Development of Granzyme B-targeted Smart Positron Emission Tomography Probes for Monitoring Tumor Early Response to Immunotherapy DOI
Jiayu Fu,

Hongjie Xi,

Shuyue Cai

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(29), P. 18910 - 18921

Published: July 13, 2024

Granzyme B is an immune-related biomarker that closely correlates with cytotoxic T lymphocytes (CTLs), and hence detecting the expression level of granzyme can provide a dependable scheme for clinical immune response assessment. In this study, two positron emission tomography (PET) probes [18F]SF-M-14 [18F]SF-H-14 targeting are designed based on intramolecular cyclization scaffold SF. respond to glutathione (GSH) conduct self-assemble into nanoaggregates enhance retention probe at target site. Both prepared high radiochemical purity (>98%) stability in PBS mouse serum. 4T1 cells cocultured lymphocytes, reach maximum uptake 6.71 ± 0.29 3.47 0.09% ID/mg 0.5 h, respectively, but they remain below 1.95 0.22 1.47 0.21% without coculture lymphocytes. vivo PET imaging shows tumor 4T1-tumor-bearing mice after immunotherapy significantly higher (3.5 times) than untreated group. The treated BEC was 4.08 0.16 3.43 0.12% ID/g, while 1.04 0.79 1.41 0.11% respectively. These results indicate both have great potential early evaluation efficacy.

Language: Английский

Fluorescent probes in autoimmune disease research: current status and future prospects DOI Creative Commons
Junli Chen, Mingkai Chen, Xiaolong Yu

et al.

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

Published: April 9, 2025

Autoimmune diseases (AD) present substantial challenges for early diagnosis and precise treatment due to their intricate pathogenesis varied clinical manifestations. While existing diagnostic methods strategies have advanced, sensitivity, specificity, real-time applicability in settings continue exhibit significant limitations. In recent years, fluorescent probes emerged as highly sensitive specific biological imaging tools, demonstrating potential AD research.This review examines the response mechanisms historical evolution of various types probes, systematically summarizing latest research advancements application autoimmune diseases. It highlights key applications biomarker detection, dynamic monitoring immune cell functions, assessment drug efficacy. Furthermore, this article analyzes technical currently encountered probe development proposes directions future research. With ongoing materials science, nanotechnology, bioengineering, are anticipated achieve higher sensitivity enhanced functional integration, thereby facilitating monitoring, innovative Overall, possess scientific significance value both related diseases, signaling a new era personalized precision medicine.

Language: Английский

Citations

0

Illuminating cancer with sonoafterglow DOI
Cheng Xu, Kanyi Pu

Nature Photonics, Journal Year: 2024, Volume and Issue: 18(4), P. 301 - 302

Published: April 1, 2024

Language: Английский

Citations

3

X-ray/γ-ray/Ultrasound-Activated Persistent Luminescence Phosphors for Deep Tissue Bioimaging and Therapy DOI

Yurong Wei,

Jie Wang

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(42), P. 56519 - 56544

Published: Oct. 14, 2024

Persistent luminescence phosphors (PLPs) can remain luminescent after excitation ceases and have been widely explored in bioimaging therapy since 2007. In bioimaging, PLPs efficiently avoid tissue autofluorescence light scattering interference by collecting persistent signals the end of excitation. Outstanding signal-to-background ratios, high sensitivity, resolution achieved with PLPs. therapy, continuously produce therapeutic molecules such as reactive oxygen species removing sources, which realizes sustained activity a single dose stimulation. However, most are activated ultraviolet or visible light, makes it difficult to reactivate vivo, particularly deep tissues. recent years, sources penetration activate PLPs, including X-ray, γ-ray, ultrasound. Researchers found that various inorganic organic be ultrasound, making these valuable imaging deep-seated tumors. These X-ray/γ-ray/ultrasound-activated not systematically introduced previous reviews. this review, we summarize recently developed ultrasound luminescence. The biomedical applications deep-tissue also discussed. This review provide instructions for design deep-tissue-renewable further promote phototheranostics, noninvasive biosensing devices, energy harvesting.

Language: Английский

Citations

3

Molecular Strategies for Constructing Epoxy‐Type Afterglow Probes in Disease Diagnosis and Treatment DOI

Maocheng Zuo,

Yidan Hu,

L. Xiao

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Abstract Epoxy‐type afterglow luminescence is a cascade reaction of photochemical defects caused as result the formation and release epoxy intermediates, exhibiting continuous phenomenon that remains intrinsic after excitation, with extremely impressive signal‐to‐background ratio (SBR) level in vivo. Afterglow based on this epoxy‐type mechanism ideally suited for applications developments diagnosis treatment biological diseases. In tutorial review, work aims to deeply elaborate mechanisms materials present application imaging Lastly, future perspectives potential challenges technology preclinical diagnostic, therapeutic, predictive analyses, well clinical translations are discussed.

Language: Английский

Citations

0

Development of Granzyme B-targeted Smart Positron Emission Tomography Probes for Monitoring Tumor Early Response to Immunotherapy DOI
Jiayu Fu,

Hongjie Xi,

Shuyue Cai

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(29), P. 18910 - 18921

Published: July 13, 2024

Granzyme B is an immune-related biomarker that closely correlates with cytotoxic T lymphocytes (CTLs), and hence detecting the expression level of granzyme can provide a dependable scheme for clinical immune response assessment. In this study, two positron emission tomography (PET) probes [18F]SF-M-14 [18F]SF-H-14 targeting are designed based on intramolecular cyclization scaffold SF. respond to glutathione (GSH) conduct self-assemble into nanoaggregates enhance retention probe at target site. Both prepared high radiochemical purity (>98%) stability in PBS mouse serum. 4T1 cells cocultured lymphocytes, reach maximum uptake 6.71 ± 0.29 3.47 0.09% ID/mg 0.5 h, respectively, but they remain below 1.95 0.22 1.47 0.21% without coculture lymphocytes. vivo PET imaging shows tumor 4T1-tumor-bearing mice after immunotherapy significantly higher (3.5 times) than untreated group. The treated BEC was 4.08 0.16 3.43 0.12% ID/g, while 1.04 0.79 1.41 0.11% respectively. These results indicate both have great potential early evaluation efficacy.

Language: Английский

Citations

3