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Wolf SJ, Audu CO, Moon JY, Joshi AD, Melvin WJ, Barrett EC, Mangum K, de Jimenez GS, Rocco S, Buckley S, Ahmed Z, Wasikowski R, Kahlenberg JM, Tsoi LC, Gudjonsson JE, Gallagher KA. Diabetic Wound Keratinocytes Induce Macrophage JMJD3-Mediated Nlrp3 Expression via IL-1R Signaling. Diabetes 2024; 73:1462-1472. [PMID: 38869447 DOI: 10.2337/db23-0968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Macrophage (Mφ) plasticity is critical for normal wound repair; however, in type 2 diabetic wounds, Mφs persist in a low-grade inflammatory state that prevents the resolution of wound inflammation. Increased NLRP3 inflammasome activity has been shown in diabetic wound Mφs; however, the molecular mechanisms regulating NLRP3 expression and activity are unclear. Here, we identified that diabetic wound keratinocytes induce Nlrp3 gene expression in wound Mφs through IL-1 receptor-mediated signaling, resulting in enhanced inflammasome activation in the presence of pathogen-associated molecular patterns and damage-associated molecular patterns. We found that IL-1α is increased in human and murine wound diabetic keratinocytes compared with nondiabetic controls and directly induces Mφ Nlrp3 expression through IL-1 receptor signaling. Mechanistically, we report that the histone demethylase, JMJD3, is increased in wound Mφs late post-injury and is induced by IL-1α from diabetic wound keratinocytes, resulting in Nlrp3 transcriptional activation through an H3K27me3-mediated mechanism. Using genetically engineered mice deficient in JMJD3 in myeloid cells (Jmjd3f/flyz2Cre+), we demonstrate that JMJD3 controls Mφ-mediated Nlrp3 expression during diabetic wound healing. Thus, our data suggest a role for keratinocyte-mediated IL-1α/IL-1R signaling in driving enhanced NLRP3 inflammasome activity in wound Mφs. These data also highlight the importance of cell cross-talk in wound tissues and identify JMJD3 and the IL-1R signaling cascade as important upstream therapeutic targets for Mφ NLRP3 inflammasome hyperactivity in nonhealing diabetic wounds. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Sonya J Wolf
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Christopher O Audu
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Jadie Y Moon
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Amrita D Joshi
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - William J Melvin
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Emily C Barrett
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Kevin Mangum
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - Sabrina Rocco
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Sam Buckley
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Zara Ahmed
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - J Michelle Kahlenberg
- Department of Dermatology, University of Michigan, Ann Arbor, MI
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI
| | | | - Katherine A Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
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Audu CO, Melvin WJ, Joshi AD, Wolf SJ, Moon JY, Davis FM, Barrett EC, Mangum KD, Deng H, Xing X, Wasikowski R, Tsoi LC, Sharma SB, Bauer TM, Shadiow J, Corriere MA, Obi AT, Kunkel SL, Levi B, Moore BB, Gudjonsson JE, Smith AM, Gallagher KA. Macrophage-specific inhibition of the histone demethylase JMJD3 decreases STING and pathologic inflammation in diabetic wound repair. Cell Mol Immunol 2022; 19:1251-1262. [PMID: 36127466 PMCID: PMC9622909 DOI: 10.1038/s41423-022-00919-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/09/2022] [Indexed: 02/01/2023] Open
Abstract
Macrophage plasticity is critical for normal tissue repair following injury. In pathologic states such as diabetes, macrophage plasticity is impaired, and macrophages remain in a persistent proinflammatory state; however, the reasons for this are unknown. Here, using single-cell RNA sequencing of human diabetic wounds, we identified increased JMJD3 in diabetic wound macrophages, resulting in increased inflammatory gene expression. Mechanistically, we report that in wound healing, JMJD3 directs early macrophage-mediated inflammation via JAK1,3/STAT3 signaling. However, in the diabetic state, we found that IL-6, a cytokine increased in diabetic wound tissue at later time points post-injury, regulates JMJD3 expression in diabetic wound macrophages via the JAK1,3/STAT3 pathway and that this late increase in JMJD3 induces NFκB-mediated inflammatory gene transcription in wound macrophages via an H3K27me3 mechanism. Interestingly, RNA sequencing of wound macrophages isolated from mice with JMJD3-deficient myeloid cells (Jmjd3f/fLyz2Cre+) identified that the STING gene (Tmem173) is regulated by JMJD3 in wound macrophages. STING limits inflammatory cytokine production by wound macrophages during healing. However, in diabetic mice, its role changes to limit wound repair and enhance inflammation. This finding is important since STING is associated with chronic inflammation, and we found STING to be elevated in human and murine diabetic wound macrophages at late time points. Finally, we demonstrate that macrophage-specific, nanoparticle inhibition of JMJD3 in diabetic wounds significantly improves diabetic wound repair by decreasing inflammatory cytokines and STING. Taken together, this work highlights the central role of JMJD3 in tissue repair and identifies cell-specific targeting as a viable therapeutic strategy for nonhealing diabetic wounds.
