Reactive Oxygen Species-Sensitive Nanophotosensitizers Composed of Buthionine Sulfoximine-Conjugated Chitosan Oligosaccharide for Enhanced Photodynamic Treatment of Cancer Cells DOI Open Access
Hyoyoung Lee,

Ji-Sun Park,

Taeyu Grace Kim

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(23), P. 12609 - 12609

Published: Nov. 24, 2024

The efficacy of photodynamic therapy (PDT) based on traditional photosensitizers is generally limited by the cellular redox homeostasis system due to reactive oxygen species (ROS) scavenging effect glutathione (GSH). In this study, buthionine sulfoximine (BSO), a GSH inhibitor, was conjugated with amine group chitosan oligosaccharide (COS) using thioketal linker (COSthBSO) liberate BSO and chlorine e6 (Ce6) under oxidative stress, then, Ce6-COSthBSO NP (Ce6-COSthBSO NP), fabricated dialysis procedure, showed an accelerated release rate Ce6 addition hydrogen peroxide, indicating that nanophotosensitizers have ROS sensitivity. in vitro cell culture study HCT116 colon carcinoma cells, combination efficiently suppressed intracellular increased production compared sole treatment Ce6. particular, higher suppression levels free Ce6/BSO combination. These results were fact delivered region, levels, elevated levels. vivo animal tumor xenograft demonstrated being tissue, i.e., fluorescence intensity tissue than those other organs. growth Ce6, might suppress increase microenvironment. Specifically, strongest performance inhibition or CE6/BSO combination, they then inhibited growth. We suggest COSthBSO are promising candidates for PDT cancer cells.

Language: Английский

Research Progress of Disulfide Bond Based Tumor Microenvironment Targeted Drug Delivery System DOI Creative Commons
Weiran Ma, Xiaoying Wang, Dongqi Zhang

et al.

International Journal of Nanomedicine, Journal Year: 2024, Volume and Issue: Volume 19, P. 7547 - 7566

Published: July 1, 2024

Abstract: Cancer poses a significant threat to human life and health. Chemotherapy is currently one of the effective cancer treatments, but many chemotherapy drugs have cell toxicity, low solubility, poor stability, narrow therapeutic window, unfavorable pharmacokinetic properties. To solve above problems, target drug delivery tumor cells, reduce side effects drugs, an anti-tumor system based on microenvironment has become focus research in recent years. The construction reduction-sensitive nanomedicine disulfide bonds attracted much attention. Disulfide good reductive responsiveness can effectively high glutathione (GSH) levels environment, enabling precise delivery. further enhance targeting accelerate release, are often combined with pH-responsive nanocarriers highly expressed ligands cells construct systems. connect molecules polymer system, as well between different carrier molecules. This article summarized systems (DDS) that researchers constructed years bond microenvironment, cleavage-triggering conditions, various loading strategies, design. In this review, we also discuss controlled release mechanisms these DDS clinical applicability challenges faced translation. Keywords: bond, systems, GSH/ROS

Language: Английский

Citations

20

Exploring the Future of Metal‐Based Anticancer Agents: A Comprehensive Review of Ruthenium‐Based Complexes DOI Open Access
Syamal D. Bhattacharya, Tenzin Adon, Karen M. DSouza

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(9)

Published: March 1, 2025

Abstract Ruthenium complexes are gaining recognition in oncology as promising alternatives to the traditionally used platinum‐based anticancer agents. Unlike Pt agents, they can better differentiate between healthy and malignant cells, minimizing adverse side effects. They exhibit advantageous properties such thermodynamic kinetic stability, increased water solubility, enhanced cellular absorption, superior selectivity cytotoxicity for tumors, decreased toxicity cells. has been make having structural variability ability undergo ligand exchange. effective against metastatic tumor cells interact with components; their significant charges large cavities allow efficient molecule encapsulation. These being explored enhance efficacy enzymatic research targeted therapies. The manifold biochemical of ruthenium induce cell apoptosis through various signaling pathways them candidates future Despite successful testing some these clinical trials, none have commercially available. Continued aims unlock full potential cancer treatment. This review covers a few findings past 6 years on ligated organic moieties antineoplastic

Language: Английский

Citations

1

Absorptivity Is an Important Determinant in the Toxicity Difference between Aristolochic Acid I and Aristolochic Acid II DOI

Hong-Ching Kwok,

Hei-Tak Tse,

Kwan Wah Ng

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Inadvertent exposure to aristolochic acids (AAs) is causing chronic renal disease worldwide, with acid I (AA-I) identified as the primary toxic agent. This study employed chemical methods investigate mechanisms underlying nephrotoxicity and carcinogenicity of AA-I. Aristolochic II (AA-II), which has a structure similar that AA-I, was investigated same for comparison. Despite their structural similarities, findings from cultured human cells gut sac experiments showed AA-I absorbed more effectively than AA-II (∼3 times greater AA-II; p < 0.001). increased absorption, along previously observed higher activity reductive activation enzymes results in DNA damage oxidative stress, both are key factors AA-related toxicity. The patterns cell mortality (34.4 ± 2.3% vs 9.7 0.1% at 80 μM; 0.0001), adduct formation 0.001), stress levels relation concentrations indicate absorption rate significant contributor its toxicity also found be further enhanced by (natural) coexistence AA-II. Since differ only methoxy group, future research on reducing risks associated AA should focus strategies lower these compounds.

Language: Английский

Citations

0

Regulation of Postoperative Cognitive Dysfunction by Glutathione Under Various Pathways: A Narrative Review DOI Open Access

Yan He,

Ying Zhang, Qing Liu

et al.

