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Hsu R, Al-Zubeidy B, Flores D, Nazarian A, Baugh A, Gonzalez E, Castanon S, Xiu J, Kang I, Spicer D, Lenz HJ, Dara L, Ademuyiwa FO, Korn WM, Irshad S, Chan IS, Roussos Torres ET. Evaluation of markers of immunity in different metastatic immune microenvironments suggests more suppression within breast to liver metastases in breast cancer. Breast Cancer Res Treat 2024; 206:245-259. [PMID: 38643348 PMCID: PMC11182800 DOI: 10.1007/s10549-024-07295-w] [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: 08/05/2023] [Accepted: 02/09/2024] [Indexed: 04/22/2024]
Abstract
PURPOSE Programmed death receptor ligand-1 (PD-L1) expression and tumor mutational burden (TMB) are approved screening biomarkers for immune checkpoint inhibition (ICI) in advanced triple negative breast cancer. We examined these biomarkers along with characterization of the tumor microenvironment (TME) between breast tumors (BrTs), axillary metastases (AxMs), liver metastases (LvMs), non-axillary lymph node metastases, and non-liver metastases to determine differences related to site of metastatic disease. METHODS 3076 unpaired biopsies from breast cancer patients were analyzed using whole transcriptome sequencing and NextGen DNA depicting TMB within tumor sites. The PD-L1 positivity was determined with VENTANA PD-L1 (SP142) assay. The immune cell fraction within the TME was calculated by QuantiSeq and MCP-counter. RESULTS Compared to BrT, more LvM samples had a high TMB (≥ 10 mutations/Mb) and fewer LvM samples had PD-L1+ expression. Evaluation of the TME revealed that LvM sites harbored lower infiltration of adaptive immune cells, such as CD4+, CD8+, and regulatory T-cells compared with the BrT foci. We saw differences in innate immune cell infiltration in LvM compared to BrT, including neutrophils and NK cells. CONCLUSIONS LvMs are less likely to express PD-L1+ tumor cells but more likely to harbor high TMB as compared to BrTs. Unlike AxMs, LvMs represent a more immunosuppressed TME and demonstrate lower gene expression associated with adaptive immunity compared to BrTs. These findings suggest biopsy site be considered when interpreting results that influence ICI use for treatment and further investigation of immune composition and biomarkers expression by metastatic site.
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Affiliation(s)
- Robert Hsu
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Batul Al-Zubeidy
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Daniel Flores
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Ari Nazarian
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Aaron Baugh
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Edgar Gonzalez
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Sofi Castanon
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | | | - Irene Kang
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Medical Oncology & Therapeutics Research, City of Hope Orange County, Irvine, CA, USA
| | - Darcy Spicer
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Heinz Josef Lenz
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Lily Dara
- Division of Gastrointestinal and Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | | | | | - Sheeba Irshad
- School of Cancer & Pharmaceutical Sciences, King's College London, Cancer Research UK (CRUK) Clinician Scientist, London, UK
| | - Isaac S Chan
- Division of Hematology and Oncology, Department of Internal Medicine, University of Texas Southwestern, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Evanthia T Roussos Torres
- Division of Medical Oncology, Department of Medicine, University of Southern California Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
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Borroni E, Borsotti C, Cirsmaru RA, Kalandadze V, Famà R, Merlin S, Brown B, Follenzi A. Immune tolerance promotion by LSEC-specific lentiviral vector-mediated expression of the transgene regulated by the stabilin-2 promoter. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102116. [PMID: 38333675 PMCID: PMC10850788 DOI: 10.1016/j.omtn.2024.102116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 01/05/2024] [Indexed: 02/10/2024]
Abstract
Liver sinusoidal endothelial cells (LSECs) are specialized endocytic cells that clear the body from blood-borne pathogens and waste macromolecules through scavenger receptors (SRs). Among the various SRs expressed by LSECs is stabilin-2 (STAB2), a class H SR that binds to several ligands, among which endogenous coagulation products. Given the well-established tolerogenic function of LSECs, we asked whether the STAB2 promoter (STAB2p) would enable us to achieve LSEC-specific lentiviral vector (LV)-mediated transgene expression, and whether the expression of this transgene would be maintained over the long term due to tolerance induction. Here, we show that STAB2p ensures LSEC-specific green fluorescent protein (GFP) expression by LV in the absence of a specific cytotoxic CD8+ T cell immune response, even in the presence of GFP-specific CD8+ T cells, confirming the robust tolerogenic function of LSECs. Finally, we show that our delivery system can partially and permanently restore FVIII activity in a mouse model of severe hemophilia A without the formation of anti-FVIII antibodies. Overall, our findings establish the suitability of STAB2p for long-term LSEC-restricted expression of therapeutic proteins, such as FVIII, or to achieve antigen-specific immune tolerance in auto-immune diseases.
