Identification of neutrophil-derived proteases and angiotensin II as biomarkers of cancer cachexia.
Br J Cancer
; 114(6): 680-7, 2016 Mar 15.
Article
em En
| MEDLINE
| ID: mdl-26954714
ABSTRACT
BACKGROUND:
Cachexia is a metabolic disorder characterised by muscle wasting, diminished response to anti-cancer treatments and poor quality of life. Our objective was to identify blood-based biomarkers of cachexia in advanced cancer patients. Hence, we characterised the plasma cytokine and blood cell mRNA profiles of patients grouped in three cohorts patients with cachexia, pre-cachexia (no cachexia but high CRP levels ⩾ 5 mg l⻹) and no cachexia (no cachexia and CRP < 5 mg l⻹).METHODS:
A total of 122 newly diagnosed cancer patients with seven cancer types were studied prior to their initial therapy. Plasma levels of 22 cytokines were quantified using the bio-plex technology. mRNAs isolated from whole blood and expression profiles were determined by the chip array technology and Ingenuity Pathway Analysis (IPA) software.RESULTS:
In comparison with non-cachectic individuals, both pre-cachectic and cachectic patients showed an increase (⩾ 1.5-folds) in mRNA expression of neutrophil-derived proteases (NDPs) and significantly elevated angiotensin II (Ang II) (P = 0.005 and P = 0.02, respectively), TGFß1 (P = 0.042 and P < 0.0001, respectively) and CRP (both P < 0.0001) in the plasma. Moreover, cachectic patients displayed a significant increase in IL-6 (P = 0.005), IL-8 (P = 0.001) and absolute neutrophil counts (P = 0.007).CONCLUSIONS:
Ang II, TGFß1, CRP and NDP are blood biomarkers for cancer cachexia. These findings contribute to early diagnosis and prevention of cachexia.
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Base de dados:
MEDLINE
Assunto principal:
Peptídeo Hidrolases
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Caquexia
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Angiotensina II
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Biomarcadores Tumorais
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Neoplasias
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Neutrófilos
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article