title: LyP-1 ultrasonic microbubbles targeting to cancer cell as tumor bio-acoustics markers or drug carriers: targeting efficiency evaluation in, microfluidic channels.
abstract: Using ultrasonic contrast microbubbles as acoustic biomarkers and drug carrier vehicles by conjugating tumor specific antibody to microbubbles has shown great potential in ultrasonic tumor molecular imaging or drug-delivery and therapy. Microbubble probe targeting efficiency is one of the major challenges. In this study, we developed a novel method to evaluate the targeting capability and efficiency of microbubbles to cells, and more specifically, microbubbles binding LyP-1 (a cyclic nonapeptide acid peptide) target to cancer cell within a microfluidic system. The micro cell sieves within the microfludic channels could trap the tumor cells and enhance the microbubble's interaction with the cell. Assisted with the controllable fluid shear stress, the microbubble's targeting to the cell and the corresponding affinity efficiency could be quantitatively evaluated under a florescent microscope. The system provides a useful low-cost high efficient in vitro platform for studying microbubble-cell interaction for ultrasonic tumor molecular imaging or drug-delivery and therapy.
authors: Paul Lauterbur Center for Biomedical imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
authors: Xiang
authors: X
authors: Li
authors: Qiaofeng
authors: Q
authors: Jin
authors: Tan
authors: T
authors: Chen
authors: Baoyue
authors: B
authors: Zhang
authors: Rongqin
authors: R
authors: Zheng
authors: Zhanhui
authors: Z
authors: Wang
authors: Hairong
authors: H
authors: Zheng
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000378:metabolism*; D045744:Cell Line, Tumor; D016503:Drug Delivery Systems / Q000295:instrumentation / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D005434:Flow Cytometry / Q000295:instrumentation*; D006801:Humans; D045423:Microbubbles; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation*; D010456:Peptides, Cyclic / Q000493:pharmacokinetics* / Q000627:therapeutic use; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods*
chemical_list: C533969:LyP-1 peptide; D010456:Peptides, Cyclic