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Li Q, Lv H, Chen Y, Shen J, Shi J, Yan F, Wang S, Zhou C. Monocytes to lymphocytes multiplying platelets ratio as an early indicator of acute kidney injury in cardiac surgery with cardiopulmonary bypass: a retrospective analysis. Ren Fail 2024; 46:2364776. [PMID: 38912831 PMCID: PMC11198127 DOI: 10.1080/0886022x.2024.2364776] [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: 11/16/2023] [Accepted: 06/01/2024] [Indexed: 06/25/2024] Open
Abstract
OBJECTIVE The monocyte-to-lymphocyte multiplying platelets ratio (MLPR) is a novel systemic inflammatory marker, deriving from the monocyte-to-lymphocyte ratio (MLR). However, the link between MLPR and acute kidney injury following cardiac surgery (CSA-AKI) with cardiopulmonary bypass (CPB) has not been investigated yet. We comprehensively explored the potential linear and nonlinear relationship between MLPR or MLR and CSA-AKI. METHODS Data of patients who underwent cardiac surgery with CPB between December 2018 and April 2021 were retrospectively collected at Fuwai Hospital, Beijing, China. MLPR was defined as monocyte count (×109/L) × 1000/(lymphocyte count (×109/L) × platelets (×109/L)). MLR was defined as monocyte count (×109/L)/lymphocyte count (×109/L). Logistic regression and restricted cubic spline (RCS) were used for linear and nonlinear analysis. The primary outcome was postoperative AKI within 48 h of after cardiac surgery. RESULTS Of the 2420 patients screened, 2387 eligible patients were enrolled in the final analysis; the mean age was 54.7 years, and 1501 [62.9%] were men. The incidence of AKI was 25.8%. Logistic regression showed that MLPR (odds ratio [OR] = 1.31, 95% confidence interval [CI]: 1.16-1.48, p < .001) and MLR (OR = 3.06, 95% CI: 1.29-7.29, p = .012) were independent risk factors for AKI. Moreover, in the RCS model with adjustment for age (median: 56), female sex, and history of diabetes, a significant statistical difference was detected between preoperative MLPR, MLR, and AKI (p for non-linearity <.001). The subgroup analyses revealed similar results. CONCLUSIONS The study revealed a nonlinear relationship between MLPR and MLR with AKI. MLPR exhibited a J-shaped curve, and MLR showed a favorable S-shaped curve in relation to AKI. Particularly, MLPR emerges as a promising clinical composite index for early CSA-AKI prediction. These findings emphasize the significance of MLPR as a valuable tool in clinical practice for timely identification and management of CSA-AKI.
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Affiliation(s)
- Qian Li
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong Lv
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuye Chen
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingjia Shen
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jia Shi
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fuxia Yan
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Sheng Wang
- Center for Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chenghui Zhou
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Center for Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Favere K, Van Hecke M, Eens S, Bosman M, Stobbelaar K, Hotterbeekx A, Kumar-Singh S, L Delputte P, Fransen E, De Sutter J, Guns PJ, Roskams T, Heidbuchel H. The natural history of CVB3 myocarditis in C57BL/6J mice: an extended in-depth characterization. Cardiovasc Pathol 2024; 72:107652. [PMID: 38750778 DOI: 10.1016/j.carpath.2024.107652] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/03/2024] [Accepted: 05/06/2024] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND AND AIMS Viral infections are the leading cause of myocarditis. Besides acute cardiac complications, late-stage sequelae such as myocardial fibrosis may develop, importantly impacting the prognosis. Coxsackievirus B3 (CVB)-induced myocarditis in mice is the most commonly used translational model to study viral myocarditis and has provided the majority of our current understanding of the disease pathophysiology. Nevertheless, the late stages of disease, encompassing fibrogenesis and arrhythmogenesis, have been underappreciated in viral myocarditis research to date. The present study investigated the natural history of CVB-induced myocarditis in C57BL/6J mice, expanding the focus beyond the acute phase of disease. In addition, we studied the impact of sex and inoculation dose on the disease course. METHODS AND RESULTS C57BL/6J mice (12 weeks old; n=154) received a single intraperitoneal injection with CVB to induce viral myocarditis, or vehicle (PBS) as control. Male mice (n=92) were injected with 5 × 105 (regular dose) (RD) or 5 × 106 (high dose) (HD) plaque-forming units of CVB, whereas female mice received the RD only. Animals were sacrificed 1, 2, 4, 8, and 11 weeks after CVB or PBS injection. Virally inoculated mice developed viral disease with a temporary decline in general condition and weight loss, which was less pronounced in female animals (P<.001). In male CVB mice, premature mortality occurred between days 8 and 23 after inoculation (RD: 21%, HD: 20%), whereas all female animals survived. Over the course of disease, cardiac inflammation progressively subsided, with faster resolution in female mice. There were no substantial group differences in the composition of the inflammatory cell infiltrates: predominance of cytotoxic T cells at day 7 and 14, and a switch from arginase1-reactive macrophages to iNOS-reactive macrophages from day 7 to 14 were the main findings. There was concomitant development and maturation of different patterns of myocardial fibrosis, with enhanced fibrogenesis in male mice. Virus was almost completely cleared from the heart by day 14. Serum biomarkers of cardiac damage and cardiac expression of remodeling genes were temporarily elevated during the acute phase of disease. Cardiac CTGF gene upregulation was less prolonged in female CVB animals. In vivo electrophysiology studies at weeks 8 and 11 demonstrated that under baseline conditions (i.e. in the absence of proarrhythmogenic drugs), ventricular arrhythmias could only be induced in CVB animals. The cumulative arrhythmia burden throughout the entire stimulation protocol was not significantly different between CVB and control groups. CONCLUSION CVB inoculation in C57BL/6J mice represents a model of acute self-limiting viral myocarditis, with progression to different patterns of myocardial fibrosis. Sex, but not inoculation dose, seems to modulate the course of disease.
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Affiliation(s)
- Kasper Favere
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; Department of Cardiology, Antwerp University Hospital, 2650 Antwerp, Belgium; Department of Internal Medicine, Ghent University, 9000 Ghent, Belgium.
| | - Manon Van Hecke
- Translational Cell & Tissue Research, Department of Imaging & Pathology, University of Leuven, 3000 Leuven, Belgium
| | - Sander Eens
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610 Antwerp, Belgium
| | - Matthias Bosman
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium
| | - Kim Stobbelaar
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, 2610 Antwerp, Belgium
| | - An Hotterbeekx
- Molecular Pathology Group, FGGW-Laboratory of Cell Biology and Histology, University of Antwerp, 2610 Antwerp, Belgium
| | - Samir Kumar-Singh
- Molecular Pathology Group, FGGW-Laboratory of Cell Biology and Histology, University of Antwerp, 2610 Antwerp, Belgium
| | - Peter L Delputte
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, 2610 Antwerp, Belgium
| | - Erik Fransen
- Centre for Medical Genetics, University of Antwerp, 2610 Antwerp, Belgium
| | - Johan De Sutter
- Department of Internal Medicine, Ghent University, 9000 Ghent, Belgium
| | - Pieter-Jan Guns
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium
| | - Tania Roskams
- Translational Cell & Tissue Research, Department of Imaging & Pathology, University of Leuven, 3000 Leuven, Belgium
| | - Hein Heidbuchel
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; Department of Cardiology, Antwerp University Hospital, 2650 Antwerp, Belgium
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Quin C, DeJong EN, McNaughton AJM, Buttigieg MM, Basrai S, Abelson S, Larché MJ, Rauh MJ, Bowdish DME. Chronic TNF in the aging microenvironment exacerbates Tet2 loss-of-function myeloid expansion. Blood Adv 2024; 8:4169-4180. [PMID: 38924753 PMCID: PMC11334836 DOI: 10.1182/bloodadvances.2023011833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 06/11/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
ABSTRACT Somatic mutations in the TET2 gene occur more frequently with age, imparting an intrinsic hematopoietic stem cells (HSCs) advantage and contributing to a phenomenon termed clonal hematopoiesis of indeterminate potential (CHIP). Individuals with TET2-mutant CHIP have a higher risk of developing myeloid neoplasms and other aging-related conditions. Despite its role in unhealthy aging, the extrinsic mechanisms driving TET2-mutant CHIP clonal expansion remain unclear. We previously showed an environment containing tumor necrosis factor (TNF) favors TET2-mutant HSC expansion in vitro. We therefore postulated that age-related increases in TNF also provide an advantage to HSCs with TET2 mutations in vivo. To test this hypothesis, we generated mixed bone marrow chimeric mice of old wild-type (WT) and TNF-/- genotypes reconstituted with WT CD45.1+ and Tet2-/- CD45.2+ HSCs. We show that age-associated increases in TNF dramatically increased the expansion of Tet2-/- cells in old WT recipient mice, with strong skewing toward the myeloid lineage. This aberrant myelomonocytic advantage was mitigated in old TNF-/- recipient mice, suggesting that TNF signaling is essential for the expansion Tet2-mutant myeloid clones. Examination of human patients with rheumatoid arthritis with clonal hematopoiesis revealed that hematopoietic cells carrying certain mutations, including in TET2, may be sensitive to reduced TNF bioactivity following blockade with adalimumab. This suggests that targeting TNF may reduce the burden of some forms of CHIP. To our knowledge, this is the first evidence to demonstrate that TNF has a causal role in driving TET2-mutant CHIP in vivo. These findings highlight TNF as a candidate therapeutic target to control TET2-mutant CHIP.
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Affiliation(s)
- Candice Quin
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON, Canada
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Erica N. DeJong
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON, Canada
| | - Amy J. M. McNaughton
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, Queen’s University, Kingston, ON, Canada
| | - Marco M. Buttigieg
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, Queen’s University, Kingston, ON, Canada
| | - Salman Basrai
- Ontario Institute for Cancer Research, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Sagi Abelson
- Ontario Institute for Cancer Research, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Maggie J. Larché
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Michael J. Rauh
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, Queen’s University, Kingston, ON, Canada
| | - Dawn M. E. Bowdish
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON, Canada
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Zhao G, Gu Y, Wang Z, Chen Y, Xia X. The clinical value of inflammation index in predicting ICU mortality of critically ill patients with intracerebral hemorrhage. Front Public Health 2024; 12:1373585. [PMID: 39157528 PMCID: PMC11327062 DOI: 10.3389/fpubh.2024.1373585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 07/24/2024] [Indexed: 08/20/2024] Open
Abstract
Background The inflammatory response holds paramount significance in the context of intracerebral hemorrhage (ICH) and exhibits a robust correlation with mortality rates. Biological markers such as the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), systemic immune inflammation index (SII), and systemic inflammatory response index (SIRI) play crucial roles in influencing the systemic inflammatory response following ICH. This study aims to compare the predictive efficacy of NLR, PLR, LMR, SII, and SIRI concerning the risk of mortality in the intensive care unit (ICU) among critically ill patients with ICH. Such a comparison seeks to elucidate their early warning capabilities in the management and treatment of ICH. Methods Patients with severe ICH requiring admission to the ICU were screened from the Medical Information Marketplace for Intensive Care (MIMIC-IV) database. The outcomes studied included ICU mortality and 30 day ICU hospitalization rates, based on tertiles of the NLR index level. To explore the relationship between the NLR index and clinical outcomes in critically ill patients with ICH, we utilized receiver operating characteristic (ROC) analysis, decision curve analysis (DCA), and multivariate logistic regression analysis. Results A total of 869 patients (51.9% male) were included in the study, with an ICU mortality rate of 22.9% and a 30 day ICU hospitalization rate of 98.4%. Among the five indicators examined, both the ROC curve and DCA indicated that NLR (AUC: 0.660, 95%CI: 0.617-0.703) had the highest predictive ability for ICU mortality. Moreover, this association remained significant even after adjusting for other confounding factors during multivariate analysis (HR: 3.520, 95%CI: 2.039-6.077). Based on the results of the multivariate analysis, incorporating age, albumin, lactic acid, NLR, and GCS score as variables, we developed a nomogram to predict ICU mortality in critically ill patients with ICH. Conclusion NLR emerges as the most effective predictor of ICU mortality risk among critically ill patients grappling with ICH when compared to the other four indicators. Furthermore, the integration of albumin and lactic acid indicators into the NLR nomogram enhances the ability to promptly identify ICU mortality in individuals facing severe ICH.
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Affiliation(s)
- Guang Zhao
- Department of Emergency Medicine, The First People’s Hospital of Kunshan, Kunshan, China
| | - Yuting Gu
- Department of Emergency Medicine, The First People’s Hospital of Kunshan, Kunshan, China
| | - Zhaoxiang Wang
- Department of Endocrinology, The First People’s Hospital of Kunshan, Kunshan, China
| | - Yuyang Chen
- Department of Emergency Medicine, The First People’s Hospital of Kunshan, Kunshan, China
| | - Xiaohua Xia
- Department of Emergency Medicine, The First People’s Hospital of Kunshan, Kunshan, China
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5
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Liu Y, Liu X, Dorizas CA, Hao Z, Lee RK. Macrophages Modulate Optic Nerve Crush Injury Scar Formation and Retinal Ganglion Cell Function. Invest Ophthalmol Vis Sci 2024; 65:22. [PMID: 39140963 PMCID: PMC11328886 DOI: 10.1167/iovs.65.10.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024] Open
Abstract
Purpose Optic nerve (ON) injuries can result in vision loss via structural damage and cellular injury responses. Understanding the immune response, particularly the role of macrophages, in the cellular response to ON injury is crucial for developing therapeutic approaches which affect ON injury repair. The present study investigates the role of macrophages in ON injury response, fibrotic scar formation, and retinal ganglion cell (RGC) function. Methods The study utilizes macrophage Fas-induced apoptosis (MaFIA) mice to selectively deplete hematogenous macrophages and explores the impact macrophages have on ON injury responses. Histological and immunofluorescence analyses were used to evaluate macrophage expression levels and fibrotic scar formation. Pattern electroretinogram (PERG) recordings were used to assess RGC function as result of ON injury. Results Successful macrophage depletion was induced in MaFIA mice, which led to reduced fibrotic scar formation in the ON post-injury. Despite an increase in activated macrophages in the retina, RGC function was preserved, as demonstrated by normal PERG waveforms for up to 2 months post-injury. The study suggests a neuroprotective role for macrophage depletion in ON damage repair and highlights the complex immune response to ON injury. Conclusions To our knowledge, this study is the first to use MaFIA mice to demonstrate that targeted depletion of hematogenous macrophages leads to a significant reduction in scar size and the preservation of RGC functionality after ON injury. These findings highlight the key role of hematogenous macrophages in the response to ON injury and opens new avenues for therapeutic interventions in ON injuries. Future research should focus on investigating the distinct roles of macrophage subtypes in ON injury and potential macrophage-associated molecular targets to improve ON regeneration and repair.
