ArticlePharmaceuticals (Basel, Switzerland)2021
The Embryonic Chick Femur Organotypic Model as a Tool to Analyze the Angiotensin II Axis on Bone Tissue.
Article in Pharmaceuticals (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Palmitic Acid Alters Longitudinal Bone Growth While Enhancing Matrix Maturation in an Organotypic Bone Model.Biomolecules · 2026Article
- Repurposing losartan potassium against rheumatoid arthritis via transdermally-delivered leciplexes: Accentuated efficacy through modulation of angiotensin II/AT1R/AT2R axis.International journal of pharmaceutics: X · 2025Article
- Response of cultured primary gingival and periodontal ligament cells to angiotensin II and IL1β challenges.Brazilian oral research · 2025Article
- Repurposing sarecycline for osteoinductive therapies: an in vitro and ex vivo assessment.Journal of bone and mineral metabolism · 2023Article
- Ex Vivo Osteogenesis Induced by Calcium Silicate-Based Cement Extracts.Journal of functional biomaterials · 2023Article
- Hydrothermal Synthesis of Fluorapatite Coatings over Titanium Implants for Enhanced Osseointegration-An In Vivo Study in the Rabbit.Journal of functional biomaterials · 2022Article
- From Blood to Bone-The Osteogenic Activity of L-PRF Membranes on the Ex Vivo Embryonic Chick Femur Development Model.Materials (Basel, Switzerland) · 2021Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Activation of renin-angiotensin system (RAS) plays a role in bone deterioration associated with bone metabolic disorders, via increased Angiotensin II (AngII) targeting Angiotensin II type 1 receptor/Angiotensin II type 2 receptor (AT1R/AT2R). Despite the wide data availability, the RAS role remains controversial. This study analyzes the feasibility of using the embryonic chick femur organotypic model to address AngII/AT1R/AT2R axis in bone, which is an application not yet considered. Embryonic day-11 femurs were cultured ex vivo for 11 days in three settings: basal conditions, exposure to AngII, and modulation of AngII effects by prior receptor blockade, i.e., AT1R, AT2R, and AT1R + AT2R. Tissue response was evaluated by combining µCT and histological analysis. Basal-cultured femurs expressed components of RAS, namely ACE, AT1R, AT2R, and MasR (qPCR analysis). Bone formation occurred in the diaphyseal region in all conditions. In basal-cultured femurs, AT1R blocking increased Bone Surface/Bone Volume (BS/BV), whereas Bone Volume/Tissue Volume (BV/TV) decreased with AT2R or AT1R + AT2R blockade. Exposure to AngII greatly decreased BV/TV compared to basal conditions. Receptor blockade prior to AngII addition prevented this effect, i.e., AT1R blockade induced BV/TV, whereas blocking AT2R caused lower BV/TV increase but greater BS/BV; AT1R + AT2R blockade also improved BV/TV. Concluding, the embryonic chick femur model was sensitive to three relevant RAS research setups, proving its usefulness to address AngII/AT1R/AT2R axis in bone both in basal and activated conditions.
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Registered trials
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