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Ganguly S, Rosenthal SB, Ishizuka K, Troutman TD, Rohm TV, Khader N, Aleman-Muench G, Sano Y, Archilei S, Soroosh P, Olefsky JM, Feldstein AE, Kisseleva T, Loomba R, Glass CK, Brenner DA, Dhar D. Lipid-associated macrophages' promotion of fibrosis resolution during MASH regression requires TREM2. Proc Natl Acad Sci U S A 2024; 121:e2405746121. [PMID: 39172787 DOI: 10.1073/pnas.2405746121] [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: 03/21/2024] [Accepted: 07/12/2024] [Indexed: 08/24/2024] Open
Abstract
While macrophage heterogeneity during metabolic dysfunction-associated steatohepatitis (MASH) has been described, the fate of these macrophages during MASH regression is poorly understood. Comparing macrophage heterogeneity during MASH progression vs regression, we identified specific macrophage subpopulations that are critical for MASH/fibrosis resolution. We elucidated the restorative pathways and gene signatures that define regression-associated macrophages and establish the importance of TREM2+ macrophages during MASH regression. Liver-resident Kupffer cells are lost during MASH and are replaced by four distinct monocyte-derived macrophage subpopulations. Trem2 is expressed in two macrophage subpopulations: i) monocyte-derived macrophages occupying the Kupffer cell niche (MoKC) and ii) lipid-associated macrophages (LAM). In regression livers, no new transcriptionally distinct macrophage subpopulation emerged. However, the relative macrophage composition changed during regression compared to MASH. While MoKC was the major macrophage subpopulation during MASH, they decreased during regression. LAM was the dominant macrophage subtype during MASH regression and maintained Trem2 expression. Both MoKC and LAM were enriched in disease-resolving pathways. Absence of TREM2 restricted the emergence of LAMs and formation of hepatic crown-like structures. TREM2+ macrophages are functionally important not only for restricting MASH-fibrosis progression but also for effective regression of inflammation and fibrosis. TREM2+ macrophages are superior collagen degraders. Lack of TREM2+ macrophages also prevented elimination of hepatic steatosis and inactivation of HSC during regression, indicating their significance in metabolic coordination with other cell types in the liver. TREM2 imparts this protective effect through multifactorial mechanisms, including improved phagocytosis, lipid handling, and collagen degradation.
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Affiliation(s)
- Souradipta Ganguly
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
- Cancer Genome and Epigenetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Sara Brin Rosenthal
- Center for Computational Biology and Bioinformatics, Department of Medicine, University of California, San Diego, CA 92093
| | - Kei Ishizuka
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - Ty D Troutman
- Department of Cellular and Molecular Medicine, University of California, San Diego, CA 92093
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Theresa V Rohm
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - Naser Khader
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - German Aleman-Muench
- Cardiovascular and Metabolism discovery, Immunometabolism, Janssen Research & Development, La Jolla, CA 92121
| | - Yasuyo Sano
- Cardiovascular and Metabolism discovery, Immunometabolism, Janssen Research & Development, La Jolla, CA 92121
| | - Sebastiano Archilei
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - Pejman Soroosh
- Cardiovascular and Metabolism discovery, Immunometabolism, Janssen Research & Development, La Jolla, CA 92121
| | - Jerrold M Olefsky
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - Ariel E Feldstein
- Department of Pediatrics, School of Medicine, University of California, San Diego, CA 92093
| | - Tatiana Kisseleva
- Department of Surgery, School of Medicine, University of California, San Diego, CA 92093
| | - Rohit Loomba
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California, San Diego, CA 92093
| | - David A Brenner
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
- Cancer Genome and Epigenetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Debanjan Dhar
- Department of Medicine, School of Medicine, University of California, San Diego, CA 92093
- Cancer Genome and Epigenetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
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Zhou W, He J, Shen G, Liu Y, Zhao P, Li J. TREM2-dependent activation of microglial cell protects photoreceptor cell during retinal degeneration via PPARγ and CD36. Cell Death Dis 2024; 15:623. [PMID: 39187498 PMCID: PMC11347571 DOI: 10.1038/s41419-024-07002-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: 03/29/2024] [Revised: 08/09/2024] [Accepted: 08/13/2024] [Indexed: 08/28/2024]
Abstract
Retinal degeneration is a collection of devastating conditions with progressive loss of vision which often lead to blindness. Research on retinal microglial cells offers great therapeutic potential in deterring the progression of degeneration. This study explored the mechanisms underlying the TREM2-mediated protective function of activated microglial cells during retinal degeneration. N-methyl-N-nitrosourea (MNU)-induced retinal degeneration was established in C57BL/6 J (WT) and Trem2 knockout (Trem2-/-) mice. We discovered that MNU treatment led to the concurrent processes of photoreceptor apoptosis and microglia infiltration. A significant upregulation of disease-associated microglia signature genes was observed during photoreceptor degeneration. Following MNU treatment, Trem2-/- mice showed exacerbated photoreceptor cell death, decreased microglia migration and phagocytosis, reduced microglial PPARγ activation and CD36 expression. Pharmaceutical activation of PPARγ promoted microglial migration, ameliorated photoreceptor degeneration and restored CD36 expression in MNU-treated Trem2-/- mice. Inhibition of CD36 activity worsened photoreceptor degeneration in MNU-treated WT mice. Our findings suggested that the protective effect of microglia during retinal degeneration was dependent on Trem2 expression and carried out via the activation of PPARγ and the consequent upregulation of CD36 expression. Our study linked TREM2 signaling with PPARγ activation, and provided a potential therapeutic target for the management of retinal degeneration.
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Affiliation(s)
- Wenchuan Zhou
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Jincan He
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Guiyan Shen
- Institute of Traditional Chinese Medicine and Stem Cell Research, College of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Ya Liu
- Institute of Traditional Chinese Medicine and Stem Cell Research, College of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Peiquan Zhao
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Jing Li
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
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Kang H, Gu X, Cao S, Tong Z, Song N. Integrated multi-omics analyses reveal the pro-inflammatory and pro-fibrotic pulmonary macrophage subcluster in silicosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:116899. [PMID: 39181076 DOI: 10.1016/j.ecoenv.2024.116899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 08/10/2024] [Accepted: 08/15/2024] [Indexed: 08/27/2024]
Abstract
BACKGROUND Silicosis is a lethal occupational disease caused by long-term exposure to respirable silica dust. Pulmonary macrophages play a crucial role in mediating the initiation of silicosis. However, the phenotypic and functional heterogeneities of pulmonary macrophages in silicosis have not been well-studied. METHODS The silicosis mouse model was established by intratracheal administration of silica suspension. Bronchoalveolar lavage fluids (BALFs) of mice were collected for the multiplex cytokine analysis. Single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics were performed to reveal the heterogeneity and spatial localization of macrophages in the lung tissues. The formation of the fibrotic nodules was characterized by histology, hydroxyproline assay, and immunohistochemical staining, respectively. The expression of the pro-inflammatory or pro-fibrotic genes was investigated by quantitative polymerase chain reaction (qPCR). RESULTS We found that the level of pro-inflammatory cytokines and chemokines is significantly increased in the BALFs of silicosis mice. Apparent collagen deposition can also be observed in the silicotic lung tissues. By scRNA-seq, we have identified a subpopulation of Mmp12hi macrophages significantly expanding in the lung tissues of mice with silicosis. Spatial transcriptomics analysis further confirmed that the Mmp12hi macrophages are mainly enriched in silicosis nodules. Pseudotime trajectory showed that these Mmp12hi macrophages, highly expressing both pro-inflammatory and pro-fibrotic genes, are derived from Ly6c+ monocytes. Additionally, 4-octyl itaconate (4-OI) treatment, which can alleviate pulmonary fibrosis in silicosis mice, also reduces the enrichment of the Mmp12hi macrophages. Moreover, we found a subset of macrophages in BALFs derived from patients with silicosis exhibited similar characteristics of Mmp12hi macrophages in silicosis mice models. CONCLUSIONS Our study suggested that a group of Mmp12hi macrophages highly express both pro-inflammatory and pro-fibrotic factors in silicosis mice, and thus may contribute to the progression of fibrosis. The findings have proposed new insights for understanding the heterogeneity of lung macrophages in silicosis, suggesting that the subset of Mmp12hi macrophages may be a potential therapy target to further halt the progression of silicosis.
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Affiliation(s)
- Hanyujie Kang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Xueqing Gu
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Siyu Cao
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
| | - Nan Song
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China; Medical Research Center, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
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Mackay CDA, Meechem MB, Patel VB. Macrophages in vascular disease: Roles of mitochondria and metabolic mechanisms. Vascul Pharmacol 2024:107419. [PMID: 39181483 DOI: 10.1016/j.vph.2024.107419] [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: 06/18/2024] [Revised: 08/16/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Macrophages are a dynamic cell type of the immune system implicated in the pathophysiology of vascular diseases and are a major contributor to pathological inflammation. Excessive macrophage accumulation, activation, and polarization is observed in aortic aneurysm (AA), atherosclerosis, and pulmonary arterial hypertension. In general, macrophages become activated and polarized to a pro-inflammatory phenotype, which dramatically changes cell behavior to become pro-inflammatory and infiltrative. These cell types become cumbersome and fail to be cleared by normal mechanisms such as autophagy. The result is a hyper-inflammatory environment causing the recruitment of adjacent cells and circulating immune cells to further augment the inflammatory response. In AA, this leads to excessive ECM degradation and chemokine secretion, ultimately causing macrophages to dominate the immune cell landscape in the aortic wall. In atherosclerosis, monocytes are recruited to the vascular wall, where they polarize to the pro-inflammatory phenotype and induce inflammatory pathway activation. This leads to the development of foam cells, which significantly contribute to neointima and necrotic core formation in atherosclerotic plaques. Pro-inflammatory macrophages, which affect other vascular diseases, present with fragmented mitochondria and corresponding metabolic dysfunction. Targeting macrophage mitochondrial dynamics has proved to be an exciting potential therapeutic approach to combat vascular disease. This review will summarize mitochondrial and metabolic mechanisms of macrophage activation, polarization, and accumulation in vascular diseases.
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Affiliation(s)
- Cameron D A Mackay
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Megan B Meechem
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Vaibhav B Patel
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada.
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Motevasseli M, Darvishi M, Khoshnevisan A, Zeinalizadeh M, Saffar H, Bayat S, Najafi A, Abbaspour MJ, Mamivand A, Olson SB, Tabrizi M. Distinct tumor-TAM interactions in IDH-stratified glioma microenvironments unveiled by single-cell and spatial transcriptomics. Acta Neuropathol Commun 2024; 12:133. [PMID: 39148129 PMCID: PMC11328419 DOI: 10.1186/s40478-024-01837-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Accepted: 07/02/2024] [Indexed: 08/17/2024] Open
Abstract
Tumor-associated macrophages (TAMs) residing in the tumor microenvironment (TME) are characterized by their pivotal roles in tumor progression, antitumor immunity, and TME remodeling. However, a thorough comparative characterization of tumor-TAM crosstalk across IDH-defined categories of glioma remains elusive, likely contributing to mixed outcomes in clinical trials. We delineated the phenotypic heterogeneity of TAMs across IDH-stratified gliomas. Notably, two TAM subsets with a mesenchymal phenotype were enriched in IDH-WT glioblastoma (GBM) and correlated with poorer patient survival and reduced response to anti-PD-1 immune checkpoint inhibitor (ICI). We proposed SLAMF9 receptor as a potential therapeutic target. Inference of gene regulatory networks identified PPARG, ELK1, and MXI1 as master transcription factors of mesenchymal BMD-TAMs. Our analyses of reciprocal tumor-TAM interactions revealed distinct crosstalk in IDH-WT tumors, including ANXA1-FPR1/3, FN1-ITGAVB1, VEGFA-NRP1, and TNFSF12-TNFRSF12A with known contribution to immunosuppression, tumor proliferation, invasion and TAM recruitment. Spatially resolved transcriptomics further elucidated the architectural organization of highlighted communications. Furthermore, we demonstrated significant upregulation of ANXA1, FN1, NRP1, and TNFRSF12A genes in IDH-WT tumors using bulk RNA-seq and RT-qPCR. Longitudinal expression analysis of candidate genes revealed no difference between primary and recurrent tumors indicating that the interactive network of malignant states with TAMs does not drastically change upon recurrence. Collectively, our study offers insights into the unique cellular composition and communication of TAMs in glioma TME, revealing novel vulnerabilities for therapeutic interventions in IDH-WT GBM.
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Affiliation(s)
- Meysam Motevasseli
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Darvishi
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Khoshnevisan
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Zeinalizadeh
- Department of Neurosurgery, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Hiva Saffar
- Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shiva Bayat
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Najafi
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Javad Abbaspour
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Mamivand
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Susan B Olson
- Molecular and Medical Genetics, Knight Diagnostics Laboratories, Oregon Health and Science University, Portland, OR, USA
| | - Mina Tabrizi
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Molecular and Medical Genetics, Knight Diagnostics Laboratories, Oregon Health and Science University, Portland, OR, USA.
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Whytock KL, Divoux A, Sun Y, Pino MF, Yu G, Jin CA, Robino JJ, Plekhanov A, Varlamov O, Smith SR, Walsh MJ, Sparks LM. Aging human abdominal subcutaneous white adipose tissue at single cell resolution. Aging Cell 2024:e14287. [PMID: 39141531 DOI: 10.1111/acel.14287] [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: 02/06/2024] [Revised: 07/10/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024] Open
Abstract
White adipose tissue (WAT) is a robust energy storage and endocrine organ critical for maintaining metabolic health as we age. Our aim was to identify cell-specific transcriptional aberrations that occur in WAT with aging. We leveraged full-length snRNA-Seq and histology to characterize the cellular landscape of human abdominal subcutaneous WAT in a prospective cohort of 10 younger (≤30 years) and 10 older individuals (≥65 years) balanced for sex and body mass index (BMI). The older group had greater cholesterol, very-low-density lipoprotein, triglycerides, thyroid stimulating hormone, and aspartate transaminase compared to the younger group (p < 0.05). We highlight that aging WAT is associated with adipocyte hypertrophy, increased proportions of lipid-associated macrophages and mast cells, an upregulation of immune responses linked to fibrosis in pre-adipocyte, adipocyte, and vascular populations, and highlight CXCL14 as a biomarker of these processes. We show that older WAT has elevated levels of senescence marker p16 in adipocytes and identify the adipocyte subpopulation driving this senescence profile. We confirm that these transcriptional and phenotypical changes occur without overt fibrosis and in older individuals that have comparable WAT insulin sensitivity to the younger individuals.
