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Mattke J, Darden CM, Lawrence MC, Kuncha J, Shah YA, Kane RR, Naziruddin B. Toll-like receptor 4 in pancreatic damage and immune infiltration in acute pancreatitis. Front Immunol 2024; 15:1362727. [PMID: 38585277 PMCID: PMC10995222 DOI: 10.3389/fimmu.2024.1362727] [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: 12/28/2023] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Acute pancreatitis is a complex inflammatory disease resulting in extreme pain and can result in significant morbidity and mortality. It can be caused by several factors ranging from genetics, alcohol use, gall stones, and ductal obstruction caused by calcification or neutrophil extracellular traps. Acute pancreatitis is also characterized by immune cell infiltration of neutrophils and M1 macrophages. Toll-like receptor 4 (TLR4) is a pattern recognition receptor that has been noted to respond to endogenous ligands such as high mobility group box 1 (HMGB1) protein and or exogenous ligands such as lipopolysaccharide both of which can be present during the progression of acute pancreatitis. This receptor can be found on a variety of cell types from endothelial cells to resident and infiltrating immune cells leading to production of pro-inflammatory cytokines as well as immune cell activation and maturation resulting in the furthering of pancreatic damage during acute pancreatitis. In this review we will address the various mechanisms mediated by TLR4 in the advancement of acute pancreatitis and how targeting this receptor could lead to improved outcomes for patients suffering from this condition.
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Affiliation(s)
- Jordan Mattke
- Baylor University, Institute of Biomedical Studies, Waco, TX, United States
| | - Carly M. Darden
- Baylor University Medical Center, Annette C. and Harold C. Simmons Transplant Institute, Dallas, TX, United States
| | - Michael C. Lawrence
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Jayachandra Kuncha
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Yumna Ali Shah
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Robert R. Kane
- Baylor University, Institute of Biomedical Studies, Waco, TX, United States
| | - Bashoo Naziruddin
- Baylor University Medical Center, Annette C. and Harold C. Simmons Transplant Institute, Dallas, TX, United States
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2
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Nevarez-Mejia J, Jin YP, Pickering H, Parmar R, Valenzuela NM, Sosa RA, Heidt S, Fishbein GA, Rozengurt E, Baldwin WM, Fairchild RL, Reed EF. Human leukocyte antigen class I antibody-activated endothelium promotes CD206+ M2 macrophage polarization and MMP9 secretion through TLR4 signaling and P-selectin in a model of antibody-mediated rejection and allograft vasculopathy. Am J Transplant 2024; 24:406-418. [PMID: 38379280 PMCID: PMC11110958 DOI: 10.1016/j.ajt.2023.10.020] [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: 07/12/2023] [Revised: 10/03/2023] [Accepted: 10/24/2023] [Indexed: 02/22/2024]
Abstract
HLA donor-specific antibodies (DSA) elicit alloimmune responses against the graft vasculature, leading to endothelial cell (EC) activation and monocyte infiltration during antibody-mediated rejection (AMR). AMR promotes chronic inflammation and remodeling, leading to thickening of the arterial intima termed transplant vasculopathy or cardiac allograft vasculopathy (CAV) in heart transplants. Intragraft-recipient macrophages serve as a diagnostic marker in AMR; however, their polarization and function remain unclear. In this study, we utilized an in vitro Transwell coculture system to explore the mechanisms of monocyte-to-macrophage polarization induced by HLA I DSA-activated ECs. Anti-HLA I (IgG or F(ab')2) antibody-activated ECs induced the polarization of M2 macrophages with increased CD206 expression and MMP9 secretion. However, inhibition of TLR4 signaling or PSGL-1-P-selectin interactions significantly decreased both CD206 and MMP9. Monocyte adherence to Fc-P-selectin coated plates induced M2 macrophages with increased CD206 and MMP9. Moreover, Fc-receptor and IgG interactions synergistically enhanced active-MMP9 in conjunction with P-selectin. Transcriptomic analysis of arteries from DSA+CAV+ rejected cardiac allografts and multiplex-immunofluorescent staining illustrated the expression of CD68+CD206+CD163+MMP9+ M2 macrophages within the neointima of CAV-affected lesions. These findings reveal a novel mechanism linking HLA I antibody-activated endothelium to the generation of M2 macrophages which secrete vascular remodeling proteins contributing to AMR and CAV pathogenesis.
