Circulating adipose stromal cells as a response biomarker in phase II energy balance trials of obese breast cancer survivors and high-risk women.
Breast Cancer Res Treat
; 176(2): 387-394, 2019 Jul.
Article
em En
| MEDLINE
| ID: mdl-31041685
ABSTRACT
PURPOSE:
Circulating adipose stromal cells (CASC) are thought to be increased in obesity and facilitate angiogenesis, and tumor metastases.METHODS:
CASC were identified from buffy coat peripheral blood mononuclear cells (PBMCs) by flow cytometry as CD34brightCD31- CD45- and CASC frequency was compared to adiposity measures in 33 women at increased risk for breast cancer. Feasibility of CASC as a response biomarker for a diet and exercise intervention in ten breast cancer survivors was then explored.RESULTS:
For 33 high-risk women, median CASC frequency was 9.7 per million PBMCs and trended positively with body mass index, fat mass index (FMI), and percent android fat. Correlation was significant when BMI was dichotomized at > versus < 35 kg/m2 (p = 0.02). For ten breast cancer survivors with a median BMI of 37 kg/m2, median CASC frequency was 16.4 per million PBMCs. In univariate analyses, change in BMI, total fat and visceral fat were significantly correlated with change in CASC frequency. On multivariate analysis, change in visceral adipose had the strongest association with change in CASC frequency (p < 0.00078).CONCLUSIONS:
The association between the reduction in visceral adipose tissue and the decrease in frequency of circulating adipose stromal cells suggests that the latter might be a useful biomarker in clinical trials of obese breast cancer survivors undergoing a weight loss intervention.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Biomarcadores
/
Tecido Adiposo
/
Obesidade
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
Breast Cancer Res Treat
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos