Tumor‐Microenvironment‐Responsive Nanomedicine for Enhanced Cancer Immunotherapy

Advanced Science, Journal Year: 2021, Volume and Issue: 9(1)

Published: Nov. 19, 2021

Abstract The past decades have witnessed great progress in cancer immunotherapy, which has profoundly revolutionized oncology, whereas low patient response rates and potential immune‐related adverse events remain major clinical challenges. With the advantages of controlled delivery modular flexibility, nanomedicine offered opportunities to strengthen antitumor immune responses sensitize tumor immunotherapy. Furthermore, tumor‐microenvironment (TME)‐responsive been demonstrated achieve specific localized amplification tissue a safe effective manner, increasing immunotherapy reducing side effects simultaneously. Here, recent TME‐responsive for is summarized, responds signals TME, such as weak acidity, reductive environment, high‐level reactive oxygen species, hypoxia, overexpressed enzymes, adenosine triphosphate. Moreover, combine nanomedicine‐based therapy immunotherapeutic strategies overcome each step cancer‐immunity cycle enhance discussed. Finally, existing challenges further perspectives this rising field with hope improved development applications are

Language: Английский

---

Biomaterials tools to modulate the tumour microenvironment in immunotherapy

Nature Reviews Bioengineering, Journal Year: 2023, Volume and Issue: 1(2), P. 125 - 138

Published: Jan. 25, 2023

Language: Английский

---

Nanoparticles in tumor microenvironment remodeling and cancer immunotherapy

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

---

Harnessing Nanomaterials for Cancer Sonodynamic Immunotherapy

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(33)

Published: March 7, 2023

Abstract Immunotherapy has made remarkable strides in cancer therapy over the past decade. However, such emerging still suffers from low response rates and immune‐related adverse events. Various strategies have been developed to overcome these serious challenges. Therein, sonodynamic (SDT), as a non‐invasive treatment, received ever‐increasing attention especially treatment of deep‐seated tumors. Significantly, SDT can effectively induce immunogenic cell death trigger systemic anti‐tumor immune response, termed immunotherapy. The rapid development nanotechnology revolutionized effects with robust induction. As result, more innovative nanosonosensitizers synergistic modalities are established superior efficacy safe profile. In this review, recent advances immunotherapy summarized particular emphasis on how be explored harness for amplifying response. Moreover, current challenges field prospects its clinical translation also presented. It is anticipated that review provide rational guidance facilitate nanomaterials‐assisted immunotherapy, helping pave way next‐generation eventually achieve durable patients.

Language: Английский

---

Targeted nanomedicines remodeling immunosuppressive tumor microenvironment for enhanced cancer immunotherapy

Acta Pharmaceutica Sinica B, Journal Year: 2022, Volume and Issue: 12(12), P. 4327 - 4347

Published: Nov. 4, 2022

Cancer immunotherapy has significantly flourished and revolutionized the limited conventional tumor therapies, on account of its good safety long-term memory ability. Discouragingly, low patient response rates potential immune-related side effects make it rather challenging to literally bring from bench bedside. However, become evident that, although immunosuppressive microenvironment (TME) plays a pivotal role in facilitating progression metastasis, also provides various targets for remodeling TME, which can consequently bolster effectiveness antitumor suppression. Additionally, particular characteristics turn, be exploited as avenues designing diverse precise targeting nanomedicines. In general, is urgent necessity deliver nanomedicines thus improving therapeutic outcomes clinical translation prospects immunotherapy. Herein, we will illustrate several formation mechanisms TME. More importantly, variety strategies concerning TME strengthening patients' immune systems, reviewed. Ultimately, discuss existing obstacles future perspectives development Hopefully, thriving bloom vibrancy further exploration comprehensive cancer treatment.

Language: Английский

---

Stimuli-Responsive Polymer-Based Nanosystems for Cancer Theranostics

ACS Nano, Journal Year: 2023, Volume and Issue: 17(23), P. 23223 - 23261

Published: Dec. 2, 2023

Stimuli-responsive polymers can respond to internal stimuli, such as reactive oxygen species (ROS), glutathione (GSH), and pH, biological enzymes, external lasers ultrasound, etc., by changing their hydrophobicity/hydrophilicity, degradability, ionizability, thus have been widely used in biomedical applications. Due the characteristics of tumor microenvironment (TME), stimuli-responsive that cater specifically TME extensively prepare smart nanovehicles for targeted delivery therapeutic diagnostic agents tissues. Compared conventional drug nanosystems, TME-responsive nanosystems many advantages, high sensitivity, broad applicability among different tumors, functional versatility, improved biosafety. In recent years, a great deal research has devoted engineering efficient polymeric significant improvement made both cancer diagnosis therapy. this review, we summarize some advances involving use polymer nanocarriers delivery, imaging, therapy, theranostics. Various chemical stimuli will be described context nanosystems. Accordingly, groups responsible responsiveness strategies incorporate these into discussed detail. With on topic expending at fast pace, innovative concepts, sequential cascade release, NIR-II multifunctional formulations, emerged popular enhanced performance, which also included here with up-to-date illustrations. We hope review offer valuable insights selection optimization help accelerate future applications treatment.