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Affiliation(s)
- Yuan Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Xiangxiang Liu
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Christopher A Dorizas
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Zixuan Hao
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Richard K Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
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Ho KL, Yong PH, Lim SH, Ng ZX. Peperomia pellucida (L.) Kunth suppresses glycation-induced inflammatory response in human retinal pigment epithelial cell line ARPE-19 via JAK-STAT3 signaling. Arch Pharm (Weinheim) 2024:e2400299. [PMID: 39037823 DOI: 10.1002/ardp.202400299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/03/2024] [Accepted: 07/08/2024] [Indexed: 07/24/2024]
Abstract
The formation of advanced glycation end product (AGE) is a risk factor for diabetic retinopathy. Since the current treatment for diabetic retinopathy is accompanied by side effects, preliminary findings have suggested Peperomia pellucida (L.) Kunth as a potential alternative therapeutic option for diabetic retinopathy. This study aimed to elucidate the anti-inflammatory mechanism of P. pellucida in the AGE-stimulated human retinal pigment epithelial cell line ARPE-19. Phytochemical analysis revealed phenylpronanoids, terpenes, and fatty acids in P. pellucida. Through in vitro cell viability assay, the P. pellucida methanolic extract (IC50 = 8.70 mg/mL) and ethyl acetate fraction (IC50 = 7.34 mg/mL) were considered as non toxic for ARPE-19. AGE induced an inflammatory response in ARPE-19 by upregulating the gene (2.4-5.8-fold) and protein (1.4-2.3-fold) expression of signal transducer and activator of transcription 3 (STAT3), interleukin-8 (IL-8), monocyte chemoattractant protein-1, matrix metalloproteinase 2, and vascular endothelial growth factor. At 1.5 mg/mL, P. pellucida methanolic extract suppressed IL-8 expression (p < 0.05), implying its anti-inflammatory action at the early inflammatory stage through the Janus kinase (JAK)-STAT3 pathway. The methanolic extract also restored the ARPE-19 viability under AGE-induced inflammatory stress. The downregulation of inflammatory biomarkers along the JAK-STAT3 pathway suggested P. pellucida as a promising anti-inflammatory source for diabetic retinopathy.
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Affiliation(s)
- Keat Lam Ho
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, Malaysia
| | - Phaik Har Yong
- School of Bioscience, Faculty of Pharmacy and Biomedical Sciences, MAHSA University, Jenjarom, Selangor, Malaysia
| | - Siew Huah Lim
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Zhi Xiang Ng
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, Malaysia
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Popovics P, Silver SV, Uchtmann KS, Arendt LM, Vezina CM, Ricke WA. CCR2 + monocytes/macrophages drive steroid hormone imbalance-related prostatic fibrosis. Sci Rep 2024; 14:15736. [PMID: 38977751 PMCID: PMC11231243 DOI: 10.1038/s41598-024-65574-4] [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: 04/12/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024] Open
Abstract
Benign Prostatic Hyperplasia (BPH) is a complex condition leading to Lower Urinary Tract Symptoms in aging men, characterized by cellular proliferation, smooth muscle dysfunction, inflammation, and fibrosis. While BPH is known to involve heightened macrophage infiltration, the specific contribution of infiltrating monocytes/macrophages to the disease mechanism remains uncertain. This research explores the impact of reducing circulating monocytes and subsequently limiting their tissue infiltration by using Ccr2 knockout (Ccr2-KO) mice. Ccr2-KO and wild type mice were implanted with testosterone and estradiol (T + E2, 25 mg + 2.5 mg) pellets. Urinary function was assessed via weekly void spot assays over 12 weeks, and prostatic macrophage levels were visualized and quantified in tissue sections using an F4/80 antibody. Additionally, Ki-67 staining was used to evaluate cell proliferation, and picrosirius red staining to assess collagen accumulation. Increased voiding frequency which developed in T + E2 mice, was significantly ameliorated in Ccr2-KO mice, however, both Ccr2-KO and wild type (WT) mice showed increased bladder weights after three month, representing a hypertrophic response to bladder outlet obstruction. T + E2 substantially increased the density of macrophages in WT but not Ccr2-KO mouse prostate. Proliferation rate, as indicated by Ki-67 positivity, was elevated in the vental and anterior prostate lobes but was only marginally reduced in Ccr2-KO mice. Most importantly, a significant prostatic collagen accumulation was observed in WT mice that was markedly reduced by Ccr2 deficiency post T + E2 treatment. The absence of Ccr2 mitigates urinary dysfunction and alters prostatic macrophage levels and collagen accumulation in steroid hormone imbalance. These findings suggest a crucial role for monocyte infiltration, giving rise to macrophages or other cell derivatives, to drive fibrosis.
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Affiliation(s)
- Petra Popovics
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA.
- The Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23501, USA.
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA.
- George M. O'Brien Center of Research Excellence, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA.
| | - Samara V Silver
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
- The Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23501, USA
| | - Kristen S Uchtmann
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA
- George M. O'Brien Center of Research Excellence, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Lisa M Arendt
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Chad M Vezina
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA
- George M. O'Brien Center of Research Excellence, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - William A Ricke
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA.
- George M. O'Brien Center of Research Excellence, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA.
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Li N, Steiger S, Zhong M, Lu M, Lei Y, Tang C, Chen J, Guo Y, Li J, Zhang D, Li J, Zhu E, Zheng Z, Lichtnekert J, Chen Y, Wang X. IRF8 maintains mononuclear phagocyte and neutrophil function in acute kidney injury. Heliyon 2024; 10:e31818. [PMID: 38845872 PMCID: PMC11153194 DOI: 10.1016/j.heliyon.2024.e31818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024] Open
Abstract
Immune cells are key players in acute tissue injury and inflammation, including acute kidney injury (AKI). Their development, differentiation, activation status, and functions are mediated by a variety of transcription factors, such as interferon regulatory factor 8 (IRF8) and IRF4. We speculated that IRF8 has a pathophysiologic impact on renal immune cells in AKI and found that IRF8 is highly expressed in blood type 1 conventional dendritic cells (cDC1s), monocytes, monocyte-derived dendritic cells (moDCs) and kidney biopsies from patients with AKI. In a mouse model of ischemia‒reperfusion injury (IRI)-induced AKI, Irf8 -/- mice displayed increased tubular cell necrosis and worsened kidney dysfunction associated with the recruitment of a substantial amount of monocytes and neutrophils but defective renal infiltration of cDC1s and moDCs. Mechanistically, global Irf8 deficiency impaired moDC and cDC1 maturation and activation, as well as cDC1 proliferation, antigen uptake, and trafficking to lymphoid organs for T-cell priming in ischemic AKI. Moreover, compared with Irf8 +/+ mice, Irf8 -/- mice exhibited increased neutrophil recruitment and neutrophil extracellular trap (NET) formation following AKI. IRF8 primarily regulates cDC1 and indirectly neutrophil functions, and thereby protects mice from kidney injury and inflammation following IRI. Our results demonstrate that IRF8 plays a predominant immunoregulatory role in cDC1 function and therefore represents a potential therapeutic target in AKI.
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Affiliation(s)
- Na Li
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
- Scientific Research Center, Edmond H. Fischer Translational Medical Research Laboratory, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Stefanie Steiger
- Renal Division, Department of Medicine IV, Ludwig-Maximilians-University Hospital, Ludwig-Maximilian-University Munich, 80336, Munich, Bavaria, Germany
| | - Ming Zhong
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Meihua Lu
- Department of Geriatrics, People's Hospital of Banan District, 401320, Chongqing, China
| | - Yan Lei
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Chun Tang
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Jiasi Chen
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Yao Guo
- Scientific Research Center, Edmond H. Fischer Translational Medical Research Laboratory, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Jinhong Li
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Dengyang Zhang
- Scientific Research Center, Edmond H. Fischer Translational Medical Research Laboratory, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Jingyi Li
- Department of Pulmonary & Critical Care Medicine, Shenzhen Hospital of Southern Medical University, 518107, Shenzhen, China
| | - Enyi Zhu
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Zhihua Zheng
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Julia Lichtnekert
- Renal Division, Department of Medicine IV, Ludwig-Maximilians-University Hospital, Ludwig-Maximilian-University Munich, 80336, Munich, Bavaria, Germany
| | - Yun Chen
- Scientific Research Center, Edmond H. Fischer Translational Medical Research Laboratory, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
| | - Xiaohua Wang
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-Sen University, 518107, Shenzhen, China
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9
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Honkanen M, Narvi E, Ojala VK, Jokilammi A, Rantakari P, Kronqvist P, Kähäri VM, Veräjänkorva E, Kurppa KJ, Rahkila J, Ekambaram R, Savolainen J, Leino R, Elenius K. Immunomodulatory Synthetic Glycocluster Molecule Prevents Melanoma Growth In Vivo. Chembiochem 2024:e202400264. [PMID: 38864514 DOI: 10.1002/cbic.202400264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/13/2024]
Abstract
Triacedimannose (TADM) is a synthetic trivalent acetylated glycocluster and a transmembrane macrophage activator independent of the mannose receptor. TADM induces Th1-type immune responses and suppresses Th2-type cytokines in acute and chronic allergic inflammation models in vivo. We, therefore, wanted to test whether TADM could also facilitate anti-tumour tissue responses similar to what has been observed for the immune checkpoint inhibitors, such as anti-PD-1 and anti-CTLA-4. A syngeneic mouse melanoma model was selected since metastatic melanoma has been successfully targeted by checkpoint inhibitors in the clinic. TADM inhibited the growth of B16 mouse melanoma tumours at levels comparable to an anti-PD-1 antibody. TADM-treated tumours encompassed significantly more apoptotic cells as measured by TUNEL staining, and interferon-gamma (IFN-γ) expression was increased in the spleens of TADM-treated mice compared to untreated controls. TADM-treated mice also demonstrated increased Ly6 C low monocytes and neutrophils in the spleens. However, TADM-treated tumours showed no discernible differences in infiltrating immune cells. TADM can alone suppress the growth of melanoma tumours. TADM likely activates M1 type macrophages, type N1 neutrophils, and CD8+ and Th1 T cells, suppressing the type 2 immune response milieu of melanoma tumour with a strong type 1 immune response.
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Affiliation(s)
- Meija Honkanen
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
- Turku Graduate School of Molecular Medicine, University of Turku, Turku, Finland
| | - Elli Narvi
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
| | - Veera K Ojala
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
- Turku Graduate School of Molecular Medicine, University of Turku, Turku, Finland
- Turku Bioscience Center, University of Turku and Åbo Akademi University, Tykistökatu 6, Turku, Finland
| | - Anne Jokilammi
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
- Turku Bioscience Center, University of Turku and Åbo Akademi University, Tykistökatu 6, Turku, Finland
| | - Pia Rantakari
- Turku Bioscience Center, University of Turku and Åbo Akademi University, Tykistökatu 6, Turku, Finland
- InFLAMES Flagship, University of Turku and Åbo Akademi University, Turku, Finland
| | - Pauliina Kronqvist
- Department of Pathology, University of Turku and Turku University Hospital, Kiinamyllynkatu 10, Turku, Finland
| | - Veli-Matti Kähäri
- Department of Dermatology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, Turku, Finland
- FICANWest Cancer Research Laboratory, University of Turku and Turku University Hospital, Turku, Finland
| | - Esko Veräjänkorva
- Plastic and General Surgery, Turku University Hospital, Kiinamyllynkatu 4-8, Turku, Finland
| | - Kari J Kurppa
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
| | - Jani Rahkila
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, Henrikinkatu 2, Turku, Finland
| | - Ramesh Ekambaram
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, Henrikinkatu 2, Turku, Finland
| | - Johannes Savolainen
- Department of Pulmonary Diseases and Clinical Allergology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, Turku, Finland
| | - Reko Leino
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, Henrikinkatu 2, Turku, Finland
| | - Klaus Elenius
- Institute of Biomedicine and MediCity Research Laboratory, University of Turku, Tykistökatu 6A, Turku, Finland
- Turku Bioscience Center, University of Turku and Åbo Akademi University, Tykistökatu 6, Turku, Finland
- Department of Oncology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, Turku, Finland
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10
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Haase M, Comlekoglu T, Petrucciani A, Peirce SM, Blemker SS. Agent-based model demonstrates the impact of nonlinear, complex interactions between cytokinces on muscle regeneration. eLife 2024; 13:RP91924. [PMID: 38828844 PMCID: PMC11147512 DOI: 10.7554/elife.91924] [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] [Indexed: 06/05/2024] Open
Abstract
Muscle regeneration is a complex process due to dynamic and multiscale biochemical and cellular interactions, making it difficult to identify microenvironmental conditions that are beneficial to muscle recovery from injury using experimental approaches alone. To understand the degree to which individual cellular behaviors impact endogenous mechanisms of muscle recovery, we developed an agent-based model (ABM) using the Cellular-Potts framework to simulate the dynamic microenvironment of a cross-section of murine skeletal muscle tissue. We referenced more than 100 published studies to define over 100 parameters and rules that dictate the behavior of muscle fibers, satellite stem cells (SSCs), fibroblasts, neutrophils, macrophages, microvessels, and lymphatic vessels, as well as their interactions with each other and the microenvironment. We utilized parameter density estimation to calibrate the model to temporal biological datasets describing cross-sectional area (CSA) recovery, SSC, and fibroblast cell counts at multiple timepoints following injury. The calibrated model was validated by comparison of other model outputs (macrophage, neutrophil, and capillaries counts) to experimental observations. Predictions for eight model perturbations that varied cell or cytokine input conditions were compared to published experimental studies to validate model predictive capabilities. We used Latin hypercube sampling and partial rank correlation coefficient to identify in silico perturbations of cytokine diffusion coefficients and decay rates to enhance CSA recovery. This analysis suggests that combined alterations of specific cytokine decay and diffusion parameters result in greater fibroblast and SSC proliferation compared to individual perturbations with a 13% increase in CSA recovery compared to unaltered regeneration at 28 days. These results enable guided development of therapeutic strategies that similarly alter muscle physiology (i.e. converting extracellular matrix [ECM]-bound cytokines into freely diffusible forms as studied in cancer therapeutics or delivery of exogenous cytokines) during regeneration to enhance muscle recovery after injury.
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Affiliation(s)
- Megan Haase
- University of VirginiaCharlottesvilleUnited States
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11
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Islam H, Tsai SH, Figueiredo C, Jackson GS, Marcotte-Chénard A, Bosak J, Moreno-Cabañas A, Lira FS, Little JP. Direct assessment of leukocyte signalling and cytokine secretion reveals exercise intensity-dependent reductions in anti-inflammatory cytokine action. J Physiol 2024; 602:2717-2736. [PMID: 38776176 DOI: 10.1113/jp286228] [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: 01/04/2024] [Accepted: 04/24/2024] [Indexed: 05/24/2024] Open
Abstract
Circulating interleukin (IL)-6 and IL-10 concentrations are widely used to evaluate the anti-inflammatory effects of exercise but do not capture cytokine action at the cellular level. Whether and how acute exercise impacts anti-inflammatory cytokine action in humans is unknown. To determine how exercise intensity and pattern impact IL-6 and IL-10 action in blood leukocytes, 16 active adults (eight males/eight females; age: 30 ± 3 years; body mass index: 22.8 ± 2.3 kg/m2;V ̇ O 2 peak ${{\dot{V}}_{{{{\mathrm{O}}}_{\mathrm{2}}}{\mathrm{peak}}}}$ : 51 ± 6 mL/kg/min) completed a no-exercise control condition (CTL) or isocaloric bouts of cycling performed below (moderate continuous exercise; MCE) or above (heavy continuous or heavy intermittent exercise; HCE or HIE, respectively) lactate threshold. Venous blood (before, after, 30 min after and 90 min after exercise) was analysed for immune cell subpopulations, plasma cytokine concentrations, anti-inflammatory cytokine action and monocyte phenotype. Exercise induced rapid leukocytosis (P < 0.001) and increased plasma IL-6 (P < 0.001), IL-10 (P = 0.0145) and tumour necrosis factor-⍺ (TNF-⍺) (P = 0.0338) concentrations in an intensity-dependent manner (HCE and/or HIE vs. CTL). These systemic changes coincided with a diminished ability of IL-10/6 to phosphorylate STAT3 (P < 0.001) and inhibit TNF-⍺ secretion (P = 0.0238) in blood leukocytes following HCE and HIE. Monocyte polarization experiments revealed lower CD80 [MCE (P = 0.0933) and HIE (P = 0.0187) vs. CTL] and a tendency for higher CD163 expression (HCE vs. CTL, P = 0.0985), suggesting that hyporesponsiveness to anti-inflammatory cytokine action does not impede the ability of exercise to promote an anti-inflammatory monocyte phenotype. These findings provide novel insights into the immunomodulatory effects of exercise in humans and highlight the importance of directly measuring cellular cytokine action when evaluating the anti-inflammatory effects of exercise. KEY POINTS: Circulating cytokine concentrations are frequently used to evaluate the anti-inflammatory effects of exercise but may not capture changes in cytokine action occurring at the cellular level. We directly assessed anti-inflammatory cytokine action - measured using a combination of intracellular signalling and cytokine secretion ex vivo - in distinct immune cell subpopulations after acute calorie-matched exercise bouts differing in intensity and pattern. Anti-inflammatory cytokine action was blunted following higher intensity exercise despite corresponding increases in circulating cytokine concentrations and immune cell counts. Changes in cytokine action were not explained by changes in cytokine receptor expression on circulating immune cells. Our findings provide new insights into the immunomodulatory effects of exercise in humans and highlight the importance of directly measuring cellular cytokine action when evaluating the anti-inflammatory effects of exercise.