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Affiliation(s)
- Christopher O Audu
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - William J Melvin
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Amrita D Joshi
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Sonya J Wolf
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Jadie Y Moon
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Frank M Davis
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Emily C Barrett
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Kevin D Mangum
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Hongping Deng
- Department of Bioengineering, University of Illinois, Urbana-Champaign, Champaign, IL, USA
| | - Xianying Xing
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Rachel Wasikowski
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Sriganesh B Sharma
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Tyler M Bauer
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
| | - James Shadiow
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Matthew A Corriere
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Andrea T Obi
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Steven L Kunkel
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Benjamin Levi
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bethany B Moore
- Department of Surgery, Section of General Surgery, University of Michigan, Ann Arbor, MI, USA
| | | | - Andrew M Smith
- Department of Bioengineering, University of Illinois, Urbana-Champaign, Champaign, IL, USA
| | - Katherine A Gallagher
- Department of Surgery, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI, USA.
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA.
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Wu Y, Hu Y, Tang L, Yin S, Lv L, Zhou P. Targeting CXCR4 to suppress glioma-initiating cells and chemoresistance in glioma. Cell Biol Int 2022; 46:1519-1529. [PMID: 35731168 DOI: 10.1002/cbin.11836] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 04/09/2022] [Accepted: 05/07/2022] [Indexed: 02/05/2023]
Abstract
Glioma initiating cells (GICs), also known as glioma stem cells, display the capacity to recapitulate the functional diversity within the tumor. Despite the great progress achieved over the last decades, defining the key molecular regulators of GICs has represented a major obstacle in this field. In our study, data from The Cancer Genome Atlas database illustrated a relationship between C-X-C motif chemokine receptor 4 (CXCR4) expression and the survival of glioma patients. Mechanistically, we further indicated that CXCR4 mediated the upregulation of Kruppel like factor 5 (KLF5), a zinc-finger-containing transcription factor, to facilitate the proliferation of GICs. What's more, CXCR4 also enhanced the chemoresistance through KLF5/Bcl2-like 12 (BCl2L12) in glioma. The elevated expression of KLF5 and BCL2L12 induced by CXCR4 was dependent on phosphoinositide 3-kinases (PI3K)/serine/threonine kinase (AKT) signaling. Importantly, combined application of temozolomide and a CXCR4 inhibitor efficiently reversed CXCR4 mediated drugs resistance and improved anticancer effects in vivo. Collectively, our findings confirmed that CXCR4 promoted GICs proliferation via the KLF5/BCL2L12 dependent pathway, which may enrich the understanding of GICs and help drive the design of efficacious therapeutic strategies.
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Affiliation(s)
- Yao Wu
- Department of Neurosurgery, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yu Hu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Lingli Tang
- Department of Neurology, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Senlin Yin
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Liang Lv
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Peizhi Zhou
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
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Prognostic Significance of JMJD3 Expression in Pleural Mesotheliomas. JOURNAL OF MOLECULAR PATHOLOGY 2021. [DOI: 10.3390/jmp2030019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pleural mesothelioma is a disease associated with asbestos exposure and patients often have poor prognosis. Biomarkers that can stratify tumours more efficiently are much sought after to enable more personalized treatment options and predict prognosis. Jumonji domain-containing protein D3 (JMJD3) has variable expression in a range of tumours. However, there has been much discordance in the immunohistochemical labelling of JMJD3 between cancers at different sites and ambiguity exists regarding its functional significance. Recent evidence suggests that although nuclear expression of JMJD3 has a demethylase role in most cancers, there are also demethylase-independent actions of JMJD3 that need to be explored including its cytoplasmic expression. We analysed JMJD3 labelling in 99 pleural mesothelioma tissues and correlated nuclear and cytoplasmic expression with survival outcomes. We found that low nuclear and high cytoplasmic expression were associated with poor survival outcomes in our cohort (p = 0.014 and p = 0.041, respectively). Additionally, we found that low nuclear expression of JMJD3 was frequent in the sarcomatoid subtype (p < 0.001). Finally, we showed that cytoplasmic labelling is an independent prognostic marker of poor survival. Our cohort only contained a small number of tumours with high cytoplasmic expression of JMJD3, and a larger cohort study may provide clearer stratification.
