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22.06.2019 | Skeletal Biology and Regulation (M Forwood and A Robling, Section Editors) | Ausgabe 4/2019

Current Osteoporosis Reports 4/2019

Investigating Osteocytic Perilacunar/Canalicular Remodeling

Zeitschrift:
Current Osteoporosis Reports > Ausgabe 4/2019
Autoren:
Cristal S. Yee, Charles A. Schurman, Carter R. White, Tamara Alliston
Wichtige Hinweise
This article is part of the Topical Collection on Skeletal Biology and Regulation

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Abstract

Purpose of Review

In perilacunar/canalicular remodeling (PLR), osteocytes dynamically resorb, and then replace, the organic and mineral components of the pericellular extracellular matrix. Given the enormous surface area of the osteocyte lacuna-canalicular network (LCN), PLR is important for maintaining homeostasis of the skeleton. The goal of this review is to examine the motivations and critical considerations for the analysis of PLR, in both in vitro and in vivo systems.

Recent Findings

Morphological approaches alone are insufficient to elucidate the complex mechanisms regulating PLR in the healthy skeleton and in disease. Understanding the role and regulation of PLR will require the incorporation of standardized PLR outcomes as a routine part of skeletal phenotyping, as well as the development of improved molecular and cellular outcomes. Current PLR outcomes assess PLR enzyme expression, the LCN, and bone matrix composition and organization, among others.

Summary

Here, we discuss current PLR outcomes and how they have been applied to study PLR induction and suppression in vitro and in vivo. Given the role of PLR in skeletal health and disease, integrated analysis of PLR has potential to elucidate new mechanisms by which osteocytes participate in skeletal health and disease.

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Literatur
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