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Affiliation(s)
- Hashim Islam
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Shun-Hsi Tsai
- Department of Physical Education and Sport Sciences, National Taiwan Normal University, Taipei, Taiwan
| | - Caíque Figueiredo
- Exercise and Immunometabolism Research Group, Department of Physical Education, Post-Graduation Program in Movement Sciences, State University of São Paulo (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Garett S Jackson
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Alexis Marcotte-Chénard
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Johannes Bosak
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | | | - Fabio S Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, Post-Graduation Program in Movement Sciences, State University of São Paulo (UNESP), Presidente Prudente, São Paulo, Brazil
- Centro de Investigação em Desporto e Atividade Física, University of Coimbra, Coimbra, Portugal
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
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12
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Liu Z, Liu W, Han M, Wang M, Li Y, Yao Y, Duan Y. A comprehensive review of natural product-derived compounds acting on P2X7R: The promising therapeutic drugs in disorders. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155334. [PMID: 38554573 DOI: 10.1016/j.phymed.2023.155334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 12/30/2023] [Indexed: 04/01/2024]
Abstract
BACKGROUND The P2X7 receptor (P2X7R) is known to play a significant role in regulating various pathological processes associated with immune regulation, neuroprotection, and inflammatory responses. It has emerged as a potential target for the treatment of diseases. In addition to chemically synthesized small molecule compounds, natural products have gained attention as an important source for discovering compounds that act on the P2X7R. PURPOSE To explore the research progress made in the field of natural product-derived compounds that act on the P2X7R. METHODS The methods employed in this review involved conducting a thorough search of databases, include PubMed, Web of Science and WIKTROP, to identify studies on natural product-derived compounds that interact with P2X7R. The selected studies were then analyzed to categorize the compounds based on their action on the receptor and to evaluate their therapeutic applications, chemical properties, and pharmacological actions. RESULTS The natural product-derived compounds acting on P2X7R can be classified into three categories: P2X7R antagonists, compounds inhibiting P2X7R expression, and compounds regulating the signaling pathway associated with P2X7R. Moreover, highlight the therapeutic applications, chemical properties and pharmacological actions of these compounds, and indicate areas that require further in-depth study. Finally, discuss the challenges of the natural products-derived compounds exploration, although utilizing compounds from natural products for new drug research offers unique advantages, problems related to solubility, content, and extraction processes still exist. CONCLUSION The detailed information in this review will facilitate further development of P2X7R antagonists and potential therapeutic strategies for P2X7R-associated disorders.
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Affiliation(s)
- Zhenling Liu
- Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou 450018, China
| | - Wenjin Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Mengyao Han
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Mingzhu Wang
- Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou 450018, China
| | - Yinchao Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Yongfang Yao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China; Pingyuan Laboratory (Zhengzhou University), Zhengzhou 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China.
| | - Yongtao Duan
- Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou 450018, China; Henan International Joint Laboratory of Prevention and Treatment of Pediatric Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou 450018, China; Henan Neurodevelopment Engineering Research Center for Children, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou 450018, China.
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13
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Najibi AJ, Lane RS, Sobral MC, Bovone G, Kang S, Freedman BR, Gutierrez Estupinan J, Elosegui-Artola A, Tringides CM, Dellacherie MO, Williams K, Ijaz H, Müller S, Turley SJ, Mooney DJ. Durable lymph-node expansion is associated with the efficacy of therapeutic vaccination. Nat Biomed Eng 2024:10.1038/s41551-024-01209-3. [PMID: 38710838 DOI: 10.1038/s41551-024-01209-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/30/2024] [Indexed: 05/08/2024]
Abstract
Following immunization, lymph nodes dynamically expand and contract. The mechanical and cellular changes enabling the early-stage expansion of lymph nodes have been characterized, yet the durability of such responses and their implications for adaptive immunity and vaccine efficacy are unknown. Here, by leveraging high-frequency ultrasound imaging of the lymph nodes of mice, we report more potent and persistent lymph-node expansion for animals immunized with a mesoporous silica vaccine incorporating a model antigen than for animals given bolus immunization or standard vaccine formulations such as alum, and that durable and robust lymph-node expansion was associated with vaccine efficacy and adaptive immunity for 100 days post-vaccination in a mouse model of melanoma. Immunization altered the mechanical and extracellular-matrix properties of the lymph nodes, drove antigen-dependent proliferation of immune and stromal cells, and altered the transcriptional features of dendritic cells and inflammatory monocytes. Strategies that robustly maintain lymph-node expansion may result in enhanced vaccination outcomes.
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Affiliation(s)
- Alexander J Najibi
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Ryan S Lane
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Miguel C Sobral
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Giovanni Bovone
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Shawn Kang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Joel Gutierrez Estupinan
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Alberto Elosegui-Artola
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Institute for Bioengineering of Catalonia, Barcelona, Spain
| | - Christina M Tringides
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Harvard Program in Biophysics, Harvard University, Cambridge, MA, USA
| | - Maxence O Dellacherie
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Katherine Williams
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Hamza Ijaz
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Sören Müller
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Shannon J Turley
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.
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14
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Mullin JA, Rahmani E, Kiick KL, Sullivan MO. Growth factors and growth factor gene therapies for treating chronic wounds. Bioeng Transl Med 2024; 9:e10642. [PMID: 38818118 PMCID: PMC11135157 DOI: 10.1002/btm2.10642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 06/01/2024] Open
Abstract
Chronic wounds are an unmet clinical need affecting millions of patients globally, and current standards of care fail to consistently promote complete wound closure and prevent recurrence. Disruptions in growth factor signaling, a hallmark of chronic wounds, have led researchers to pursue growth factor therapies as potential supplements to standards of care. Initial studies delivering growth factors in protein form showed promise, with a few formulations reaching clinical trials and one obtaining clinical approval. However, protein-form growth factors are limited by instability and off-target effects. Gene therapy offers an alternative approach to deliver growth factors to the chronic wound environment, but safety concerns surrounding gene therapy as well as efficacy challenges in the gene delivery process have prevented clinical translation. Current growth factor delivery and gene therapy approaches have primarily used single growth factor formulations, but recent efforts have aimed to develop multi-growth factor approaches that are better suited to address growth factor insufficiencies in the chronic wound environment, and these strategies have demonstrated improved efficacy in preclinical studies. This review provides an overview of chronic wound healing, emphasizing the need and potential for growth factor therapies. It includes a summary of current standards of care, recent advances in growth factor, cell-based, and gene therapy approaches, and future perspectives for multi-growth factor therapeutics.
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Affiliation(s)
- James A. Mullin
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelawareUSA
| | - Erfan Rahmani
- Department of Biomedical EngineeringUniversity of DelawareNewarkDelawareUSA
| | - Kristi L. Kiick
- Department of Biomedical EngineeringUniversity of DelawareNewarkDelawareUSA
- Department of Materials Science and EngineeringUniversity of DelawareNewarkDelawareUSA
| | - Millicent O. Sullivan
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelawareUSA
- Department of Biomedical EngineeringUniversity of DelawareNewarkDelawareUSA
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15
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İpek G, Tanaçan A, Peker A, Ağaoğlu Z, Kara Ö, Şahin D. Systemic Inflammation Response Index as a diagnostic and prognostic predictor of intrahepatic cholestasis of pregnancy: A case-control study from a tertiary center. Int J Gynaecol Obstet 2024; 165:717-722. [PMID: 37922220 DOI: 10.1002/ijgo.15216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/15/2023] [Accepted: 10/12/2023] [Indexed: 11/05/2023]
Abstract
OBJECTIVE To investigate the diagnostic and prognostic value of the Systemic Inflammation Response Index (SIRI) in intrahepatic cholestasis of pregnancy (ICP). METHODS The present case-control study comprised 386 participants, including 192 women with ICP and 194 gestational age-matched pregnant women. Increased fasting biliary acid (FBA) levels (≥10 μmol/L) were accepted as ICP criteria. SIRI values were calculated for the first trimester (SIRI 1), time of diagnosis (SIRI 2), and time of delivery (SIRI 3). The ICP and control groups were compared based on SIRI values, and on obstetrical and neonatal outcomes. The ICP subgroups based on FBA levels (severe ICP [FBA ≥40 μmol/L] and mild ICP [FBA <40 μmol/L]) were also compared for SIRI and pregnancy outcomes. RESULTS Adverse outcomes were significantly higher in the ICP group (P < 0.001). SIRI 2 and SIRI 3 showed negative significant differences between the ICP and control groups, with P values of 0.001 and 0.009, respectively. A significant difference in ICP severity subgroups (P = 0.046) was observed for SIRI 3. In receiver operating characteristics curve analyses, optimal cut-off values for the prediction of ICP were found to be 2.01 and 2.08 for SIRI 2 and SIRI 3, respectively. A cut-off value 1.74 was determined to predict the disease severity for SIRI 3. CONCLUSION SIRI has clinical significance in accordance with the inflammatory etiology of ICP. SIRI might be used with other clinical and laboratory findings for ICP diagnosis and prediction.
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Affiliation(s)
- Göksun İpek
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Atakan Tanaçan
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Ayça Peker
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Zahid Ağaoğlu
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Özgür Kara
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Dilek Şahin
- Division of Perinatology, Department of Obstetrics and Gynecology, Turkish Ministry of Health Ankara City Hospital, Ankara, Turkey
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16
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Allen J, Isaza-Correa J, Kelly L, Melo A, Mahony A, McDonald D, Molloy EJ. Severe neurological impairment and immune function: altered neutrophils, monocytes, T lymphocytes, and inflammasome activation. Pediatr Res 2024; 95:1611-1616. [PMID: 38233513 PMCID: PMC11126379 DOI: 10.1038/s41390-024-03023-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/18/2023] [Accepted: 12/26/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND Infections cause significant morbidity and mortality in children with Severe Neurological Impairment (SNI). Alterations in immune cell numbers and function in children with neurodisability have been reported. We aimed to characterise neutrophil, monocyte and lymphocyte proportions and activation, at baseline and in response to stimulation with lipopolysaccharide, in children with SNI compared to healthy controls. METHODS Whole blood samples of children with SNI and controls were incubated in the presence or absence of lipopolysaccharide (10 ng/ml). Monocyte and neutrophil function (Cluster of Differentiation (CD)11b, (TLR)-4 and CD66b expression) and lymphocytes were assessed by flow cytometry. Expression of genes involved in the inflammasome (NLR Family Pyrin Domain Containing(NLRP)-3, Apoptosis-Associated Speck-like protein (ASC) and Interleukin(IL)1β) were assessed by PCR. RESULTS Monocytes and CD8+ T cells were lower in children with SNI (n = 14). CD66b, was hyporesponsive and monocyte TLR4 was hyperresponsive to lipopolysaccharide in children with SNI compared to controls (n = 14). NLRP3 expression was higher at baseline and IL1β expression was not upregulated in response to lipopolysaccharide in children with SNI in contrast to controls. CONCLUSION We have found significant differences in immune regulation in children with SNI compared to controls which may provide a useful therapeutic target in the future. IMPACT Children with SNI have reduced monocyte and CD8+ T cells. Neutrophils and monocytes in children with SNI show altered markers of activation in response to lipopolysaccharide. Expression of NLRP3 at the RNA level was higher at baseline in children with SNI. This study adds to the existing literature that children with neurological impairment have altered inflammatory and immune cell responses. This may provide a useful therapeutic target to reduce infection-related morbidity and mortality, and tertiary neurological injury in the future.
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Affiliation(s)
- John Allen
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Translational Medicine Institute (TTMI) Trinity College Dublin, Dublin, Ireland
- Department of Neurodisability, Children's Health Ireland (CHI) at Tallaght, Dublin, Ireland
| | - Johana Isaza-Correa
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Translational Medicine Institute (TTMI) Trinity College Dublin, Dublin, Ireland
| | - Lynne Kelly
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Translational Medicine Institute (TTMI) Trinity College Dublin, Dublin, Ireland
| | - Ashanty Melo
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Translational Medicine Institute (TTMI) Trinity College Dublin, Dublin, Ireland
| | - Aoife Mahony
- Department of Neurodisability, Children's Health Ireland (CHI) at Tallaght, Dublin, Ireland
| | - Denise McDonald
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Department of Neurodisability, Children's Health Ireland (CHI) at Tallaght, Dublin, Ireland
| | - Eleanor J Molloy
- Discipline of Paediatrics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland.
- Trinity Research in Childhood Centre (TRiCC), Trinity College Dublin, the University of Dublin, Dublin, Ireland.
- Trinity Translational Medicine Institute (TTMI) Trinity College Dublin, Dublin, Ireland.
- Department of Neurodisability, Children's Health Ireland (CHI) at Tallaght, Dublin, Ireland.
- Department of Neonatology, CHI at Crumlin, Dublin, Ireland.
- Coombe Hospital, Dublin, Ireland.
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17
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Li F, He Q, Peng H, Zhou J, Zhong C, Liang G, Li W, Xu D. The systemic inflammation indexes after admission predict in-hospital mortality in patients with extensive burns. Burns 2024; 50:980-990. [PMID: 38336497 DOI: 10.1016/j.burns.2024.01.020] [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: 06/28/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
PURPOSE To explore the clinical value of various complete blood count (CBC)-derived inflammation indicators to predict in-hospital mortality in patients with extensive burns. METHODS Systemic inflammation indexes, including lymphocyte-platelet ratio (LPR), neutrophil-lymphocyte ratio (NLR), neutrophil-monocyte ratio (NMR), monocyte-lymphocyte ratio (MLR), neutrophil-to-lymphocyte * platelet (NLPR), systemic inflammation index (SII), and systemic inflammation response index (SIRI) on days 1, 3, and 7 after admission were calculated in 135 patients with extensive burns. RESULTS We included 135 patients with extensive burns, including 97 survivors and 38 non-survivors. After adjusting for confounders, only the LPR on day 1, NLPR on days 3 and 7 were significantly associated with survival (OR= 1.237, 1.097, 1.104; 95 % CI: 1.055-1.451, 1.002-1.202, 1.005-1.212; respectively) in the analysis of multivariate logistic regression. The optimum cutoff values of the LPR on day 1 and NLPR on day 3 were 6.37 and 8.06, and the area under the curves (AUC) were 0.695 and 0.794, respectively. The AUC of NLPR on day 7 had the highest value, 0.814, and the optimum cut-off value was 3.84. The efficacy of LPR on day 1, NLPR on days 3 and 7 combined with the burn prognostic score index in predicting the prognosis of patients was higher than that of the burn index alone, and the three composite inflammatory indexes combined with PBI had the highest efficacy in predicting the prognosis (AUC = 0.994). Kaplan-Meier survival analysis showed poor prognosis in patients with higher LPR on day 1 and higher NLPR on days 3 and 7 (log-rank χ2 =9.623,31.564, 20.771, respectively; P < 0.01). CONCLUSIONS LPR on day 1 and NLPR on days 3 and 7 after admission are reliable predictors of prognosis in patients with severe extensive burns. The combination of the burn prognostic score index, LPR on day 1, and NLPR on days 3 and 7 was superior to the burn indexes alone in predicting a patient's prognosis.