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Affiliation(s)
- K L Whytock
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
| | - A Divoux
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
| | - Y Sun
- Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - M F Pino
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
| | - G Yu
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
| | - C A Jin
- Department of Genetics, School of Medicine, Stanford University, Stanford, California, USA
| | - J J Robino
- Divisions of Metabolic Health and Disease, Oregon National Primate Research Center, Beaverton, Oregon, USA
| | - A Plekhanov
- Divisions of Metabolic Health and Disease, Oregon National Primate Research Center, Beaverton, Oregon, USA
| | - O Varlamov
- Divisions of Metabolic Health and Disease, Oregon National Primate Research Center, Beaverton, Oregon, USA
| | - S R Smith
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
| | - M J Walsh
- Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - L M Sparks
- Translational Research Institute, AdventHealth, Orlando, Florida, USA
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Zhou Y, Wang Y, Wu T, Zhang A, Li Y. Association between obesity and systemic immune inflammation index, systemic inflammation response index among US adults: a population-based analysis. Lipids Health Dis 2024; 23:245. [PMID: 39127686 DOI: 10.1186/s12944-024-02240-8] [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: 07/01/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Obesity is characterized by a chronic low-grade inflammatory condition. Two emerging inflammatory biomarkers, the systemic immune-inflammation index (SII) and the systemic inflammation response index (SIRI), have gained attention. However, the relationships between obesity and SII/SRI remain unclear. METHODS In this study, we analyzed data from the National Health and Nutrition Examination Survey (NHANES) from 2011 to 2018 among adults. SII-SIRI/SII/SIRI were categorized into three groups based on tertiles. The association between obesity and SII-SIRI/SII/SIRI was assessed by multivariable logistic regression models. Restricted cubic spline (RCS) plots were used to examine the nonlinear association between obesity and SII/SIRI. Finally, potential independent associations between obesity and SII/SIRI were further explored using subgroup analyses. RESULTS The study included 20,011 adults, of whom 7,890 (39.32%) were obesity. In model 1, participants in the high (Q3) level of SII-SIRI had a significantly association with obesity than those in the low (Q1) level group. The high level of SII and SIRI were positively associated with obesity as compared to low levels. Model 2 revealed a positive association between obesity and high levels of SII-SIRI/SII/SIRI. Model 3 demonstrated a similar trend. RCS curves revealed a nonlinear association linking obesity to SII/SIRI. Subgroup analysis showed an interaction between SII/SIRI and age. CONCLUSIONS Our research suggested that obesity was positively associated with SII-SIRI/SII/SIRI in U.S. adults. SII/SIRI may represent a cost-effective and direct approach to assessing obesity.
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Affiliation(s)
- Yaoyao Zhou
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310051, China
- National Institute of Traditional Chinese Medicine Constitution and Preventive Treatment of Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yaqi Wang
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310051, China
- National Institute of Traditional Chinese Medicine Constitution and Preventive Treatment of Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Taotao Wu
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310051, China
- National Institute of Traditional Chinese Medicine Constitution and Preventive Treatment of Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Anqi Zhang
- National Institute of Traditional Chinese Medicine Constitution and Preventive Treatment of Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yingshuai Li
- National Institute of Traditional Chinese Medicine Constitution and Preventive Treatment of Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China.
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Zhang YL, Tang TT, Wang B, Wen Y, Feng Y, Yin Q, Jiang W, Zhang Y, Li ZL, Wu M, Wu QL, Song J, Crowley SD, Lan HY, Lv LL, Liu BC. Identification of a Novel ECM Remodeling Macrophage Subset in AKI to CKD Transition by Integrative Spatial and Single-Cell Analysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309752. [PMID: 39119903 DOI: 10.1002/advs.202309752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 06/14/2024] [Indexed: 08/10/2024]
Abstract
The transition from acute kidney injury (AKI) to chronic kidney disease (CKD) is a critical clinical issue. Although previous studies have suggested macrophages as a key player in promoting inflammation and fibrosis during this transition, the heterogeneity and dynamic characterization of macrophages are still poorly understood. Here, we used integrated single-cell RNA sequencing and spatial transcriptomic to characterize the spatiotemporal heterogeneity of macrophages in murine AKI-to-CKD model of unilateral ischemia-reperfusion injury. A marked increase in macrophage infiltration at day 1 was followed by a second peak at day 14 post AKI. Spatiotemporal profiling revealed that injured tubules and macrophages co-localized early after AKI, whereas in late chronic stages had spatial proximity to fibroblasts. Further pseudotime analysis revealed two distinct lineages of macrophages in this transition: renal resident macrophages differentiated into the pro-repair subsets, whereas infiltrating monocyte-derived macrophages contributed to chronic inflammation and fibrosis. A novel macrophage subset, extracellular matrix remodeling-associated macrophages (EAMs) originating from monocytes, linked to renal fibrogenesis and communicated with fibroblasts via insulin-like growth factors (IGF) signalling. In sum, our study identified the spatiotemporal dynamics of macrophage heterogeneity with a unique subset of EAMs in AKI-to-CKD transition, which could be a potential therapeutic target for preventing CKD development.
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Affiliation(s)
- Yi-Lin Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Yi Wen
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Ye Feng
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Qing Yin
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Wei Jiang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Yue Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Min Wu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Qiu-Li Wu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Jing Song
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Steven D Crowley
- Division of Nephrology, Department of Medicine, Duke University and Durham VA Medical Centers, Durham, NC, 27705, USA
| | - Hui-Yao Lan
- Departments of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, and Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, 210009, China
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Huang H, Wu F, Yu Y, Xu B, Chen D, Huo Y, Li S. Multi-transcriptomics analysis of microvascular invasion-related malignant cells and development of a machine learning-based prognostic model in hepatocellular carcinoma. Front Immunol 2024; 15:1436131. [PMID: 39176099 PMCID: PMC11338809 DOI: 10.3389/fimmu.2024.1436131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 07/26/2024] [Indexed: 08/24/2024] Open
Abstract
Background Microvascular invasion (MVI) stands as a pivotal pathological hallmark of hepatocellular carcinoma (HCC), closely linked to unfavorable prognosis, early recurrence, and metastatic progression. However, the precise mechanistic underpinnings governing its onset and advancement remain elusive. Methods In this research, we downloaded bulk RNA-seq data from the TCGA and HCCDB repositories, single-cell RNA-seq data from the GEO database, and spatial transcriptomics data from the CNCB database. Leveraging the Scissor algorithm, we delineated prognosis-related cell subpopulations and discerned a distinct MVI-related malignant cell subtype. A comprehensive exploration of these malignant cell subpopulations was undertaken through pseudotime analysis and cell-cell communication scrutiny. Furthermore, we engineered a prognostic model grounded in MVI-related genes, employing 101 algorithm combinations integrated by 10 machine-learning algorithms on the TCGA training set. Rigorous evaluation ensued on internal testing sets and external validation sets, employing C-index, calibration curves, and decision curve analysis (DCA). Results Pseudotime analysis indicated that malignant cells, showing a positive correlation with MVI, were primarily concentrated in the early to middle stages of differentiation, correlating with an unfavorable prognosis. Importantly, these cells showed significant enrichment in the MYC pathway and were involved in extensive interactions with diverse cell types via the MIF signaling pathway. The association of malignant cells with the MVI phenotype was corroborated through validation in spatial transcriptomics data. The prognostic model we devised demonstrated exceptional sensitivity and specificity, surpassing the performance of most previously published models. Calibration curves and DCA underscored the clinical utility of this model. Conclusions Through integrated multi-transcriptomics analysis, we delineated MVI-related malignant cells and elucidated their biological functions. This study provided novel insights for managing HCC, with the constructed prognostic model offering valuable support for clinical decision-making.
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Affiliation(s)
| | | | | | | | | | | | - Shaoqiang Li
- Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
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10
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Li YS, Lai WP, Yin K, Zheng MM, Tu HY, Guo WB, Li L, Lin SH, Wang Z, Zeng L, Jiang BY, Chen ZH, Zhou Q, Zhang XC, Yang JJ, Zhong WZ, Yang XN, Wang BC, Pan Y, Chen HJ, Xiao FM, Sun H, Sun YL, Bai XY, Ke EE, Lin JX, Liu SYM, Li Y, Luo OJ, Wu YL. Lipid-associated macrophages for osimertinib resistance and leptomeningeal metastases in NSCLC. Cell Rep 2024; 43:114613. [PMID: 39116206 DOI: 10.1016/j.celrep.2024.114613] [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: 08/21/2023] [Revised: 06/06/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024] Open
Abstract
Leptomeningeal metastases (LMs) remain a devastating complication of non-small cell lung cancer (NSCLC), particularly following osimertinib resistance. We conducted single-cell RNA sequencing on cerebrospinal fluid (CSF) from EGFR-mutant NSCLC with central nervous system metastases. We found that macrophages of LMs displayed functional and phenotypic heterogeneity and enhanced immunosuppressive properties. A population of lipid-associated macrophages, namely RNASE1_M, were linked to osimertinib resistance and LM development, which was regulated by Midkine (MDK) from malignant epithelial cells. MDK exhibited significant elevation in both CSF and plasma among patients with LMs, with higher MDK levels correlating to poorer outcomes in an independent cohort. Moreover, MDK could promote macrophage M2 polarization with lipid metabolism and phagocytic function. Furthermore, malignant epithelial cells in CSF, particularly after resistance to osimertinib, potentially achieved immune evasion through CD47-SIRPA interactions with RNASE1_M. In conclusion, we revealed a specific subtype of macrophages linked to osimertinib resistance and LM development, providing a potential target to overcome LMs.
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Affiliation(s)
- Yang-Si Li
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; School of Medicine, South China University of Technology, Guangzhou 510006, China; Department of Oncology, Heyuan Hospital of Guangdong Provincial People's Hospital, Heyuan People's Hospital, Heyuan 517000, China
| | - Wen-Pu Lai
- Department of Hematology, First Affiliated Hospital, Jinan University, Guangzhou, China; Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou 510632, China; Department of Systems Biomedical Sciences, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Kai Yin
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Mei-Mei Zheng
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Hai-Yan Tu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Wei-Bang Guo
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Liang Li
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Shou-Heng Lin
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510700, China
| | - Zhen Wang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Lu Zeng
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Ben-Yuan Jiang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Zhi-Hong Chen
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xu-Chao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Jin-Ji Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Wen-Zhao Zhong
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xue-Ning Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Bin-Chao Wang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Yi Pan
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Hua-Jun Chen
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Fa-Man Xiao
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Hao Sun
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Yue-Li Sun
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Xiao-Yan Bai
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - E-E Ke
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Jia-Xin Lin
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Si-Yang Maggie Liu
- Department of Hematology, First Affiliated Hospital, Jinan University, Guangzhou, China; Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Yangqiu Li
- Department of Hematology, First Affiliated Hospital, Jinan University, Guangzhou, China; Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Oscar Junhong Luo
- Department of Systems Biomedical Sciences, School of Medicine, Jinan University, Guangzhou 510632, China.
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080 China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; School of Medicine, South China University of Technology, Guangzhou 510006, China.
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11
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Kloosterman DJ, Erbani J, Boon M, Farber M, Handgraaf SM, Ando-Kuri M, Sánchez-López E, Fontein B, Mertz M, Nieuwland M, Liu NQ, Forn-Cuni G, van der Wel NN, Grootemaat AE, Reinalda L, van Kasteren SI, de Wit E, Ruffell B, Snaar-Jagalska E, Petrecca K, Brandsma D, Kros A, Giera M, Akkari L. Macrophage-mediated myelin recycling fuels brain cancer malignancy. Cell 2024:S0092-8674(24)00824-9. [PMID: 39137777 DOI: 10.1016/j.cell.2024.07.030] [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: 05/27/2023] [Revised: 04/26/2024] [Accepted: 07/18/2024] [Indexed: 08/15/2024]
Abstract
Tumors growing in metabolically challenged environments, such as glioblastoma in the brain, are particularly reliant on crosstalk with their tumor microenvironment (TME) to satisfy their high energetic needs. To study the intricacies of this metabolic interplay, we interrogated the heterogeneity of the glioblastoma TME using single-cell and multi-omics analyses and identified metabolically rewired tumor-associated macrophage (TAM) subpopulations with pro-tumorigenic properties. These TAM subsets, termed lipid-laden macrophages (LLMs) to reflect their cholesterol accumulation, are epigenetically rewired, display immunosuppressive features, and are enriched in the aggressive mesenchymal glioblastoma subtype. Engulfment of cholesterol-rich myelin debris endows subsets of TAMs to acquire an LLM phenotype. Subsequently, LLMs directly transfer myelin-derived lipids to cancer cells in an LXR/Abca1-dependent manner, thereby fueling the heightened metabolic demands of mesenchymal glioblastoma. Our work provides an in-depth understanding of the immune-metabolic interplay during glioblastoma progression, thereby laying a framework to unveil targetable metabolic vulnerabilities in glioblastoma.
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Affiliation(s)
- Daan J Kloosterman
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Johanna Erbani
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Menno Boon
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Martina Farber
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Shanna M Handgraaf
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Masami Ando-Kuri
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Elena Sánchez-López
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Bauke Fontein
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Marjolijn Mertz
- Bioimaging Facility, Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Marja Nieuwland
- Genomics Core Facility, Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Ning Qing Liu
- Department of Hematology, Erasmus Medical Center Cancer Institute, Rotterdam, the Netherlands
| | - Gabriel Forn-Cuni
- Institute of Biology Leiden, Leiden University, Leiden, the Netherlands
| | - Nicole N van der Wel
- Electron Microscopy Centre Amsterdam, Medical Biology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Anita E Grootemaat
- Electron Microscopy Centre Amsterdam, Medical Biology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Luuk Reinalda
- The Institute of Chemical Immunology, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Sander I van Kasteren
- The Institute of Chemical Immunology, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Elzo de Wit
- Division of Gene Regulation, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands
| | - Brian Ruffell
- Department of Immunology, Department of Breast Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | | | - Kevin Petrecca
- Montreal Neurological Institute-Hospital, McGill University Health Centre and Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Dieta Brandsma
- Department of Neuro-Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, 1066CX Amsterdam, the Netherlands
| | - Alexander Kros
- Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Leila Akkari
- Division of Tumour Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066CX Amsterdam, the Netherlands.
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12
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Chen V, Zhang J, Chang J, Beg MA, Vick L, Wang D, Gupta A, Wang Y, Zhang Z, Dai W, Kim M, Song S, Pereira D, Zheng Z, Sodhi K, Shapiro JI, Silverstein RL, Malarkannan S, Chen Y. CD36 restricts lipid-associated macrophages accumulation in white adipose tissues during atherogenesis. Front Cardiovasc Med 2024; 11:1436865. [PMID: 39156133 PMCID: PMC11327822 DOI: 10.3389/fcvm.2024.1436865] [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: 05/22/2024] [Accepted: 07/01/2024] [Indexed: 08/20/2024] Open
Abstract
Visceral white adipose tissues (WAT) regulate systemic lipid metabolism and inflammation. Dysfunctional WAT drive chronic inflammation and facilitate atherosclerosis. Adipose tissue-associated macrophages (ATM) are the predominant immune cells in WAT, but their heterogeneity and phenotypes are poorly defined during atherogenesis. The scavenger receptor CD36 mediates ATM crosstalk with other adipose tissue cells, driving chronic inflammation. Here, we combined the single-cell RNA sequencing technique with cell metabolic and functional assays on major WAT ATM subpopulations using a diet-induced atherosclerosis mouse model (Apoe-null). We also examined the role of CD36 using Apoe/Cd36 double-null mice. Based on transcriptomics data and differential gene expression analysis, we identified a previously undefined group of ATM displaying low viability and high lipid metabolism and labeled them as "unhealthy macrophages". Their phenotypes suggest a subpopulation of ATM under lipid stress. We also identified lipid-associated macrophages (LAM), which were previously described in obesity. Interestingly, LAM increased 8.4-fold in Apoe/Cd36 double-null mice on an atherogenic diet, but not in Apoe-null mice. The increase in LAM was accompanied by more ATM lipid uptake, reduced adipocyte hypertrophy, and less inflammation. In conclusion, CD36 mediates a delicate balance between lipid metabolism and inflammation in visceral adipose tissues. Under atherogenic conditions, CD36 deficiency reduces inflammation and increases lipid metabolism in WAT by promoting LAM accumulation.