Journal of Biochemical and Molecular Toxicology, Journal Year: 2025, Volume and Issue: 39(2)

Published: Feb. 1, 2025

Postoperative cognitive dysfunction (POCD) is a common neurological complication after surgery and general anesthesia, the incidence increases with age. Will have negative impact on patients, family society. At present, neuroinflammation oxidative stress are main recognized mechanisms. Glutathione (GSH) powerful reducing agent may be related to POCD. Using medical search engines such as PubMed, Web of Science, we analyzed articles topics as: POCD, GSH, microglia, astrocyte, oligodendrocyte, ferroptosis, BDNF, Neuroinflammation, stress. The above searched in databases using Boolean operations. We included original articles, reviews other article types books. According reviewed literature, GSH treatment for Specific targeted therapies POCD still sparse, therefore, implementation preventive strategies appears remain optimal attitude. Further research needed better understanding

Language: Английский

Citations

0

Ros-Responsive Cationic Polymer Containing Ferrocene for Gene Delivery and Enhanced Tumor Cell Apoptosis/Ferroptosis DOI
Qinfang Zhang,

Rui-Mo Zhao,

Lei Yu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0

GSH-responsive nanoparticles enhance ovarian cancer chemo-immunotherapy via DNA damage repair pathway inhibition and cGAS-STING pathway activation DOI Creative Commons
Miao Ao,

Hongyi Hou,

He Zhang

et al.

Nano Today, Journal Year: 2025, Volume and Issue: 62, P. 102729 - 102729

Published: March 25, 2025

Language: Английский

Citations

0

The outcast of medicine: metals in medicine--from traditional mineral medicine to metallodrugs DOI Creative Commons

David Bai,

Michał Nowak,

Dajun Lu

et al.

Frontiers in Pharmacology, Journal Year: 2025, Volume and Issue: 16

Published: April 7, 2025

Metals have long held a significant role in the human body and been utilized as mineral medicines for thousands of years. The modern advancement metals pharmacology, particularly metallodrugs, has become crucial disease treatment. As machanism metallodurgsare increasingly uncovered, some metallodrugs are already approved by FDA widely used treating antitumor, antidiabetes, antibacterial. Therefore, thorough understanding metallodrug development is essential advancing future study. This review offers an in-depth examination evolution applications within contemporary medicine. We specifically aim to summarize historical trajectory Traditional Chinese Mineral Medicine analyzing key texts representative medicines. Additionally, we discuss recent advancements metallodrugs' mechanisms, such protein interactions, enzyme inhibition, DNA reactive oxygen species (ROS) generation, cellular structure targeting. Furthermore, address challenges propose potential solutions. Lastly, outline directions enhance their efficacy effectiveness. progression broadened contributed significantly patient health, creating good healthcare solutions global population.

Language: Английский

Citations

0

Nanotherapeutics induced redox resetting of oxidative and nitrosative stress: targeting glutathione-depletion in cancer DOI

Kapil Dangi,

Vijay Kumar, Disha Mittal

et al.

Nanomedicine, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 11

Published: April 7, 2025

Cancer cells display a distinctive defense mechanism against any exogenous moieties that renders all treatments inefficient. Glutathione, thiol tripeptide plays paradoxical role in cancer as intracellular glutathione (GSH) are voracious scavengers of free radicals produced by chemotherapy, generation reactive oxygen species (ROS) and nitrogen (RNS). show Warburg effect, wherein the GSH levels exceptionally enhanced to overcome oxidative stress created ROS/RNS production or other generated side products redox reactions. Therefore, resetting is essential maintain homeostasis for cell survival their proliferation trigger escalation levels. Nanotherapeutics have facilitated targeted delivery GSH-depleting agents combination with radiotherapy, novel therapeutic interventions including chemodynamic therapy (CDT), photodynamic (PDT), ferroptosis induction, sonodynamic (SDT), immunotherapy being explored. This review aims compile strategic cells, importance nanotherapeutics depletion target numerous forms programmed death (PCD), apoptosis, ferroptosis, necroptosis, autophagy.

Language: Английский

Citations

0

Nanocarriers for cutting-edge cancer immunotherapies DOI Creative Commons
Joyce Hu, Pooria Mohammadi Arvejeh,

S Bone

et al.

Journal of Translational Medicine, Journal Year: 2025, Volume and Issue: 23(1)

Published: April 15, 2025

Cancer immunotherapy aims to harness the body's own immune system for effective and long-lasting elimination of malignant neoplastic tissues. Owing advance in understanding cancer pathology immunology, many novel strategies enhancing immunological responses against various cancers have been successfully developed, some translated into excellent clinical outcomes. As one promising strategy next generation immunotherapies, activating multi-cellular network (MCN) within tumor microenvironment (TME) deploy multiple mechanisms action (MOAs) has attracted significant attention. To achieve this effectively safely, delivering or pleiotropic therapeutic cargoes targeted sites cancerous tissues, cells, intracellular organelles is critical, which numerous nanocarriers developed leveraged. In review, we first introduce payloads categorized according their predicted functions physicochemical structures forms. Then, nanocarriers, along with unique characteristics, properties, advantages, limitations, are introduced notable recent applications immunotherapy. Following discussions on targeting strategies, a summary each nanocarrier matching suitable provided comprehensive background information designing regimens.

Language: Английский

Citations

0

ROS-responsive cationic polymer containing ferrocene for gene delivery and enhanced tumor cell apoptosis/ferroptosis DOI
Qinfang Zhang,

Rui-Mo Zhao,

Lei Yu

et al.

European Polymer Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113953 - 113953

Published: April 1, 2025

Language: Английский

Citations

0