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Affiliation(s)
- Fuying Li
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Quanyong He
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Peng
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Jianda Zhou
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Chi Zhong
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Geao Liang
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Wengjuan Li
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China
| | - Dan Xu
- Department of Burns and Plastic Surgery, the third Xiangya Hospital, Central South University, Changsha, China.
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18
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Dash SP, Gupta S, Sarangi PP. Monocytes and macrophages: Origin, homing, differentiation, and functionality during inflammation. Heliyon 2024; 10:e29686. [PMID: 38681642 PMCID: PMC11046129 DOI: 10.1016/j.heliyon.2024.e29686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 05/01/2024] Open
Abstract
Monocytes and macrophages are essential components of innate immune system and have versatile roles in homeostasis and immunity. These phenotypically distinguishable mononuclear phagocytes play distinct roles in different stages, contributing to the pathophysiology in various forms making them a potentially attractive therapeutic target in inflammatory conditions. Several pieces of evidence have supported the role of different cell surface receptors expressed on these cells and their downstream signaling molecules in initiating and perpetuating the inflammatory response. In this review, we discuss the current understanding of the monocyte and macrophage biology in inflammation, highlighting the role of chemoattractants, inflammasomes, and integrins in the function of monocytes and macrophages during events of inflammation. This review also covers the recent therapeutic interventions targeting these mononuclear phagocytes at the cellular and molecular levels.
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Affiliation(s)
- Shiba Prasad Dash
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Saloni Gupta
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Pranita P. Sarangi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
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19
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Pan YH, Tsai HW, Lin HA, Chen CY, Chao CC, Lin SF, Hou SK. Early Identification of Sepsis-Induced Acute Kidney Injury by Using Monocyte Distribution Width, Red-Blood-Cell Distribution, and Neutrophil-to-Lymphocyte Ratio. Diagnostics (Basel) 2024; 14:918. [PMID: 38732331 PMCID: PMC11083534 DOI: 10.3390/diagnostics14090918] [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: 03/29/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Sepsis-induced acute kidney injury (AKI) is a common complication in patients with severe illness and leads to increased risks of mortality and chronic kidney disease. We investigated the association between monocyte distribution width (MDW), red-blood-cell volume distribution width (RDW), neutrophil-to-lymphocyte ratio (NLR), sepsis-related organ-failure assessment (SOFA) score, mean arterial pressure (MAP), and other risk factors and sepsis-induced AKI in patients presenting to the emergency department (ED). This retrospective study, spanning 1 January 2020, to 30 November 2020, was conducted at a university-affiliated teaching hospital. Patients meeting the Sepsis-2 consensus criteria upon presentation to our ED were categorized into sepsis-induced AKI and non-AKI groups. Clinical parameters (i.e., initial SOFA score and MAP) and laboratory markers (i.e., MDW, RDW, and NLR) were measured upon ED admission. A logistic regression model was developed, with sepsis-induced AKI as the dependent variable and laboratory parameters as independent variables. Three multivariable logistic regression models were constructed. In Model 1, MDW, initial SOFA score, and MAP exhibited significant associations with sepsis-induced AKI (area under the curve [AUC]: 0.728, 95% confidence interval [CI]: 0.668-0.789). In Model 2, RDW, initial SOFA score, and MAP were significantly correlated with sepsis-induced AKI (AUC: 0.712, 95% CI: 0.651-0.774). In Model 3, NLR, initial SOFA score, and MAP were significantly correlated with sepsis-induced AKI (AUC: 0.719, 95% CI: 0.658-0.780). Our novel models, integrating MDW, RDW, and NLR with initial SOFA score and MAP, can assist with the identification of sepsis-induced AKI among patients with sepsis presenting to the ED.
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Affiliation(s)
- Yi-Hsiang Pan
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
| | - Hung-Wei Tsai
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
| | - Hui-An Lin
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei 110, Taiwan
- Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Ching-Yi Chen
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chun-Chieh Chao
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
- Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Sheng-Feng Lin
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
- School of Public Health, College of Public Health, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Center of Evidence-Based Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Sen-Kuang Hou
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan; (Y.-H.P.); (H.-W.T.); (H.-A.L.); (C.-C.C.)
- Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
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20
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Huang S, Wang Y, Zhu J, Li S, Lin S, Xie W, Chen S, Wang Y, Wang L, Jin Q, Weng Y, Yang D. Systemic Inflammatory Response Index, a Potential Inflammatory Biomarker in Disease Severity of Myasthenia Gravis: A Pilot Retrospective Study. J Inflamm Res 2024; 17:2563-2574. [PMID: 38686359 PMCID: PMC11057634 DOI: 10.2147/jir.s449324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
Purpose Myasthenia gravis (MG) is a chronic autoimmune disease caused by neuromuscular junction (NMJ) dysfunction. Our current understanding of MG's inflammatory component remains poor. The systemic inflammatory response index (SIRI) presents a promising yet unexplored biomarker for assessing MG severity. This study aimed to investigate the potential relationship between SIRI and MG disease severity. Patients and Methods We conducted a retrospective analysis of clinical data from 171 MG patients admitted between January 2016 and June 2021. Patients with incomplete data, other autoimmune diseases, or comorbidities were excluded. Disease severity was evaluated using the Myasthenia Gravis Foundation of America (MGFA) classification and Myasthenia Gravis Activities of Daily Living (MG-ADL) on admission. The association between SIRI and disease severity was assessed through logistic regression analysis, along with receiver operating characteristic (ROC) curve and decision curve analysis (DCA) comparisons with established inflammation indicators. Results After exclusion, 143 patients were analyzed in our study. SIRI levels significantly differed between patients with higher and lower disease severity (p < 0.001). Univariate logistic regression showed that SIRI had a significant effect on high disease severity (OR = 1.376, 95% CI 1.138-1.664, p = 0.001). This association remained significant even after adjusting for age, sex, disease duration, history of MG medication and thymoma (OR = 1.308, 95% CI 1.072-1.597, p = 0.008). Additionally, a positive correlation between SIRI and MG-ADL was observed (r = 0.232, p = 0.008). Significant interactions were observed between SIRI and immunosuppressor (p interaction = 0.001) and intravenous immunoglobulin (p interaction = 0.005). DCA demonstrated the superior net clinical benefit of SIRI compared to other markers when the threshold probability was around 0.2. Conclusion Our findings indicate a strong independent association between SIRI and disease severity in MG, suggesting SIRI's potential as a valuable biomarker for MG with superior clinical benefit to currently utilized markers.
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Affiliation(s)
- Suwen Huang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Yanchu Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jinrong Zhu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Shengqi Li
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Shenyi Lin
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Wei Xie
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Siyao Chen
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Yukai Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Lingsheng Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Qiaoqiao Jin
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Yiyun Weng
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Dehao Yang
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
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21
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Winkler CW, Evans AB, Carmody AB, Lack JB, Woods TA, Peterson KE. C-C motif chemokine receptor 2 and 7 synergistically control inflammatory monocyte recruitment but the infecting virus dictates monocyte function in the brain. Commun Biol 2024; 7:494. [PMID: 38658802 PMCID: PMC11043336 DOI: 10.1038/s42003-024-06178-6] [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: 03/29/2023] [Accepted: 04/10/2024] [Indexed: 04/26/2024] Open
Abstract
Inflammatory monocytes (iMO) are recruited from the bone marrow to the brain during viral encephalitis. C-C motif chemokine receptor (CCR) 2 deficiency substantially reduces iMO recruitment for most, but not all encephalitic viruses. Here we show CCR7 acts synergistically with CCR2 to control this process. Following Herpes simplex virus type-1 (HSV-1), or La Crosse virus (LACV) infection, we find iMO proportions are reduced by approximately half in either Ccr2 or Ccr7 knockout mice compared to control mice. However, Ccr2/Ccr7 double knockouts eliminate iMO recruitment following infection with either virus, indicating these receptors together control iMO recruitment. We also find that LACV induces a more robust iMO recruitment than HSV-1. However, unlike iMOs in HSV-1 infection, LACV-recruited iMOs do not influence neurological disease development. LACV-induced iMOs have higher expression of proinflammatory and proapoptotic but reduced mitotic, phagocytic and phagolysosomal transcripts compared to HSV-1-induced iMOs. Thus, virus-specific activation of iMOs affects their recruitment, activation, and function.
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MESH Headings
- Animals
- Receptors, CCR2/metabolism
- Receptors, CCR2/genetics
- Mice
- Monocytes/immunology
- Monocytes/metabolism
- Monocytes/virology
- Mice, Knockout
- Brain/virology
- Brain/metabolism
- Brain/immunology
- Herpesvirus 1, Human/physiology
- La Crosse virus/genetics
- La Crosse virus/physiology
- Receptors, CCR7/metabolism
- Receptors, CCR7/genetics
- Encephalitis, California/virology
- Encephalitis, California/genetics
- Encephalitis, California/metabolism
- Encephalitis, California/immunology
- Mice, Inbred C57BL
- Inflammation/metabolism
- Inflammation/virology
- Female
- Male
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Affiliation(s)
- Clayton W Winkler
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA.
| | - Alyssa B Evans
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT, USA
| | - Aaron B Carmody
- Research Technologies Branch, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Justin B Lack
- NIAID Collaborative Bioinformatics Resource, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Tyson A Woods
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
| | - Karin E Peterson
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
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22
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Zelikson N, Ben S, Caspi M, Tarabe R, Shaleve Y, Pri-Paz Basson Y, Tayer-Shifman O, Goldberg E, Kivity S, Rosin-Arbesfeld R. Wnt signaling regulates chemokine production and cell migration of circulating human monocytes. Cell Commun Signal 2024; 22:229. [PMID: 38622714 PMCID: PMC11020454 DOI: 10.1186/s12964-024-01608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024] Open
Abstract
The β-catenin dependent canonical Wnt signaling pathway plays a crucial role in maintaining normal homeostasis. However, when dysregulated, Wnt signaling is closely associated with various pathological conditions, including inflammation and different types of cancer.Here, we show a new connection between the leukocyte inflammatory response and the Wnt signaling pathway. Specifically, we demonstrate that circulating human primary monocytes express distinct Wnt signaling components and are susceptible to stimulation by the classical Wnt ligand-Wnt-3a. Although this stimulation increased the levels of β-catenin protein, the expression of the classical Wnt-target genes was not affected. Intriguingly, treating circulating human monocytes with Wnt-3a induces the secretion of cytokines and chemokines, enhancing monocyte migration. Mechanistically, the enhanced monocyte migration in response to Wnt stimuli is mediated through CCL2, a strong monocyte-chemoattractant.To further explore the physiological relevance of these findings, we conducted ex-vivo experiments using blood samples of patients with rheumatic joint diseases (RJD) - conditions where monocytes are known to be dysfunctional. Wnt-3a generated a unique cytokine expression profile, which was significantly distinct from that observed in monocytes obtained from healthy donors.Thus, our results provide the first evidence that Wnt-3a may serve as a potent stimulator of monocyte-driven immune processes. These findings contribute to our understanding of inflammatory diseases and, more importantly, shed light on the role of a core signaling pathway in the circulation.
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Affiliation(s)
- Natalie Zelikson
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shaina Ben
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Michal Caspi
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Raneen Tarabe
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yonatan Shaleve
- Department of Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yael Pri-Paz Basson
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Oshrat Tayer-Shifman
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Elad Goldberg
- Department of Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shaye Kivity
- Rheumatology Unit, Meir Medical Center, Kfar Saba, Israel
- Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Rina Rosin-Arbesfeld
- Department of Clinical Microbiology and Immunology, Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel.
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23
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Marinho A, Seabra CL, Lima SAC, Lobo-da-Cunha A, Reis S, Nunes C. Empowering Naringin's Anti-Inflammatory Effects through Nanoencapsulation. Int J Mol Sci 2024; 25:4152. [PMID: 38673736 PMCID: PMC11050564 DOI: 10.3390/ijms25084152] [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: 02/21/2024] [Revised: 04/04/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Abundant in citrus fruits, naringin (NAR) is a flavonoid that has a wide spectrum of beneficial health effects, including its anti-inflammatory activity. However, its use in the clinic is limited due to extensive phase I and II first-pass metabolism, which limits its bioavailability. Thus, lipid nanoparticles (LNPs) were used to protect and concentrate NAR in inflamed issues, to enhance its anti-inflammatory effects. To target LNPs to the CD44 receptor, overexpressed in activated macrophages, functionalization with hyaluronic acid (HA) was performed. The formulation with NAR and HA on the surface (NAR@NPsHA) has a size below 200 nm, a polydispersity around 0.245, a loading capacity of nearly 10%, and a zeta potential of about 10 mV. In vitro studies show the controlled release of NAR along the gastrointestinal tract, high cytocompatibility (L929 and THP-1 cell lines), and low hemolytic activity. It was also shown that the developed LNPs can regulate inflammatory mediators. In fact, NAR@NPsHA were able to decrease TNF-α and CCL-3 markers expression by 80 and 90% and manage to inhibit the effects of LPS by around 66% for IL-1β and around 45% for IL-6. Overall, the developed LNPs may represent an efficient drug delivery system with an enhanced anti-inflammatory effect.
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Affiliation(s)
- Andreia Marinho
- LAQV, REQUIMTE, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (A.M.); (C.L.S.); (S.R.)
- LAQV, REQUIMTE, Faculdade de Ciências, Universidade do Porto, R. do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Catarina Leal Seabra
- LAQV, REQUIMTE, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (A.M.); (C.L.S.); (S.R.)
| | - Sofia A. C. Lima
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal;
| | - Alexandre Lobo-da-Cunha
- Departamento de Microscopia, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal;
| | - Salette Reis
- LAQV, REQUIMTE, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (A.M.); (C.L.S.); (S.R.)
| | - Cláudia Nunes
- LAQV, REQUIMTE, Faculdade de Farmácia, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; (A.M.); (C.L.S.); (S.R.)
