Macrophage polarization in the tumor microenvironment: Emerging roles and therapeutic potentials DOI Open Access
Wenru Zhang, Mengmeng Wang, Chonghao Ji

et al.

Biomedicine & Pharmacotherapy, Journal Year: 2024, Volume and Issue: 177, P. 116930 - 116930

Published: June 14, 2024

The tumor microenvironment (TME) is a combination of cells and indigenous host stroma, which consists tumor-infiltrating immune cells, endothelial fibroblasts, pericytes, non-cellular elements. Tumor-associated macrophages (TAMs) represent the major cell type are generally polarized into two functionally contradictory subtypes, namely classical activated M1 alternatively M2 macrophages. Macrophage polarization refers to how at given time space. interplay between TME macrophage can influence initiation progression, making TAM potential target for cancer therapy. Here, we review latest investigations on factors orchestrating in TME, affects perspectives modulating immunotherapy.

Language: Английский

Targeting drugs to tumours using cell membrane-coated nanoparticles DOI
Ronnie H. Fang, Weiwei Gao, Liangfang Zhang

et al.

Nature Reviews Clinical Oncology, Journal Year: 2022, Volume and Issue: 20(1), P. 33 - 48

Published: Oct. 28, 2022

Language: Английский

Citations

481

Immunosuppressive cells in cancer: mechanisms and potential therapeutic targets DOI Creative Commons
Yan Tie, Fan Tang, Yuquan Wei

et al.

Journal of Hematology & Oncology, Journal Year: 2022, Volume and Issue: 15(1)

Published: May 18, 2022

Abstract Immunotherapies like the adoptive transfer of gene-engineered T cells and immune checkpoint inhibitors are novel therapeutic modalities for advanced cancers. However, some patients refractory or resistant to these therapies, mechanisms underlying tumor resistance have not been fully elucidated. Immunosuppressive such as myeloid-derived suppressive cells, tumor-associated macrophages, neutrophils, regulatory (Tregs), dendritic critical factors correlated with resistance. In addition, cytokines secreted by immunosuppressive also mediate progression escape Thus, targeting related signals is promising therapy improve efficacy immunotherapies reverse even certain success in preclinical studies specific types cancer, large perspectives unknown therapies undesirable outcomes clinical patients. this review, we comprehensively summarized phenotype, function, potential targets microenvironment.

Language: Английский

Citations

306

Cell membrane coating integrity affects the internalization mechanism of biomimetic nanoparticles DOI Creative Commons
Lizhi Liu, Xuan Bai, Maria‐Viola Martikainen

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Sept. 30, 2021

Cell membrane coated nanoparticles (NPs) have recently been recognized as attractive nanomedical tools because of their unique properties such immune escape, long blood circulation time, specific molecular recognition and cell targeting. However, the integrity coating on NPs, a key metrics related to quality these biomimetic-systems resulting biomedical function, has remained largely unexplored. Here, we report fluorescence quenching assay probe coating. In contradiction common assumption perfect coating, uncover that up 90% biomimetic NPs are only partially coated. Using in vitro homologous targeting studies, demonstrate could still be internalized by target cells. By combining simulations with experimental analysis, further identify an endocytic entry mechanism for NPs. We unravel high degree (≥50%) enter cells individually, whereas low (<50%) need aggregate together before internalization. This quantitative method fundamental understanding how will enhance rational designing nanosystems pave way more effective cancer nanomedicine.

Language: Английский

Citations

251

Tumor-associated macrophages in cancer: recent advancements in cancer nanoimmunotherapies DOI Creative Commons
Nisha Kumari, Seung Hong Choi

Journal of Experimental & Clinical Cancer Research, Journal Year: 2022, Volume and Issue: 41(1)

Published: Feb. 19, 2022

Abstract Cancer immunotherapy has emerged as a novel cancer treatment, although recent trials have produced suboptimal outcomes, with durable responses seen only in small number of patients. The tumor microenvironment (TME) been shown to be responsible for immune escape and therapy failure. vital component the TME is tumor-associated macrophages (TAMs), which are usually associated poor prognosis drug resistance, including immunotherapies, promising targets immunotherapy. Recently, nanoparticles, because their unique physicochemical characteristics, crucial translational moieties tackling tumor-promoting TAMs that amplify sensitize tumors immunotherapies safe effective manner. In this review, we mainly described current potential nanomaterial-based therapeutic strategies target TAMs, restricting survival, inhibiting recruitment functionally repolarizing tumor-supportive antitumor type. understanding origin polarization role progression prognostic significance was also discussed review. We highlighted evolution chimeric antigen receptor (CAR)-macrophage cell therapy.