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Affiliation(s)
- Vaya Chen
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Jue Zhang
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Jackie Chang
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Mirza Ahmar Beg
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Lance Vick
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Dandan Wang
- Versiti Blood Research Institute, Milwaukee, WI, United States
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Ankan Gupta
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Yaxin Wang
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Ziyu Zhang
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Wen Dai
- Versiti Blood Research Institute, Milwaukee, WI, United States
| | - Mindy Kim
- Versiti Blood Research Institute, Milwaukee, WI, United States
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Shan Song
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Diseases, Shijiazhuang, China
| | - Duane Pereira
- Department of Surgery, Biomedical Sciences, and Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Ze Zheng
- Versiti Blood Research Institute, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Komal Sodhi
- Department of Surgery, Biomedical Sciences, and Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Joseph I. Shapiro
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Roy L. Silverstein
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Subramaniam Malarkannan
- Versiti Blood Research Institute, Milwaukee, WI, United States
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Yiliang Chen
- Versiti Blood Research Institute, Milwaukee, WI, United States
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
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13
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Pang Y, Zhang L, Zhong Z, Yang N, Zheng Y, Ding W. Nobiletin restores HFD-induced enteric nerve injury by regulating enteric glial activation and the GDNF/AKT/FOXO3a/P21 pathway. Mol Med 2024; 30:113. [PMID: 39095693 PMCID: PMC11297793 DOI: 10.1186/s10020-024-00841-8] [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: 01/15/2024] [Accepted: 05/17/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND To explore whether nobiletin has a protective effect on high-fat diet (HFD)-induced enteric nerve injury and its underlying mechanism. METHODS An obesity model was induced by a HFD. Nobiletin (100 mg/kg and 200 mg/kg) and vehicle were administered by gastric gavage for 4 weeks. Lee's index, body weight, OGTT and intestinal propulsion assays were performed before sacrifice. After sampling, lipids were detected using Bodipy 493/503; lipid peroxidation was detected using MDA and SOD kits and the expression of PGP 9.5, Trem2, GFAP, β-tubulin 3, Bax, Bcl2, Nestin, P75 NTR, SOX10 and EDU was detected using immunofluorescence. The GDNF, p-AKT, AKT, p-FOXO3a, FOXO3a and P21 proteins were detected using western blotting. The relative mRNA expression levels of NOS2 were detected via qPCR. Primary enteric neural stem cells (ENSCs) were cultured. After ENSCs were treated with palmitic acid (PA) and nobiletin, CCK-8 and caspase-3/7 activity assays were performed to evaluate proliferation and apoptosis. RESULTS HFD consumption caused colon lipid accumulation and peroxidation, induced enteric nerve damage and caused intestinal motor dysfunction. However, nobiletin reduced lipid accumulation and peroxidation in the colon; promoted Trem2, β-tubulin 3, Nestin, P75NTR, SOX10 and Bcl2 expression; inhibited Bax and GFAP expression; reduced NOS2 mRNA transcription; and regulated the GDNF/AKT/FOXO3a/P21 pathway. Nobiletin also promoted PA-induced impairment of ENSCs. CONCLUSIONS Nobiletin restored HFD-induced enteric nerve injury, which may be associated with inhibiting enteric nerve apoptosis, promoting enteric nerve survival and regulating the GDNF/AKT/FOXO3a/P21 pathway.
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Affiliation(s)
- Yueshan Pang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
- The Second Clinical Medical College, North Sichuan Medical College, Nanchong Central Hospital, Nanchong, 637000, China
| | - Li Zhang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Zhuoting Zhong
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Ni Yang
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Yali Zheng
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Weijun Ding
- Department of Fundamental Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China.
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14
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Lanman NA, Meco E, Fitchev P, Kolliegbo AK, Broman MM, Filipovich Y, Kothandaraman H, Cresswell GM, Talaty P, Antoniak M, Brumer S, Glaser AP, Higgins AM, Helfand BT, Franco OE, Crawford SE, Ratliff TL, Hayward SW, Vickman RE. Infiltrating lipid-rich macrophage subpopulations identified as a regulator of increasing prostate size in human benign prostatic hyperplasia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.07.597992. [PMID: 38915654 PMCID: PMC11195107 DOI: 10.1101/2024.06.07.597992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Macrophages exhibit marked phenotypic heterogeneity within and across disease states, with lipid metabolic reprogramming contributing to macrophage activation and heterogeneity. Chronic inflammation has been observed in human benign prostatic hyperplasia (BPH) tissues, however macrophage activation states and their contributions to this hyperplastic disease have not been defined. We postulated that a shift in macrophage phenotypes with increasing prostate size could involve metabolic alterations resulting in prostatic epithelial or stromal hyperplasia. Single-cell RNA-seq of CD45+ transition zone leukocytes from 10 large (>90 grams) and 10 small (<40 grams) human prostates was conducted. Macrophage subpopulations were defined using marker genes. BPH macrophages do not distinctly categorize into M1 and M2 phenotypes. Instead, macrophages with neither polarization signature preferentially accumulate in large versus small prostates. Specifically, macrophage subpopulations with altered lipid metabolism pathways, demarcated by TREM2 and MARCO expression, significantly accumulate with increased prostate volume. TREM2+ and MARCO+ macrophage abundance positively correlates with patient body mass index and urinary symptom scores. TREM2+ macrophages have significantly higher neutral lipid than TREM2- macrophages from BPH tissues. Lipid-rich macrophages were observed to localize within the stroma in BPH tissues. In vitro studies indicate that lipid-loaded macrophages increase prostate epithelial and stromal cell proliferation compared to control macrophages. These data define two new BPH immune subpopulations, TREM2+ and MARCO+ macrophages, and suggest that lipid-rich macrophages may exacerbate lower urinary tract symptoms in patients with large prostates. Further investigation is needed to evaluate the therapeutic benefit of targeting these cells in BPH.
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15
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Chan MM, He L, Finck BN, Schilling JD, Daemen S. Cutting Edge: Hepatic Stellate Cells Drive the Phenotype of Monocyte-derived Macrophages to Regulate Liver Fibrosis in Metabolic Dysfunction-associated Steatohepatitis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:251-256. [PMID: 39008791 PMCID: PMC11254326 DOI: 10.4049/jimmunol.2300847] [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: 12/27/2023] [Accepted: 05/21/2024] [Indexed: 07/17/2024]
Abstract
Metabolic dysfunction-associated steatohepatitis (MASH) is characterized by infiltration of monocyte-derived macrophages (MdMs) into the liver; however, the function of these macrophages is largely unknown. We previously demonstrated that a population of MdMs, referred to as hepatic lipid-associated macrophages (LAMs), assemble into aggregates termed hepatic crown-like structures in areas of liver fibrosis. Intriguingly, decreasing MdM recruitment resulted in increased liver fibrosis, suggesting that LAMs contribute to antifibrotic pathways in MASH. In this study, we determined that hepatic crown-like structures are characterized by intimate interactions between activated hepatic stellate cells (HSCs) and macrophages in a collagen matrix in a mouse model of MASH. MASH macrophages displayed collagen-degrading capacities, and HSCs derived from MASH livers promoted expression of LAM marker genes and acquisition of a collagen-degrading phenotype in naive macrophages. These data suggest that crosstalk between HSCs and macrophages may contribute to collagen degradation MASH.
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Affiliation(s)
- Mandy M. Chan
- Washington University School of Medicine, St. Louis, MO
- Department of Pathology and Immunology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Li He
- Washington University School of Medicine, St. Louis, MO
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Brian N. Finck
- Washington University School of Medicine, St. Louis, MO
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Joel D. Schilling
- Washington University School of Medicine, St. Louis, MO
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
- Department of Pathology and Immunology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Sabine Daemen
- Washington University School of Medicine, St. Louis, MO
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
- Current affiliation: Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, The Netherlands
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16
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Harris MA, Savas P, Virassamy B, O'Malley MMR, Kay J, Mueller SN, Mackay LK, Salgado R, Loi S. Towards targeting the breast cancer immune microenvironment. Nat Rev Cancer 2024; 24:554-577. [PMID: 38969810 DOI: 10.1038/s41568-024-00714-6] [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] [Accepted: 05/31/2024] [Indexed: 07/07/2024]
Abstract
The tumour immune microenvironment is shaped by the crosstalk between cancer cells, immune cells, fibroblasts, endothelial cells and other stromal components. Although the immune tumour microenvironment (TME) serves as a source of therapeutic targets, it is also considered a friend or foe to tumour-directed therapies. This is readily illustrated by the importance of T cells in triple-negative breast cancer (TNBC), culminating in the advent of immune checkpoint therapy in combination with cytotoxic chemotherapy as standard of care for both early and advanced-stage TNBC, as well as recent promising signs of efficacy in a subset of hormone receptor-positive disease. In this Review, we discuss the various components of the immune TME in breast cancer and therapies that target or impact the immune TME, as well as the complexity of host physiology.
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Affiliation(s)
- Michael A Harris
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Peter Savas
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Balaji Virassamy
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Megan M R O'Malley
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Jasmine Kay
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia
| | - Roberto Salgado
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Pathology, ZAS Ziekenhuizen, Antwerp, Belgium
| | - Sherene Loi
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia.
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
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17
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Han SM, Nahmgoong H, Yim KM, Kim JB. How obesity affects adipocyte turnover. Trends Endocrinol Metab 2024:S1043-2760(24)00185-1. [PMID: 39095230 DOI: 10.1016/j.tem.2024.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
Cellular turnover is fundamental for tissue homeostasis and integrity. Adipocyte turnover, accounting for 4% of the total cellular mass turnover in humans, is essential for adipose tissue homeostasis during metabolic stress. In obesity, an altered adipose tissue microenvironment promotes adipocyte death. To clear dead adipocytes, macrophages are recruited and form a distinctive structure known as crown-like structure; subsequently, new adipocytes are generated from adipose stem and progenitor cells in the adipogenic niche to replace dead adipocytes. Accumulating evidence indicates that adipocyte death, clearance, and adipogenesis are sophisticatedly orchestrated during adipocyte turnover. In this Review, we summarize our current understandings of each step in adipocyte turnover, discussing its key players and regulatory mechanisms.
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Affiliation(s)
- Sang Mun Han
- National Leader Research Initiatives Center for Adipocyte Structure and Function, Institute of Molecular Biology and Genetics, School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hahn Nahmgoong
- National Leader Research Initiatives Center for Adipocyte Structure and Function, Institute of Molecular Biology and Genetics, School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Min Yim
- National Leader Research Initiatives Center for Adipocyte Structure and Function, Institute of Molecular Biology and Genetics, School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae Bum Kim
- National Leader Research Initiatives Center for Adipocyte Structure and Function, Institute of Molecular Biology and Genetics, School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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18
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Kim J, Seki E. Unveiling the cancer risk nexus of the steatotic liver. Trends Endocrinol Metab 2024; 35:708-719. [PMID: 38531699 PMCID: PMC11321945 DOI: 10.1016/j.tem.2024.02.017] [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: 01/09/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024]
Abstract
Steatotic liver, characterized by the accumulation of fat in the liver, poses significant health risks including metabolic dysfunction-associated steatotic liver disease (MASLD) and an elevated risk of primary liver cancer. Emerging evidence indicates a robust association between steatotic liver and increased susceptibility to extrahepatic primary cancers and their metastases. The deposition of fat induces dynamic changes in hepatic microenvironments, thereby fostering inflammation and immune responses that enhance liver metastasis from extrahepatic primary cancers. This review explores the impact of steatotic liver on hepatic carcinogenesis and metastasis from extrahepatic cancers, with a specific focus on hepatocyte-derived factors and the immune microenvironment. By emphasizing novel conclusions, this article underscores the timely relevance of understanding these intricate connections.
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Affiliation(s)
- Jieun Kim
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Ekihiro Seki
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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19
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Dunsmore G, Guo W, Li Z, Bejarano DA, Pai R, Yang K, Kwok I, Tan L, Ng M, De La Calle Fabregat C, Yatim A, Bougouin A, Mulder K, Thomas J, Villar J, Bied M, Kloeckner B, Dutertre CA, Gessain G, Chakarov S, Liu Z, Scoazec JY, Lennon-Dumenil AM, Marichal T, Sautès-Fridman C, Fridman WH, Sharma A, Su B, Schlitzer A, Ng LG, Blériot C, Ginhoux F. Timing and location dictate monocyte fate and their transition to tumor-associated macrophages. Sci Immunol 2024; 9:eadk3981. [PMID: 39058763 DOI: 10.1126/sciimmunol.adk3981] [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: 08/19/2023] [Accepted: 07/03/2024] [Indexed: 07/28/2024]
Abstract
Tumor-associated macrophages (TAMs) are a heterogeneous population of cells whose phenotypes and functions are shaped by factors that are incompletely understood. Herein, we asked when and where TAMs arise from blood monocytes and how they evolve during tumor development. We initiated pancreatic ductal adenocarcinoma (PDAC) in inducible monocyte fate-mapping mice and combined single-cell transcriptomics and high-dimensional flow cytometry to profile the monocyte-to-TAM transition. We revealed that monocytes differentiate first into a transient intermediate population of TAMs that generates two longer-lived lineages of terminally differentiated TAMs with distinct gene expression profiles, phenotypes, and intratumoral localization. Transcriptome datasets and tumor samples from patients with PDAC evidenced parallel TAM populations in humans and their prognostic associations. These insights will support the design of new therapeutic strategies targeting TAMs in PDAC.