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal;
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24
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Ying K, Xin W, Xu Y, Lv D, Zhu H, Li Y, Xu W, Yan C, Li Y, Cheng H, Chen E, Ma G, Zhang X, Ke Y. NanoSHP099-Targeted SHP2 Inhibition Boosts Ly6C low Monocytes/Macrophages Differentiation to Accelerate Thrombolysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308166. [PMID: 38247197 PMCID: PMC10987109 DOI: 10.1002/advs.202308166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/06/2024] [Indexed: 01/23/2024]
Abstract
Tumor-associated thrombus (TAT) accounts for a high proportion of venous thromboembolism. Traditional thrombolysis and anticoagulation methods are not effective due to various complications and contraindications, which can easily lead to patients dying from TAT rather than the tumor itself. These clinical issues demonstrate the need to research diverse pathways for adjuvant thrombolysis in antitumor therapy. Previously, the phenotypic and functional transformation of monocytes/macrophages is widely reported to be involved in intratribal collagen regulation. This study finds that myeloid deficiency of the oncogene SHP2 sensitizes Ly6Clow monocyte/macrophage differentiation and can alleviate thrombus organization by increasing thrombolytic Matrix metalloproteinase (MMP) 2/9 activities. Moreover, pharmacologic inhibition by SHP099, examined in mouse lung metastatic tumor models, reduces tumor and thrombi burden in tumor metastatic lung tissues. Furthermore, SHP099 increases intrathrombus Ly6Clow monocyte/macrophage infiltration and exhibits thrombolytic function at high concentrations. To improve the thrombolytic effect of SHP099, NanoSHP099 is constructed to achieve the specific delivery of SHP099. NanoSHP099 is identified to be simultaneously enriched in tumor and thrombus foci, exerting dual tumor-suppression and thrombolysis effects. NanoSHP099 presents a superior thrombus dissolution effect than that of the same dosage of SHP099 because of the higher Ly6Clow monocyte/macrophage proportion and MMP2/MMP9 collagenolytic activities in organized thrombi.
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Affiliation(s)
- Kejing Ying
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Wanghao Xin
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Yiming Xu
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Dandan Lv
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Huiqi Zhu
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Yeping Li
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Wangting Xu
- Department of RespiratoryFirst Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouChina
- Department of Pathology and Pathophysiologyand Department of Respiratory Medicine at Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang310058China
| | - Chao Yan
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Yiqing Li
- Department of Pathology and PathophysiologyZhejiang University School of MedicineHangzhouZhejiang310058China
| | - Hongqiang Cheng
- Department of Pathology and PathophysiologyZhejiang University School of MedicineHangzhouZhejiang310058China
| | - Enguo Chen
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Guofeng Ma
- Department of Pulmonary and Critical Care MedicineRegional Medical Center for National Institute of Respiratory DiseasesSir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
| | - Xue Zhang
- Department of Pathology and Pathophysiologyand Department of Respiratory Medicine at Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang310058China
| | - Yuehai Ke
- Department of Pathology and Pathophysiologyand Department of Respiratory Medicine at Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang310058China
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Wang Y, Li Z, Chen W, Wang J, Huang Z, Yu XJ, Zhang YJ, Zheng L, Xu J. C/EBPα mediates the maturation and antitumor functions of macrophages in human hepatocellular carcinoma. Cancer Lett 2024; 585:216638. [PMID: 38266805 DOI: 10.1016/j.canlet.2024.216638] [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: 07/04/2023] [Revised: 10/29/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024]
Abstract
Recent studies have suggested that therapeutic upregulation of CCAAT/enhancer binding protein α (C/EBPα) prevents hepatocellular carcinoma (HCC) progression. However, the mechanisms underlying this outcome are not fully understood. In this study, we investigated the expression and functional roles of C/EBPα in human HCC, with a focus on monocytes/macrophages (Mφs). Paraffin-embedded tissues were used to visualize C/EBPα expression and analyze the prognostic value of C/EBPα+ monocytes/Mφs in HCC patients. The underlying regulatory mechanisms were examined using human monocyte-derived Mφs. The results showed that the expression of C/EBPα on monocytes/Mφs was significantly decreased in intra-tumor tissues compared to the corresponding peri-tumor tissues. C/EBPα+ monocytes/Mφs displayed well-differentiation and antitumor capacities, and the accumulation of these cells in tissue was associated with antitumor immune responses and predicted longer overall survival (OS) of HCC patients. Mechanistic studies demonstrated that C/EBPα was required for Mφ maturation and HLA-DR, CD169 and CD86 expression, which initiates antitumor cytotoxic T-cell responses; however, these effects were inhibited by monocyte autocrine IL-6- and IL-1β-induced suppression of mTOR1 signaling. Reprogramming Mφs via the upregulation of C/EBPα may provide a novel strategy for cancer immunotherapy in patients with HCC.
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Affiliation(s)
- Yongchun Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhixiong Li
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Weibai Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Junfeng Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Zhijie Huang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Xing-Juan Yu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Yao-Jun Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Department of Liver Surgery, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Limin Zheng
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China; Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Jing Xu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
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Zou Y, Sun X, Wang Y, Wang Y, Ye X, Tu J, Yu R, Huang P. Integrating single-cell RNA sequencing data to genome-wide association analysis data identifies significant cell types in influenza A virus infection and COVID-19. Brief Funct Genomics 2024; 23:110-117. [PMID: 37340787 DOI: 10.1093/bfgp/elad025] [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: 07/05/2022] [Revised: 02/23/2023] [Accepted: 06/01/2023] [Indexed: 06/22/2023] Open
Abstract
With the global pandemic of COVID-19, the research on influenza virus has entered a new stage, but it is difficult to elucidate the pathogenesis of influenza disease. Genome-wide association studies (GWASs) have greatly shed light on the role of host genetic background in influenza pathogenesis and prognosis, whereas single-cell RNA sequencing (scRNA-seq) has enabled unprecedented resolution of cellular diversity and in vivo following influenza disease. Here, we performed a comprehensive analysis of influenza GWAS and scRNA-seq data to reveal cell types associated with influenza disease and provide clues to understanding pathogenesis. We downloaded two GWAS summary data, two scRNA-seq data on influenza disease. After defining cell types for each scRNA-seq data, we used RolyPoly and LDSC-cts to integrate GWAS and scRNA-seq. Furthermore, we analyzed scRNA-seq data from the peripheral blood mononuclear cells (PBMCs) of a healthy population to validate and compare our results. After processing the scRNA-seq data, we obtained approximately 70 000 cells and identified up to 13 cell types. For the European population analysis, we determined an association between neutrophils and influenza disease. For the East Asian population analysis, we identified an association between monocytes and influenza disease. In addition, we also identified monocytes as a significantly related cell type in a dataset of healthy human PBMCs. In this comprehensive analysis, we identified neutrophils and monocytes as influenza disease-associated cell types. More attention and validation should be given in future studies.
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Affiliation(s)
- Yixin Zou
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xifang Sun
- Department of Mathematics, School of Science, Xi'an Shiyou University, Xi'an, China
| | - Yifan Wang
- Department of Infectious Disease, Jurong Hospital Affiliated to Jiangsu University, Jurong, China
| | - Yidi Wang
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiangyu Ye
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Junlan Tu
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rongbin Yu
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Peng Huang
- Department of Epidemiology, National Vaccine Innovation Platform, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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Li Y, Qin S, Dong L, Qiao S, Wang X, Yu D, Gao P, Hou Y, Quan S, Li Y, Fan F, Zhao X, Ma Y, Gao GF. Long-term effects of Omicron BA.2 breakthrough infection on immunity-metabolism balance: a 6-month prospective study. Nat Commun 2024; 15:2444. [PMID: 38503738 PMCID: PMC10951309 DOI: 10.1038/s41467-024-46692-z] [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: 07/28/2023] [Accepted: 03/06/2024] [Indexed: 03/21/2024] Open
Abstract
There have been reports of long coronavirus disease (long COVID) and breakthrough infections (BTIs); however, the mechanisms and pathological features of long COVID after Omicron BTIs remain unclear. Assessing long-term effects of COVID-19 and immune recovery after Omicron BTIs is crucial for understanding the disease and managing new-generation vaccines. Here, we followed up mild BA.2 BTI convalescents for six-month with routine blood tests, proteomic analysis and single-cell RNA sequencing (scRNA-seq). We found that major organs exhibited ephemeral dysfunction and recovered to normal in approximately six-month after BA.2 BTI. We also observed durable and potent levels of neutralizing antibodies against major circulating sub-variants, indicating that hybrid humoral immunity stays active. However, platelets may take longer to recover based on proteomic analyses, which also shows coagulation disorder and an imbalance between anti-pathogen immunity and metabolism six-month after BA.2 BTI. The immunity-metabolism imbalance was then confirmed with retrospective analysis of abnormal levels of hormones, low blood glucose level and coagulation profile. The long-term malfunctional coagulation and imbalance in the material metabolism and immunity may contribute to the development of long COVID and act as useful indicator for assessing recovery and the long-term impacts after Omicron sub-variant BTIs.
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Affiliation(s)
- Yanhua Li
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Shijie Qin
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- Institute of Pediatrics, Shenzhen Children's Hospital, Shenzhen, 518026, China
| | - Lei Dong
- Department of Clinical Laboratory, Air Force Medical Center, 100142, Beijing, China
| | - Shitong Qiao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Xiao Wang
- School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Dongshan Yu
- Department of Infectious Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330008, China
| | - Pengyue Gao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Yali Hou
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, 030032, China
| | - Shouzhen Quan
- Department of Clinical Laboratory, Air Force Medical Center, 100142, Beijing, China
| | - Ying Li
- Department of Clinical Laboratory, Air Force Medical Center, 100142, Beijing, China
| | - Fengyan Fan
- Department of Clinical Laboratory, Air Force Medical Center, 100142, Beijing, China
| | - Xin Zhao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China.
- University of Chinese Academy of Sciences, 101408, Beijing, China.
- Beijing Life Science Academy, 102209, Beijing, China.
| | - Yueyun Ma
- Department of Clinical Laboratory, Air Force Medical Center, 100142, Beijing, China.
| | - George Fu Gao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China.
- University of Chinese Academy of Sciences, 101408, Beijing, China.
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, 030032, China.
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Shi Z, Liu Z, Wei Y, Zhang R, Deng Y, Li D. The role of dermal fibroblasts in autoimmune skin diseases. Front Immunol 2024; 15:1379490. [PMID: 38545113 PMCID: PMC10965632 DOI: 10.3389/fimmu.2024.1379490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/01/2024] [Indexed: 04/18/2024] Open
Abstract
Fibroblasts are an important subset of mesenchymal cells in maintaining skin homeostasis and resisting harmful stimuli. Meanwhile, fibroblasts modulate immune cell function by secreting cytokines, thereby implicating their involvement in various dermatological conditions such as psoriasis, vitiligo, and atopic dermatitis. Recently, variations in the subtypes of fibroblasts and their expression profiles have been identified in these prevalent autoimmune skin diseases, implying that fibroblasts may exhibit distinct functionalities across different diseases. In this review, from the perspective of their fundamental functions and remarkable heterogeneity, we have comprehensively collected evidence on the role of fibroblasts and their distinct subpopulations in psoriasis, vitiligo, atopic dermatitis, and scleroderma. Importantly, these findings hold promise for guiding future research directions and identifying novel therapeutic targets for treating these diseases.
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Affiliation(s)
| | | | | | | | | | - Dong Li
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Haase M, Comlekoglu T, Petrucciani A, Peirce SM, Blemker SS. Agent-based model demonstrates the impact of nonlinear, complex interactions between cytokines on muscle regeneration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.08.14.553247. [PMID: 37645968 PMCID: PMC10462020 DOI: 10.1101/2023.08.14.553247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Muscle regeneration is a complex process due to dynamic and multiscale biochemical and cellular interactions, making it difficult to identify microenvironmental conditions that are beneficial to muscle recovery from injury using experimental approaches alone. To understand the degree to which individual cellular behaviors impact endogenous mechanisms of muscle recovery, we developed an agent-based model (ABM) using the Cellular Potts framework to simulate the dynamic microenvironment of a cross-section of murine skeletal muscle tissue. We referenced more than 100 published studies to define over 100 parameters and rules that dictate the behavior of muscle fibers, satellite stem cells (SSC), fibroblasts, neutrophils, macrophages, microvessels, and lymphatic vessels, as well as their interactions with each other and the microenvironment. We utilized parameter density estimation to calibrate the model to temporal biological datasets describing cross-sectional area (CSA) recovery, SSC, and fibroblast cell counts at multiple time points following injury. The calibrated model was validated by comparison of other model outputs (macrophage, neutrophil, and capillaries counts) to experimental observations. Predictions for eight model perturbations that varied cell or cytokine input conditions were compared to published experimental studies to validate model predictive capabilities. We used Latin hypercube sampling and partial rank correlation coefficient to identify in silico perturbations of cytokine diffusion coefficients and decay rates to enhance CSA recovery. This analysis suggests that combined alterations of specific cytokine decay and diffusion parameters result in greater fibroblast and SSC proliferation compared to individual perturbations with a 13% increase in CSA recovery compared to unaltered regeneration at 28 days. These results enable guided development of therapeutic strategies that similarly alter muscle physiology (i.e. converting ECM-bound cytokines into freely diffusible forms as studied in cancer therapeutics or delivery of exogenous cytokines) during regeneration to enhance muscle recovery after injury.
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30
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Guo D, Zeng M, Yu M, Shang J, Lin J, Liu L, Yang K, Cao Z. SSR1 and CKAP4 as potential biomarkers for intervertebral disc degeneration based on integrated bioinformatics analysis. JOR Spine 2024; 7:e1309. [PMID: 38222802 PMCID: PMC10782074 DOI: 10.1002/jsp2.1309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 01/16/2024] Open
Abstract
Background Intervertebral disc degeneration (IDD) is a significant cause of low back pain and poses a significant public health concern. Genetic factors play a crucial role in IDD, highlighting the need for a better understanding of the underlying mechanisms. Aim The aim of this study was to identify potential IDD-related biomarkers using a comprehensive bioinformatics approach and validate them in vitro. Materials and Methods In this study, we employed several analytical approaches to identify the key genes involved in IDD. We utilized weighted gene coexpression network analysis (WGCNA), MCODE, LASSO algorithms, and ROC curves to identify the key genes. Additionally, immune infiltrating analysis and a single-cell sequencing dataset were utilized to further explore the characteristics of the key genes. Finally, we conducted in vitro experiments on human disc tissues to validate the significance of these key genes in IDD. Results we obtained gene expression profiles from the GEO database (GSE23130 and GSE15227) and identified 1015 DEGs associated with IDD. Using WGCNA, we identified the blue module as significantly related to IDD. Among the DEGs, we identified 47 hub genes that overlapped with the genes in the blue module, based on criteria of |logFC| ≥ 2.0 and p.adj <0.05. Further analysis using both MCODE and LASSO algorithms enabled us to identify five key genes, of which CKAP4 and SSR1 were validated by GSE70362, demonstrating significant diagnostic value for IDD. Additionally, immune infiltrating analysis revealed that monocytes were significantly correlated with the two key genes. We also analyzed a single-cell sequencing dataset, GSE199866, which showed that both CKAP4 and SSR1 were highly expressed in fibrocartilage chondrocytes. Finally, we validated our findings in vitro by performing real time polymerase chain reaction (RT-PCR) and immunohistochemistry (IHC) on 30 human disc samples. Our results showed that CKAP4 and SSR1 were upregulated in degenerated disc samples. Taken together, our findings suggest that CKAP4 and SSR1 have the potential to serve as disease biomarkers for IDD.
