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Socrates E. Papapoulos

Researcher at Leiden University Medical Center

Publications -  308
Citations -  24605

Socrates E. Papapoulos is an academic researcher from Leiden University Medical Center. The author has contributed to research in topics: Osteoporosis & Bone remodeling. The author has an hindex of 79, co-authored 306 publications receiving 23202 citations. Previous affiliations of Socrates E. Papapoulos include Leiden University.

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Sclerostin is a delayed secreted product of osteocytes that inhibits bone formation

TL;DR: In vivo evidence is provided for the first time to support the concept that osteocytes secrete sclerostin after they become embedded in a mineralized matrix to limit further bone formation by osteoblasts and propose that sclerOSTin production by osteocytes may regulate the linear extent of formation and the induction or maintenance of a lining cell phenotype on bone surfaces.
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Sclerostin Is an Osteocyte-expressed Negative Regulator of Bone Formation, But Not a Classical BMP Antagonist

TL;DR: It is shown here that SOST/sclerostin is expressed exclusively by osteocytes in mouse and human bone and inhibits the differentiation and mineralization of murine preosteoblastic cells (KS483) and its unique localization and action on osteoblasts suggest that sclerost in may be the previously proposed osteocyte-derived factor that is transported to osteoblast at the bone surface and inhibits bone formation.
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Bone morphogenetic proteins stimulate angiogenesis through osteoblast-derived vascular endothelial growth factor A

TL;DR: This study investigated whether bone morphogenetic proteins (BMPs) stimulate osteoblastogenesis and angiogenesis through the production of VEGF-A, and used the murine preosteoblast-like cell line KS483, which forms mineralized nodules in vitro.