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Affiliation(s)
- Garett Dunsmore
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Université Paris-Saclay, Ile-de-France, France
| | - Wei Guo
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ziyi Li
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - David Alejandro Bejarano
- Quantitative Systems Biology, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Rhea Pai
- Curtin Medical School, Curtin University, Bentley, WA, Australia
| | - Katharine Yang
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Immanuel Kwok
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Leonard Tan
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Melissa Ng
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Carlos De La Calle Fabregat
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
| | - Aline Yatim
- Institut Curie, PSL University, INSERM U932, Immunity and Cancer, 75005 Paris, France
| | - Antoine Bougouin
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC Université Paris Cité, Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Kevin Mulder
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Université Paris-Saclay, Ile-de-France, France
| | - Jake Thomas
- Quantitative Systems Biology, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Javiera Villar
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
| | - Mathilde Bied
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Université Paris-Saclay, Ile-de-France, France
| | - Benoit Kloeckner
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Université Paris-Saclay, Ile-de-France, France
| | - Charles-Antoine Dutertre
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
| | - Grégoire Gessain
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
| | - Svetoslav Chakarov
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhaoyuan Liu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jean-Yves Scoazec
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
| | | | - Thomas Marichal
- Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO) Department, WEL Research Institute, Wavre, Belgium
| | - Catherine Sautès-Fridman
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC Université Paris Cité, Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Wolf Herman Fridman
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC Université Paris Cité, Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Ankur Sharma
- Curtin Medical School, Curtin University, Bentley, WA, Australia
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, 6 Verdun Street, Nedlands, Perth, WA 6009, Australia
- Institute of Molecular and Cellular Biology, A*STAR, Singapore 138673, Singapore
- KK Research Centre, KK Women's and Children's Hospital, Singapore 229899, Singapore
- Translational Genomics Program, Garvan Institute of Medical Research and Kinghorn Cancer Centre, Darlinghurst, NSW, Australia
| | - Bing Su
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Andreas Schlitzer
- Quantitative Systems Biology, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Lai Guan Ng
- Shanghai Immune Therapy Institute Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200010, China
- Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Camille Blériot
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Institut Necker Enfants Malades (INEM), CNRS UMR 8253, INSERM U1151, 160 rue de Vaugirard, 75015 Paris, France
| | - Florent Ginhoux
- Institut Gustave Roussy, INSERM U1015, Bâtiment de Médecine Moléculaire 114 rue Edouard Vaillant, 94800 Villejuif, France
- Université Paris-Saclay, Ile-de-France, France
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228 Singapore
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20
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Sciarretta F, Ninni A, Zaccaria F, Chiurchiù V, Bertola A, Karlinsey K, Jia W, Ceci V, Di Biagio C, Xu Z, Gaudioso F, Tortolici F, Tiberi M, Zhang J, Carotti S, Boudina S, Grumati P, Zhou B, Brestoff JR, Ivanov S, Aquilano K, Lettieri-Barbato D. Lipid-associated macrophages reshape BAT cell identity in obesity. Cell Rep 2024; 43:114447. [PMID: 38963761 DOI: 10.1016/j.celrep.2024.114447] [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: 08/31/2023] [Revised: 03/04/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024] Open
Abstract
Obesity and type 2 diabetes cause a loss in brown adipose tissue (BAT) activity, but the molecular mechanisms that drive BAT cell remodeling remain largely unexplored. Using a multilayered approach, we comprehensively mapped a reorganization in BAT cells. We uncovered a subset of macrophages as lipid-associated macrophages (LAMs), which were massively increased in genetic and dietary model of BAT expansion. LAMs participate in this scenario by capturing extracellular vesicles carrying damaged lipids and mitochondria released from metabolically stressed brown adipocytes. CD36 scavenger receptor drove LAM phenotype, and CD36-deficient LAMs were able to increase brown fat genes in adipocytes. LAMs released transforming growth factor β1 (TGF-β1), which promoted the loss of brown adipocyte identity through aldehyde dehydrogenase 1 family member A1 (Aldh1a1) induction. These findings unfold cell dynamic changes in BAT during obesity and identify LAMs as key responders to tissue metabolic stress and drivers of loss of brown adipocyte identity.
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Affiliation(s)
| | - Andrea Ninni
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Fabio Zaccaria
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Valerio Chiurchiù
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, Rome, Italy; Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | | | - Keaton Karlinsey
- Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT, USA
| | - Wentong Jia
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Veronica Ceci
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Ziyan Xu
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Francesco Gaudioso
- IRCCS Santa Lucia Foundation, Rome, Italy; Department of Biology, University of Rome Tor Vergata, Rome, Italy; PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Flavia Tortolici
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marta Tiberi
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Jiabi Zhang
- Department of Nutrition & Integrative Physiology, University of Utah, Salt Lake City, UT, USA
| | - Simone Carotti
- Integrated Research Center (PRAAB), Campus Biomedico University of Rome, Rome, Italy
| | - Sihem Boudina
- Department of Nutrition & Integrative Physiology, University of Utah, Salt Lake City, UT, USA; Molecular Medicine Program (U2M2), University of Utah, Salt Lake City, UT, USA
| | - Paolo Grumati
- Telethon Institute of Genetics and Medicine, Pozzuoli, Italy; Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Beiyan Zhou
- Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT, USA; Institute for Systems Genomics, University of Connecticut, Farmington, CT, USA
| | - Jonathan R Brestoff
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | | | - Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Daniele Lettieri-Barbato
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; IRCCS Fondazione Bietti, Rome, Italy.
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21
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Wu D, Eeda V, Maria Z, Rawal K, Herlea-Pana O, Babu Undi R, Lim HY, Wang W. Targeting IRE1α improves insulin sensitivity and thermogenesis and suppresses metabolically active adipose tissue macrophages in obesity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.17.603931. [PMID: 39071288 PMCID: PMC11275733 DOI: 10.1101/2024.07.17.603931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Overnutrition engenders the expansion of adipose tissue and the accumulation of immune cells, in particular, macrophages, in the adipose tissue, leading to chronic low-grade inflammation and insulin resistance. In obesity, several proinflammatory subpopulations of adipose tissue macrophages (ATMs) identified hitherto include the conventional "M1-like" CD11C-expressing ATM and the newly discovered metabolically activated CD9-expressing ATM; however, the relationship among ATM subpopulations is unclear. The ER stress sensor inositol-requiring enzyme 1α (IRE1α) is activated in the adipocytes and immune cells under obesity. It is unknown whether targeting IRE1α is capable of reversing insulin resistance and obesity and modulating the metabolically activated ATMs. We report that pharmacological inhibition of IRE1α RNase significantly ameliorates insulin resistance and glucose intolerance in diet-induced obesity mice. IRE1α inhibition also increases thermogenesis and energy expenditure, and hence protects against high fat diet-induced obesity. Our study shows that the "M1-like" CD11c+ ATMs are largely overlapping with but yet non-identical to CD9+ ATMs in obese white adipose tissue. Notably, IRE1α inhibition diminishes the accumulation of obesity-induced metabolically activated ATMs and "M1-like" ATMs, resulting in the curtailment of adipose inflammation and ensuing reactivation of thermogenesis, without augmentation of the alternatively activated M2 macrophage population. Our findings suggest the potential of targeting IRE1α for the therapeutic treatment of insulin resistance and obesity.
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Affiliation(s)
- Dan Wu
- Department of Genetics, Heersink School of Medicine, UAB Comprehensive Diabetes Center, University of Alabama at Birmingham, 1918 University Blvd, Birmingham, AL, 35233, United States
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Venkateswararao Eeda
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Zahra Maria
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Komal Rawal
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Oana Herlea-Pana
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Ram Babu Undi
- Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Hui-Ying Lim
- Department of Physiology, Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
| | - Weidong Wang
- Department of Genetics, Heersink School of Medicine, UAB Comprehensive Diabetes Center, University of Alabama at Birmingham, 1918 University Blvd, Birmingham, AL, 35233, United States
- Department of Medicine, Division of Endocrinology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
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22
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Akkız H, Gieseler RK, Canbay A. Liver Fibrosis: From Basic Science towards Clinical Progress, Focusing on the Central Role of Hepatic Stellate Cells. Int J Mol Sci 2024; 25:7873. [PMID: 39063116 PMCID: PMC11277292 DOI: 10.3390/ijms25147873] [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: 05/23/2024] [Revised: 06/28/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024] Open
Abstract
The burden of chronic liver disease is globally increasing at an alarming rate. Chronic liver injury leads to liver inflammation and fibrosis (LF) as critical determinants of long-term outcomes such as cirrhosis, liver cancer, and mortality. LF is a wound-healing process characterized by excessive deposition of extracellular matrix (ECM) proteins due to the activation of hepatic stellate cells (HSCs). In the healthy liver, quiescent HSCs metabolize and store retinoids. Upon fibrogenic activation, quiescent HSCs transdifferentiate into myofibroblasts; lose their vitamin A; upregulate α-smooth muscle actin; and produce proinflammatory soluble mediators, collagens, and inhibitors of ECM degradation. Activated HSCs are the main effector cells during hepatic fibrogenesis. In addition, the accumulation and activation of profibrogenic macrophages in response to hepatocyte death play a critical role in the initiation of HSC activation and survival. The main source of myofibroblasts is resident HSCs. Activated HSCs migrate to the site of active fibrogenesis to initiate the formation of a fibrous scar. Single-cell technologies revealed that quiescent HSCs are highly homogenous, while activated HSCs/myofibroblasts are much more heterogeneous. The complex process of inflammation results from the response of various hepatic cells to hepatocellular death and inflammatory signals related to intrahepatic injury pathways or extrahepatic mediators. Inflammatory processes modulate fibrogenesis by activating HSCs and, in turn, drive immune mechanisms via cytokines and chemokines. Increasing evidence also suggests that cellular stress responses contribute to fibrogenesis. Recent data demonstrated that LF can revert even at advanced stages of cirrhosis if the underlying cause is eliminated, which inhibits the inflammatory and profibrogenic cells. However, despite numerous clinical studies on plausible drug candidates, an approved antifibrotic therapy still remains elusive. This state-of-the-art review presents cellular and molecular mechanisms involved in hepatic fibrogenesis and its resolution, as well as comprehensively discusses the drivers linking liver injury to chronic liver inflammation and LF.
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Affiliation(s)
- Hikmet Akkız
- Department of Gastroenterology and Hepatology, University of Bahçeşehir, Beşiktaş, Istanbul 34353, Turkey
| | - Robert K. Gieseler
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr University Bochum, In der Schornau 23–25, 44892 Bochum, Germany; (R.K.G.); (A.C.)
| | - Ali Canbay
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr University Bochum, In der Schornau 23–25, 44892 Bochum, Germany; (R.K.G.); (A.C.)
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23
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Wang J, Lu H, Li Q. Hepatic macrophage niche: a bridge between HBV-mediated metabolic changes with intrahepatic inflammation. Front Immunol 2024; 15:1414594. [PMID: 39091506 PMCID: PMC11291371 DOI: 10.3389/fimmu.2024.1414594] [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: 04/09/2024] [Accepted: 07/02/2024] [Indexed: 08/04/2024] Open
Abstract
Hepatitis B Virus (HBV) is a stealthy and insidious pathogen capable of inducing chronic necro-inflammatory liver disease and hepatocellular carcinoma (HCC), resulting in over one million deaths worldwide per year. The traditional understanding of Chronic Hepatitis B (CHB) progression has focused on the complex interplay among ongoing virus replication, aberrant immune responses, and liver pathogenesis. However, the dynamic progression and crucial factors involved in the transition from HBV infection to immune activation and intrahepatic inflammation remain elusive. Recent insights have illuminated HBV's exploitation of the sodium taurocholate co-transporting polypeptide (NTCP) and manipulation of the cholesterol transport system shared between macrophages and hepatocytes for viral entry. These discoveries deepen our understanding of HBV as a virus that hijacks hepatocyte metabolism. Moreover, hepatic niche macrophages exhibit significant phenotypic and functional diversity, zonal characteristics, and play essential roles, either in maintaining liver homeostasis or contributing to the pathogenesis of chronic liver diseases. Therefore, we underscore recent revelations concerning the importance of hepatic niche macrophages in the context of viral hepatitis. This review particularly emphasizes the significant role of HBV-induced metabolic changes in hepatic macrophages as a key factor in the transition from viral infection to immune activation, ultimately culminating in liver inflammation. These metabolic alterations in hepatic macrophages offer promising targets for therapeutic interventions and serve as valuable early warning indicators, shedding light on the disease progression.
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Affiliation(s)
- Jun Wang
- The Third People’s Hospital of Shenzhen (National Clinical Research Center for Infectious Diseases) and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
- Clinical Research Center, The Fifth People’s Hospital of Wuxi, Jiangnan University, Wuxi, Jiangsu, China
| | - Hongzhou Lu
- The Third People’s Hospital of Shenzhen (National Clinical Research Center for Infectious Diseases) and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Qian Li
- The Third People’s Hospital of Shenzhen (National Clinical Research Center for Infectious Diseases) and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
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24
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Qian M, Zhong J, Lu Z, Zhang W, Weng M, Zhang K, Jin Y. Bibliometric Analysis of TREM2 (2001-2022): Trends, Hotspots and Prospects in Human Disease. Int J Med Sci 2024; 21:1852-1865. [PMID: 39113887 PMCID: PMC11302561 DOI: 10.7150/ijms.96851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/03/2024] [Indexed: 08/10/2024] Open
Abstract
Background: Triggering receptor expressed in myeloid cells 2 (TREM2), a transmembrane receptor, has garnered extensive research attention due to its pivotal role in the diagnosis and treatment of various diseases. Despite the abundance of studies on its function, there is a gap in comprehensive analysis and summarization of the current state of this research field. Methods: Articles and reviews related to TREM2 were retrieved from the Web of Science Core Collection (WOSCC) on October 1, 2023. A bibliometric analysis of TREM2 was conducted using CiteSpace, VOSviewer and Bibliometrix (R package). Results: A total of 1,502 articles, spanning from 2001 to 2022, met the search criteria. The number of publications and citations has increased steadily over the years. The United States and China are the most active countries in TREM2 research, with the University of Washington as the leading research institution. The most influential journal in the field is Neurology of Aging. The predominant research areas include molecular, biology and immunology. Alzheimer's disease, microglia, variants, and inflammation are significant keywords. Emerging directions such as metabolism and tumor microenvironment have recently gained attention in numerous studies. Conclusion: The current study utilizes bibliometric analysis software and visual graphics to intuitively highlight TREM2-related hotspots, trends, and prospects in human disease. Such insights are valuable for scholars seeking a deeper understanding of TREM2-related research progress, enabling a focused approach to its application in human disease.
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Affiliation(s)
- Minyue Qian
- Department of Anesthesiology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jia Zhong
- Department of Anesthesiology and Intensive Care, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhongteng Lu
- Department of Anesthesiology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenyuan Zhang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Hangzhou, China
| | - Mengcao Weng
- Department of Anesthesiology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kai Zhang
- Department of Anesthesiology and Intensive Care, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yue Jin
- Department of Anesthesiology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Hangzhou, China
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25
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Musrati MA, Stijlemans B, Azouz A, Kancheva D, Mesbahi S, Hadadi E, Lebegge E, Ali L, De Vlaminck K, Scheyltjens I, Vandamme N, Zivalj M, Assaf N, Elkrim Y, Ahmidi I, Huart C, Lamkanfi M, Guilliams M, De Baetselier P, Goriely S, Movahedi K, Van Ginderachter JA. Infection history imprints prolonged changes to the epigenome, transcriptome and function of Kupffer cells. J Hepatol 2024:S0168-8278(24)02363-8. [PMID: 39002639 DOI: 10.1016/j.jhep.2024.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND AND AIMS Liver macrophages fulfill various homeostatic functions and represent an essential line of defense against pathogenic insults. However, it remains unclear whether a history of infectious disease in the liver instructs long-term alterations to the liver macrophage compartment. METHODS We utilized a curable model of parasitic infection invoked by the protozoan parasite Trypanosoma brucei brucei to investigate whether infection history can durably reshape hepatic macrophage identity and function. Employing a combination of fate mapping, single cell CITE-sequencing, single nuclei multiome analysis, epigenomic analysis, and functional assays, we studied the alterations to the liver macrophage compartment during and after the resolution of infection. RESULTS We show that T. b. brucei infection alters the composition of liver-resident macrophages, leading to the infiltration of monocytes that differentiate into various infection-associated macrophage populations with divergent transcriptomic profiles. Whereas infection-associated macrophages disappear post-resolution of infection, monocyte-derived macrophages engraft in the liver, assume a Kupffer cell (KC)-like profile and co-exist with embryonic KCs in the long-term. Remarkably, the prior exposure to infection imprinted an altered transcriptional program on post-resolution KCs that was underpinned by an epigenetic remodeling of KC chromatin landscapes and a shift in KC ontogeny, along with transcriptional and epigenetic alterations in their niche cells. This reprogramming altered KC functions and was associated with increased resilience to a subsequent bacterial infection. CONCLUSION Our study demonstrates that a prior exposure to a parasitic infection induces trained immunity in KCs, reshaping their identity and function in the long-term. IMPACT AND IMPLICATIONS Although the liver is frequently affected during infections, and despite housing a major population of resident macrophages known as Kupffer cells (KCs), it is currently unclear whether infections can durably alter KCs and their niche cells. Our study provides a comprehensive investigation into the long-term impact of a prior, cured parasitic infection, unveiling long-lasting ontogenic, epigenetic, transcriptomic and functional changes to KCs as well as KC niche cells, which may contribute to KC remodeling. Our data suggest that infection history may continuously reprogram KCs throughout life with potential implications for subsequent disease susceptibility in the liver, influencing preventive and therapeutic approaches.