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Affiliation(s)
- Danqing Guo
- Institute of Orthopaedics and Traumatology, The 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
- Guangzhou University of Chinese Medicine the First Affiliated HospitalGuangzhou中国
| | - Min Zeng
- Pathology DepartmentThe 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Miao Yu
- Spinal Surgery DepartmentThe 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Jingjing Shang
- Spinal Surgery DepartmentThe 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Jinxing Lin
- Spinal Surgery DepartmentThe 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Lichu Liu
- Institute of Orthopaedics and Traumatology, The 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Kuangyang Yang
- Institute of Orthopaedics and Traumatology, The 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
| | - Zhenglin Cao
- Spinal Surgery DepartmentThe 8th Clinical Medical College of Guangzhou University of Chinese MedicineFoshanGuangdongChina
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Xu Z, Mao X, Lu X, Shi P, Ye J, Yang X, Fu Q, He C, Su D, Nie Y, Liu L, Wang C, Zhou B, Luo W, Cheng F, Chen H. Dual-Targeting Nanovesicles Carrying CSF1/CD47 Identified from Single-Cell Transcriptomics of Innate Immune Cells in Heart Transplant for Alleviating Acute Rejection. Adv Healthc Mater 2024; 13:e2302443. [PMID: 37962054 DOI: 10.1002/adhm.202302443] [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: 07/29/2023] [Revised: 10/28/2023] [Indexed: 11/15/2023]
Abstract
Although immunosuppressive drugs for targeting T cells are the standard of care in acute transplantation rejection, the role of innate immune cells should not be ignored. Here, single-cell RNA sequencing (scRNA-seq) and flow cytometry are performed to reveal the dynamic changes of innate immune cells within the acute rejection time and find a significantly-increased presence of Ly6G- Ly6C+ inflammatory macrophages and decreased presence of neutrophils among all types of immune cells. Next, to further explore potential targets regulating Ly6G- Ly6C+ inflammatory macrophages, scRNA-seq is used to analyze the reciprocal signaling of both neutrophils and macrophages, along with the surface genes of macrophages. It is found that activating colony-stimulating factor 1/ colony-stimulating factor 1 receptor (CSF1/CSF1R) andcluster of differentiation 47/signal regulatory protein α (CD47/SIRPα) signaling may serve as a strategy to relieve Ly6G- Ly6C+ inflammatory macrophage-mediated early graft rejection. To investigate this hypothesis, CSF1/CD47 dual-targeting nanovesicles (NVs) derived from IFN-γ-stimulated induced pluripotent stem cell-derived mesenchymal stem cells ( iPSC-MSCs )are designed and constructed. It is confirmed that CSF1/CD47 NVs synergistically induce the differentiation of Ly6G- Ly6C- M2 inhibitory macrophages by the CSF1/CSF1R pathway, and inhibit the phagocytosis of inflammatory macrophages and inflammatory response by the CD47/SIRPα pathway, ultimately relieving immune rejection. This study highlights the power of dual-targeting CSF1/CD47 NVs as an immunosuppressant against early innate immune responses with the potential for broad clinical applications.
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Affiliation(s)
- Zhanxue Xu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
- Department of Pharmacy, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, 518107, China
| | - Xiaofan Mao
- Clinical Research Institute, The First People's Hospital of Foshan, NO. 81 North of Lingnan Avenue, Foshan, Guangdong, 528000, China
| | - Xingyu Lu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Peilin Shi
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Jingping Ye
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Xinrui Yang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Qingling Fu
- Centre for Stem Cell Clinical Research and Application, The First Affiliated Hospital, Sun Yat-Sen University, Zhongshan 2nd Road, Guangzhou, Guangdong, 510080, China
| | - Chao He
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Dandan Su
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Yichu Nie
- Clinical Research Institute, The First People's Hospital of Foshan, NO. 81 North of Lingnan Avenue, Foshan, Guangdong, 528000, China
| | - Longshan Liu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Zhongshan 2nd Road, Guangzhou, Guangdong, 510080, China
| | - Changxi Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Zhongshan 2nd Road, Guangzhou, Guangdong, 510080, China
| | - Benjie Zhou
- Department of Pharmacy, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, 518107, China
| | - Wei Luo
- Clinical Research Institute, The First People's Hospital of Foshan, NO. 81 North of Lingnan Avenue, Foshan, Guangdong, 528000, China
| | - Fang Cheng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
| | - Hongbo Chen
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Gongchang Road, Shenzhen, Guangdong, 518107, China
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Sluiter TJ, Tillie RJHA, de Jong A, de Bruijn JBG, Peters HAB, van de Leijgraaf R, Halawani R, Westmaas M, Starink LIW, Quax PHA, Sluimer JC, de Vries MR. Myeloid PHD2 Conditional Knockout Improves Intraplaque Angiogenesis and Vascular Remodeling in a Murine Model of Venous Bypass Grafting. J Am Heart Assoc 2024; 13:e033109. [PMID: 38258662 PMCID: PMC11056143 DOI: 10.1161/jaha.123.033109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Intraplaque angiogenesis occurs in response to atherosclerotic plaque hypoxia, which is driven mainly by highly metabolically active macrophages. Improving plaque oxygenation by increasing macrophage hypoxic signaling, thus stimulating intraplaque angiogenesis, could restore cellular function and neovessel maturation, and decrease plaque formation. Prolyl hydroxylases (PHDs) regulate cellular responses to hypoxia. We therefore aimed to elucidate the role of myeloid PHD2, the dominant PHD isoform, on intraplaque angiogenesis in a murine model for venous bypass grafting. METHODS AND RESULTS Myeloid PHD2 conditional knockout (PHD2cko) and PHD2 wild type mice on an Ldlr-/- background underwent vein graft surgery (n=11-15/group) by interpositioning donor caval veins into the carotid artery of genotype-matched mice. At postoperative day 28, vein grafts were harvested for morphometric and compositional analysis, and blood was collected for flow cytometry. Myeloid PHD2cko induced and improved intraplaque angiogenesis by improving neovessel maturation, which reduced intraplaque hemorrhage. Intima/media ratio was decreased in myeloid PHD2cko vein grafts. In addition, PHD2 deficiency prevented dissection of vein grafts and resulted in an increase in vessel wall collagen content. Moreover, the macrophage proinflammatory phenotype in the vein graft wall was attenuated in myeloid PHD2cko mice. In vitro cultured PHD2cko bone marrow-derived macrophages exhibited an increased proangiogenic phenotype compared with control. CONCLUSIONS Myeloid PHD2cko reduces vein graft disease and ameliorates vein graft lesion stability by improving intraplaque angiogenesis.
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Affiliation(s)
- Thijs J. Sluiter
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenThe Netherlands
| | - Renée J. H. A. Tillie
- Department of Pathology, CARIM School for Cardiovascular SciencesMaastricht University Medical CentreMaastrichtThe Netherlands
| | - Alwin de Jong
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenThe Netherlands
| | - Jenny B. G. de Bruijn
- Department of Pathology, CARIM School for Cardiovascular SciencesMaastricht University Medical CentreMaastrichtThe Netherlands
| | - Hendrika A. B. Peters
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenThe Netherlands
| | | | - Raghed Halawani
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
| | - Michelle Westmaas
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
| | | | - Paul H. A. Quax
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenThe Netherlands
| | - Judith C. Sluimer
- Department of Pathology, CARIM School for Cardiovascular SciencesMaastricht University Medical CentreMaastrichtThe Netherlands
- Centre for Cardiovascular SciencesUniversity of EdinburghEdinburghUnited Kingdom
| | - Margreet R. de Vries
- Department of SurgeryLeiden University Medical CentreLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenThe Netherlands
- Department of SurgeryBrigham and Women’s Hospital, Harvard Medical SchoolBostonMA
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Zhou W, Yuan W, Chen Y, Li C, Hu L, Li Q, Wang J, Xue R, Sun Y, Xia Q, Hu L, Wei Y, He M. Single-cell transcriptomics reveals the pulmonary inflammation induced by inhalation of subway fine particles. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132896. [PMID: 37951166 DOI: 10.1016/j.jhazmat.2023.132896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/28/2023] [Accepted: 10/28/2023] [Indexed: 11/13/2023]
Abstract
People generally take the subway and inevitably inhale the fine particles (PM2.5) on subway platforms. This study revealed whether and how subway PM2.5 causes lung inflammation. Herein, the pulmonary inflammatory response to subway PM2.5 was observed in mice, manifesting as the inflammatory cells infiltration and collagen deposition in tissue, inflammatory cytokine enhancement in bronchoalveolar lavage fluid and Toll-like receptors signal pathway activation in the lungs. Furthermore, single-cell RNA sequencing unearthed subway PM2.5-induced cell-specific responses in the lungs. Twenty immune subsets were identified by the molecular and functional properties. Specific cell populations of CD4+ T and γδ T cells were regarded as the predominant sources of pneumonitis induced by subway PM2.5. Moreover, we demonstrated that the lung inflammatory injury was significantly more attenuated in Rag1-/- mice lacking functional T cells and B cells than that in wild type mice. We proved the slight inflammation of lung tissue in Rag1-/- mice may be dependent on monocytes and neutrophils by activation of the intracellular molecular network. This is the first experimental study on subway PM2.5 causing pulmonary inflammatory damage. It will set an alarm for people who usually travel by subway and efficient measures to reduce PM2.5 should be developed in subway stations.
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Affiliation(s)
- Weilai Zhou
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Wenke Yuan
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yuwei Chen
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Chao Li
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang 110122, China
| | - Liwen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qidian Li
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Jiawei Wang
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Rou Xue
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yuan Sun
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Qing Xia
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Longji Hu
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yuan Wei
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Miao He
- Liaoning Key Laboratory of Environmental Health Damage Research and Assessment, Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China; Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, China.
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Gudenschwager Basso EK, Ju J, Soliman E, de Jager C, Wei X, Pridham KJ, Olsen ML, Theus MH. Immunoregulatory and neutrophil-like monocyte subsets with distinct single-cell transcriptomic signatures emerge following brain injury. J Neuroinflammation 2024; 21:41. [PMID: 38310257 PMCID: PMC10838447 DOI: 10.1186/s12974-024-03032-8] [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: 08/25/2023] [Accepted: 01/26/2024] [Indexed: 02/05/2024] Open
Abstract
Monocytes represent key cellular elements that contribute to the neurological sequela following brain injury. The current study reveals that trauma induces the augmented release of a transcriptionally distinct CD115+/Ly6Chi monocyte population into the circulation of mice pre-exposed to clodronate depletion conditions. This phenomenon correlates with tissue protection, blood-brain barrier stability, and cerebral blood flow improvement. Uniquely, this shifted the innate immune cell profile in the cortical milieu and reduced the expression of pro-inflammatory Il6, IL1r1, MCP-1, Cxcl1, and Ccl3 cytokines. Monocytes that emerged under these conditions displayed a morphological and gene profile consistent with a subset commonly seen during emergency monopoiesis. Single-cell RNA sequencing delineated distinct clusters of monocytes and revealed a key transcriptional signature of Ly6Chi monocytes enriched for Apoe and chitinase-like protein 3 (Chil3/Ym1), commonly expressed in pro-resolving immunoregulatory monocytes, as well as granule genes Elane, Prtn3, MPO, and Ctsg unique to neutrophil-like monocytes. The predominate shift in cell clusters included subsets with low expression of transcription factors involved in monocyte conversion, Pou2f2, Na4a1, and a robust enrichment of genes in the oxidative phosphorylation pathway which favors an anti-inflammatory phenotype. Transfer of this monocyte assemblage into brain-injured recipient mice demonstrated their direct role in neuroprotection. These findings reveal a multifaceted innate immune response to brain injury and suggest targeting surrogate monocyte subsets may foster tissue protection in the brain.
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Affiliation(s)
- Erwin K Gudenschwager Basso
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
- Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Jing Ju
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Eman Soliman
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Caroline de Jager
- Translational, Biology, Medicine and Health Graduate Program, Virginia Tech, Roanoke, VA, 24016, USA
| | - Xiaoran Wei
- School of Neuroscience, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Kevin J Pridham
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Michelle L Olsen
- School of Neuroscience, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Michelle H Theus
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA.
- Center for Engineered Health, Virginia Tech, Blacksburg, VA, 24061, USA.
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Gianopoulos I, Daskalopoulou SS. Macrophage profiling in atherosclerosis: understanding the unstable plaque. Basic Res Cardiol 2024; 119:35-56. [PMID: 38244055 DOI: 10.1007/s00395-023-01023-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/01/2023] [Accepted: 11/01/2023] [Indexed: 01/22/2024]
Abstract
The development and rupture of atherosclerotic plaques is a major contributor to myocardial infarctions and ischemic strokes. The dynamic evolution of the plaque is largely attributed to monocyte/macrophage functions, which respond to various stimuli in the plaque microenvironment. To this end, macrophages play a central role in atherosclerotic lesions through the uptake of oxidized low-density lipoprotein that gets trapped in the artery wall, and the induction of an inflammatory response that can differentially affect the stability of the plaque in men and women. In this environment, macrophages can polarize towards pro-inflammatory M1 or anti-inflammatory M2 phenotypes, which represent the extremes of the polarization spectrum that include Mhem, M(Hb), Mox, and M4 populations. However, this traditional macrophage model paradigm has been redefined to include numerous immune and nonimmune cell clusters based on in-depth unbiased single-cell approaches. The goal of this review is to highlight (1) the phenotypic and functional properties of monocyte subsets in the circulation, and macrophage populations in atherosclerotic plaques, as well as their contribution towards stable or unstable phenotypes in men and women, and (2) single-cell RNA sequencing studies that have advanced our knowledge of immune, particularly macrophage signatures present in the atherosclerotic niche. We discuss the importance of performing high-dimensional approaches to facilitate the development of novel sex-specific immunotherapies that aim to reduce the risk of cardiovascular events.
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Affiliation(s)
- Ioanna Gianopoulos
- Division of Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Research Institute of the McGill University Health Centre, McGill University, Montreal, Canada
| | - Stella S Daskalopoulou
- Division of Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Research Institute of the McGill University Health Centre, McGill University, Montreal, Canada.
- Division of Internal Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, McGill University Health Centre, McGill University, Montreal, Canada.
- Department of Medicine, Research Institute of the McGill University Health Centre, Glen Site, 1001 Decarie Boulevard, EM1.2210, Montreal, Quebec, H4A 3J1, Canada.
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Schelemei P, Wagner E, Picard FSR, Winkels H. Macrophage mediators and mechanisms in cardiovascular disease. FASEB J 2024; 38:e23424. [PMID: 38275140 DOI: 10.1096/fj.202302001r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024]
Abstract
Macrophages are major players in myocardial infarction (MI) and atherosclerosis, two major cardiovascular diseases (CVD). Atherosclerosis is caused by the buildup of cholesterol-rich lipoproteins in blood vessels, causing inflammation, vascular injury, and plaque formation. Plaque rupture or erosion can cause thrombus formation resulting in inadequate blood flow to the heart muscle and MI. Inflammation, particularly driven by macrophages, plays a central role in both atherosclerosis and MI. Recent integrative approaches of single-cell analysis-based classifications in both murine and human atherosclerosis as well as experimental MI showed overlap in origin, diversity, and function of macrophages in the aorta and the heart. We here discuss differences and communalities between macrophages in the heart and aorta at steady state and in atherosclerosis or upon MI. We focus on markers, mediators, and functional states of macrophage subpopulations. Recent trials testing anti-inflammatory agents show a major benefit in reducing the inflammatory burden of CVD patients, but highlight a necessity for a broader understanding of immune cell ontogeny and heterogeneity in CVD. The novel insights into macrophage biology in CVD represent exciting opportunities for the development of novel treatment strategies against CVD.
