Buried alive: How osteoblasts become osteocytes Export

@article{citeulike:3479382, abstract = {During osteogenesis, osteoblasts lay down osteoid and transform into osteocytes embedded in mineralized bone matrix. Despite the fact that osteocytes are the most abundant cellular component of bone, little is known about the process of osteoblast-to-osteocyte transformation. What is known is that osteoblasts undergo a number of changes during this transformation, yet retain their connections to preosteoblasts and osteocytes. This review explores the osteoblast-to-osteocyte transformation during intramembranous ossification from both morphological and molecular perspectives. We investigate how these data support five schemes that describe how an osteoblast could become entrapped in the bone matrix (in mammals) and suggest one of the five scenarios that best fits as a model. Those osteoblasts on the bone surface that are destined for burial and destined to become osteocytes slow down matrix production compared to neighbouring osteoblasts, which continue to produce bone matrix. That is, cells that continue to produce matrix actively bury cells producing less or no new bone matrix (passive burial). We summarize which morphological and molecular changes could be used as characters (or markers) to follow the transformation process. Developmental Dynamics 235:176-190, 2006. {\copyright} 2005 Wiley-Liss, Inc.}, address = {Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada; Zoological Institute and Zoological Museum, University of Hamburg, Hamburg, Germany}, author = {Franz-Odendaal, Tamara A. and Hall, Brian K. and Witten, Eckhard P.}, citeulike-article-id = {3479382}, citeulike-linkout-0 = {http://dx.doi.org/10.1002/dvdy.20603}, citeulike-linkout-1 = {http://www3.interscience.wiley.com/cgi-bin/abstract/112137841/ABSTRACT}, doi = {10.1002/dvdy.20603}, journal = {Developmental Dynamics}, keywords = {buried, osteoblasts, osteocytes}, number = {1}, pages = {176--190}, posted-at = {2008-11-04 17:19:34}, priority = {2}, title = {Buried alive: How osteoblasts become osteocytes}, url = {http://dx.doi.org/10.1002/dvdy.20603}, volume = {235}, year = {2006} }

TY - JOUR ID - citeulike:3479382 L3 - citeulike-article-id:3479382 N2 - During osteogenesis, osteoblasts lay down osteoid and transform into osteocytes embedded in mineralized bone matrix. Despite the fact that osteocytes are the most abundant cellular component of bone, little is known about the process of osteoblast-to-osteocyte transformation. What is known is that osteoblasts undergo a number of changes during this transformation, yet retain their connections to preosteoblasts and osteocytes. This review explores the osteoblast-to-osteocyte transformation during intramembranous ossification from both morphological and molecular perspectives. We investigate how these data support five schemes that describe how an osteoblast could become entrapped in the bone matrix (in mammals) and suggest one of the five scenarios that best fits as a model. Those osteoblasts on the bone surface that are destined for burial and destined to become osteocytes slow down matrix production compared to neighbouring osteoblasts, which continue to produce bone matrix. That is, cells that continue to produce matrix actively bury cells producing less or no new bone matrix (passive burial). We summarize which morphological and molecular changes could be used as characters (or markers) to follow the transformation process. Developmental Dynamics 235:176-190, 2006. © 2005 Wiley-Liss, Inc. IS - 1 JF - Developmental Dynamics AD - Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada; Zoological Institute and Zoological Museum, University of Hamburg, Hamburg, Germany EP - 190 TI - Buried alive: How osteoblasts become osteocytes VL - 235 SP - 176 KW - buried KW - osteoblasts KW - osteocytes AU - Franz-Odendaal, Tamara AU - Hall, Brian AU - Witten, Eckhard PY - 2006/// UR - http://dx.doi.org/10.1002/dvdy.20603 ER -