Table 2 Role of tissue macrophages in diseases

From: Tissue macrophages: origin, heterogenity, biological functions, diseases and therapeutic targets

Disease Category

Specific Diseases

Macrophage Subtypes

Secretory Phenotype

Biological Function

References

Cancer

tumor microenvironment

M1 macrophages (CD14, CD16/CD33, CD40, CD86, CD80, iNOS, and TLR2)

IL-1α, IL-1β, IL-6, IL-12, IL-23, CXCL9, CXCL10, CCL5, COX-2, and TNF-α

Phagocytosis of tumor cells, enhancing the function of antigen presentation, and releasing inflammatory cytokines to activate the anti-tumor efficacy of adaptive immunity

86,560

M2 macrophages (M2a: CD206, CD163, and Arg-1; M2b: CD86, HLA-DR; M2c: CD163, CD206, and MerTK; M2d: TLR2, TLR4, TLR7, and TLR9)

IL-10, IL-4, TGF-β, Arg-1, PGE2, VEGF, MMPs, IDO, and glucocorticoids

Promoting tumor growth, remodeling the tumor metabolic immune microenvironment, enhancing its invasiveness and metastasis, angiogenesis, and immune evasion

1117,1118

Tie2+ TAMs

VEGF, PDGF-β, and CECR1

Promoting the development and maturation of tumor vasculature

594

SPP1+ TAMs

MMP9, MMP12, MMP14, MMP19, VEGF-A, collagen, IGF-1

Promoting angiogenesis and tumor growth

615,1119

C1Q+ TAMs

IL-10, IDO

Promoting Treg recruitment, inhibiting the effector function of CD8 T cells, and promoting M2 macrophage polarization

1120,1121

FCN1+ TAMs

Not clarified

Related to tumor-associated inflammatory functions

1122

CCL18+ TAMs

CCL18

Promoting tumor proliferation and shaping the tumor immunosuppressive microenvironment

1122,1123

glioblastoma

CD11b+ CD163+ TAMs

PTN

Promoting the growth and development of glioblastoma

538

TIM3+ VISTA+ TAMs

Not clarified

hindering the production of pro-inflammatory TAMs

659

Hypoxia-TAMs

ADM

Promoting tumor vascular instability, affecting the efficacy of anti-tumor drugs

612

CD68+ SOX2+ TAMs

Not clarified

Shaping the immune microenvironment leads to resistance to ICB therapy

651

Breast cancer

Lyve-1+ TAMs

PDGF-C

Expanding the perivascular stromal cell population to create an environment conducive to angiogenesis

581

APOE+ TAMs

Not clarified

Promoting CD8+ T cell exhaustion

635

STAB1+ TREM2+ TAMs

Not clarified

Shaping the immunosuppressive microenvironment

636

Ependymoma

CCL2+ TAMs

IL-1β, CCL3, CCL4

Promoting inflammatory responses to inhibit tumor occurrence and development

561

CD44+ TAMs

VEGFA

Promoting tumor angiogenesis

 

Inflammation and autoimmune disease

Rheumatoid arthritis (RA)

CX3CR1hi Ly6Clow F4/80low IA/IElow Macrophages (arthritis-associated osteoclastogenic macrophages)

IL-6, TNF-α

Promoting RA joint destruction

37

CD11b+ Flt-1+ GRK2+ macrophages

VEGF

Promoting synovitis and angiogenesis

684

Systemic lupus erythematosus (SLE)

CD40L+ Macrophages (M1)

IL-1β, IFN-γ, CXCL10, CCL2, IL-6, and TNF-α

Activating B cells, promoting antibody production, and exacerbating systemic inflammatory responses

698

Systemic sclerosis (SSc)

CD163+ Macrophages (M2)

TGF-β, PDGF, and CCL18

Promoting skin and lung fibrosis

734

SPP1+ Macrophages

TGF-β, PDGF

 

737

FCGR3A+ Macrophages

IL-6, CCL18

 

741

CD163+ CXCL10+ Fli- (Mixed M1/M2 phenotype) Macrophages

M1 and M2-associated cytokines

 

