کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
877494 911030 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improving interstitial transport of macromolecules through reduction in cell volume fraction in tumor tissues
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Improving interstitial transport of macromolecules through reduction in cell volume fraction in tumor tissues
چکیده انگلیسی

Interstitial transport of large molecules and nanoparticles is an important concern in nanomedicine-mediated cancer treatment. To that end, the current study was proposed to improve the transport through enlargement of extracellular space by treating tumors with hypertonic solution of mannitol and cytotoxic agents (e.g., ethacrynic acid [ECA]), which could effectively shrink and kill cells, respectively. In the study, the improvement in interstitial penetration of dextran was investigated ex vivo using rat fibrosarcoma tissues sectioned into 600 μm slices. Experimental data showed that the hypertonic solution was more effective than ECA for improving interstitial penetration of dextran with molecular weights ranging from 4000 to 2,000,000. The extent of improvement depended on the size of dextran molecules and the time when the treatment was applied. Results from the study suggested that increases in both size and connectedness of interstitial pathways were important for improvement of interstitial transport of large molecules and nanoparticles.From the Clinical EditorThis study reports on the optimization of interstitial transport both for large molecules and nanoparticles in nanomedicine-mediated cancer treatment. The study demonstrates that hypertonic solutions could efficiently lead to cancer cell shrinkage and more so than the applied cytotoxic agent thereby improving transport of chemotherapeutic entities.

Graphical AbstractInterstitial transport of macromolecules and nanoparticles in tumors can be improved through enlargement of extracellular space. In this study, the enlargement was achieved by treating tumor tissues with hypertonic solution of mannitol or a cytotoxic agent that could effectively shrink and kill cells. The treatments increased both the uniformity of distributions and the total amount of macromolecules diffused into tumor tissues.Figure optionsDownload high-quality image (159 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nanomedicine: Nanotechnology, Biology and Medicine - Volume 8, Issue 7, October 2012, Pages 1088–1095
نویسندگان
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