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Affiliation(s)
- Patrik Schelemei
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Elena Wagner
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Felix Simon Ruben Picard
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Holger Winkels
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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Alvarez-Arzola R, Oliver L, Messmer MM, Twum DYF, Lee KP, Muhitch JB, Mesa C, Abrams SI. A Bacterial and Ganglioside-based Nanoparticle Initiates Reprogramming of Macrophages and Promotes Antitumor Phenotypes. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:475-486. [PMID: 38117752 DOI: 10.4049/jimmunol.2300256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/19/2023] [Indexed: 12/22/2023]
Abstract
Macrophages represent the most abundant immune component of the tumor microenvironment and often exhibit protumorigenic (M2-like) phenotypes that contribute to disease progression. Despite their generally accepted protumorigenic role, macrophages can also display tumoricidal (or M1-like) behavior, revealing that macrophages can be functionally reprogrammed, depending on the cues received within the tumor microenvironment. Moreover, such plasticity may be achieved by pharmacologic or biologic interventions. To that end, we previously demonstrated that a novel immunomodulator termed the "very small size particle" (VSSP) facilitates maturation of dendritic cells and differentiation of myeloid-derived suppressor cells to APCs with reduced suppressive activity in cancer models. VSSP was further shown to act in the bone marrow to drive the differentiation of progenitors toward monocytes, macrophages, and dendritic cells during emergency myelopoiesis. However, the underlying mechanisms for VSSP-driven alterations in myeloid differentiation and function remained unclear. In this study, in mouse models, we focused on macrophages and tested the hypothesis that VSSP drives macrophages toward M1-like functional states via IRF8- and PU.1-dependent mechanisms. We further hypothesized that such VSSP-mediated actions would be accompanied by enhanced antitumor responses. Overall, we showed that (1) VSSP drives naive or M2-derived macrophages to M1-like states, (2) the M1-like state induced by VSSP occurs via IRF8- and PU.1-dependent mechanisms, and (3) single-agent VSSP induces an antitumor response that is accompanied by alterations in the intratumoral myeloid compartment. These results provide a deeper mechanistic underpinning of VSSP and strengthen its use to drive M1-like responses in host defense, including cancer.
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Affiliation(s)
- Rydell Alvarez-Arzola
- Department of Immunoregulation, Immunology and Immunotherapy Direction, Center of Molecular Immunology, Havana, Cuba
| | - Liliana Oliver
- Department of Immunoregulation, Immunology and Immunotherapy Direction, Center of Molecular Immunology, Havana, Cuba
| | | | - Danielle Y F Twum
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Kelvin P Lee
- IU Simon Comprehensive Cancer Center, Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Jason B Muhitch
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Circe Mesa
- Innovative Immunotherapy Alliance S.A., Mariel, Artemisa, Cuba
| | - Scott I Abrams
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
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Kim S, Chun SH, Cheon YH, Kim M, Kim HO, Lee H, Hong ST, Park SJ, Park MS, Suh YS, Lee SI. Peptoniphilus gorbachii alleviates collagen-induced arthritis in mice by improving intestinal homeostasis and immune regulation. Front Immunol 2024; 14:1286387. [PMID: 38239365 PMCID: PMC10794505 DOI: 10.3389/fimmu.2023.1286387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/12/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction The intricate connection between gut microbiota and rheumatoid arthritis (RA) pathogenesis has gained prominence, although the specific microbial species contributing to RA development remain largely unknown. Recent studies have sought to comprehensively explore alterations in the human microbiome, focusing on identifying disease-related microbial species through blood analysis. Consequently, this study aimed to identify RA-associated microbial species using a serum microbial array system and to investigate the efficacy and underlying mechanisms of potential microbial species for RA treatment. Methods Serum immunoglobulin M levels against 384 intestinal microbial species were assessed using a microbial microarray in patients with RA and healthy individuals. We investigated the therapeutic potential of the identified microbial candidate regarding arthritis development, immune responses, gut barrier function, and gut microbiome using a collagen-induced arthritis (CIA) mouse model. Results Our findings revealed significant alterations in antibody levels against 36 microbial species in patients with RA compared to healthy individuals. Notably, the antibody levels against Peptoniphilus gorbachii (PG) were decreased in patients with RA and exhibited an inverse correlation with RA disease activity. In vitro experiments demonstrated that PG produced acetate and butyrate, while exhibiting anti-inflammatory properties. In CIA mice, PG administration suppressed arthritis symptoms, reduced the accumulation of inflammatory monocytes in the mesenteric lymph nodes, and downregulated gene expression of pro-inflammatory cytokines in the ileum. Additionally, PG supplementation restored intestinal barrier integrity and partially resolved gut microbial dysbiosis in CIA mice. The fecal microbiota in PG-treated mice corresponded to improved intestinal barrier integrity and reduced inflammatory responses. Conclusion This study highlights the potential of serum-based detection of anti-microbial antibodies to identify microbial targets at the species level for RA treatment. Moreover, our findings suggest that PG, identified through the microbial microarray analysis, holds therapeutic potential for RA by restoring intestinal barrier integrity and suppressing the immunologic response associated with RA.
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Affiliation(s)
- Suhee Kim
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
| | - Sung Hak Chun
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
| | - Yun-Hong Cheon
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
| | - Mingyo Kim
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
| | - Hyun-Ok Kim
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Hanna Lee
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Seong-Tshool Hong
- Department of Biomedical Sciences and Institute for Medical Science, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Sang-Jun Park
- Research Center, BIFIDO Co, Ltd, Hongcheon, Kangwon, Republic of Korea
| | - Myeong Soo Park
- Research Center, BIFIDO Co, Ltd, Hongcheon, Kangwon, Republic of Korea
| | - Young Sun Suh
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Sang-Il Lee
- Department of Internal Medicine and Institute of Health Science, Gyeongsang National University School of Medicine and Hospital, Jinju, Republic of Korea
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Chen HJ, Galley JD, Verosky BG, Yang FT, Rajasekera TA, Bailey MT, Gur TL. Fetal CCL2 signaling mediates offspring social behavior and recapitulates effects of prenatal stress. Brain Behav Immun 2024; 115:308-318. [PMID: 37914098 PMCID: PMC10872760 DOI: 10.1016/j.bbi.2023.10.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 10/26/2023] [Accepted: 10/29/2023] [Indexed: 11/03/2023] Open
Abstract
Maternal stress during pregnancy is prevalent and associated with increased risk of neurodevelopmental disorders in the offspring. Maternal and offspring immune dysfunction has been implicated as a potential mechanism by which prenatal stress shapes offspring neurodevelopment; however, the impact of prenatal stress on the developing immune system has yet to be elucidated. Furthermore, there is evidence that the chemokine C-C motif chemokine ligand 2 (CCL2) plays a key role in mediating the behavioral sequelae of prenatal stress. Here, we use an established model of prenatal restraint stress in mice to investigate alterations in the fetal immune system, with a focus on CCL2. In the placenta, stress led to a reduction in CCL2 and Ccr2 expression with a concomitant decrease in leukocyte number. However, the fetal liver exhibited an inflammatory phenotype, with upregulation of Ccl2, Il6, and Lbp expression, along with an increase in pro-inflammatory Ly6CHi monocytes. Prenatal stress also disrupted chemokine signaling and increased the number of monocytes and microglia in the fetal brain. Furthermore, stress increased Il1b expression by fetal brain CD11b+ microglia and monocytes. Finally, intra-amniotic injections of recombinant mouse CCL2 partially recapitulated the social behavioral deficits in the adult offspring previously observed in the prenatal restraint stress model. Altogether, these data suggest that prenatal stress led to fetal inflammation, and that fetal CCL2 plays a role in shaping offspring social behavior.
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Affiliation(s)
- Helen J Chen
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Medical Scientist Training Program, The Ohio State University, Columbus, OH, United States
| | - Jeffrey D Galley
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Branden G Verosky
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Medical Scientist Training Program, The Ohio State University, Columbus, OH, United States
| | - Felix T Yang
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Medical Scientist Training Program, The Ohio State University, Columbus, OH, United States
| | - Therese A Rajasekera
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Michael T Bailey
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Center for Microbial Pathogenesis, The Research Institute, Nationwide Children's Hospital, Columbus, OH, United States; Biosciences Division, College of Dentistry, The Ohio State University, Columbus, OH, United States; Department of Pediatrics, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Tamar L Gur
- Institute for Behavioral Medicine Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Psychiatry & Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Medical Scientist Training Program, The Ohio State University, Columbus, OH, United States; Department of Obstetrics & Gynecology, The Ohio State University Wexner Medical Center, Columbus OH, United States.
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Jin L, Xiao L, Manley BJ, Oh EG, Huang W, Zhang Y, Chi J, Shi W, Kerrigan JR, Sung SSJ, Kuan CY, Li X. CCR2 monocytes as therapeutic targets for acute disc herniation and radiculopathy in mouse models. Osteoarthritis Cartilage 2024; 32:52-65. [PMID: 37802464 PMCID: PMC10873076 DOI: 10.1016/j.joca.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/27/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023]
Abstract
OBJECTIVE Back pain and radiculopathy caused by disc herniation are major health issues worldwide. While macrophages are key players in disc herniation induced inflammation, their roles and origins in disease progression remain unclear. We aim to study the roles of monocytes and derivatives in a mouse model of disc herniation. METHODS Using a CCR2-CreER; R26R-EGFP (Ai6) transgenic mouse strain, we fate-mapped C-C chemokine receptor type 2 (CCR2) expressing monocytes and derivatives at disc herniation sites, and employed a CCR2RFP/RFP mouse strain and a CCR2-specific antagonist to study the effects of CCR2+ monocytes on local inflammatory responses, pain level, and disc degeneration by immunostaining, flow cytometry, and histology. RESULTS CCR2+ monocytes (GFP+) increased at the sites of disc hernia over postoperative day 4, 6, and 9 in CCR2-CreER; Ai6 mice. F4/80+ cells increased, and meanwhile, CD11b+ cells trended downward. Co-localization analysis revealed that both GFP+CD11b+ and GFP+F4/80+ constituted the majority of CD11b+ and F4/80+ cells at disc hernia sites. Fluorescence activated cell sorter purified GFP+ cells exhibited higher cytokine expressions than GFP- cells. Inhibition of CCR2 signaling reduced infiltration of monocytes and macrophages, alleviated pain, maintained disc height, and reduced osteoclast activity in adjacent cortical bone for up to 1 month. CONCLUSION Our findings suggest that circulating CCR2+ monocytes play important roles in initiating and promoting the local inflammatory responses, pain sensitization, and degenerative changes after disc herniation, and thus may serve as therapeutic targets for disc herniation induced back and leg pain.
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Affiliation(s)
- Li Jin
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Li Xiao
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Brock J Manley
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Eunha G Oh
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Wendy Huang
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Yi Zhang
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Jialun Chi
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Weibin Shi
- Department of Radiology and Medical Imaging, Charlottesville, VA 22908, USA; Department of Biochemistry and Molecular Genetics, Charlottesville, VA 22908, USA
| | - Jason R Kerrigan
- Department of Mechanical and Aerospace Engineering, Center of Applied Biomechanics, University of Virginia, Charlottesville, VA 22904, USA
| | - Sun-Sang J Sung
- Department of Medicine, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Chia-Yi Kuan
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia, Charlottesville, VA 22908, USA
| | - Xudong Li
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22908, USA; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22904, USA.
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Jeon KB, Park HM, Kim S, Kim NY, Lee TE, Oh DK, Yoon DY. Phorbal-12-mysristate-13-acetate-induced inflammation is restored by protectin DX through PPARγ in human promonocytic U937 cells. Life Sci 2024; 336:122288. [PMID: 38007146 DOI: 10.1016/j.lfs.2023.122288] [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: 08/27/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
AIMS Protectin DX (PDX), a specialized pro-resolving mediator, is an important pharmaceutical compound with potential antioxidant and inflammation-resolving effects. However, the fundamental mechanism by which PDX's ameliorate chronic inflammatory diseases has not yet been elucidated. This study aims to evaluate the anti-inflammatory properties and PPARγ-mediated mechanisms of PDX in phorbal-12-mysristate-13-acetate (PMA)-stimulated human promonocytic U937 cells. MAIN METHODS We confirmed the effects of PDX on expressions of pro-inflammatory cytokines, mediators, and CD14 using conventional PCR, RT-qPCR, ELISA, and flow cytometry. Using western blotting, immunofluorescence, and reactive oxygen species (ROS) determination, we observed that PDX regulated PMA-induced signaling cascades. Molecular docking analysis and a cellular thermal shift assay were conducted to verify the interaction between PDX and the proliferator-activated receptor-γ (PPARγ) ligand binding domain. Western blotting was then employed to explore the alterations in PPARγ expression levels and validate PDX as a PPARγ full agonist. KEY FINDINGS PDX attenuated protein and mRNA expression levels of interleukin-6, tumor necrosis factor-α, and cyclooxygenase-2 in PMA-treated U937 cells. PDX acts as a PPARγ agonist, exerting a modulating effect on the ROS/JNK/c-Fos signaling pathways. Furthermore, PDX reduced human monocyte differentiation antigen CD14 expression levels. SIGNIFICANCE PPARγ exhibits pro-resolving effects to regulate the excessive inflammation. These results suggest that PDX demonstrates the resolution of inflammation, indicating the potential for therapeutic targeting of chronic inflammatory diseases.
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Affiliation(s)
- Kyeong-Bae Jeon
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Hyo-Min Park
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Seonhwa Kim
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Na-Yeon Kim
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Tae-Eui Lee
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Do-Young Yoon
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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Shao M, Jin X, Chen S, Yang N, Feng G. Plant-derived extracellular vesicles -a novel clinical anti-inflammatory drug carrier worthy of investigation. Biomed Pharmacother 2023; 169:115904. [PMID: 37984307 DOI: 10.1016/j.biopha.2023.115904] [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: 09/10/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/22/2023] Open
Abstract
Plant-derived extracellular vesicles (PDEVs) have shown remarkable potential as sustainable, green, and efficient drug delivery nanocarriers. As natural nanoparticles containing lipids, protein, nucleic acids and secondary metabolites, they have received widespread attention as a replacement for mammalian exosomes in recent years. In this review, the advances in isolation, identification, composition, therapeutic effect, and clinical application prospect were comprehensively reviewed, respectively. In addition, the specific modification strategies have been listed focusing on the inherent drawbacks of the raw PDEVs like low targeting efficiency and poor homogeneity. With emphasis on their biology mechanism in terms of immune regulation, regulating oxidative stress and promoting regeneration in the anti-inflammatory field and application value demonstrated by citing some typical examples, this review about PDEVs would provide a broad and fundamental vision for the in-depth exploration and development of plant-derived extracellular vesicles in the in-vivo anti-inflammation and even other biomedical applications.
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Affiliation(s)
- Mingyue Shao
- Department of Respiratory Medicine, The Second Clinical Medical School of Nanjing Medical University, Nanjing, Jiangsu 210011, China; Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Xiao Jin
- Department of Respiratory Medicine, The Second Clinical Medical School of Nanjing Medical University, Nanjing, Jiangsu 210011, China; Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Sixi Chen
- Department of Respiratory Medicine, The Second Clinical Medical School of Nanjing Medical University, Nanjing, Jiangsu 210011, China; Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Ning Yang
- Department of Respiratory Medicine, The Second Clinical Medical School of Nanjing Medical University, Nanjing, Jiangsu 210011, China; Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Ganzhu Feng
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China.
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Veyssiere M, Sadat Aghamiri S, Hernandez Cervantes A, Henry T, Soumelis V. A mathematical model of Familial Mediterranean Fever predicts mechanisms controlling inflammation. Clin Immunol 2023; 257:109839. [PMID: 37952562 DOI: 10.1016/j.clim.2023.109839] [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: 07/12/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Familial Mediterranean Fever (FMF) is a monogenic disease caused by gain-of-function mutations in the MEditerranean FeVer (MEFV) gene. The molecular dysregulations induced by these mutations and the associated causal mechanisms are complex and intricate. OBJECTIVE We sought to provide a computational model capturing the mechanistic details of biological pathways involved in FMF physiopathology and enabling the study of the patient's immune cell dynamics. METHODS We carried out a literature survey to identify experimental studies published from January 2000 to December 2020, and integrated its results into a molecular map and a mathematical model. Then, we studied the network of molecular interactions and the dynamic of monocytes to identify key players for inflammation phenotype in FMF patients. RESULTS We built a molecular map of FMF integrating in a structured manner the current knowledge regarding pathophysiological processes participating in the triggering and perpetuation of the disease flares. The mathematical model derived from the map reproduced patient's monocyte behavior, in particular its proinflammatory role via the Pyrin inflammasome activation. Network analysis and in silico experiments identified NF-κB and JAK1/TYK2 as critical to modulate IL-1β- and IL-18-mediated inflammation. CONCLUSION The in silico model of FMF monocyte proved its ability to reproduce in vitro observations. Considering the difficulties related to experimental settings and financial investments to test combinations of stimuli/perturbation in vitro, this model could be used to test complex hypotheses in silico, thus narrowing down the number of in vitro and ex vivo experiments to perform.
