2021
Loss of Sprouty Produces a Ciliopathic Skeletal Phenotype in Mice Through Upregulation of Hedgehog Signaling
HRUBÁ, Eva; Michaela KAVKOVÁ; Linda DALECKÁ; Miloš MACHOLÁN; Tomáš ZIKMUND et. al.Základní údaje
Originální název
Loss of Sprouty Produces a Ciliopathic Skeletal Phenotype in Mice Through Upregulation of Hedgehog Signaling
Autoři
HRUBÁ, Eva; Michaela KAVKOVÁ; Linda DALECKÁ; Miloš MACHOLÁN; Tomáš ZIKMUND; Miroslav VAŘECHA; Michaela BOSÁKOVÁ; Jozef KAISER; Pavel KREJČÍ; Mária HOVOŘÁKOVÁ a Marcela BUCHTOVÁ
Vydání
Journal of Bone and Mineral Research, American Society for Bone and Mineral Research, 2021, 0884-0431
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10605 Developmental biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.390
Kód RIV
RIV/00216224:14310/21:00119264
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000697316300001
EID Scopus
2-s2.0-85115147593
Klíčová slova anglicky
BONE QCT/mu CT; ANALYSIS/QUANTITATION OF BONE; GENETIC ANIMAL MODELS; MOLECULAR PATHWAYS - DEVELOPMENT; LIMB PATTERNING; BONE MODELING AND REMODELING; HEDGEHOG; CELL/TISSUE SIGNALING
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 26. 2. 2025 14:10, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The Sprouty family is a highly conserved group of intracellular modulators of receptor tyrosine kinase (RTK)-signaling pathways, which have been recently linked to primary cilia. Disruptions in the structure and function of primary cilia cause inherited disorders called ciliopathies. We aimed to evaluate Sprouty2 and Sprouty4 gene-dependent alterations of ciliary structure and to focus on the determination of its association with Hedgehog signaling defects in chondrocytes. Analysis of the transgenic mice phenotype with Sprouty2 and Sprouty4 deficiency revealed several defects, including improper endochondral bone formation and digit patterning, or craniofacial and dental abnormalities. Moreover, reduced bone thickness and trabecular bone mass, skull deformities, or chondromalike lesions were revealed. All these pathologies might be attributed to ciliopathies. Elongation of the ciliary axonemes in embryonic and postnatal growth plate chondrocytes was observed in Sprouty2(-/-) and Sprouty2(+/-)/Sprouty4(-/-) mutants compared with corre- sponding littermate controls. Also, cilia-dependent Hedgehog signaling was upregulated in Sprouty2/4 mutant animals. Ptch1 and Ihh expression were upregulated in the autopodium and the proximal tibia of Sprouty2(-/-)/Sprouty4(-/-) mutants. Increased levels of the GLI3 repressor (GLI3R) form were detected in Sprouty2/4 mutant primary fibroblast embryonic cell cultures and tissues. These findings demonstrate that mouse lines deficient in Sprouty proteins manifest phenotypic features resembling ciliopathic phenotypes in multiple aspects and may serve as valuable models to study the association between overactivation of RTK and dysfunction of primary cilia during skeletogenesis.
Návaznosti
| GA21-04178S, projekt VaV |
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| LQ1601, projekt VaV |
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| 90062, velká výzkumná infrastruktura |
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