Association between a microRNA binding site polymorphism in SLCO1A2 and the risk of delayed methotrexate elimination in Chinese children with acute lymphoblastic leukemia.

Organic anion-transporting polypeptide 1A2 (OATP1A2) is involved in the cellular uptake of methotrexate (MTX). Genetic variation in solute carrier organic anion transporter family member 1A2 (SLCO1A2, the coding gene of OATP1A2) has important implications for the elimination of MTX. We investigated the association between a microRNA (miRNA) binding site polymorphism (rs4149009 G > A) in the 3'-untranslated region (3'-UTR) of SLCO1A2 with the serum MTX concentrations in Chinese children with acute lymphoblastic leukemia (ALL).

Association between MTHFR microRNA binding site polymorphisms and methotrexate concentrations in Chinese pediatric patients with acute lymphoblastic leukemia.

Background: The pharmacokinetics and therapeutic response to methotrexate (MTX) display large variability in the treatment of acute lymphoblastic leukemia (ALL). The aim of the present study was to investigate the association of two microRNA (miRNA) binding site polymorphisms (rs3737966 G > A and rs35134728 DEL/TTC) in the 3'-untranslated region of MTHFR with serum MTX concentrations, in a Chinese pediatric population with ALL.

Methods: Genotyping for MTHFR rs3737966 and rs35134728 in 144 children with ALL was performed using the Sequenom MassArray system (Sequenom, San Diego, CA, USA).

Preparation of Rat Whole-kidney Acellular Matrix via Peristaltic Pump.

Purpose: To design a whole-kidney a cellular matrix scaffold using peristaltic pump perfusion and to ascertain the retention of extra cellular proteins by the scaffold.

Materials And Methods: Male Sprague-Dawley (SD) rats weighing 200-250 g were used. Intravenous catheters were inserted into the renal artery followed by perfusion of decellularization solution using a peristaltic pump.

Effects of a microRNA binding site polymorphism in SLC19A1 on methotrexate concentrations in Chinese children with acute lymphoblastic leukemia.

MicroRNAs (miRNAs) are a class of short non-coding RNA that can specially bind to the 3'-untranslated region of target mRNAs and regulate gene expression at the posttranscriptional level. This study investigated the effects of a miRNA binding site polymorphism (rs1051296) in solute carrier family 19, member 1 (SLC19A1) on serum methotrexate (MTX) concentrations in Chinese children with acute lymphoblastic leukemia (ALL). Genotyping for SLC19A1 rs1051296 G>T in 131 children with ALL was performed using the Sequenom MassArray system.

Influence of genetic polymorphisms of FPGS, GGH, and MTHFR on serum methotrexate levels in Chinese children with acute lymphoblastic leukemia.

Purpose: To investigate the correlation between common genetic polymorphisms of folylpolyglutamate synthase (FPGS), gamma-glutamyl hydrolase (GGH), and methylenetetrahydrofolate reductase (MTHFR) and serum levels of methotrexate (MTX) in Chinese children with acute lymphoblastic leukemia (ALL).

Methods: Ninety-one children with ALL who received high-dose MTX were recruited. The polymorphisms FPGS (rs1544105 G>A), GGH (rs3758149 C>T), and MTHFR (rs1801133 C>T) were genotyped through polymerase chain reaction-restriction fragment length polymorphism analysis.