Implementation of a minimally invasive cell culture system to measure the regulation of inflammation in a school-based sample of adolescents

Dysregulated inflammation underlies many human diseases, and measures of responsiveness to activation, and sensitivity to inhibition, provide important information beyond baseline assessments of chronic inflammation. This study implements a simplified cell culture protocol in a school-based setting, using finger stick capillary blood collected from 333 adolescents (age 11.4-15.6 years) incubated with lipopolysaccharide (LPS). Median cytokine responses for IL6, IL1 beta, and TNF alpha were 61.9, 26.2, and 11.2 pg/mL, respectively. Samples were also incubated with LPS and glucocorticoid (GC) to measure GC sensitivity. Median responses were reduced in the presence of GC inhibition for IL6 (20.3 pg/mL), IL1 beta (10.5 pg/mL), and TNF alpha (3.3 pg/mL). Minimally invasive cell culture protocols provide novel opportunities for measuring inflammatory phenotypes in a wide range of non-clinical settings.