Language: Английский

---

Tumor acidity: From hallmark of cancer to target of treatment

Frontiers in Oncology, Journal Year: 2022, Volume and Issue: 12

Published: Aug. 29, 2022

Tumor acidity is one of the cancer hallmarks and associated with metabolic reprogramming use glycolysis, which results in a high intracellular lactic acid concentration. Cancer cells avoid stress major by activation expression proton lactate transporters exchangers have an inverted pH gradient (extracellular pHs are alkaline, respectively). The shift tumor acid-base balance promotes proliferation, apoptosis avoidance, invasiveness, metastatic potential, aggressiveness, immune evasion, treatment resistance. For example, weak-base chemotherapeutic agents may substantially reduced cellular uptake capacity due to "ion trapping". Lactic negatively affects functions activated effector T cells, stimulates regulatory them express programmed cell death receptor 1. On other hand, inversion could be weakness that will allow development new promising therapies, such as tumor-targeted pH-sensitive antibodies pH-responsible nanoparticle conjugates anticancer drugs. regulation levels pharmacological inhibition proteins (monocarboxylate transporters, H

Language: Английский

---

Dual‐Cascade Activatable Nanopotentiators Reshaping Adenosine Metabolism for Sono‐Chemodynamic‐Immunotherapy of Deep Tumors

Advanced Science, Journal Year: 2023, Volume and Issue: 10(10)

Published: Feb. 2, 2023

Immunotherapy is an attractive treatment strategy for cancer, while its efficiency and safety need to be improved. A dual-cascade activatable nanopotentiator sonodynamic therapy (SDT) chemodynamic (CDT)-cooperated immunotherapy of deep tumors via reshaping adenosine metabolism herein reported. This (NPMCA) constructed through crosslinking deaminase (ADA) with chlorin e6 (Ce6)-conjugated manganese dioxide (MnO2) nanoparticles a reactive oxygen species (ROS)-cleavable linker. In the tumor microenvironment ultrasound (US) irradiation, NPMCA mediates CDT SDT concurrently in covered 2-cm tissues produce abundant ROS, which results scissoring ROS-cleavable linkers activate ADA within NCMCA block metabolism. Moreover, immunogenic cell death (ICD) dying cells upregulation stimulator interferon genes (STING) triggered by generated ROS Mn2+ from NPMCA, respectively, leading activation antitumor immune response. The potency response further reinforced reducing accumulation activated ADA. As result, enables SDT-cooperated immunotherapy, showing obviously improved therapeutic efficacy inhibit growths bilateral tumors, primary are tissues.

Language: Английский

---

Implications of hydrogen sulfide in colorectal cancer: Mechanistic insights and diagnostic and therapeutic strategies

Redox Biology, Journal Year: 2023, Volume and Issue: 59, P. 102601 - 102601

Published: Jan. 7, 2023

Hydrogen sulfide (H2S) is an important signaling molecule in colorectal cancer (CRC). It produced the colon by catalytic synthesis of colonocytes' enzymatic systems and release intestinal microbes, oxidatively metabolized mitochondria. Both endogenous H2S colonic epithelial cells exogenous lumen contribute to onset progression CRC. The up-regulation synthetases thought be cause elevated levels CRC cells. Different diagnostic probes combination therapies, as well tumor treatment approaches through modulation, have been developed recent years become active area investigation for diagnosis In this review, we focus on specific mechanisms production oxidative metabolism function occurrence, progression, diagnosis, We also discuss present challenges provide insights into future research burgeoning field.

Language: Английский

---

Boosting Checkpoint Immunotherapy with Biomaterials

ACS Nano, Journal Year: 2023, Volume and Issue: 17(4), P. 3225 - 3258

Published: Feb. 6, 2023

The immune checkpoint blockade (ICB) therapy has revolutionized the field of cancer treatment, while low response rates and systemic toxicity limit its clinical outcomes. With rapid advances in nanotechnology materials science, various types biomaterials have been developed to maximize therapeutic efficacy minimizing side effects by increasing tumor antigenicity, reversing immunosuppressive microenvironment, amplifying antitumor response, reducing extratumoral distribution inhibitors as well enhancing their retention within target sites. In this review, we reviewed current design strategies for different augment ICB effectively then discussed present representative biomaterial-assisted modulation targeted delivery boost therapy. Current challenges future development prospects expanding with were also summarized. We anticipate review will be helpful developing emerging promoting application

Language: Английский

---