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Affiliation(s)
| | - Sara Sadat Aghamiri
- Université Paris Cité, INSERM U976, Paris, France; University of Nebraska-Lincoln, Lincoln, NE, United States
| | | | - Thomas Henry
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, Univ Lyon, Lyon F-69007, France
| | - Vassili Soumelis
- Université Paris Cité, INSERM U976, Paris, France; Owkin, 14 boulevard Poissonniere, Paris 75009, France.
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Bańkosz M, Urbaniak MM, Szwed A, Rudnicka K, Włodarczyk M, Drabczyk A, Kudłacik-Kramarczyk S, Tyliszczak B, Sobczak-Kupiec A. Physicochemical and biological analysis of composite biomaterials containing hydroxyapatite for biological applications. J Biomed Mater Res B Appl Biomater 2023; 111:2077-2088. [PMID: 37596849 DOI: 10.1002/jbm.b.35309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/11/2023] [Accepted: 07/31/2023] [Indexed: 08/20/2023]
Abstract
Bone tissue regeneration is one of the main areas of tissue engineering. A particularly important aspect is the development of new innovative composite materials intended for bone tissue engineering and/or bone substitution. In this article, the synthesis and characterization of ceramic-polymer composites based on polyvinylpyrrolidone, poly(vinyl alcohol) and hydroxyapatite (HAp) have been presented. The first part of the work deals with the synthesis and characterization of the ceramic phase. It was demonstrated that the obtained calcium phosphate is characterized by a heterogeneity and porosity indicating simultaneously its large specific surface area. Additionally, in the wound healing test, it was shown that the obtained powder supports the regeneration of L929 cells. Next, HAp-containing composite materials were obtained in the waste-free photopolymerization process and characterized in detail. It was proved that the obtained composites were characterized by sorption properties and stability during 12-day incubation in simulated physiological liquids. Importantly, the obtained composites showed no cytotoxic effect against the L929 murine fibroblasts - the cell viability was 94.5%. Then, confocal microscopy allowed to observe that murine fibroblasts effectively colonized the surface of the obtained polymer-ceramic composites, covering the entire surface of the biomaterial. Thus, the obtained results confirm the high potential of the obtained composites in the application of bone tissue regenerative medicine.
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Affiliation(s)
- Magdalena Bańkosz
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Mateusz M Urbaniak
- Department of Immunology and Infectious Biology, University of Lodz, Faculty of Biology and Environmental Protection, Lodz, Poland
- Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Lodz, Poland
| | - Aleksandra Szwed
- Department of Immunology and Infectious Biology, University of Lodz, Faculty of Biology and Environmental Protection, Lodz, Poland
| | - Karolina Rudnicka
- Department of Immunology and Infectious Biology, University of Lodz, Faculty of Biology and Environmental Protection, Lodz, Poland
| | - Marcin Włodarczyk
- Department of Immunology and Infectious Biology, University of Lodz, Faculty of Biology and Environmental Protection, Lodz, Poland
| | - Anna Drabczyk
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Sonia Kudłacik-Kramarczyk
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Bożena Tyliszczak
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Agnieszka Sobczak-Kupiec
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
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Bai M, Sun R, Cao B, Feng J, Wang J. Monocyte-related cytokines/chemokines in cerebral ischemic stroke. CNS Neurosci Ther 2023; 29:3693-3712. [PMID: 37452512 PMCID: PMC10651979 DOI: 10.1111/cns.14368] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/01/2023] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
AIMS Ischemic stroke is one of the leading causes of death worldwide and the most common cause of disability in Western countries. Multiple mechanisms contribute to the development and progression of ischemic stroke, and inflammation is one of the most important mechanisms. DISCUSSION Ischemia induces the release of adenosine triphosphate/reactive oxygen species, which activates immune cells to produce many proinflammatory cytokines that activate downstream inflammatory cascades to induce fatal immune responses. Research has confirmed that peripheral blood immune cells play a vital role in the immunological cascade after ischemic stroke. The role of monocytes has received much attention among numerous peripheral blood immune cells. Monocytes induce their effects by secreting cytokines or chemokines, including CCL2/CCR2, CCR4, CCR5, CD36, CX3CL1/CX3CR1, CXCL12(SDF-1), LFA-1/ICAM-1, Ly6C, MMP-2/9, NR4A1, P2X4R, P-selectin, CD40L, TLR2/4, and VCAM-1/VLA-4. Those factors play important roles in the process of monocyte recruitment, migration, and differentiation. CONCLUSION This review focuses on the function and mechanism of the cytokines secreted by monocytes in the process of ischemic stroke and provides novel targets for treating cerebral ischemic stroke.
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Affiliation(s)
- Meiling Bai
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ruize Sun
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bin Cao
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Juan Feng
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jue Wang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
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Srivastava P, Nishiyama S, Zhou F, Lin SH, Srivastava A, Su C, Xu Y, Peng W, Levy M, Schwarzschild M, Chen X. Peripheral MC1R Activation Modulates Immune Responses and is Neuroprotective in a Mouse Model of Parkinson's Disease. J Neuroimmune Pharmacol 2023; 18:704-717. [PMID: 38110615 PMCID: PMC10769915 DOI: 10.1007/s11481-023-10094-7] [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: 10/17/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Melanocortin 1 receptor (MC1R) is a key pigmentation gene, and loss-of-function of MC1R variants that produce red hair may be associated with Parkinson's disease (PD). We previously reported compromised dopaminergic neuron survival in Mc1r mutant mice and dopaminergic neuroprotective effects of local injection of a MC1R agonist to the brain or a systemically administered MC1R agonist with appreciable central nervous system (CNS) permeability. Beyond melanocytes and dopaminergic neurons, MC1R is expressed in other peripheral tissues and cell types, including immune cells. The present study investigates the impact of NDP-MSH, a synthetic melanocortin receptor (MCR) agonist that does not cross BBB, on the immune system and the nigrostriatal dopaminergic system in mouse model of PD. METHODS C57BL/6 mice were treated systemically with MPTP.HCl (20 mg/kg) and LPS (1 mg/kg) from day 1 to day 4 and NDP-MSH (400 µg/kg) or vehicle from day 1 to day 12 following which the mice were sacrificed. Peripheral and CNS immune cells were phenotyped and inflammatory markers were measured. The nigrostriatal dopaminergic system was assessed behaviorally, chemically, immunologically, and pathologically. To understand the role of regulatory T cells (Tregs) in this model, CD25 monoclonal antibody was used to deplete CD25 + Tregs. RESULTS Systemic NDP-MSH administration significantly attenuated striatal dopamine depletion and nigral dopaminergic neuron loss induced by MPTP + LPS. It improved the behavioral outcomes in the pole test. Mc1r mutant mice injected with NDP-MSH in the MPTP and LPS paradigm showed no changes in striatal dopamine levels suggesting that the NDP-MSH acts through the MC1R pathway. Although no NDP-MSH was detected in the brain, peripheral, NDP-MSH attenuated neuroinflammation as observed by diminished microglial activation in the nigral region, along with reduced TNF-α and IL1β levels in the ventral midbrain. Depletion of Tregs was associated with diminished neuroprotective effects of NDP-MSH. CONCLUSIONS Our study demonstrates that peripherally acting NDP-MSH confers protection on dopaminergic nigrostriatal neurons and reduces hyperactivated microglia. NDP-MSH modulates peripheral immune responses, and Tregs may be involved in the neuroprotective effect of NDP-MSH.
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Affiliation(s)
- Pranay Srivastava
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Shuhei Nishiyama
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Fang Zhou
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Sonia H Lin
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Akriti Srivastava
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Chienwen Su
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Yuehang Xu
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Weiyi Peng
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - Michael Levy
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Michael Schwarzschild
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Xiqun Chen
- MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
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Frauenlob T, Neuper T, Regl C, Schaepertoens V, Unger MS, Oswald AL, Dang HH, Huber CG, Aberger F, Wessler S, Horejs-Hoeck J. Helicobacter pylori induces a novel form of innate immune memory via accumulation of NF-кB proteins. Front Immunol 2023; 14:1290833. [PMID: 38053995 PMCID: PMC10694194 DOI: 10.3389/fimmu.2023.1290833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023] Open
Abstract
Helicobacter pylori is a widespread Gram-negative pathogen involved in a variety of gastrointestinal diseases, including gastritis, ulceration, mucosa-associated lymphoid tissue (MALT) lymphoma and gastric cancer. Immune responses aimed at eradication of H. pylori often prove futile, and paradoxically play a crucial role in the degeneration of epithelial integrity and disease progression. We have previously shown that H. pylori infection of primary human monocytes increases their potential to respond to subsequent bacterial stimuli - a process that may be involved in the generation of exaggerated, yet ineffective immune responses directed against the pathogen. In this study, we show that H. pylori-induced monocyte priming is not a common feature of Gram-negative bacteria, as Acinetobacter lwoffii induces tolerance to subsequent Escherichia coli lipopolysaccharide (LPS) challenge. Although the increased reactivity of H. pylori-infected monocytes seems to be specific to H. pylori, it appears to be independent of its virulence factors Cag pathogenicity island (CagPAI), cytotoxin associated gene A (CagA), vacuolating toxin A (VacA) and γ-glutamyl transferase (γ-GT). Utilizing whole-cell proteomics complemented with biochemical signaling studies, we show that H. pylori infection of monocytes induces a unique proteomic signature compared to other pro-inflammatory priming stimuli, namely LPS and the pathobiont A. lwoffii. Contrary to these tolerance-inducing stimuli, H. pylori priming leads to accumulation of NF-кB proteins, including p65/RelA, and thus to the acquisition of a monocyte phenotype more responsive to subsequent LPS challenge. The plasticity of pro-inflammatory responses based on abundance and availability of intracellular signaling molecules may be a heretofore underappreciated form of regulating innate immune memory as well as a novel facet of the pathobiology induced by H. pylori.
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Affiliation(s)
- Tobias Frauenlob
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Theresa Neuper
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Christof Regl
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
| | - Veronika Schaepertoens
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Michael S. Unger
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Anna-Lena Oswald
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
| | - Hieu-Hoa Dang
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Christian G. Huber
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Fritz Aberger
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Silja Wessler
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
| | - Jutta Horejs-Hoeck
- Department of Biosciences and Medical Biology, University of Salzburg, Salzburg, Austria
- Cancer Cluster Salzburg (CCS), Salzburg, Austria
- Center for Tumorbiology and Immunology (CTBI), University of Salzburg, Salzburg, Austria
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48
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Kratofil RM. Working up an appetite to promote repair. Science 2023; 382:780. [PMID: 37972169 DOI: 10.1126/science.adl4292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Immune-derived hunger hormones restore tissue after infection.
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Affiliation(s)
- Rachel M Kratofil
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
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Sayaf K, Zanotto I, Gabbia D, Alberti D, Pasqual G, Zaramella A, Fantin A, De Martin S, Russo FP. Sex Drives Functional Changes in the Progression and Regression of Liver Fibrosis. Int J Mol Sci 2023; 24:16452. [PMID: 38003640 PMCID: PMC10671597 DOI: 10.3390/ijms242216452] [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: 09/29/2023] [Revised: 10/28/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
Liver fibrosis is a common and reversible feature of liver damage associated with many chronic liver diseases, and its onset is influenced by sex. In this study, we investigated the mechanisms of liver fibrosis and regeneration, focusing on understanding the mechanistic gaps between females and males. We injected increasing doses of carbon tetrachloride into female and male mice and maintained them for a washout period of eight weeks to allow for liver regeneration. We found that male mice were more prone to developing severe liver fibrosis as a consequence of early chronic liver damage, supported by the recruitment of a large number of Ly6Chigh MoMφs and neutrophils. Although prolonged liver damage exacerbated the fibrosis in mice of both sexes, activated HSCs and Ly6Chigh MoMφs were more numerous and active in the livers of female mice than those of male mice. After eight weeks of washout, only fibrotic females reported no activated HSCs, and a phenotype switching of Ly6Chigh MoMφs to anti-fibrogenic Ly6Clow MoMφs. The early stages of liver fibrosis mostly affected males rather than females, while long-term chronic liver damage was not influenced by sex, at least for liver fibrosis. Liver repair and regeneration were more efficient in females than in males.
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Affiliation(s)
- Katia Sayaf
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35131 Padova, Italy
| | - Ilaria Zanotto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35128 Padova, Italy (D.G.); (S.D.M.)
| | - Daniela Gabbia
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35128 Padova, Italy (D.G.); (S.D.M.)
| | - Dafne Alberti
- Laboratory of Synthetic Immunology, Department of Surgery Oncology and Gastroenterology, University of Padova, 35128 Padova, Italy (G.P.)
- Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Giulia Pasqual
- Laboratory of Synthetic Immunology, Department of Surgery Oncology and Gastroenterology, University of Padova, 35128 Padova, Italy (G.P.)
- Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Alice Zaramella
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35131 Padova, Italy
- Gastroenterology Unit, Veneto Institute of Oncology IOV-IRCCS, University of Padova, 35128 Padova, Italy;
| | - Alberto Fantin
- Gastroenterology Unit, Veneto Institute of Oncology IOV-IRCCS, University of Padova, 35128 Padova, Italy;
| | - Sara De Martin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35128 Padova, Italy (D.G.); (S.D.M.)
| | - Francesco Paolo Russo
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35131 Padova, Italy
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50
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Wu Y, Zhang P, Fan H, Zhang C, Yu P, Liang X, Chen Y. GPR35 acts a dual role and therapeutic target in inflammation. Front Immunol 2023; 14:1254446. [PMID: 38035084 PMCID: PMC10687457 DOI: 10.3389/fimmu.2023.1254446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
GPR35 is a G protein-coupled receptor with notable involvement in modulating inflammatory responses. Although the precise role of GPR35 in inflammation is not yet fully understood, studies have suggested that it may have both pro- and anti-inflammatory effects depending on the specific cellular environment. Some studies have shown that GPR35 activation can stimulate the production of pro-inflammatory cytokines and facilitate the movement of immune cells towards inflammatory tissues or infected areas. Conversely, other investigations have suggested that GPR35 may possess anti-inflammatory properties in the gastrointestinal tract, liver and certain other tissues by curbing the generation of inflammatory mediators and endorsing the differentiation of regulatory T cells. The intricate role of GPR35 in inflammation underscores the requirement for more in-depth research to thoroughly comprehend its functional mechanisms and its potential significance as a therapeutic target for inflammatory diseases. The purpose of this review is to concurrently investigate the pro-inflammatory and anti-inflammatory roles of GPR35, thus illuminating both facets of this complex issue.
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Affiliation(s)
- Yetian Wu
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
| | - Pei Zhang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, United States
| | - Hongjie Fan
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
| | - Caiying Zhang
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
| | - Pengfei Yu
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
| | - Xinmiao Liang
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yang Chen
- Ganjiang Chinese Medicine Innovation Center, Nanchang, China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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