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Affiliation(s)
- Ester Borroni
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Chiara Borsotti
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Roberta A. Cirsmaru
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Vakhtang Kalandadze
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Rosella Famà
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Simone Merlin
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Brian Brown
- Icahn Genomics Institute, Icahn School of Medicine at Mount Sinai, New York 10029, NY, USA
| | - Antonia Follenzi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
- Department of Attività Integrate Ricerca Innovazione, Azienda Ospedaliero-Universitaria SS. Antonio e Biagio e C.Arrigo, Alessandria, Italy
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Antigen Cross-Presentation by Murine Proximal Tubular Epithelial Cells Induces Cytotoxic and Inflammatory CD8+ T Cells. Cells 2022; 11:cells11091510. [PMID: 35563816 PMCID: PMC9104549 DOI: 10.3390/cells11091510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 12/11/2022] Open
Abstract
Immune-mediated glomerular diseases are characterized by infiltration of T cells, which accumulate in the periglomerular space and tubulointerstitium in close contact to proximal and distal tubuli. Recent studies described proximal tubular epithelial cells (PTECs) as renal non-professional antigen-presenting cells that stimulate CD4+ T-cell activation. Whether PTECs have the potential to induce activation of CD8+ T cells is less clear. In this study, we aimed to investigate the capacity of PTECs for antigen cross-presentation thereby modulating CD8+ T-cell responses. We showed that PTECs expressed proteins associated with cross-presentation, internalized soluble antigen via mannose receptor-mediated endocytosis, and generated antigenic peptides by proteasomal degradation. PTECs induced an antigen-dependent CD8+ T-cell activation in the presence of soluble antigen in vitro. PTEC-activated CD8+ T cells expressed granzyme B, and exerted a cytotoxic function by killing target cells. In murine lupus nephritis, CD8+ T cells localized in close contact to proximal tubuli. We determined enhanced apoptosis in tubular cells and particularly PTECs up-regulated expression of cleaved caspase-3. Interestingly, induction of apoptosis in the inflamed kidney was reduced in the absence of CD8+ T cells. Thus, PTECs have the capacity for antigen cross-presentation thereby inducing cytotoxic CD8+ T cells in vitro, which may contribute to the pathology of immune-mediated glomerulonephritis.
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Sun X, Harris EN. New aspects of hepatic endothelial cells in physiology and nonalcoholic fatty liver disease. Am J Physiol Cell Physiol 2020; 318:C1200-C1213. [PMID: 32374676 DOI: 10.1152/ajpcell.00062.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The liver is the central metabolic hub for carbohydrate, lipid, and protein metabolism. It is composed of four major types of cells, including hepatocytes, endothelial cells (ECs), Kupffer cells, and stellate cells. Hepatic ECs are highly heterogeneous in both mice and humans, representing the second largest population of cells in liver. The majority of them line hepatic sinusoids known as liver sinusoidal ECs (LSECs). The structure and biology of LSECs and their roles in physiology and liver disease were reviewed recently. Here, we do not give a comprehensive review of LSEC structure, function, or pathophysiology. Instead, we focus on the recent progress in LSEC research and other hepatic ECs in physiology and nonalcoholic fatty liver disease and other hepatic fibrosis-related conditions. We discuss several current areas of interest, including capillarization, scavenger function, autophagy, cellular senescence, paracrine effects, and mechanotransduction. In addition, we summarize the strengths and weaknesses of evidence for the potential role of endothelial-to-mesenchymal transition in liver fibrosis.
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Affiliation(s)
- Xinghui Sun
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Nebraska Center for the Prevention of Obesity Diseases through Dietary Molecules, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Edward N Harris
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
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Pons S, Arnaud M, Loiselle M, Arrii E, Azoulay E, Zafrani L. Immune Consequences of Endothelial Cells' Activation and Dysfunction During Sepsis. Crit Care Clin 2020; 36:401-413. [PMID: 32172821 DOI: 10.1016/j.ccc.2019.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The vascular endothelium provides a direct interface between circulating blood cells and parenchymal cells. Thus, it has a key role in vasomotor tone regulation, primary hemostasis, vascular barrier, and immunity. In the case of systemic inflammation, endothelial cell (EC) activation initiates a powerful innate immune response to eliminate the pathogen. In some specific conditions, ECs may also contribute to the activation of adaptive immunity and the recruitment of antigen-specific lymphocytes. However, the loss of EC functions or an exaggerated activation of ECs during sepsis can lead to multiorgan failure.
