-18. [PMID: 30692179 DOI: 10.1128/iai.00643-18] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/20/2019] [Indexed: 12/21/2022] Open
Abstract
Staphylococcus aureus infections associated with the formation of biofilms on medical implants or host tissue play a critical role in the persistence of chronic infections. One critical mechanism of biofilm infection that leads to persistent infection lies in the capacity of biofilms to evade the macrophage-mediated innate immune response. It is now increasingly apparent that microorganisms exploit the negative regulatory mechanisms of the pattern recognition receptor (PRR)-mediated inflammatory response to subvert host cell functions by using various virulence factors. However, the detailed molecular mechanism, along with the identity of a target molecule, underlying the evasion of the macrophage-mediated innate immune response against S. aureus infection associated with biofilm formation remains to be elucidated. Here, using an in vitro culture model of murine macrophage-like RAW 264.7 cells, we demonstrate that S. aureus biofilm-conditioned medium significantly attenuated the capacity for macrophage bactericidal and proinflammatory responses. Importantly, the responses were associated with attenuated activation of NF-κB and increased expression of Kruppel-like factor 2 (KLF2) in RAW 264.7 cells. Small interfering RNA (siRNA)-mediated silencing of KLF2 in RAW 264.7 cells could restore the activation of NF-κB toward the bactericidal activity and generation of proinflammatory cytokines in the presence of S. aureus biofilm-conditioned medium. Collectively, our results suggest that factors secreted from S. aureus biofilms might exploit the KLF2-dependent negative regulatory mechanism to subvert macrophage-mediated innate immune defense against S. aureus biofilms.
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46
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Das M, Laha D, Kanji S, Joseph M, Aggarwal R, Iwenofu OH, Pompili VJ, Jain MK, Das H. Induction of Krüppel-like factor 2 reduces K/BxN serum-induced arthritis. J Cell Mol Med 2019; 23:1386-1395. [PMID: 30506878 PMCID: PMC6349180 DOI: 10.1111/jcmm.14041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 09/18/2018] [Accepted: 10/29/2018] [Indexed: 12/27/2022] Open
Abstract
Krüppel-like factor 2 (KLF2) critically regulates activation and function of monocyte, which plays important pathogenic role in progressive joint destruction in rheumatoid arthritis (RA). It is yet to be established the molecular basis of KLF2-mediated regulation of monocytes in RA pathogenesis. Herein, we show that a class of compound, HDAC inhibitors (HDACi) induced KLF2 expression in monocytes both in vitro and in vivo. KLF2 level was also elevated in tissues, such as bone marrow, spleen and thymus in mice after infusion of HDACi. Importantly, HDACi significantly reduced osteoclastic differentiation of monocytes with the up-regulation of KLF2 and concomitant down-regulation of matrixmetalloproteinases both in the expression level as well as in the protein level. In addition, HDACi reduced K/BxN serum-induced arthritic inflammation and joint destruction in mice in a dose-dependent manner. Finally, co-immunoprecipitation and overexpression studies confirmed that KLF2 directly interacts with HDAC4 molecule in cells. These findings provide mechanistic evidence of KLF2-mediated regulation of K/BxN serum-induced arthritic inflammation.
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Affiliation(s)
- Manjusri Das
- Department of Internal MedicineThe Ohio State University Medical CenterColumbusOhio
| | - Dipranjan Laha
- Department of Pharmaceutical SciencesSchool of PharmacyTexas Tech University Health Sciences CenterAmarilloTexas
| | - Suman Kanji
- Department of Pharmaceutical SciencesSchool of PharmacyTexas Tech University Health Sciences CenterAmarilloTexas
| | - Matthew Joseph
- Department of Internal MedicineThe Ohio State University Medical CenterColumbusOhio
| | - Reeva Aggarwal
- Department of Internal MedicineThe Ohio State University Medical CenterColumbusOhio
| | - Obiajulu H. Iwenofu
- Department of PathologyCollege of MedicineThe Ohio State UniversityColumbusOhio
| | - Vincent J. Pompili
- Department of Internal MedicineThe Ohio State University Medical CenterColumbusOhio
| | - Mukesh K. Jain
- Department of Internal MedicineCase Western Reserve UniversityClevelandOhio
| | - Hiranmoy Das
- Department of Pharmaceutical SciencesSchool of PharmacyTexas Tech University Health Sciences CenterAmarilloTexas
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47
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Oishi Y, Manabe I. Krüppel-Like Factors in Metabolic Homeostasis and Cardiometabolic Disease. Front Cardiovasc Med 2018; 5:69. [PMID: 29942807 PMCID: PMC6004387 DOI: 10.3389/fcvm.2018.00069] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 05/21/2018] [Indexed: 12/16/2022] Open
Abstract
Members of the Krüppel-like factor (KLF) family of transcription factors, which are characterized by the presence of three conserved Cys2/His2 zinc-fingers in their C-terminal domains, control a wide variety of biological processes. In particular, recent studies have revealed that KLFs play diverse and essential roles in the control of metabolism at the cellular, tissue and systemic levels. In both liver and skeletal muscle, KLFs control glucose, lipid and amino acid metabolism so as to coordinate systemic metabolism in the steady state and in the face of metabolic stresses, such as fasting. The functions of KLFs within metabolic tissues are also important contributors to the responses to injury and inflammation within those tissues. KLFs also control the function of immune cells, such as macrophages, which are involved in the inflammatory processes underlying both cardiovascular and metabolic diseases. This review focuses mainly on the physiological and pathological functions of KLFs in the liver and skeletal muscle. The involvement of KLFs in inflammation in these tissues is also summarized. We then discuss the implications of KLFs' control of metabolism and inflammation in cardiometabolic diseases.
