Title |
Protein typing of circulating microvesicles allows real-time monitoring of glioblastoma therapy
|
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Published in |
Nature Medicine, November 2012
|
DOI | 10.1038/nm.2994 |
Pubmed ID | |
Authors |
Huilin Shao, Jaehoon Chung, Leonora Balaj, Alain Charest, Darell D Bigner, Bob S Carter, Fred H Hochberg, Xandra O Breakefield, Ralph Weissleder, Hakho Lee |
Abstract |
Glioblastomas shed large quantities of small, membrane-bound microvesicles into the circulation. Although these hold promise as potential biomarkers of therapeutic response, their identification and quantification remain challenging. Here, we describe a highly sensitive and rapid analytical technique for profiling circulating microvesicles directly from blood samples of patients with glioblastoma. Microvesicles, introduced onto a dedicated microfluidic chip, are labeled with target-specific magnetic nanoparticles and detected by a miniaturized nuclear magnetic resonance system. Compared with current methods, this integrated system has a much higher detection sensitivity and can differentiate glioblastoma multiforme (GBM) microvesicles from nontumor host cell-derived microvesicles. We also show that circulating GBM microvesicles can be used to analyze primary tumor mutations and as a predictive metric of treatment-induced changes. This platform could provide both an early indicator of drug efficacy and a potential molecular stratifier for human clinical trials. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 8 | 40% |
United Kingdom | 3 | 15% |
Syrian Arab Republic | 1 | 5% |
Germany | 1 | 5% |
Peru | 1 | 5% |
South Africa | 1 | 5% |
France | 1 | 5% |
Unknown | 4 | 20% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 10 | 50% |
Scientists | 4 | 20% |
Practitioners (doctors, other healthcare professionals) | 4 | 20% |
Science communicators (journalists, bloggers, editors) | 2 | 10% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 10 | 2% |
Netherlands | 3 | <1% |
Canada | 3 | <1% |
Spain | 3 | <1% |
France | 2 | <1% |
Denmark | 2 | <1% |
Sweden | 1 | <1% |
United Kingdom | 1 | <1% |
Brazil | 1 | <1% |
Other | 3 | <1% |
Unknown | 557 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 138 | 24% |
Researcher | 104 | 18% |
Student > Master | 64 | 11% |
Student > Bachelor | 39 | 7% |
Student > Doctoral Student | 32 | 5% |
Other | 95 | 16% |
Unknown | 114 | 19% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 98 | 17% |
Biochemistry, Genetics and Molecular Biology | 80 | 14% |
Medicine and Dentistry | 77 | 13% |
Engineering | 69 | 12% |
Chemistry | 38 | 6% |
Other | 82 | 14% |
Unknown | 142 | 24% |