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Affiliation(s)
- Mohamed Amer Musrati
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Benoit Stijlemans
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Abdulkader Azouz
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Gosselies, Belgium; ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Daliya Kancheva
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium; Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sarah Mesbahi
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Eva Hadadi
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Els Lebegge
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Leen Ali
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium; Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karen De Vlaminck
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium; Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Isabelle Scheyltjens
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium; Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Niels Vandamme
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, Ghent, Belgium; VIB Single Cell Core, VIB, Ghent-Leuven, Belgium
| | - Maida Zivalj
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Naela Assaf
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Yvon Elkrim
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Ilham Ahmidi
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Camille Huart
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Martin Guilliams
- Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Patrick De Baetselier
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium
| | - Stanislas Goriely
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Gosselies, Belgium; ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Kiavash Movahedi
- Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium.
| | - Jo A Van Ginderachter
- Myeloid Cell Immunology Laboratory, VIB Center for Inflammation Research, Brussels, Belgium; Cellular and Molecular Lab, Brussels Center for Immunology (BCIM), Vrije Universiteit Brussel, Brussles, Belgium.
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26
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Radushev V, Karkossa I, Berg J, von Bergen M, Engelmann B, Rolle-Kampczyk U, Blüher M, Wagner U, Schubert K, Rossol M. Dysregulated cytokine and oxidative response in hyper-glycolytic monocytes in obesity. Front Immunol 2024; 15:1416543. [PMID: 39050851 PMCID: PMC11266186 DOI: 10.3389/fimmu.2024.1416543] [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: 04/12/2024] [Accepted: 06/21/2024] [Indexed: 07/27/2024] Open
Abstract
Introduction Obesity is associated with a plethora of health complications, including increased susceptibility to infections or decreased vaccine efficacy, partly due to dysregulated immune responses. Monocytes play a crucial role in innate immunity, yet their functional alterations in obesity remain poorly understood. Methods Here, we employed proteomic and metabolomic analyses to investigate monocyte characteristics in individuals with overweight, obesity, impaired glucose tolerance (IGT), and type 2 diabetes (T2D), compared to lean donors. Results and discussion Our results revealed distinct molecular signatures in monocytes from individuals with obesity, with significant alterations in pathways related to metabolism, cellular migration, and phagocytosis. Moreover, LPS-induced activation of monocytes unveiled heightened metabolic reprogramming towards glycolysis in subjects with obesity accompanied by dysregulated cytokine responses and elevated oxidative stress. Additionally, monocytes from donors with obesity exhibited increased lipid droplet accumulation. These findings shed light on the immunometabolic dysregulation underlying obesity-associated immune dysfunction, highlighting potential targets for therapeutic intervention.
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Affiliation(s)
- Veselina Radushev
- Division of Rheumatology, Department of Endocrinology, Nephrology, Rheumatology, Leipzig University, Leipzig, Germany
| | - Isabel Karkossa
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Janina Berg
- Molecular Immunology, Faculty of Health Sciences, BTU Cottbus-Senftenberg, Senftenberg, Germany
| | - Martin von Bergen
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
- Institute for Biochemistry, Faculty of Life Sciences, Leipzig University, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Beatrice Engelmann
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Ulrike Rolle-Kampczyk
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
| | - Ulf Wagner
- Division of Rheumatology, Department of Endocrinology, Nephrology, Rheumatology, Leipzig University, Leipzig, Germany
| | - Kristin Schubert
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Manuela Rossol
- Division of Rheumatology, Department of Endocrinology, Nephrology, Rheumatology, Leipzig University, Leipzig, Germany
- Molecular Immunology, Faculty of Health Sciences, BTU Cottbus-Senftenberg, Senftenberg, Germany
- Faculty of Environment and Natural Sciences, BTU Cottbus-Senftenberg, Senftenberg, Germany
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27
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Savulescu-Fiedler I, Mihalcea R, Dragosloveanu S, Scheau C, Baz RO, Caruntu A, Scheau AE, Caruntu C, Benea SN. The Interplay between Obesity and Inflammation. Life (Basel) 2024; 14:856. [PMID: 39063610 PMCID: PMC11277997 DOI: 10.3390/life14070856] [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: 05/28/2024] [Revised: 07/01/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Obesity is an important condition affecting the quality of life of numerous patients and increasing their associated risk for multiple diseases, including tumors and immune-mediated disorders. Inflammation appears to play a major role in the development of obesity and represents a central point for the activity of cellular and humoral components in the adipose tissue. Macrophages play a key role as the main cellular component of the adipose tissue regulating the chronic inflammation and modulating the secretion and differentiation of various pro- and anti-inflammatory cytokines. Inflammation also involves a series of signaling pathways that might represent the focus for new therapies and interventions. Weight loss is essential in decreasing cardiometabolic risks and the degree of associated inflammation; however, the latter can persist for long after the excess weight is lost, and can involve changes in macrophage phenotypes that can ensure the metabolic adjustment. A clear understanding of the pathophysiological processes in the adipose tissue and the interplay between obesity and chronic inflammation can lead to a better understanding of the development of comorbidities and may ensure future targets for the treatment of obesity.
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Affiliation(s)
- Ilinca Savulescu-Fiedler
- Department of Internal Medicine, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Internal Medicine and Cardiology, Coltea Clinical Hospital, 030167 Bucharest, Romania
| | - Razvan Mihalcea
- Department of Internal Medicine and Cardiology, Coltea Clinical Hospital, 030167 Bucharest, Romania
| | - Serban Dragosloveanu
- Department of Orthopaedics, “Foisor” Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 021382 Bucharest, Romania
- Department of Orthopaedics and Traumatology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristian Scheau
- Department of Physiology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (C.C.)
- Department of Radiology and Medical Imaging, “Foisor” Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 030167 Bucharest, Romania
| | - Radu Octavian Baz
- Clinical Laboratory of Radiology and Medical Imaging, “Sf. Apostol Andrei” County Emergency Hospital, 900591 Constanta, Romania
- Department of Radiology and Medical Imaging, Faculty of Medicine, “Ovidius” University, 900527 Constanta, Romania
| | - Ana Caruntu
- Department of Oral and Maxillofacial Surgery, “Carol Davila” Central Military Emergency Hospital, 010825 Bucharest, Romania
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Titu Maiorescu” University, 031593 Bucharest, Romania
| | - Andreea-Elena Scheau
- Department of Radiology and Medical Imaging, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Constantin Caruntu
- Department of Physiology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (C.C.)
- Department of Dermatology, “Prof. N.C. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 011233 Bucharest, Romania
| | - Serban Nicolae Benea
- Department of Infectious Diseases, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- “Prof. Dr. Matei Balș” National Institute for Infectious Diseases, 021105 Bucharest, Romania
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28
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Coulton A, Murai J, Qian D, Thakkar K, Lewis CE, Litchfield K. Using a pan-cancer atlas to investigate tumour associated macrophages as regulators of immunotherapy response. Nat Commun 2024; 15:5665. [PMID: 38969631 PMCID: PMC11226649 DOI: 10.1038/s41467-024-49885-8] [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: 02/27/2023] [Accepted: 06/24/2024] [Indexed: 07/07/2024] Open
Abstract
The paradigm for macrophage characterization has evolved from the simple M1/M2 dichotomy to a more complex model that encompasses the broad spectrum of macrophage phenotypic diversity, due to differences in ontogeny and/or local stimuli. We currently lack an in-depth pan-cancer single cell RNA-seq (scRNAseq) atlas of tumour-associated macrophages (TAMs) that fully captures this complexity. In addition, an increased understanding of macrophage diversity could help to explain the variable responses of cancer patients to immunotherapy. Our atlas includes well established macrophage subsets as well as a number of additional ones. We associate macrophage composition with tumour phenotype and show macrophage subsets can vary between primary and metastatic tumours growing in sites like the liver. We also examine macrophage-T cell functional cross talk and identify two subsets of TAMs associated with T cell activation. Analysis of TAM signatures in a large cohort of immune checkpoint inhibitor-treated patients (CPI1000 + ) identify multiple TAM subsets associated with response, including the presence of a subset of TAMs that upregulate collagen-related genes. Finally, we demonstrate the utility of our data as a resource and reference atlas for mapping of novel macrophage datasets using projection. Overall, these advances represent an important step in both macrophage classification and overcoming resistance to immunotherapies in cancer.
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Affiliation(s)
- Alexander Coulton
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Jun Murai
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Danwen Qian
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Krupa Thakkar
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK
| | - Claire E Lewis
- Department of Oncology and Metabolism, University of Sheffield Medical School, Beech Hill Road, Sheffield, Yorkshire, S10 2RX, UK.
| | - Kevin Litchfield
- The Tumour Immunogenomics and Immunosurveillance (TIGI) Lab, UCL Cancer Institute, London, WC1E 6DD, UK.
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29
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Buras ED, Woo MS, Kaul Verma R, Kondisetti SH, Davis CS, Claflin DR, Converso-Baran K, Michele DE, Brooks SV, Chun TH. Thrombospondin-1 promotes fibro-adipogenic stromal expansion and contractile dysfunction of the diaphragm in obesity. JCI Insight 2024; 9:e175047. [PMID: 38954467 PMCID: PMC11343600 DOI: 10.1172/jci.insight.175047] [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: 08/22/2023] [Accepted: 06/27/2024] [Indexed: 07/04/2024] Open
Abstract
Pulmonary disorders affect 40%-80% of individuals with obesity. Respiratory muscle dysfunction is linked to these conditions; however, its pathophysiology remains largely undefined. Mice subjected to diet-induced obesity (DIO) develop diaphragm muscle weakness. Increased intradiaphragmatic adiposity and extracellular matrix (ECM) content correlate with reductions in contractile force. Thrombospondin-1 (THBS1) is an obesity-associated matricellular protein linked with muscular damage in genetic myopathies. THBS1 induces proliferation of fibro-adipogenic progenitors (FAPs) - mesenchymal cells that differentiate into adipocytes and fibroblasts. We hypothesized that THBS1 drives FAP-mediated diaphragm remodeling and contractile dysfunction in DIO. We tested this by comparing the effects of dietary challenge on diaphragms of wild-type (WT) and Thbs1-knockout (Thbs1-/-) mice. Bulk and single-cell transcriptomics demonstrated DIO-induced stromal expansion in WT diaphragms. Diaphragm FAPs displayed upregulation of ECM and TGF-β-related expression signatures and augmentation of a Thy1-expressing subpopulation previously linked to type 2 diabetes. Despite similar weight gain, Thbs1-/- mice were protected from these transcriptomic changes and from obesity-induced increases in diaphragm adiposity and ECM deposition. Unlike WT controls, Thbs1-/- diaphragms maintained normal contractile force and motion after DIO challenge. THBS1 is therefore a necessary mediator of diaphragm stromal remodeling and contractile dysfunction in overnutrition and a potential therapeutic target in obesity-associated respiratory dysfunction.
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Affiliation(s)
- Eric D. Buras
- Division of Metabolism, Endocrinology and Diabetes (MEND), Department of Internal Medicine
| | - Moon-Sook Woo
- Division of Metabolism, Endocrinology and Diabetes (MEND), Department of Internal Medicine
| | - Romil Kaul Verma
- Division of Metabolism, Endocrinology and Diabetes (MEND), Department of Internal Medicine
| | | | | | - Dennis R. Claflin
- Department of Biomedical Engineering
- Department of Surgery, Section of Plastic Surgery
| | | | | | | | - Tae-Hwa Chun
- Division of Metabolism, Endocrinology and Diabetes (MEND), Department of Internal Medicine
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA
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30
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Horn P, Tacke F. Metabolic reprogramming in liver fibrosis. Cell Metab 2024; 36:1439-1455. [PMID: 38823393 DOI: 10.1016/j.cmet.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 06/03/2024]
Abstract
Chronic liver diseases, primarily metabolic dysfunction-associated steatotic liver disease (MASLD), harmful use of alcohol, or viral hepatitis, may result in liver fibrosis, cirrhosis, and cancer. Hepatic fibrogenesis is a complex process with interactions between different resident and non-resident heterogeneous liver cell populations, ultimately leading to deposition of extracellular matrix and organ failure. Shifts in cell phenotypes and functions involve pronounced transcriptional and protein synthesis changes that require metabolic adaptations in cellular substrate metabolism, including glucose and lipid metabolism, resembling changes associated with the Warburg effect in cancer cells. Cell activation and metabolic changes are regulated by metabolic stress responses, including the unfolded protein response, endoplasmic reticulum stress, autophagy, ferroptosis, and nuclear receptor signaling. These metabolic adaptations are crucial for inflammatory and fibrogenic activation of macrophages, lymphoid cells, and hepatic stellate cells. Modulation of these pathways, therefore, offers opportunities for novel therapeutic approaches to halt or even reverse liver fibrosis progression.
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Affiliation(s)
- Paul Horn
- Department of Hepatology and Gastroenterology, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Digital Clinician Scientist Program, Berlin, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany.