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Affiliation(s)
- Jessica Nevarez-Mejia
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Yi-Ping Jin
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Harry Pickering
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Rajesh Parmar
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Nicole M Valenzuela
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Rebecca A Sosa
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Sebastiaan Heidt
- Department of Immunology, Leiden University Medical Center, Leiden, the Netherlands
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Enrique Rozengurt
- Division of Digestive Diseases, Department of Medicine, University of California, Los Angeles, California, USA
| | - William M Baldwin
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland Clinic, Ohio, USA
| | - Robert L Fairchild
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland Clinic, Ohio, USA
| | - Elaine F Reed
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA.
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Nevarez-Mejia J, Pickering H, Sosa RA, Valenzuela NM, Fishbein GA, Baldwin WM, Fairchild RL, Reed EF. Spatial multiomics of arterial regions from cardiac allograft vasculopathy rejected grafts reveal novel insights into the pathogenesis of chronic antibody-mediated rejection. Am J Transplant 2024:S1600-6135(24)00069-8. [PMID: 38219867 DOI: 10.1016/j.ajt.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 12/22/2023] [Accepted: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Cardiac allograft vasculopathy (CAV) causes late graft failure and mortality after heart transplantation. Donor-specific antibodies (DSAs) lead to chronic endothelial cell injury, inflammation, and arterial intimal thickening. In this study, GeoMx digital spatial profiling was used to analyze arterial areas of interest (AOIs) from CAV+DSA+ rejected cardiac allografts (N = 3; 22 AOIs total). AOIs were categorized based on CAV neointimal thickening and underwent whole transcriptome and protein profiling. By comparing our transcriptomic data with that of healthy control vessels of rapid autopsy myocardial tissue, we pinpointed specific pathways and transcripts indicative of heightened inflammatory profiles in CAV lesions. Moreover, we identified protein and transcriptomic signatures distinguishing CAV lesions exhibiting low and high neointimal lesions. AOIs with low neointima showed increased markers for activated inflammatory infiltrates, endothelial cell activation transcripts, and gene modules involved in metalloproteinase activation and TP53 regulation of caspases. Inflammatory and apoptotic proteins correlated with inflammatory modules in low neointima AOIs. High neointima AOIs exhibited elevated TGFβ-regulated transcripts and modules enriched for platelet activation/aggregation. Proteins associated with growth factors/survival correlated with modules enriched for proliferation/repair in high neointima AOIs. Our findings reveal novel insight into immunological mechanisms mediating CAV pathogenesis.
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Affiliation(s)
- Jessica Nevarez-Mejia
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Harry Pickering
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Rebecca A Sosa
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Nicole M Valenzuela
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA
| | - William M Baldwin
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Robert L Fairchild
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Elaine F Reed
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California, USA.
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Franco-Acevedo A, Pathoulas CL, Murphy PA, Valenzuela NM. The Transplant Bellwether: Endothelial Cells in Antibody-Mediated Rejection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1276-1285. [PMID: 37844279 PMCID: PMC10593495 DOI: 10.4049/jimmunol.2300363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/22/2023] [Indexed: 10/18/2023]
Abstract
Ab-mediated rejection of organ transplants remains a stubborn, frequent problem affecting patient quality of life, graft function, and grant survival, and for which few efficacious therapies currently exist. Although the field has gained considerable knowledge over the last two decades on how anti-HLA Abs cause acute tissue injury and promote inflammation, there has been a gap in linking these effects with the chronic inflammation, vascular remodeling, and persistent alloimmunity that leads to deterioration of graft function over the long term. This review will discuss new data emerging over the last 5 y that provide clues into how ongoing Ab-endothelial cell interactions may shape vascular fate and propagate alloimmunity in organ transplants.