750

Cardiovascular diseases

Myocardial Infarction (MI)

Ly-6C− MHC-IIhi CX3CR1hi CD206int MerTK+ CD11clow CCR2− CD64+ Macrophages

Not clarified

Phagocytosis and immune surveillance

770

Ly-6C− MHC-IIhi CX3CR1hi CD206int MerTK+ CD11chi CCR2+ CD103− CD64+

TNF-α, IL-1, IL-6, MCP-1, and MMPs

Clearing damaged tissue but also potentially exacerbating myocardial remodeling and fibrosis

 

Ly-6C− Nr4a1+ CD206+ MerTK+ Macrophages

IL-10, TGF-β, HIF-α, VEGFA, and SPP1

Promoting tissue repair and healing as well as fibrosis

837

Bhlhe41+ Macrophages

Not clarified

Preventing excessive myocardial fibrosis and promoting repair

846

Atherosclerosis (AS)

CCR2+ Macrophages (M1)

IL-1β, IL-6, TNF-α, MMP1, MMP3, and MMP10

Promoting the progression of atherosclerosis and causing plaque instabilit

766

CCR2- Macrophages (M2)

IL-10, TGF-β, MMP11, MMP12, MMP15

Suppressing inflammation and promoting cholesterol efflux

 

SR-A+ CD36+ LOX-1+ Macrophages (LAMs)

IL-1β, IL-6, TNF-α, and MMPs

Forming plaques and promoting their instability and necrosis

785

Neurodegeneration disease

Alzheimer’s disease

SPP1+ TREM2+ DAMs

SPP1

Participating in the phagocytosis of amyloid-beta and involved in activating immune regulatory pathways

71

CD36+ BAMs

ROS

Causing neurovascular dysfunction, cerebral amyloid angiopathy (CAA), and cognitive impairment

851

CD169+ DIMs

TIMP1, MMP9

Increasing inflammatory responses and extracellular matrix remodeling

852

Parkinson’s Disease

CD11b+ TMEM119+ LRRK2+ Microglia

Not clarified

Exacerbating neuroinflammatory responses and neurotoxicity

874

CD68+ MHC-II Microglia

TNF-α, IL-1β

Promoting antigen presentation and T cell activation

887

Metabolic disorders

Non-Alcoholic Fatty Liver Disease (NAFLD)

CD36+ PLIN2+ ABCA1+ TREM2+ Macrophages (ATMs)

Not clarified

Possessing strong capabilities in fat uptake and metabolism

898,901

TIM4+ VSIG4+ CLE4F+ FOLR2+ Macrophages (KCs)

IL-1β, ΤNF-α

Inhibiting the PPARα pathway in hepatocytes, thereby impairing lipid metabolism and exacerbating hepatic steatosis

77

TIM4- Ly-6Chi CCR2+ Macrophages (MoKCs)

IL-1β, ΤNF-α

 

931

TREM2+ Macrophages (LAMs)

IL-1β, ΤNF-α

 

937

SPP1+ LGALS3+ CCR+ TNFSF12+ Macrophages

TGF-β, TNF, IL-1β, and galectin-3

Promoting liver fibrosis and leading to cirrhosis

942

TREM2+ GPNMB+ SLC40A1+ APOE+ C1QA+ Macrophages (TAMs)

TNF-α, IL-6, TGF-β, and MCP-1

Shaping an immunosuppressive microenvironment in liver cancer, promoting angiogenesis, and liver cancer growth

952

Trauma

Wound microenvironment

CD206+ Macrophages (M2a)

TGF-β, VEGF

Promoting wound angiogenesis and scar tissue formation

36

CD163+ CD206+ MerTK+ Macrophages (Mreg)

TGF-β

Phagocytosing excessive matrix to prevent fibrosis

958

Traumatic spinal cord injury

TMEM119+ Macrophages

IL-1β, IL-6, TNF-α

Causing persistent inflammation around the lesion and damage to neuronal axons and dendrites

962

MRC1+ Macrophages

IL-10

Reducing the formation of microglia and astrocytes in neural injury

964