Zfp521 is a target gene and key effector of parathyroid hormone-related peptide signaling in growth plate chondrocytes.
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Zfp521 is a target gene and key effector of parathyroid hormone-related peptide signaling in growth plate chondrocytes. / Correa, Diego; Hesse, Eric; Seriwatanachai, Dutmanee; Kiviranta, Riku; Saito, Hiroaki; Yamana, Kei; Neff, Lynn; Atfi, Azeddine; Coillard, Lucie; Sitara, Despina; Maeda, Yukiko; Warming, Soren; Jenkins, Nancy A; Copeland, Neal G; Horne, William C; Lanske, Beate; Baron, Roland.
In: DEV CELL, Vol. 19, No. 4, 4, 2010, p. 533-546.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Zfp521 is a target gene and key effector of parathyroid hormone-related peptide signaling in growth plate chondrocytes.
AU - Correa, Diego
AU - Hesse, Eric
AU - Seriwatanachai, Dutmanee
AU - Kiviranta, Riku
AU - Saito, Hiroaki
AU - Yamana, Kei
AU - Neff, Lynn
AU - Atfi, Azeddine
AU - Coillard, Lucie
AU - Sitara, Despina
AU - Maeda, Yukiko
AU - Warming, Soren
AU - Jenkins, Nancy A
AU - Copeland, Neal G
AU - Horne, William C
AU - Lanske, Beate
AU - Baron, Roland
PY - 2010
Y1 - 2010
N2 - In the growth plate, the interplay between parathyroid hormone-related peptide (PTHrP) and Indian hedgehog (Ihh) signaling tightly regulates chondrocyte proliferation and differentiation during longitudinal bone growth. We found that PTHrP increases the expression of Zfp521, a zinc finger transcriptional coregulator, in prehypertrophic chondrocytes. Mice with chondrocyte-targeted deletion of Zfp521 resembled PTHrP(-/-) and chondrocyte-specific PTHR1(-/-) mice, with decreased chondrocyte proliferation, early hypertrophic transition, and reduced growth plate thickness. Deleting Zfp521 increased expression of Runx2 and Runx2 target genes, and decreased Cyclin D1 and Bcl-2 expression while increasing Caspase-3 activation and apoptosis. Zfp521 associated with Runx2 in chondrocytes, antagonizing its activity via an HDAC4-dependent mechanism. PTHrP failed to upregulate Cyclin D1 and to antagonize Runx2, Ihh, and collagen X expression when Zfp521 was absent. Thus, Zfp521 is an important PTHrP target gene that regulates growth plate chondrocyte proliferation and differentiation.
AB - In the growth plate, the interplay between parathyroid hormone-related peptide (PTHrP) and Indian hedgehog (Ihh) signaling tightly regulates chondrocyte proliferation and differentiation during longitudinal bone growth. We found that PTHrP increases the expression of Zfp521, a zinc finger transcriptional coregulator, in prehypertrophic chondrocytes. Mice with chondrocyte-targeted deletion of Zfp521 resembled PTHrP(-/-) and chondrocyte-specific PTHR1(-/-) mice, with decreased chondrocyte proliferation, early hypertrophic transition, and reduced growth plate thickness. Deleting Zfp521 increased expression of Runx2 and Runx2 target genes, and decreased Cyclin D1 and Bcl-2 expression while increasing Caspase-3 activation and apoptosis. Zfp521 associated with Runx2 in chondrocytes, antagonizing its activity via an HDAC4-dependent mechanism. PTHrP failed to upregulate Cyclin D1 and to antagonize Runx2, Ihh, and collagen X expression when Zfp521 was absent. Thus, Zfp521 is an important PTHrP target gene that regulates growth plate chondrocyte proliferation and differentiation.
KW - Animals
KW - Mice
KW - Gene Deletion
KW - Mice, Knockout
KW - Apoptosis/drug effects
KW - Biological Markers/metabolism
KW - Cell Differentiation/drug effects
KW - Cell Proliferation/drug effects
KW - Chondrocytes/drug effects/enzymology/metabolism/pathology
KW - Core Binding Factor Alpha 1 Subunit/metabolism
KW - Gene Expression Regulation, Developmental/drug effects
KW - Growth Plate/metabolism/pathology
KW - Histone Deacetylases/metabolism
KW - Hypertrophy
KW - Osteogenesis/drug effects
KW - Parathyroid Hormone-Related Protein/metabolism/pharmacology
KW - Repressor Proteins/metabolism
KW - Signal Transduction/drug effects
KW - Transcription Factors/metabolism
KW - Animals
KW - Mice
KW - Gene Deletion
KW - Mice, Knockout
KW - Apoptosis/drug effects
KW - Biological Markers/metabolism
KW - Cell Differentiation/drug effects
KW - Cell Proliferation/drug effects
KW - Chondrocytes/drug effects/enzymology/metabolism/pathology
KW - Core Binding Factor Alpha 1 Subunit/metabolism
KW - Gene Expression Regulation, Developmental/drug effects
KW - Growth Plate/metabolism/pathology
KW - Histone Deacetylases/metabolism
KW - Hypertrophy
KW - Osteogenesis/drug effects
KW - Parathyroid Hormone-Related Protein/metabolism/pharmacology
KW - Repressor Proteins/metabolism
KW - Signal Transduction/drug effects
KW - Transcription Factors/metabolism
M3 - SCORING: Journal article
VL - 19
SP - 533
EP - 546
JO - DEV CELL
JF - DEV CELL
SN - 1534-5807
IS - 4
M1 - 4
ER -