Engineered Leukocyte Biomimetic Colorimetric Sensor Enables High-Efficient Detection of Tumor Cells Based on Bioorthogonal Chemistry.
Min LiLanlan JiaAihong ZhuJiaqi LiJing LiXia LiuXiao-Yu XiePublished in: ACS applied materials & interfaces (2024)
Accurate detection of heterogeneous circulating tumor cells (CTCs) is critical as they can make tumor cells more aggressive, drug-resistant, and metastasizing. Although the leukocyte membrane coating strategy is promising in meeting the challenge of detecting heterogeneous CTCs due to its inherent antiadhesive properties, it is still limited by the reduction or loss of expression of known markers. Bioorthogonal glycol-metabolic engineering is expected to break down this barrier by feeding the cells with sugar derivatives with a unique functional group to establish artificial targets on the surface of tumor cells. Herein, an engineered leukocyte biomimetic colorimetric sensor was accordingly fabricated for high-efficient detection of heterogeneous CTCs. Compared with conventional leukocyte membrane coating, the sensor could covalently bound to the heterogeneous CTCs models fed with Ac 4 ManNAz in vitro through the synergy of bioorthogonal chemistry and metabolic glycoengineering, ignoring the phenotypic changes of heterogeneous CTCs. Meanwhile, a sandwich structure composed of leukocyte biomimetic layer/CTCs/MoS 2 nanosheet was formed for visual detection of HeLa cells as low as 10 cells mL -1 . Overall, this approach can overcome the dependence of conventional cell membrane biomimetic technology on specific cell phenotypes and provide a new viewpoint to highly efficiently detect heterogeneous CTCs.
Keyphrases
- circulating tumor cells
- induced apoptosis
- drug resistant
- cell cycle arrest
- circulating tumor
- label free
- real time pcr
- loop mediated isothermal amplification
- gold nanoparticles
- multidrug resistant
- peripheral blood
- poor prognosis
- cell death
- endoplasmic reticulum stress
- signaling pathway
- stem cells
- acinetobacter baumannii
- oxidative stress
- pi k akt
- hydrogen peroxide
- nitric oxide
- high resolution
- cell proliferation
- tissue engineering
- quantum dots
- single molecule
- cell therapy
- room temperature