Molecular Diagnostics

BJC Open article

British Journal of Cancer (2010) 103, 542–551. doi:10.1038/sj.bjc.6605810 www.bjcancer.com
Published online 20 July 2010

Detection of lung, breast, colorectal, and prostate cancers from exhaled breath using a single array of nanosensors

G Peng1,2,5, M Hakim1,5, Y Y Broza1,5, S Billan3, R Abdah-Bortnyak3, A Kuten3,4, U Tisch1,2 and H Haick1,2

  1. 1Department of Chemical Engineering, Technion – Israel Institute of Technology, Haifa 32000, Israel
  2. 2Russell Belrrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa 32000, Israel
  3. 3Oncology Division, Rambam Health Care Campus, Haifa 31096, Israel
  4. 4Bruce Rappaport Faculty of Medicine, Technion – Israel Institute of Technology, Haifa 31096, Israel

Correspondence: Dr H Haick, E-mail: hhossam@technion.ac.il

5These three authors contributed equally to this work.

Received 15 April 2010; Revised 16 June 2010; Accepted 21 June 2010
Advance online publication 20 July 2010

Top

Abstract

Background:

  

Tumour growth is accompanied by gene and/or protein changes that may lead to peroxidation of the cell membrane species and, hence, to the emission of volatile organic compounds (VOCs). In this study, we investigated the ability of a nanosensor array to discriminate between breath VOCs that characterise healthy states and the most widespread cancer states in the developed world: lung, breast, colorectal, and prostate cancers.

Methods:

  

Exhaled alveolar breath was collected from 177 volunteers aged 20–75 years (patients with lung, colon, breast, and prostate cancers and healthy controls). Breath from cancerous subjects was collected before any treatment. The healthy population was healthy according to subjective patient's data. The breath of volunteers was examined by a tailor-made array of cross-reactive nanosensors based on organically functionalised gold nanoparticles and gas chromatography linked to the mass spectrometry technique (GC-MS).

Results:

  

The results showed that the nanosensor array could differentiate between ‘healthy’ and ‘cancerous’ breath, and, furthermore, between the breath of patients having different cancer types. Moreover, the nanosensor array could distinguish between the breath patterns of different cancers in the same statistical analysis, irrespective of age, gender, lifestyle, and other confounding factors. The GC-MS results showed that each cancer could have a unique pattern of VOCs, when compared with healthy states, but not when compared with other cancer types.

Conclusions:

  

The reported results could lead to the development of an inexpensive, easy-to-use, portable, non-invasive tool that overcomes many of the deficiencies associated with the currently available diagnostic methods for cancer.

Keywords:

breath; volatile biomarker; nanosensor; GC-MS

Top

MORE ARTICLES LIKE THIS

These links to content published by NPG are automatically generated

NEWS AND VIEWS

Nanomedicine Sniffing out lung cancer

Nature Nanotechnology News and Views (01 Oct 2009)