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31
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Graelmann FJ, Gondorf F, Majlesain Y, Niemann B, Klepac K, Gosejacob D, Gottschalk M, Mayer M, Iriady I, Hatzfeld P, Lindenberg SK, Wunderling K, Thiele C, Abdullah Z, He W, Hiller K, Händler K, Beyer MD, Ulas T, Pfeifer A, Esser C, Weighardt H, Förster I, Reverte-Salisa L. Differential cell type-specific function of the aryl hydrocarbon receptor and its repressor in diet-induced obesity and fibrosis. Mol Metab 2024; 85:101963. [PMID: 38821174 PMCID: PMC11214421 DOI: 10.1016/j.molmet.2024.101963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/02/2024] [Accepted: 05/25/2024] [Indexed: 06/02/2024] Open
Abstract
OBJECTIVE The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor regulating xenobiotic responses as well as physiological metabolism. Dietary AhR ligands activate the AhR signaling axis, whereas AhR activation is negatively regulated by the AhR repressor (AhRR). While AhR-deficient mice are known to be resistant to diet-induced obesity (DIO), the influence of the AhRR on DIO has not been assessed so far. METHODS In this study, we analyzed AhRR-/- mice and mice with a conditional deletion of either AhRR or AhR in myeloid cells under conditions of DIO and after supplementation of dietary AhR ligands. Moreover, macrophage metabolism was assessed using Seahorse Mito Stress Test and ROS assays as well as transcriptomic analysis. RESULTS We demonstrate that global AhRR deficiency leads to a robust, but not as profound protection from DIO and hepatosteatosis as AhR deficiency. Under conditions of DIO, AhRR-/- mice did not accumulate TCA cycle intermediates in the circulation in contrast to wild-type (WT) mice, indicating protection from metabolic dysfunction. This effect could be mimicked by dietary supplementation of AhR ligands in WT mice. Because of the predominant expression of the AhRR in myeloid cells, AhRR-deficient macrophages were analyzed for changes in metabolism and showed major metabolic alterations regarding oxidative phosphorylation and mitochondrial activity. Unbiased transcriptomic analysis revealed increased expression of genes involved in de novo lipogenesis and mitochondrial biogenesis. Mice with a genetic deficiency of the AhRR in myeloid cells did not show alterations in weight gain after high fat diet (HFD) but demonstrated ameliorated liver damage compared to control mice. Further, deficiency of the AhR in myeloid cells also did not affect weight gain but led to enhanced liver damage and adipose tissue fibrosis compared to controls. CONCLUSIONS AhRR-deficient mice are resistant to diet-induced metabolic syndrome. Although conditional ablation of either the AhR or AhRR in myeloid cells did not recapitulate the phenotype of the global knockout, our findings suggest that enhanced AhR signaling in myeloid cells deficient for AhRR protects from diet-induced liver damage and fibrosis, whereas myeloid cell-specific AhR deficiency is detrimental.
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Affiliation(s)
- Frederike J Graelmann
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Fabian Gondorf
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Yasmin Majlesain
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Birte Niemann
- Institute of Pharmacology and Toxicology, University Hospital Bonn, University of Bonn, Germany
| | - Katarina Klepac
- Institute of Pharmacology and Toxicology, University Hospital Bonn, University of Bonn, Germany
| | - Dominic Gosejacob
- Institute of Pharmacology and Toxicology, University Hospital Bonn, University of Bonn, Germany
| | - Marlene Gottschalk
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Michelle Mayer
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Irina Iriady
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Philip Hatzfeld
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Sophie K Lindenberg
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Klaus Wunderling
- Biochemistry & Cell Biology of Lipids, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Christoph Thiele
- Biochemistry & Cell Biology of Lipids, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Zeinab Abdullah
- Institute of Molecular Medicine and Experimental Immunology, University Hospital Bonn, University of Bonn, Germany
| | - Wei He
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Karsten Hiller
- Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Kristian Händler
- PRECISE Platform for Single cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn and West German Genome Center, Bonn, Germany; Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany; Institute of Human Genetics, Universitätsklinikum Schleswig-Holstein, University of Lübeck and University of Kiel, 23562 Lübeck, Germany
| | - Marc D Beyer
- PRECISE Platform for Single cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn and West German Genome Center, Bonn, Germany; Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, Germany
| | - Thomas Ulas
- PRECISE Platform for Single cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn and West German Genome Center, Bonn, Germany; Genomics and Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany
| | - Alexander Pfeifer
- Institute of Pharmacology and Toxicology, University Hospital Bonn, University of Bonn, Germany
| | - Charlotte Esser
- IUF-Leibniz Research Institute for Environmental Medicine gGmbH, Düsseldorf, Germany
| | - Heike Weighardt
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany; IUF-Leibniz Research Institute for Environmental Medicine gGmbH, Düsseldorf, Germany
| | - Irmgard Förster
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany.
| | - Laia Reverte-Salisa
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Germany.
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Guillot A, Tacke F. Liver macrophages revisited: The expanding universe of versatile responses in a spatiotemporal context. Hepatol Commun 2024; 8:e0491. [PMID: 38967563 PMCID: PMC11227356 DOI: 10.1097/hc9.0000000000000491] [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: 02/15/2024] [Accepted: 05/23/2024] [Indexed: 07/06/2024] Open
Abstract
The liver is a vital organ that continuously adapts to a wide and dynamic diversity of self-antigens and xenobiotics. This involves the active contribution of immune cells, particularly by the liver-resident macrophages, the Kupffer cells (KCs), which exert a variety of central functions in liver homeostasis and disease. As such, KCs interact with their microenvironment to shape the hepatic cellular landscape, control gut-derived signal integration, and modulate metabolism. On injury, the rapid recruitment of bone marrow monocyte-derived macrophages alters this status quo and, when unrestrained, drastically compromises liver homeostasis, immune surveillance, and tissue organization. Several factors determine the functional roles of liver macrophages in these processes, such as their ontogeny, activation/polarization profile and, importantly, spatial distribution within the liver. Loss of tolerance and adaptability of the hepatic immune environment may result in persistent inflammation, hepatic fibrosis, cirrhosis, and a tumorigenic niche promoting liver cancer. In this review, we aim at providing the most recent breakthroughs in our understanding of liver macrophage biology, particularly their diversity and adaptability in the hepatic spatiotemporal context, as well as on potential therapeutic interventions that may hold the key to tackling remaining clinical challenges of varying etiologies in hepatology.
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Zhu G, Cao L, Wu J, Xu M, Zhang Y, Wu M, Li J. Co-morbid intersections of cancer and cardiovascular disease and targets for natural drug action: Reprogramming of lipid metabolism. Biomed Pharmacother 2024; 176:116875. [PMID: 38850662 DOI: 10.1016/j.biopha.2024.116875] [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: 04/01/2024] [Revised: 05/24/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024] Open
Abstract
Cancer and cardiovascular diseases are major contributors to global morbidity and mortality, and their seemingly separate pathologies are intricately intertwined. In the context of cancer, the cardiovascular disease encompasses not only the side effects arising from anti-tumor treatments but also the metabolic shifts induced by oncological conditions. A growing body of research indicates that lipid metabolic reprogramming serves as a distinctive hallmark of tumors. Furthermore, anomalies in lipid metabolism play a significant role in the development of cardiovascular disease. This study delves into the cardiac implications of lipid metabolic reprogramming within the cancer context, closely examining abnormalities in lipid metabolism present in tumors, cardiac tissue, and immune cells within the microenvironment. Additionally, we examined risk factors such as obesity and anti-tumor therapy. Despite progress, a gap remains in the availability of drugs targeting lipid metabolism modulation for treating tumors and mitigating cardiac risk, with limited advancement seen in prior studies. Here, we present a review of previous research on natural drugs that exhibit both shared and distinct therapeutic effects on tumors and cardiac health by modulating lipid metabolism. Our aim is to provide insights for potential drug development.
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Affiliation(s)
- Guanghui Zhu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Luchang Cao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate School, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Jingyuan Wu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Manman Xu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ying Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Min Wu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Jie Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
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Ertel MV, da Silva ABA, de Sousa DF, Dos Santos CJ, da Silva TM, da Silva-Sales MFM, de Oliveira Matos A, Sales-Campos H. Who is who within the universe of TREM-like transcripts (TREML)? Life Sci 2024; 348:122696. [PMID: 38710279 DOI: 10.1016/j.lfs.2024.122696] [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] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
The Triggering Receptor Expressed on Myeloid Cells (TREM) family of receptors plays a crucial role in the immune response across various species. Particularly, TREM-1 and TREM-2 have been extensively studied, both in terms of their applications and their expression sites and signaling pathways. However, the same is not observed for the other family members collectively known as TREM-like-transcripts (TREML). The TREML family consists of eight receptors, with TREML1-5 identified in humans and mice, TREML-6 exclusive found in mice, TREML-7 in dogs and horses, and TREML-8 in rabbits and opossums. Despite the limited data available on the TREML members, they have been implicated in different immune and non-immune activities, which have been proposed to display both pro and anti-inflammatory activities, and to influence fundamental biological processes such as coagulation, bone and neurological development. In this review, we have compiled available information regarding the already discovered members of the family and provided foundational framework for understanding the function, localization, and therapeutic potential of all TREML members. Additionally, we hope that this review may shed light on this family of receptors, whose underlying mechanisms are still awaiting elucidation, while emphasizing the need for future studies to explore their functions and potential therapeutic application.
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Affiliation(s)
- Márcia Verônica Ertel
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
| | | | - Daniel Francisco de Sousa
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
| | - Cairo José Dos Santos
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
| | - Tatiane Mendonça da Silva
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
| | | | - Amanda de Oliveira Matos
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
| | - Helioswilton Sales-Campos
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
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35
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Lambooij JM, Tak T, Zaldumbide A, Guigas B. OMIP-104: A 30-color spectral flow cytometry panel for comprehensive analysis of immune cell composition and macrophage subsets in mouse metabolic organs. Cytometry A 2024; 105:493-500. [PMID: 38651815 DOI: 10.1002/cyto.a.24845] [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: 12/23/2023] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
Obesity-induced chronic low-grade inflammation, also known as metaflammation, results from alterations of the immune response in metabolic organs and contributes to the development of fatty liver diseases and type 2 diabetes. The diversity of tissue-resident leukocytes involved in these metabolic dysfunctions warrants an in-depth immunophenotyping in order to elucidate disease etiology. Here, we present a 30-color, full spectrum flow cytometry panel, designed to (i) identify the major innate and adaptive immune cell subsets in murine liver and white adipose tissues and (ii) discriminate various tissue-specific myeloid subsets known to contribute to the development of metabolic dysfunctions. This panel notably allows for distinguishing embryonically-derived liver-resident Kupffer cells from newly recruited monocyte-derived macrophages and KCs. Furthermore, several adipose tissue macrophage (ATM) subsets, including perivascular macrophages, lipid-associated macrophages, and pro-inflammatory CD11c+ ATMs, can also be identified. Finally, the panel includes cell-surface markers that have been associated with metabolic activation of different macrophage and dendritic cell subsets. Altogether, our spectral flow cytometry panel allows for an extensive immunophenotyping of murine metabolic tissues, with a particular focus on metabolically-relevant myeloid cell subsets, and can easily be adjusted to include various new markers if needed.
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Affiliation(s)
- Joost M Lambooij
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tamar Tak
- Flow Cytometry Core Facility, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnaud Zaldumbide
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Guigas
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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36
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Randall TD, Meza-Perez S. Immunity in adipose tissues: Cutting through the fat. Immunol Rev 2024; 324:4-10. [PMID: 38733141 PMCID: PMC11262970 DOI: 10.1111/imr.13344] [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: 05/13/2024]
Abstract
Well known functions of adipose tissue include energy storage, regulation of thermogenesis, and glucose homeostasis-each of which are associated with the metabolic functions of fat. However, adipose tissues also have important immune functions. In this issue of Immunological Reviews, we present a series of articles that highlight the immune functions of adipose tissue, including the roles of specialized adipose-resident immune cells and fat-associated lymphoid structures. Importantly, immune cell functions in adipose tissues are often linked to the metabolic functions of adipocytes and vice versa. These reciprocal interactions and how they influence both immune and metabolic functions will be discussed in each article. In the first article, Wang et al.,11 discuss adipose-associated macrophages and how obesity and metabolism impact their phenotype and function. Several articles in this issue discuss T cells as either contributors to, or regulators of, inflammatory responses in adipose tissues. Valentine and Nikolajczyk12 provide insights into the role of T cells in obesity-associated inflammation and their contribution to metabolic dysfunction, whereas an article from Kallies and Vasanthakumar13 and another from Elkins and Li14 describe adipose-associated Tregs and how they help prevent inflammation and maintain metabolic homeostasis. Articles from Okabe35 as well as from Daley and Benezech15 discuss the structure and function of fat-associated lymphoid clusters (FALCs) that are prevalent in some adipose tissues and support local immune responses to pathogens, gut-derived microbes and fat-associated antigens. Finally, an article from Meher and McNamara16 describes how innate-like B1 cells in adipose tissues regulate cardiometabolic disease. Importantly, these articles highlight the physical and functional attributes of adipose tissues that are different between mice and humans, the metabolic and immune differences between various adipose depots in the body and the differences in immune cells, adipose tissues and metabolic functions between the sexes. At the end of this preface, we highlight how these differences are critically important for our understanding of anti-tumor immunity to cancers that metastasize to a specific example of visceral adipose tissue, the omentum. Together, these articles identify some unanswered mechanistic questions that will be important to address for a better understanding of immunity in adipose tissues.
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Affiliation(s)
- Troy D. Randall
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Selene Meza-Perez
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Chang X, Zheng Y, Xu K. Single-Cell RNA Sequencing: Technological Progress and Biomedical Application in Cancer Research. Mol Biotechnol 2024; 66:1497-1519. [PMID: 37322261 PMCID: PMC11217094 DOI: 10.1007/s12033-023-00777-0] [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: 03/09/2023] [Accepted: 05/23/2023] [Indexed: 06/17/2023]
Abstract
Single-cell RNA-seq (scRNA-seq) is a revolutionary technology that allows for the genomic investigation of individual cells in a population, allowing for the discovery of unusual cells associated with cancer and metastasis. ScRNA-seq has been used to discover different types of cancers with poor prognosis and medication resistance such as lung cancer, breast cancer, ovarian cancer, and gastric cancer. Besides, scRNA-seq is a promising method that helps us comprehend the biological features and dynamics of cell development, as well as other disorders. This review gives a concise summary of current scRNA-seq technology. We also explain the main technological steps involved in implementing the technology. We highlight the present applications of scRNA-seq in cancer research, including tumor heterogeneity analysis in lung cancer, breast cancer, and ovarian cancer. In addition, this review elucidates potential applications of scRNA-seq in lineage tracing, personalized medicine, illness prediction, and disease diagnosis, which reveals that scRNA-seq facilitates these events by producing genetic variations on the single-cell level.
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Affiliation(s)
- Xu Chang
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Yunxi Zheng
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Kai Xu
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China.
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38
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Wang Q, Hartig SM, Ballantyne CM, Wu H. The multifaceted life of macrophages in white adipose tissue: Immune shift couples with metabolic switch. Immunol Rev 2024; 324:11-24. [PMID: 38683173 PMCID: PMC11262992 DOI: 10.1111/imr.13338] [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: 05/01/2024]
Abstract
White adipose tissue (WAT) is a vital endocrine organ that regulates energy balance and metabolic homeostasis. In addition to fat cells, WAT harbors macrophages with distinct phenotypes that play crucial roles in immunity and metabolism. Nutrient demands cause macrophages to accumulate in WAT niches, where they remodel the microenvironment and produce beneficial or detrimental effects on systemic metabolism. Given the abundance of macrophages in WAT, this review summarizes the heterogeneity of WAT macrophages in physiological and pathological conditions, including their alterations in quantity, phenotypes, characteristics, and functions during WAT growth and development, as well as healthy or unhealthy expansion. We will discuss the interactions of macrophages with other cell partners in WAT including adipose stem cells, adipocytes, and T cells in the context of various microenvironment niches in lean or obese condition. Finally, we highlight how adipose tissue macrophages merge immunity and metabolic changes to govern energy balance for the organism.