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Epigenetic regulation of TGF-β-induced EMT by JMJD3/KDM6B histone H3K27 demethylase. Oncogenesis 2021; 10:17. [PMID: 33637682 PMCID: PMC7910473 DOI: 10.1038/s41389-021-00307-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 01/26/2021] [Accepted: 02/04/2021] [Indexed: 11/22/2022] Open
Abstract
Transforming growth factor-β (TGF-β) signaling pathways are well-recognized for their role in proliferation and epithelial–mesenchymal transition (EMT) of cancer cells, but much less is understood about their contribution to interactions with other signaling events. Recent studies have indicated that crosstalk between TGF-β and Ras signaling makes a contribution to TGF-β-mediated EMT. Here, we demonstrate that Jumonji domain containing-3 (JMJD3 also called KDM6B) promotes TGF-β-mediated Smad activation and EMT in Ras-activated lung cancer cells. JMJD3 in lung cancer patients was significantly increased and JMJD3 expression in lung tumor tissues was correlated with expression of K-Ras or H-Ras in particular, and its expression was regulated by Ras activity in lung cancer cells. JMJD3 promotes TGF-β-induced Smad activation and EMT in Ras-activated lung cancer cells through the induction of syntenin, a protein that regulates TGF-β receptor activation upon ligand binding. Tissue array and ChIP analysis revealed that JMJD3 epigenetically induces syntenin expression by directly regulating H3K27 methylation levels. Mechanical exploration identified a physical and functional association of JMJD3 with syntenin presiding over the TGF-β in Ras-activated lung cancer cells. Taken together, these findings provide new insight into the mechanisms by which JMJD3 promotes syntenin expression resulting in oncogenic Ras cooperation with TGF-β to promote EMT.
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The Functions of the Demethylase JMJD3 in Cancer. Int J Mol Sci 2021; 22:ijms22020968. [PMID: 33478063 PMCID: PMC7835890 DOI: 10.3390/ijms22020968] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 12/09/2022] Open
Abstract
Cancer is a major cause of death worldwide. Epigenetic changes in response to external (diet, sports activities, etc.) and internal events are increasingly implicated in tumor initiation and progression. In this review, we focused on post-translational changes in histones and, more particularly, the tri methylation of lysine from histone 3 (H3K27me3) mark, a repressive epigenetic mark often under- or overexpressed in a wide range of cancers. Two actors regulate H3K27 methylation: Jumonji Domain-Containing Protein 3 demethylase (JMJD3) and Enhancer of zeste homolog 2 (EZH2) methyltransferase. A number of studies have highlighted the deregulation of these actors, which is why this scientific review will focus on the role of JMJD3 and, consequently, H3K27me3 in cancer development. Data on JMJD3’s involvement in cancer are classified by cancer type: nervous system, prostate, blood, colorectal, breast, lung, liver, ovarian, and gastric cancers.
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Sanders LM, Cheney A, Seninge L, van den Bout A, Chen M, Beale HC, Kephart ET, Pfeil J, Learned K, Lyle AG, Bjork I, Haussler D, Salama SR, Vaske OM. Identification of a differentiation stall in epithelial mesenchymal transition in histone H3-mutant diffuse midline glioma. Gigascience 2020; 9:giaa136. [PMID: 33319914 PMCID: PMC7736793 DOI: 10.1093/gigascience/giaa136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/17/2020] [Accepted: 11/05/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Diffuse midline gliomas with histone H3 K27M (H3K27M) mutations occur in early childhood and are marked by an invasive phenotype and global decrease in H3K27me3, an epigenetic mark that regulates differentiation and development. H3K27M mutation timing and effect on early embryonic brain development are not fully characterized. RESULTS We analyzed multiple publicly available RNA sequencing datasets to identify differentially expressed genes between H3K27M and non-K27M pediatric gliomas. We found that genes involved in the epithelial-mesenchymal transition (EMT) were significantly overrepresented among differentially expressed genes. Overall, the expression of pre-EMT genes was increased in the H3K27M tumors as compared to non-K27M tumors, while the expression of post-EMT genes was decreased. We hypothesized that H3K27M may contribute to gliomagenesis by stalling an EMT required for early brain development, and evaluated this hypothesis by using another publicly available dataset of single-cell and bulk RNA sequencing data from developing cerebral organoids. This analysis revealed similarities between H3K27M tumors and pre-EMT normal brain cells. Finally, a previously published single-cell RNA sequencing dataset of H3K27M and non-K27M gliomas revealed subgroups of cells at different stages of EMT. In particular, H3.1K27M tumors resemble a later EMT stage compared to H3.3K27M tumors. CONCLUSIONS Our data analyses indicate that this mutation may be associated with a differentiation stall evident from the failure to proceed through the EMT-like developmental processes, and that H3K27M cells preferentially exist in a pre-EMT cell phenotype. This study demonstrates how novel biological insights could be derived from combined analysis of several previously published datasets, highlighting the importance of making genomic data available to the community in a timely manner.