Language: Английский

Citations

217

Role of exosomal non-coding RNAs from tumor cells and tumor-associated macrophages in the tumor microenvironment DOI Creative Commons

Zijie Xu,

Yi Chen, Ling Ma

et al.

Molecular Therapy, Journal Year: 2022, Volume and Issue: 30(10), P. 3133 - 3154

Published: April 9, 2022

Exosomes have a crucial role in intercellular communication and mediate interactions between tumor cells tumor-associated macrophages (TAMs). Exosome-encapsulated non-coding RNAs (ncRNAs) are involved various physiological processes. Tumor-derived exosomal ncRNAs induce M2 macrophage polarization through signaling pathway activation, signal transduction, transcriptional post-transcriptional regulation. Conversely, TAM-derived promote proliferation, metastasis, angiogenesis, chemoresistance, immunosuppression. MicroRNAs gene silencing by directly targeting mRNAs, whereas lncRNAs circRNAs act as miRNA sponges to indirectly regulate protein expressions. The of tumor-host is ubiquitous. Current research increasingly focused on the microenvironment. On basis "cancer-immunity cycle" hypothesis, we discuss effects immune T cell exhaustion, overexpression programmed death ligands, create immunosuppressive Furthermore, potential applications prospects clinical biomarkers drug delivery systems. 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Language: Английский

Citations

199

A Polymer Multicellular Nanoengager for Synergistic NIR‐II Photothermal Immunotherapy DOI
Cheng Xu, Yuyan Jiang, Yahong Han

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(14)

Published: Feb. 26, 2021

Abstract Cell‐membrane‐coated nanoparticles (CCNPs) that integrate the biophysiological advantages of cell membranes with multifunctionalities synthetic materials hold great promise in cancer immunotherapy. However, strategies have yet to be revealed further improve their immunotherapeutic efficacy. Herein, a polymer multicellular nanoengager (SPNE) for synergistic second‐near‐infrared‐window (NIR‐II) photothermal immunotherapy is reported. The consists an NIR‐II absorbing as core, which camouflaged fused derived from immunologically engineered tumor cells and dendritic (DCs) vaccine shell. In association high accumulation lymph nodes tumors, engagement ability SPNE enables effective cross‐interactions among cells, DCs, T leading augmented activation relative bare or tumor‐cell‐coated nanoparticles. Upon deep‐tissue penetrating photoirradiation, eradicates induces immunogenic death, eliciting anti‐tumor immunity. Such effect eventually inhibits growth, prevents metastasis procures immunological memory. Thus, this study presents general cell‐membrane‐coating approach develop photo‐immunotherapeutic agents therapy.

Language: Английский

Citations

193

Nanoparticles in tumor microenvironment remodeling and cancer immunotherapy DOI Creative Commons
Qiang Lü,

Dongquan Kou,

Shenghan Lou

et al.

Journal of Hematology & Oncology, Journal Year: 2024, Volume and Issue: 17(1)

Published: April 2, 2024

Abstract Cancer immunotherapy and vaccine development have significantly improved the fight against cancers. Despite these advancements, challenges remain, particularly in clinical delivery of immunomodulatory compounds. The tumor microenvironment (TME), comprising macrophages, fibroblasts, immune cells, plays a crucial role response modulation. Nanoparticles, engineered to reshape TME, shown promising results enhancing by facilitating targeted These nanoparticles can suppress fibroblast activation, promote M1 macrophage polarization, aid dendritic cell maturation, encourage T infiltration. Biomimetic further enhance increasing internalization agents cells such as cells. Moreover, exosomes, whether naturally secreted body or bioengineered, been explored regulate TME immune-related affect cancer immunotherapy. Stimuli-responsive nanocarriers, activated pH, redox, light conditions, exhibit potential accelerate co-application with checkpoint inhibitors is an emerging strategy boost anti-tumor immunity. With their ability induce long-term immunity, nanoarchitectures are structures development. This review underscores critical overcoming current driving advancement modification.