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Affiliation(s)
- Qun Wang
- Key Laboratory of Infection and Immunity of Shandong Province, Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Sean M. Hartig
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA 77030
| | | | - Huaizhu Wu
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA 77030
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39
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De Carlo C, Rosman-Nathanson R, Durante B, Akpinar R, Soldani C, Franceschini B, Lasagni S, Viganò L, Procopio F, Costa G, Torzilli G, Lleo A, Terracciano LM, Villa E, Rimassa L, Di Tommaso L. The tumor microenvironment of VETC+ hepatocellular carcinoma is enriched of immunosuppressive TAMs spatially close to endothelial cells. Dig Liver Dis 2024:S1590-8658(24)00826-0. [PMID: 38945759 DOI: 10.1016/j.dld.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND AND AIM VETC (vessel that encapsulate tumor cluster) is a peculiar vascular phenotype observed in hepatocellular carcinoma (HCC), associated with distant metastases and poor outcome. VETC has been linked to the Tie2/Ang2 axis and is characterized by lymphocytes poor (cold) tumor microenvironment (TME). In this setting the role of Tumor Associated Macrophages (TAMs) has never been explored. Aim of the study is to investigate the presence and features of TAMs in VETC+ HCC and the possible interplay between TAMs and endothelial cells (ECs). METHODS The series under study included 42 HCC. Once separated according to the VETC phenotype (21 VETC+; 21 VETC-) we stained consecutive slides with immunohistochemistry for CD68, CD163 and Tie2. Slides were then scanned and QuPath used to quantify morphological features. RESULTS VETC+ cases were significantly (p < 0.001) enriched with large, lipid rich CD163+ TAMs (M2 oriented) that were spatially close to ECs; HCC cells significantly (p: 0.002) overexpressed Tie2 with a polarization toward ECs. CONCLUSIONS The pro-metastatic attitude of VETC is sustained by a strict morphological relationship between immunosuppressive M2-TAMs, ECs and Tie2-expressing HCC cells.
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Affiliation(s)
- Camilla De Carlo
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Pathology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | | | - Barbara Durante
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Pathology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Reha Akpinar
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | - Cristiana Soldani
- Laboratory of Hepatobiliary Immunopathology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Barbara Franceschini
- Laboratory of Hepatobiliary Immunopathology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Simone Lasagni
- Chimomo Department, Gastroenterology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Luca Viganò
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Hepatobiliary Unit, Department of Minimally Invasive General & Oncologic Surgery, Humanitas Gavazzeni University Hospital, Bergamo, Italy
| | - Fabio Procopio
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Division of Hepatobiliary and General Surgery, Department of Surgery, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Guido Costa
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Division of Hepatobiliary and General Surgery, Department of Surgery, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Guido Torzilli
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Division of Hepatobiliary and General Surgery, Department of Surgery, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Ana Lleo
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Division of Internal Medicine and Hepatology, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Luigi Maria Terracciano
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Pathology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Erica Villa
- Chimomo Department, Gastroenterology Unit, University of Modena and Reggio Emilia, Modena, Italy; UC Gastroenterologia, Dipartimento di Specialità Mediche, Azienda Ospedaliera Universitaria di Modena, Modena, Italy
| | - Lorenza Rimassa
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Medical Oncology and Hematology Unit, Humanitas Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Luca Di Tommaso
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Pathology, IRCCS Humanitas Research Hospital, Rozzano, Italy.
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40
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Wang Y, Chen W, Qiao S, Zou H, Yu XJ, Yang Y, Li Z, Wang J, Chen MS, Xu J, Zheng L. Lipid droplet accumulation mediates macrophage survival and Treg recruitment via the CCL20/CCR6 axis in human hepatocellular carcinoma. Cell Mol Immunol 2024:10.1038/s41423-024-01199-x. [PMID: 38942796 DOI: 10.1038/s41423-024-01199-x] [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: 01/24/2024] [Accepted: 06/17/2024] [Indexed: 06/30/2024] Open
Abstract
Metabolic changes play a crucial role in determining the status and function of macrophages, but how lipid reprogramming in macrophages contributes to tumor progression is not yet fully understood. Here, we investigated the phenotype, contribution, and regulatory mechanisms of lipid droplet (LD)-laden macrophages (LLMs) in hepatocellular carcinoma (HCC). Enriched LLMs were found in tumor tissues and were associated with disease progression in HCC patients. The LLMs displayed immunosuppressive phenotypes (with extensive expression of TREM2, PD-L1, CD206, and CD163) and attenuated the antitumor activities of CD8+ T cells. Mechanistically, tumor-induced reshuffling of cellular lipids and TNFα-mediated uptake of tumoral fatty acids contribute to the generation of triglycerides and LDs in macrophages. LDs prolong LLM survival and promote CCL20 secretion, which further recruits CCR6+ Tregs to HCC tissue. Inhibiting LLM formation by targeting DGAT1 and DGAT2, which catalyze the synthesis of triglycerides, significantly reduced Treg recruitment, and delayed tumor growth in a mouse hepatic tumor model. Our results reveal the suppressive phenotypes and mechanisms of LLM enrichment in HCC and suggest the therapeutic potential of targeting LLMs for HCC patients.
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Affiliation(s)
- Yongchun Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
- Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Weibai Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
- Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Shuang Qiao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
| | - Hao Zou
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
| | - Xing-Juan Yu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
| | - Yanyan Yang
- Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Zhixiong Li
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
| | - Junfeng Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
| | - Min-Shan Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China
- Department of Liver Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Jing Xu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China.
| | - Limin Zheng
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, PR China.
- Key Laboratory of Gene Function and Regulation of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China.
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41
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Paneru BD, Chini J, McCright SJ, DeMarco N, Miller J, Joannas LD, Henao-Mejia J, Titchenell PM, Merrick DM, Lim HW, Lazar MA, Hill DA. Myeloid-derived miR-6236 potentiates adipocyte insulin signaling and prevents hyperglycemia during obesity. Nat Commun 2024; 15:5394. [PMID: 38918428 PMCID: PMC11199588 DOI: 10.1038/s41467-024-49632-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: 03/22/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Adipose tissue macrophages (ATMs) influence obesity-associated metabolic dysfunction, but the mechanisms by which they do so are not well understood. We show that miR-6236 is a bona fide miRNA that is secreted by ATMs during obesity. Global or myeloid cell-specific deletion of miR-6236 aggravates obesity-associated adipose tissue insulin resistance, hyperglycemia, hyperinsulinemia, and hyperlipidemia. miR-6236 augments adipocyte insulin sensitivity by inhibiting translation of negative regulators of insulin signaling, including PTEN. The human genome harbors a miR-6236 homolog that is highly expressed in the serum and adipose tissue of obese people. hsa-MIR-6236 expression negatively correlates with hyperglycemia and glucose intolerance, and positively correlates with insulin sensitivity. Together, our findings establish miR-6236 as an ATM-secreted miRNA that potentiates adipocyte insulin signaling and protects against metabolic dysfunction during obesity.
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Affiliation(s)
- Bam D Paneru
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Julia Chini
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Medical Scientist Training Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Sam J McCright
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Medical Scientist Training Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Nicole DeMarco
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jessica Miller
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Leonel D Joannas
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Jorge Henao-Mejia
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Paul M Titchenell
- Department of Physiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - David M Merrick
- Department of Medicine, Division of Endocrinology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Hee-Woong Lim
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Mitchell A Lazar
- Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Endocrinology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - David A Hill
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Institute for Immunology and Immune Health, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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Subramanian A, Vernon KA, Zhou Y, Marshall JL, Alimova M, Arevalo C, Zhang F, Slyper M, Waldman J, Montesinos MS, Dionne D, Nguyen LT, Cuoco MS, Dubinsky D, Purnell J, Keller K, Sturner SH, Grinkevich E, Ghoshal A, Kotek A, Trivioli G, Richoz N, Humphrey MB, Darby IG, Miller SJ, Xu Y, Weins A, Chloe-Villani A, Chang SL, Kretzler M, Rosenblatt-Rosen O, Shaw JL, Zimmerman KA, Clatworthy MR, Regev A, Greka A. Protective role for kidney TREM2 high macrophages in obesity- and diabetes-induced kidney injury. Cell Rep 2024; 43:114253. [PMID: 38781074 PMCID: PMC11249042 DOI: 10.1016/j.celrep.2024.114253] [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: 10/31/2023] [Revised: 03/05/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Diabetic kidney disease (DKD), the most common cause of kidney failure, is a frequent complication of diabetes and obesity, and yet to date, treatments to halt its progression are lacking. We analyze kidney single-cell transcriptomic profiles from DKD patients and two DKD mouse models at multiple time points along disease progression-high-fat diet (HFD)-fed mice aged to 90-100 weeks and BTBR ob/ob mice (a genetic model)-and report an expanding population of macrophages with high expression of triggering receptor expressed on myeloid cells 2 (TREM2) in HFD-fed mice. TREM2high macrophages are enriched in obese and diabetic patients, in contrast to hypertensive patients or healthy controls in an independent validation cohort. Trem2 knockout mice on an HFD have worsening kidney filter damage and increased tubular epithelial cell injury, all signs of worsening DKD. Together, our studies suggest that strategies to enhance kidney TREM2high macrophages may provide therapeutic benefits for DKD.
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Affiliation(s)
- Ayshwarya Subramanian
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | | | - Yiming Zhou
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Jamie L Marshall
- Broad Institute of MIT and Harvard, Cambridge, MA, USA; Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Maria Alimova
- Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Carlos Arevalo
- Broad Institute of MIT and Harvard, Cambridge, MA, USA; Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Fan Zhang
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Michal Slyper
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Julia Waldman
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | | | - Lan T Nguyen
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | - Dan Dubinsky
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jason Purnell
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Keith Keller
- Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | - Elizabeth Grinkevich
- Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Ayan Ghoshal
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Amanda Kotek
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Giorgio Trivioli
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, UK; Nephrology Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Nathan Richoz
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, UK
| | - Mary B Humphrey
- Department of Internal Medicine, Division of Nephrology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Isabella G Darby
- Department of Internal Medicine, Division of Nephrology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sarah J Miller
- Department of Internal Medicine, Division of Nephrology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Yingping Xu
- Institute of Dermatology and Venereology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Astrid Weins
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Steven L Chang
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, MA, USA; Division of Urology, Brigham and Women's Hospital, Boston, MA, USA
| | - Matthias Kretzler
- Internal Medicine, Department of Nephrology, University of Michigan, Ann Arbor, MI, USA
| | | | - Jillian L Shaw
- Broad Institute of MIT and Harvard, Cambridge, MA, USA; Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Kurt A Zimmerman
- Department of Internal Medicine, Division of Nephrology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Menna R Clatworthy
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, UK; Cellular Genetics, Wellcome Sanger Institute, Hinxton, UK; NIHR Cambridge Biomedical Research Center, Cambridge, UK; Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Cambridge, UK
| | - Aviv Regev
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Anna Greka
- Broad Institute of MIT and Harvard, Cambridge, MA, USA; Kidney Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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43
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Jiang J, Hiron TK, Agbaedeng TA, Malhotra Y, Drydale E, Bancroft J, Ng E, Reschen ME, Davison LJ, O’Callaghan CA. A Novel Macrophage Subpopulation Conveys Increased Genetic Risk of Coronary Artery Disease. Circ Res 2024; 135:6-25. [PMID: 38747151 PMCID: PMC11191562 DOI: 10.1161/circresaha.123.324172] [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: 12/21/2023] [Revised: 04/26/2024] [Accepted: 05/01/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Coronary artery disease (CAD), the leading cause of death worldwide, is influenced by both environmental and genetic factors. Although over 250 genetic risk loci have been identified through genome-wide association studies, the specific causal variants and their regulatory mechanisms are still largely unknown, particularly in disease-relevant cell types such as macrophages. METHODS We utilized single-cell RNA-seq and single-cell multiomics approaches in primary human monocyte-derived macrophages to explore the transcriptional regulatory network involved in a critical pathogenic event of coronary atherosclerosis-the formation of lipid-laden foam cells. The relative genetic contribution to CAD was assessed by partitioning disease heritability across different macrophage subpopulations. Meta-analysis of single-cell RNA-seq data sets from 38 human atherosclerotic samples was conducted to provide high-resolution cross-referencing to macrophage subpopulations in vivo. RESULTS We identified 18 782 cis-regulatory elements by jointly profiling the gene expression and chromatin accessibility of >5000 macrophages. Integration with CAD genome-wide association study data prioritized 121 CAD-related genetic variants and 56 candidate causal genes. We showed that CAD heritability was not uniformly distributed and was particularly enriched in the gene programs of a novel CD52-hi lipid-handling macrophage subpopulation. These CD52-hi macrophages displayed significantly less lipoprotein accumulation and were also found in human atherosclerotic plaques. We investigated the cis-regulatory effect of a risk variant rs10488763 on FDX1, implicating the recruitment of AP-1 and C/EBP-β in the causal mechanisms at this locus. CONCLUSIONS Our results provide genetic evidence of the divergent roles of macrophage subsets in atherogenesis and highlight lipid-handling macrophages as a key subpopulation through which genetic variants operate to influence disease. These findings provide an unbiased framework for functional fine-mapping of genome-wide association study results using single-cell multiomics and offer new insights into the genotype-environment interactions underlying atherosclerotic disease.
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Affiliation(s)
- Jiahao Jiang
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - Thomas K. Hiron
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - Thomas A. Agbaedeng
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - Yashaswat Malhotra
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - Edward Drydale
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - James Bancroft
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
| | - Esther Ng
- Nuffield Department of Orthopaedics, Kennedy Institute of Rheumatology, Rheumatology and Musculoskeletal Sciences (E.N.), University of Oxford, United Kingdom
| | - Michael E. Reschen
- Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, United Kingdom (M.E.R.)
| | - Lucy J. Davison
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, United Kingdom (L.J.D.)
| | - Chris A. O’Callaghan
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics (J.J., T.K.H., T.A.A., Y.M., E.D., J.B., L.J.D., C.A.O.), University of Oxford, United Kingdom
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44
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Xu C, Wu J, Ye J, Si Y, Zhang J, Wu B, Pan L, Fu J, Ren Q, Xie S, Tang B, Xiao Y, Hong T. Multiomics integration-based immunological characterizations of adamantinomatous craniopharyngioma in relation to keratinization. Cell Death Dis 2024; 15:439. [PMID: 38906852 PMCID: PMC11192745 DOI: 10.1038/s41419-024-06840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024]
Abstract
Although adamantinomatous craniopharyngioma (ACP) is a tumour with low histological malignancy, there are very few therapeutic options other than surgery. ACP has high histological complexity, and the unique features of the immunological microenvironment within ACP remain elusive. Further elucidation of the tumour microenvironment is particularly important to expand our knowledge of potential therapeutic targets. Here, we performed integrative analysis of 58,081 nuclei through single-nucleus RNA sequencing and spatial transcriptomics on ACP specimens to characterize the features and intercellular network within the microenvironment. The ACP environment is highly immunosuppressive with low levels of T-cell infiltration/cytotoxicity. Moreover, tumour-associated macrophages (TAMs), which originate from distinct sources, highly infiltrate the microenvironment. Using spatial transcriptomic data, we observed one kind of non-microglial derived TAM that highly expressed GPNMB close to the terminally differentiated epithelial cell characterized by RHCG, and this colocalization was verified by asmFISH. We also found the positive correlation of infiltration between these two cell types in datasets with larger cohort. According to intercellular communication analysis, we report a regulatory network that could facilitate the keratinization of RHCG+ epithelial cells, eventually causing tumour progression. Our findings provide a comprehensive analysis of the ACP immune microenvironment and reveal a potential therapeutic strategy base on interfering with these two types of cells.