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Affiliation(s)
- Yumiko Oishi
- Department of Biochemistry & Molecular Biology, Nippon Medical School, Tokyo, Japan
| | - Ichiro Manabe
- Department of Disease Biology and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
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48
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Liu Y, Huang Y, Xu Y, Qu P, Wang M. Memantine protects against ischemia/reperfusion-induced brain endothelial permeability. IUBMB Life 2018. [PMID: 29542225 DOI: 10.1002/iub.1729] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yingying Liu
- Department of neurology; The fifth Affiliated Hospital of Harbin Medical University; Daqian Heilongjiang China
| | - Yudiao Huang
- Department of neurology; The fifth Affiliated Hospital of Harbin Medical University; Daqian Heilongjiang China
| | - Yueyue Xu
- Department of Nursing; The fifth Affiliated Hospital of Harbin Medical University; Daqian Heilongjiang China
| | - Peng Qu
- Department of neurology; The fifth Affiliated Hospital of Harbin Medical University; Daqian Heilongjiang China
| | - Minghua Wang
- Department of neurology; The fifth Affiliated Hospital of Harbin Medical University; Daqian Heilongjiang China
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49
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CITED2 Restrains Proinflammatory Macrophage Activation and Response. Mol Cell Biol 2018; 38:MCB.00452-17. [PMID: 29203644 DOI: 10.1128/mcb.00452-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/29/2017] [Indexed: 02/08/2023] Open
Abstract
Macrophages are strategically distributed in mammalian tissues and play an essential role in priming the immune response. However, macrophages need to constantly strike a balance between activation and inhibition states to avoid a futile inflammatory reaction. Here, we identify the CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxyl-terminal domain 2 (CITED2) as a potent repressor of macrophage proinflammatory activation. Gain- and loss-of-function studies revealed that CITED2 is required for optimal peroxisome proliferator-activated receptor gamma (PPARγ) activation and attendant select anti-inflammatory gene expression in macrophages. More importantly, deficiency of CITED2 resulted in significant attenuation of rosiglitazone-induced PPARγ activity, PPARγ recruitment to target gene promoters, and anti-inflammatory target gene expression in macrophages. Interestingly, deficiency of Cited2 strikingly heightened proinflammatory gene expression through stabilization of hypoxia-inducible factor 1 alpha (HIF1α) protein in macrophages. Further, overexpression of Egln3 or inhibition of HIF1α in Cited2-deficient macrophages completely reversed elevated proinflammatory cytokine/chemokine gene expression. Importantly, mice bearing a myeloid cell-specific deletion of Cited2 were highly susceptible to endotoxin-induced sepsis symptomatology and mortality. Collectively, our observations identify CITED2 as a novel negative regulator of macrophage proinflammatory activation that protects the host from inflammatory insults.
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50
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Sweet DR, Fan L, Hsieh PN, Jain MK. Krüppel-Like Factors in Vascular Inflammation: Mechanistic Insights and Therapeutic Potential. Front Cardiovasc Med 2018; 5:6. [PMID: 29459900 PMCID: PMC5807683 DOI: 10.3389/fcvm.2018.00006] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/17/2018] [Indexed: 12/19/2022] Open
Abstract
The role of inflammation in vascular disease is well recognized, involving dysregulation of both circulating immune cells as well as the cells of the vessel wall itself. Unrestrained vascular inflammation leads to pathological remodeling that eventually contributes to atherothrombotic disease and its associated sequelae (e.g., myocardial/cerebral infarction, embolism, and critical limb ischemia). Signaling events during vascular inflammation orchestrate widespread transcriptional programs that affect the functions of vascular and circulating inflammatory cells. The Krüppel-like factors (KLFs) are a family of transcription factors central in regulating vascular biology in states of homeostasis and disease. Given their abundance and diversity of function in cells associated with vascular inflammation, understanding the transcriptional networks regulated by KLFs will further our understanding of the pathogenesis underlying several pervasive health concerns (e.g., atherosclerosis, stroke, etc.) and consequently inform the treatment of cardiovascular disease. Within this review, we will discuss the role of KLFs in coordinating protective and deleterious responses during vascular inflammation, while addressing the potential targeting of these critical transcription factors in future therapies.
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Affiliation(s)
- David R Sweet
- Case Cardiovascular Research Institute, Case Western Reserve University, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.,Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Liyan Fan
- Case Cardiovascular Research Institute, Case Western Reserve University, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.,Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Paishiun N Hsieh
- Case Cardiovascular Research Institute, Case Western Reserve University, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.,Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University, Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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