RT Journal Article T1 IL8 and EDEM3 gene expression ratio indicates peripheral blood mononuclear cell (PBMC) quality. A1 Kofanova, Olga A1 Bellora, Camille A1 Quesada, Rocio Aguilar A1 Bulla, Alexandre A1 Panadero-Fajardo, Sonia A1 Keipes, Marc A1 Shea, Kathi A1 Stone, Mars A1 Lescuyer, Pierre A1 Betsou, Fay K1 PBMC K1 Preanalytical K1 Quality control AB Uncontrolled preanalytical variables can reduce the accuracy and reproducibility of downstream analytical results from peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from EDTA and citrate-anticoagulated blood samples, obtained from healthy subjects and patients with inflammatory and infectious conditions. PBMC-derived RNA samples were examined for gene expression changes induced by extended blood pre-centrifugation delays at 4 °C and RT. We used Taqman RTqPCR to evaluate the combination of two target genes for their "diagnostic performance" in identifying EDTA and citrate-anticoagulated PBMC samples with extended pre-centrifugation times. We established the PBMC preanalytical score, a gene expression metric to asses the PBMC quality related to the pre-centrifugation delay at room temperature for different anticoagulants. The PBMC preanalytical score measurement can identify: CONCLUSION: The proposed PBMC preanalytical score may enable objective PBMC sample qualification for downstream applications, which may be influenced by blood precentrifugation delays. YR 2018 FD 2018-11-26 LK http://hdl.handle.net/10668/13258 UL http://hdl.handle.net/10668/13258 LA en DS RISalud RD Apr 9, 2025