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Affiliation(s)
- Chunming Xu
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jie Wu
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jiye Ye
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yuancheng Si
- Department of Mathematics, University of Manchester, Manchester, UK
- The School of Economics, Fudan University, Shanghai, China
| | - Jinshi Zhang
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Bowen Wu
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Laisheng Pan
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jun Fu
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Quan Ren
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Shenhao Xie
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Bin Tang
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yingqun Xiao
- Department of Pathology, Affiliated Infectious Disease Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Tao Hong
- Jiangxi Key Laboratory of Neurological Diseases, Department of Neurosurgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China.
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Bharadwaj S, Groza Y, Mierzwicka JM, Malý P. Current understanding on TREM-2 molecular biology and physiopathological functions. Int Immunopharmacol 2024; 134:112042. [PMID: 38703564 DOI: 10.1016/j.intimp.2024.112042] [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: 02/08/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 05/06/2024]
Abstract
Triggering receptor expressed on myeloid cells 2 (TREM-2), a glycosylated receptor belonging to the immunoglobin superfamily and especially expressed in the myeloid cell lineage, is frequently explained as a reminiscent receptor for both adaptive and innate immunity regulation. TREM-2 is also acknowledged to influence NK cell differentiation via the PI3K and PLCγ signaling pathways, as well as the partial activation or direct inhibition of T cells. Additionally, TREM-2 overexpression is substantially linked to cell-specific functions, such as enhanced phagocytosis, reduced toll-like receptor (TLR)-mediated inflammatory cytokine production, increased transcription of anti-inflammatory cytokines, and reshaped T cell function. Whereas TREM-2-deficient cells exhibit diminished phagocytic function and enhanced proinflammatory cytokines production, proceeding to inflammatory injuries and an immunosuppressive environment for disease progression. Despite the growing literature supporting TREM-2+ cells in various diseases, such as neurodegenerative disorders and cancer, substantial facets of TREM-2-mediated signaling remain inadequately understood relevant to pathophysiology conditions. In this direction, herein, we have summarized the current knowledge on TREM-2 biology and cell-specific TREM-2 expression, particularly in the modulation of pivotal TREM-2-dependent functions under physiopathological conditions. Furthermore, molecular regulation and generic biological relevance of TREM-2 are also discussed, which might provide an alternative approach for preventing or reducing TREM-2-associated deformities. At last, we discussed the TREM-2 function in supporting an immunosuppressive cancer environment and as a potential drug target for cancer immunotherapy. Hence, summarized knowledge of TREM-2 might provide a window to overcome challenges in clinically effective therapies for TREM-2-induced diseases in humans.
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Affiliation(s)
- Shiv Bharadwaj
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic.
| | - Yaroslava Groza
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic
| | - Joanna M Mierzwicka
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic
| | - Petr Malý
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic.
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Xu Y, Patterson MT, Dolfi B, Zhu A, Bertola A, Schrank PR, Gallerand A, Kennedy AE, Hillman H, Dinh L, Shekhar S, Tollison S, Bold TD, Ivanov S, Williams JW. Adrenal gland macrophages regulate glucocorticoid production through Trem2 and TGF-β. JCI Insight 2024; 9:e174746. [PMID: 38869957 DOI: 10.1172/jci.insight.174746] [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: 08/11/2023] [Accepted: 06/07/2024] [Indexed: 06/15/2024] Open
Abstract
Glucocorticoid synthesis by adrenal glands (AGs) is regulated by the hypothalamic-pituitary-adrenal axis to facilitate stress responses when the host is exposed to stimuli. Recent studies implicate macrophages as potential steroidogenic regulators, but the molecular mechanisms by which AG macrophages exert such influence remain unclear. In this study, we investigated the role of AG macrophages in response to cold challenge or atherosclerotic inflammation as physiologic models of acute or chronic stress. Using single-cell RNA sequencing, we observed dynamic AG macrophage polarization toward classical activation and lipid-associated phenotypes following acute or chronic stimulation. Among transcriptional alterations induced in macrophages, triggering receptor expressed on myeloid cells 2 (Trem2) was highlighted because of its upregulation following stress. Conditional deletion of macrophage Trem2 revealed a protective role in stress responses. Mechanistically, Trem2 deletion led to increased AG macrophage death, abolished the TGF-β-producing capacity of AG macrophages, and resulted in enhanced glucocorticoid production. In addition, enhanced glucocorticoid production was replicated by blockade of TGF-β signaling. Together, these observations suggest that AG macrophages restrict steroidogenesis through Trem2 and TGF-β, which opens potential avenues for immunotherapeutic interventions to resolve stress-related disorders.
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Affiliation(s)
- Yingzheng Xu
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Michael T Patterson
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Alisha Zhu
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Patricia R Schrank
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Ainsley E Kennedy
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Hannah Hillman
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lynn Dinh
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Sia Shekhar
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Samuel Tollison
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Tyler D Bold
- Center for Immunology and
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Jesse W Williams
- Center for Immunology and
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, USA
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Liu S, Zhang S, Dong H, Jin X, Sun J, Zhou H, Jin Y, Li Y, Wu G. CD63 + tumor-associated macrophages drive the progression of hepatocellular carcinoma through the induction of epithelial-mesenchymal transition and lipid reprogramming. BMC Cancer 2024; 24:698. [PMID: 38849760 PMCID: PMC11157766 DOI: 10.1186/s12885-024-12472-7] [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: 11/01/2023] [Accepted: 06/03/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Tumor-associated macrophages (TAMs) constitute a substantial part of human hepatocellular carcinoma (HCC). The present study was devised to explore TAM diversity and their roles in HCC progression. METHODS Through the integration of multiple 10 × single-cell transcriptomic data derived from HCC samples and the use of consensus nonnegative matrix factorization (an unsupervised clustering algorithm), TAM molecular subtypes and expression programs were evaluated in detail. The roles played by these TAM subtypes in HCC were further probed through pseudotime, enrichment, and intercellular communication analyses. Lastly, vitro experiments were performed to validate the relationship between CD63, which is an inflammatory TAM expression program marker, and tumor cell lines. RESULTS We found that the inflammatory expression program in TAMs had a more obvious interaction with HCC cells, and CD63, as a marker gene of the inflammatory expression program, was associated with poor prognosis of HCC patients. Both bulk RNA-seq and vitro experiments confirmed that higher TAM CD63 expression was associated with the growth of HCC cells as well as their epithelial-mesenchymal transition, metastasis, invasion, and the reprogramming of lipid metabolism. CONCLUSIONS These analyses revealed that the TAM inflammatory expression program in HCC is closely associated with malignant tumor cells, with the hub gene CD63 thus representing an ideal target for therapeutic intervention in this cancer type.
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Affiliation(s)
- Shiqi Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Shuairan Zhang
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Hang Dong
- Phase I Clinical Trails Center, The People's Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiuli Jin
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jing Sun
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Haonan Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yifan Jin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yiling Li
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
| | - Gang Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
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48
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Iwata A, Maruyama J, Natsuki S, Nishiyama A, Tamura T, Tanaka M, Shichino S, Seki T, Komai T, Okamura T, Fujio K, Tanaka M, Asano K. Egr2 drives the differentiation of Ly6C hi monocytes into fibrosis-promoting macrophages in metabolic dysfunction-associated steatohepatitis in mice. Commun Biol 2024; 7:681. [PMID: 38831027 PMCID: PMC11148031 DOI: 10.1038/s42003-024-06357-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 05/20/2024] [Indexed: 06/05/2024] Open
Abstract
Metabolic dysfunction-associated steatohepatitis (MASH), previously called non-alcoholic steatohepatitis (NASH), is a growing concern worldwide, with liver fibrosis being a critical determinant of its prognosis. Monocyte-derived macrophages have been implicated in MASH-associated liver fibrosis, yet their precise roles and the underlying differentiation mechanisms remain elusive. In this study, we unveil a key orchestrator of this process: long chain saturated fatty acid-Egr2 pathway. Our findings identify the transcription factor Egr2 as the driving force behind monocyte differentiation into hepatic lipid-associated macrophages (hLAMs) within MASH liver. Notably, Egr2-deficiency reroutes monocyte differentiation towards a macrophage subset resembling resident Kupffer cells, hampering hLAM formation. This shift has a profound impact, suppressing the transition from benign steatosis to liver fibrosis, demonstrating the critical pro-fibrotic role played by hLAMs in MASH pathogenesis. Long-chain saturated fatty acids that accumulate in MASH liver emerge as potent inducers of Egr2 expression in macrophages, a process counteracted by unsaturated fatty acids. Furthermore, oral oleic acid administration effectively reduces hLAMs in MASH mice. In conclusion, our work not only elucidates the intricate interplay between saturated fatty acids, Egr2, and monocyte-derived macrophages but also highlights the therapeutic promise of targeting the saturated fatty acid-Egr2 axis in monocytes for MASH management.
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Grants
- 22H05190 Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- 22H05064 Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- JPMXP0618217493, JPMXP0622717006, and JPMXP0723833149 Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- 20H03473 Japan Society for the Promotion of Science London (JSPS London)
- 21K06877 Japan Society for the Promotion of Science London (JSPS London)
- JP18gm1210002 Japan Agency for Medical Research and Development (AMED)
- JP21gm6210025 Japan Agency for Medical Research and Development (AMED)
- Ono Medical Research Foundation
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Affiliation(s)
- Ayaka Iwata
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Juri Maruyama
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Shibata Natsuki
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Akira Nishiyama
- Department of Immunology, Yokohama City University Graduate School of Medicine, Kanagawa, 236-0004, Japan
| | - Tomohiko Tamura
- Department of Immunology, Yokohama City University Graduate School of Medicine, Kanagawa, 236-0004, Japan
- Advanced Medical Research Center, Yokohama City University, Kanagawa, 236-0004, Japan
| | - Minoru Tanaka
- Department of Regenerative Medicine, Research Institute National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
| | - Shigeyuki Shichino
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, 278-0022, Japan
| | - Takao Seki
- Department of Biochemistry, Toho University School of Medicine, Tokyo, 143-8540, Japan
| | - Toshihiko Komai
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Tomohisa Okamura
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Keishi Fujio
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Masato Tanaka
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan.
| | - Kenichi Asano
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan.
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49
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Wu TTH, Travaglini KJ, Rustagi A, Xu D, Zhang Y, Andronov L, Jang S, Gillich A, Dehghannasiri R, Martínez-Colón GJ, Beck A, Liu DD, Wilk AJ, Morri M, Trope WL, Bierman R, Weissman IL, Shrager JB, Quake SR, Kuo CS, Salzman J, Moerner W, Kim PS, Blish CA, Krasnow MA. Interstitial macrophages are a focus of viral takeover and inflammation in COVID-19 initiation in human lung. J Exp Med 2024; 221:e20232192. [PMID: 38597954 PMCID: PMC11009983 DOI: 10.1084/jem.20232192] [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: 11/28/2023] [Revised: 02/09/2024] [Accepted: 03/04/2024] [Indexed: 04/11/2024] Open
Abstract
Early stages of deadly respiratory diseases including COVID-19 are challenging to elucidate in humans. Here, we define cellular tropism and transcriptomic effects of SARS-CoV-2 virus by productively infecting healthy human lung tissue and using scRNA-seq to reconstruct the transcriptional program in "infection pseudotime" for individual lung cell types. SARS-CoV-2 predominantly infected activated interstitial macrophages (IMs), which can accumulate thousands of viral RNA molecules, taking over 60% of the cell transcriptome and forming dense viral RNA bodies while inducing host profibrotic (TGFB1, SPP1) and inflammatory (early interferon response, CCL2/7/8/13, CXCL10, and IL6/10) programs and destroying host cell architecture. Infected alveolar macrophages (AMs) showed none of these extreme responses. Spike-dependent viral entry into AMs used ACE2 and Sialoadhesin/CD169, whereas IM entry used DC-SIGN/CD209. These results identify activated IMs as a prominent site of viral takeover, the focus of inflammation and fibrosis, and suggest targeting CD209 to prevent early pathology in COVID-19 pneumonia. This approach can be generalized to any human lung infection and to evaluate therapeutics.
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Affiliation(s)
- Timothy Ting-Hsuan Wu
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
| | - Kyle J. Travaglini
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
| | - Arjun Rustagi
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Duo Xu
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA, USA
| | - Yue Zhang
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Leonid Andronov
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - SoRi Jang
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
| | - Astrid Gillich
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
| | - Roozbeh Dehghannasiri
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA, USA
| | - Giovanny J. Martínez-Colón
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Program in Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Aimee Beck
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Daniel Dan Liu
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Aaron J. Wilk
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Program in Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Winston L. Trope
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Rob Bierman
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
| | - Irving L. Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Joseph B. Shrager
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Veterans Affairs Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Stephen R. Quake
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Christin S. Kuo
- Department of Pediatrics, Pulmonary Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Julia Salzman
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA, USA
| | - W.E. Moerner
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Peter S. Kim
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA, USA
| | - Catherine A. Blish
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Program in Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Mark A. Krasnow
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA, USA
- Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, CA, USA
- Howard Hughes Medical Institute, San Francisco, CA, USA
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50
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Fang Z, Liu R, Xie J, He JC. Molecular mechanism of renal lipid accumulation in diabetic kidney disease. J Cell Mol Med 2024; 28:e18364. [PMID: 38837668 PMCID: PMC11151220 DOI: 10.1111/jcmm.18364] [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: 02/02/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 06/07/2024] Open
Abstract
Diabetic kidney disease (DKD) is a leading cause of end stage renal disease with unmet clinical demands for treatment. Lipids are essential for cell survival; however, renal cells have limited capability to metabolize overloaded lipids. Dyslipidaemia is common in DKD patients and renal ectopic lipid accumulation is associated with disease progression. Unveiling the molecular mechanism involved in renal lipid regulation is crucial for exploring potential therapeutic targets. In this review, we focused on the mechanism underlying cholesterol, oxysterol and fatty acid metabolism disorder in the context of DKD. Specific regulators of lipid accumulation in different kidney compartment and TREM2 macrophages, a lipid-related macrophages in DKD, were discussed. The role of sodium-glucose transporter 2 inhibitors in improving renal lipid accumulation was summarized.
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Affiliation(s)
- Zhengying Fang
- Department of Nephrology, Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Barbara T. Murphy Division of Nephrology, Department of MedicineIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Ruijie Liu
- Barbara T. Murphy Division of Nephrology, Department of MedicineIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Jingyuan Xie
- Department of Nephrology, Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - John Cijiang He
- Barbara T. Murphy Division of Nephrology, Department of MedicineIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Renal SectionJames J Peters Veterans Affair Medical CenterBronxNew YorkUSA
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