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Affiliation(s)
- Stéphanie Pons
- INSERM U976, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France
| | - Marine Arnaud
- INSERM U976, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France
| | - Maud Loiselle
- INSERM U976, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France
| | - Eden Arrii
- INSERM U976, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France
| | - Elie Azoulay
- Medical Intensive Care Unit, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France
| | - Lara Zafrani
- INSERM U976, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France; Medical Intensive Care Unit, Saint-Louis Teaching Hospital, 1, Avenue Claude Vellefaux, Paris 75010, France.
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Yang N, Qiao J, Liu S, Zou Z, Zhu L, Liu X, Zhou S, Li H. Change in the immune function of porcine iliac artery endothelial cells infected with porcine circovirus type 2 and its inhibition on monocyte derived dendritic cells maturation. PLoS One 2017; 12:e0186775. [PMID: 29073194 PMCID: PMC5658068 DOI: 10.1371/journal.pone.0186775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 10/06/2017] [Indexed: 11/19/2022] Open
Abstract
Porcine circovirus-associated disease is caused by porcine circovirus type 2 (PCV2) infection, which targets iliac artery endothelial cells (PIECs); it leads to severe immunopathologies and is associated with major economic losses in the porcine industry. Here, we report that in vitro PCV2 infection of PIECs causes cell injury, which affects DC function as well as adaptive immunity. Specifically, PCV2 infection downregulated PIEC antigen-presenting molecule expression, upregulated cytokines involved in the immune and inflammatory response causing cell damage and repair, and altered the migratory capacity of PIECs. In addition, PCV2-infected PIECs inhibited DC maturation, enhanced the endocytic ability of DCs, and weakened the stimulatory effect of DCs on T lymphocytes. Together, these findings indicate that profound functional impairment of DCs in the presence of PCV2-infected PIECs may be a potential pathogenic mechanism associated with PCV2-induced porcine disease.
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Affiliation(s)
- Ning Yang
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Jinzeng Qiao
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Shiyu Liu
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Zhanming Zou
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Linlin Zhu
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Xinyu Liu
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
| | - Shuanghai Zhou
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
- * E-mail: (HL); (SZ)
| | - Huanrong Li
- College of Animal Science and Technology, Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, P. R., China
- * E-mail: (HL); (SZ)
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Horst AK, Neumann K, Diehl L, Tiegs G. Modulation of liver tolerance by conventional and nonconventional antigen-presenting cells and regulatory immune cells. Cell Mol Immunol 2016; 13:277-92. [PMID: 27041638 PMCID: PMC4856800 DOI: 10.1038/cmi.2015.112] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/18/2015] [Accepted: 12/18/2015] [Indexed: 12/11/2022] Open
Abstract
The liver is a tolerogenic organ with exquisite mechanisms of immune regulation that ensure upkeep of local and systemic immune tolerance to self and foreign antigens, but that is also able to mount effective immune responses against pathogens. The immune privilege of liver allografts was recognized first in pigs in spite of major histo-compatibility complex mismatch, and termed the "liver tolerance effect". Furthermore, liver transplants are spontaneously accepted with only low-dose immunosuppression, and induce tolerance for non-hepatic co-transplanted allografts of the same donor. Although this immunotolerogenic environment is favorable in the setting of organ transplantation, it is detrimental in chronic infectious liver diseases like hepatitis B or C, malaria, schistosomiasis or tumorigenesis, leading to pathogen persistence and weak anti-tumor effects. The liver is a primary site of T-cell activation, but it elicits poor or incomplete activation of T cells, leading to their abortive activation, exhaustion, suppression of their effector function and early death. This is exploited by pathogens and can impair pathogen control and clearance or allow tumor growth. Hepatic priming of T cells is mediated by a number of local conventional and nonconventional antigen-presenting cells (APCs), which promote tolerance by immune deviation, induction of T-cell anergy or apoptosis, and generating and expanding regulatory T cells. This review will focus on the communication between classical and nonclassical APCs and lymphocytes in the liver in tolerance induction and will discuss recent insights into the role of innate lymphocytes in this process.
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Affiliation(s)
- Andrea Kristina Horst
- Institute of Experimental Immunology and Hepatology Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg D-20246, Germany
| | - Katrin Neumann
- Institute of Experimental Immunology and Hepatology Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg D-20246, Germany
| | - Linda Diehl
- Institute of Experimental Immunology and Hepatology Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg D-20246, Germany
| | - Gisa Tiegs
- Institute of Experimental Immunology and Hepatology Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg D-20246, Germany
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Schildberg FA, Sharpe AH, Turley SJ. Hepatic immune regulation by stromal cells. Curr Opin Immunol 2015; 32:1-6. [DOI: 10.1016/j.coi.2014.10.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 10/08/2014] [Indexed: 02/07/2023]
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