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Affiliation(s)
- Adriana Franco-Acevedo
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA
| | | | - Patrick A Murphy
- Center for Vascular Biology, University of Connecticut Medical School, Farmington, CT
| | - Nicole M Valenzuela
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA
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Anwar T, Sinnett-Smith J, Jin YP, Reed EF, Rozengurt E. Lipophilic Statins Inhibit YAP Nuclear Localization, Coactivator Activity, and Migration in Response to Ligation of HLA Class I Molecules in Endothelial Cells: Role of YAP Multisite Phosphorylation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1134-1145. [PMID: 36881871 PMCID: PMC10073314 DOI: 10.4049/jimmunol.2200568] [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: 08/05/2022] [Accepted: 02/10/2023] [Indexed: 03/09/2023]
Abstract
Solid-organ transplant recipients exhibiting HLA donor-specific Abs are at risk for graft loss due to chronic Ab-mediated rejection. HLA Abs bind HLA molecules expressed on the surface of endothelial cells (ECs) and induce intracellular signaling pathways, including the activation of the transcriptional coactivator yes-associated protein (YAP). In this study, we examined the impact of lipid-lowering drugs of the statin family on YAP localization, multisite phosphorylation, and transcriptional activity in human ECs. Exposure of sparse cultures of ECs to cerivastatin or simvastatin induced striking relocalization of YAP from the nucleus to the cytoplasm and inhibited the expression of the YAP/TEA domain DNA-binding transcription factor-regulated genes connective tissue growth factor and cysteine-rich angiogenic inducer 61. In dense cultures of ECs, statins prevented YAP nuclear import and expression of connective tissue growth factor and cysteine-rich angiogenic inducer 61 stimulated by the mAb W6/32 that binds HLA class I. Exposure of ECs to either cerivastatin or simvastatin completely blocked the migration of ECs stimulated by ligation of HLA class I. Exogenously supplied mevalonic acid or geranylgeraniol reversed the inhibitory effects of statins on YAP localization either in low-density ECs or high-density ECs challenged with W6/32. Mechanistically, cerivastatin increased the phosphorylation of YAP at Ser127, blunted the assembly of actin stress fiber, and inhibited YAP phosphorylation at Tyr357 in ECs. Using mutant YAP, we substantiated that YAP phosphorylation at Tyr357 is critical for YAP activation. Collectively, our results indicate that statins restrain YAP activity in EC models, thus providing a plausible mechanism underlying their beneficial effects in solid-organ transplant recipients.
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Affiliation(s)
- Tarique Anwar
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095
- Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - James Sinnett-Smith
- Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- VA Greater Los Angeles Health System
| | - Yi-Ping Jin
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095
| | - Elaine F. Reed
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095
| | - Enrique Rozengurt
- Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- VA Greater Los Angeles Health System
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Wang L, Ji K, Chen L, Li Y, Zhu W, Yuan X, Bao X, Wu X, He J. Posttransplant de novo DSA and NDSA affect GvHD, OS, and DFS after haplo-HSCT in patients without pre-existing HLA antibodies of hematological malignancies. Front Immunol 2022; 13:1047200. [PMID: 36532004 PMCID: PMC9751004 DOI: 10.3389/fimmu.2022.1047200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022] Open
Abstract
To examine the production time, type, and MFI of post-transplantation de novo HLA antibodies, and their effects on haplo-HSCT outcomes, we retrospectively included 116 patients who were negative for pre-existing HLA antibodies. In total, 322 serum samples from pre-transplantation to post-transplantation were dynamically tested by Luminex and single-antigen bead reagents. Patients were divided into: HLA antibody persistently negative group (group 1), the de novo HLA antibody transiently positive group (group 2), the de novo HLA antibody non-persistently positive group (group 3), and the de novo HLA antibody persistently positive group (group 4). Group 4 included DSA+non-DSA (NDSA) (group 4a) and NDSA (group 4b) groups. The detection rate of de novo HLA antibodies was 75.9% (88/116). The median MFI for de novo HLA antibodies was 2439 (1033-20162). The incidence of II-IV aGvHD was higher in group 2 than in group 1 (52.6% vs 17.9%, P < 0.01); in group 4a than in group 1 (87.5% vs 17.9%, P < 0.001); and in group 4a than in group 4b (87.5% vs 40.0%, P = 0.001). The DFS (37.5% vs 85.7%, P < 0.01) and OS (37.5% vs 85.7%, P < 0.01) of group 4a were lower than those of group 1. The DFS (48.0% vs 85.7%, P < 0.01) and OS (56.0% vs 85.7%, P = 0.03) of group 4b were lower than those of group 1. Multivariate analysis showed that de novo HLA antibody being transiently positive (HR: 5.30; 95% CI: 1.71-16.42, P = 0.01) and persistently positive (HR: 5.67; 95% CI: 2.00-16.08, P < 0.01) were both associated with a higher incidence of II-IV aGvHD. Persistently positive de novo HLA antibodies were a risk factor for reduced DFS (HR: 6.57; 95% CI: 2.08-20.70, P < 0.01) and OS (HR: 5.51; 95% CI: 1.73-17.53, P < 0.01). DSA and NDSA can be detected since 15 days after haplo-HSCT in patients without pre-existing HLA antibodies, and affect aGvHD, DFS, and OS. Haplo-HSCT patients must be monitored for HLA antibodies changes for appropriate preventive clinical management, and we recommend that 1-month post-transplantation is the best test time point.