Language: Английский

Citations

135

Harnessing anti‐tumor and tumor‐tropism functions of macrophages via nanotechnology for tumor immunotherapy DOI Creative Commons

Yanhui Zheng,

Yaobao Han,

Qiao Sun

et al.

Exploration, Journal Year: 2022, Volume and Issue: 2(3)

Published: Feb. 25, 2022

Reprogramming the immunosuppressive tumor microenvironment by modulating macrophages holds great promise in immunotherapy. As a class of professional phagocytes and antigen-presenting cells innate immune system, can not only directly engulf clear cells, but also play roles presenting tumor-specific antigen to initiate adaptive immunity. However, tumor-associated (TAMs) usually display tumor-supportive M2 phenotype rather than anti-tumor M1 phenotype. They support escape immunological surveillance, aggravate progression, impede T cell Although many TAMs-modulating agents have shown success therapy multiple tumors, they face enormous challenges including poor accumulation off-target side effects. An alternative solution is use advanced nanostructures, which deliver augment therapeutic efficacy, serve as modulators TAMs. Another important strategy exploitation macrophage-derived components tumor-targeting delivery vehicles. Herein, we summarize recent advances targeting engineering for immunotherapy, (1) direct indirect effects on augmentation immunotherapy (2) strategies macrophage-based drug carriers. The existing perspectives immunotherapies are highlighted.

Language: Английский

Citations

118

Macrophage cell membrane-based nanoparticles: a new promising biomimetic platform for targeted delivery and treatment DOI Creative Commons
Yuesong Wu,

Shengli Wan,

Shuo Yang

et al.

Journal of Nanobiotechnology, Journal Year: 2022, Volume and Issue: 20(1)

Published: Dec. 27, 2022

Abstract Synthetic nanoparticles with surface bioconjugation are promising platforms for targeted therapy, but their simple biological functionalization is still a challenging task against the complex intercellular environment. Once synthetic enter body, they phagocytosed by immune cells system. Recently, cell membrane camouflage strategy has emerged as novel therapeutic tactic to overcome these issues utilizing fundamental properties of natural cells. Macrophage, type system cells, plays critical roles in various diseases, including cancer, atherosclerosis, rheumatoid arthritis, infection and inflammation, due recognition engulfment function removing substances pathogens. Macrophage membranes inherit protein profiles biointerfacing source Therefore, macrophage cloaking can protect from phagocytosis Meanwhile, make use correspondence accurately recognize antigens target inflamed tissue or tumor sites. In this review, we have summarized advances fabrication, characterization homing capacity cancers, cardiovascular central nervous microbial infections. Although membrane-camouflaged currently fetal stage development, there huge potential challenge explore conversion mode clinic.

Language: Английский

Citations

112

Recent advances in multifunctional nanomaterials for photothermal-enhanced Fenton-based chemodynamic tumor therapy DOI Creative Commons
Panchanathan Manivasagan,

Ara Joe,

Hyowon Han

et al.

Materials Today Bio, Journal Year: 2022, Volume and Issue: 13, P. 100197 - 100197

Published: Jan. 1, 2022

Photothermal (PT)-enhanced Fenton-based chemodynamic therapy (CDT) has attracted a significant amount of research attention over the last five years as highly effective, safe, and tumor-specific nanomedicine-based therapy. CDT is new emerging nanocatalyst-based therapeutic strategy for in situ treatment tumors via Fenton reaction or Fenton-like reaction, which got fast progress recent because its high specificity activation by endogenous substances. A variety multifunctional nanomaterials such metal-, metal oxide-, metal-sulfide-based nanocatalysts have been designed constructed to trigger within tumor microenvironment (TME) generate cytotoxic hydroxyl radicals (•OH), efficient killing cells. However, still required enhance curative outcomes minimize side effects. Specifically, efficiency certain CDTs hindered TME, including low levels hydrogen peroxide (H2O2), overexpression reduced glutathione (GSH), catalytic efficacy reactions (pH 5.6-6.8), makes it difficult completely cure cancer using monotherapy. For this reason, photothermal (PTT) utilized combination with efficacy. More interestingly, heating during PTT not only causes damage cells but can also accelerate generation •OH reactions, thus enhancing efficacy, providing more effective when compared Currently, synergistic PT-enhanced both PT properties made enormous theranostics. there no comprehensive review on subject published date. In review, we first summarize treatment. We then discuss potential challenges future development nanocatalytic clinical application.

Language: Английский

Citations

107