Isolating Mineralized Bone and Bone Marrow MRNA from Transiliac Bone Biopsies Stored in a Stabilizing Solution: A Comparative Study

Overview

Journal Bone Rep

Date 2022 Oct 14

PMID 36238088

Authors

Henriette de Loor

Dieter Smout

Hanne Jorgensen

Catarina Meng

Amaryllis H Van Craenenbroeck

Pieter Evenepoel

Affiliations

Soon will be listed here.

Abstract

The molecular mechanisms underlying metabolic bone diseases, including renal osteodystrophy, are poorly understood. Transcriptomics are increasingly used to characterize biological molecular networks and prove promising in identifying therapeutic targets and biomarkers. A reliable method for obtaining sufficient amounts of high quality RNA from human bone biopsies is a prerequisite for the implementation of molecular diagnostics in clinical research and practice. The present study aimed to develop a simple and adequate method for isolating bone and bone marrow mRNA from transiliac bone biopsies. Several storage, separation, and extraction procedures were compared. The procedure was optimized in pig samples and subsequently validated in human samples. Appropriate amounts of mineralized bone and bone marrow mRNA of moderate to high quality were obtained from transiliac bone biopsies that were immersed in the stabilizing solution Allprotect Tissue Reagent at room temperature for up to 3 days prior to freezing. After thawing, bone marrow and mineralized bone were separated by a multistep centrifugation procedure and subsequently disrupted and homogenized by a bead crusher. Appropriate separation of mineralized bone and bone marrow was confirmed by discriminatory gene expression profiles.

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