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Affiliation(s)
- Lan Wang
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,Department of Hematology, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Kai Ji
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Luyao Chen
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ying Li
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,Department of Hematology, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Wenjuan Zhu
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,Department of Hematology, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaoni Yuan
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaojing Bao
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaojin Wu
- Department of Hematology, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China
| | - Jun He
- HLA Laboratory of Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China,*Correspondence: Jun He,
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Liu H, Liu J, Long C, Chen L, Zhan W, Xiao W, Gong X, Liu M, Tian XL, Chen S. Lack of NPR1 Increases Vascular Endothelial Adhesion through Induction of Integrin Beta 4. Int J Mol Sci 2022; 23:ijms232012627. [PMID: 36293483 PMCID: PMC9604115 DOI: 10.3390/ijms232012627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/12/2022] [Accepted: 10/18/2022] [Indexed: 12/02/2022] Open
Abstract
Natriuretic peptide receptor 1 (NPR1) serves as a modulator of vascular endothelial homeostasis. Interactions between monocytes and endothelial cells may initiate endothelium dysfunction, which is known as an early hallmark of atherosclerosis. In this study, we performed RNA-sequencing analysis for the aorta of Npr1 knockout (Npr1+/−) mice and found that differentially expressed genes were significantly related to cell adhesion. This result was supported by an increased expression of intercellular adhesion molecule 1 (ICAM-1) in the aortic endothelium of Npr1+/− mice. Moreover, we observed that the knockdown of NPR1 increased ICAM-1 expression and promoted THP-1 monocyte adhesion to human umbilical vein endothelial cells (HUVECs). NPR1 overexpression decreased ICAM-1 expression and inhibited the adhesion of monocytes to HUVECs treated by TNF-α (a cell adhesion inducer). Further analysis showed that adhesion-related genes were enriched in the focal adhesion signaling pathway, in which integrin beta 4 (Itgb4) was determined as a key gene. Notably, ITGB4 expression increased in vascular endothelium of Npr1+/− mice and in NPR1-knockdown HUVECs. The deficiency of ITGB4 decreased ICAM-1 expression and attenuated monocyte adhesion to NPR1-knockdown endothelial cells. Additionally, a reduced NPR1 and an increased ITGB4 expression level were found in an atherosclerosis mouse model. In conclusion, our findings demonstrate that NPR1 deficiency increases vascular endothelial cell adhesion by stimulating ITGB4 expression, which may contribute to the development of atherosclerosis.
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Affiliation(s)
- Hongfei Liu
- Vascular Function Laboratory, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Jiankun Liu
- Aging and Vascular Diseases, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Changkun Long
- Vascular Function Laboratory, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Liping Chen
- Vascular Function Laboratory, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Wenxing Zhan
- Vascular Function Laboratory, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Wanli Xiao
- Metabolic Control and Aging, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Xueting Gong
- Aging and Vascular Diseases, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Man Liu
- Aging and Vascular Diseases, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Xiao-Li Tian
- Aging and Vascular Diseases, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
| | - Shenghan Chen
- Vascular Function Laboratory, Human Aging Research Institute, School of Life Science, Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang 330031, China
- Correspondence:
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