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Affiliation(s)
- Lauren M Sanders
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Allison Cheney
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Lucas Seninge
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Anouk van den Bout
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Marissa Chen
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Holly C Beale
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Ellen Towle Kephart
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Jacob Pfeil
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Katrina Learned
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - A Geoffrey Lyle
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Isabel Bjork
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - David Haussler
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Howard Hughes Medical Institute, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Sofie R Salama
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Howard Hughes Medical Institute, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Olena M Vaske
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
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Peng L, Zhu N, Mao J, Huang L, Yang Y, Zhou Z, Wang L, Wu B. Expression levels of CXCR4 and CXCL12 in patients with rheumatoid arthritis and its correlation with disease activity. Exp Ther Med 2020; 20:1925-1934. [PMID: 32782501 PMCID: PMC7401245 DOI: 10.3892/etm.2020.8950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 02/26/2020] [Indexed: 12/15/2022] Open
Abstract
The present study aimed to investigate the expression levels of C-X-C motif chemokine receptor 4 (CXCR4) and CXC ligand 12 (CXCL12) in patients with rheumatoid arthritis (RA) and the correlation with disease activity. In total, 60 patients with RA were selected as the study group, comprising of 28 patients in active-stage and 32 patients in remission-stage. In addition, 60 patients with osteoarthritis were selected as the control group. Western blotting and ELISA were used to detect the expression of CXCR4 and CXCL12, respectively. The Spearman's correlation test was used to analyze correlations between CXCR4 and CXCL12, and erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), disease activity score 28 (DAS28) scores and rheumatoid factor (RF). The present results suggested that CXCR4 and CXCL12 expression levels in the serum and joint synovial fluid of the study group were significantly higher compared with the control group (P<0.05). Moreover, CXCR4 and CXCL12 expression levels in the RA-active group were higher compared with the remission (P<0.05) and control groups (P<0.01). The Pearson test results suggested that the expression levels of CXCR4 and CXCL12 in the serum and joint synovial fluid of patients with RA had a positive correlation with the ESR, CRP, RF and DAS28 scores (P<0.05). CXCL12 and CXCR4 were highly expressed in the serum and joint synovial fluid of patients with RA, and these expression levels were positively correlated with ESR, CRP, RF and DAS28 scores. Therefore, these clinical parameters may be used as indicators to evaluate the disease activity of patients with RA.
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Affiliation(s)
- Liping Peng
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Ning Zhu
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Jing Mao
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Li Huang
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Yameng Yang
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Zhengju Zhou
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Li Wang
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
| | - Bin Wu
- Department of Rheumatology and Immunology, First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
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Xu X, Ye Y, Wang X, Lu B, Guo Z, Wu S. JMJD3-regulated expression of IL-6 is involved in the proliferation and chemosensitivity of acute myeloid leukemia cells. Biol Chem 2020; 402:815-824. [PMID: 33742970 DOI: 10.1515/hsz-2020-0345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 03/11/2021] [Indexed: 12/25/2022]
Abstract
Emerging evidence shows that histone modification and its related regulators are involved in the progression and chemoresistance of multiple tumors including acute myeloid leukemia cells (AML). Our present study found that the expression of histone lysine demethylase Jumonji domain containing-3 (JMJD3) was increased in AML cells as compared with that in human primary bone marrow (HPBM) cells. Knockdown of JMJD3 can decrease the proliferation of AML cells and increase the chemosensitivity of daunorubicin (DNR) and cytarabine (Ara-C). By screening the expression of cytokines involved in AML progression, we found that knockdown of JMJD3 can inhibit the expression of interleukin-6 (IL-6). Recombinant IL-6 (rIL-6) can attenuate si-JMJD3-suppressed proliferation of AML cells. Mechanistically, JMJD3 can positively regulate the promoter activity and transcription of IL-6 mRNA, while had no effect on its mRNA stability. Further, JMJD3 can regulate the expression of p65, which can directly bind with promoter of IL-6 to increase its transcription. Over expression of p65 significantly attenuated si-JMJD3-suppressed expression of IL-6. Collectively, we revealed that JMJD3 can regulate the proliferation and chemosensitivity of AML cells via upregulation of IL-6. It suggested that JMJD3 might be a potential therapy target for AML treatment.
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Affiliation(s)
- Xiaojun Xu
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen518107, China
- Department of Hematology, Zhongshan Hospital of Sun Yat-Sen University, Zhongshan528403, China
| | - Yongbin Ye
- Department of Hematology, Zhongshan Hospital of Sun Yat-Sen University, Zhongshan528403, China
| | - Xiaobo Wang
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen518107, China
| | - Bo Lu
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen518107, China
| | - Ziwen Guo
- Department of Hematology, Zhongshan Hospital of Sun Yat-Sen University, Zhongshan528403, China
| | - Shunjie Wu
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen518107, China
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