Profiling bone morphogenetic proteins and transforming growth factor-βs by hTGF-β3 pre-treated coral-derived macroporous bioreactors: the power of one

Biomaterials
Ugo RipamontiRaquel Duarte

Abstract

To study the expression profile of bone morphogenetic proteins and transforming growth factor-βs (BMPs and TGFβs), coral-derived calcium carbonate-based macroporous bioreactors with limited conversion to hydroxyapatite (7% HA/CC) were pre-loaded with and without 250 μg hTGF-β3 and implanted in the rectus abdominis of 3 non-human primates Papio ursinus euthanized on day 60. To investigate the required dose of hNoggin, a BMPs antagonist that controls the induction of bone formation, 7% HA/CC were pre-loaded with 150 μg hNoggin, with 125 μg hTGF-β3/150 μg hNoggin, with or without 125 μg hTGF-β3 and implanted in the r. abdominis of 3 additional animals euthanized on day 90. Quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) evaluated the expression' profile of BMP-2, BMP-3, BMP-4, BMP-6, BMP-7 and TGF-β1, -β2, and -β3 in tissue generating bioreactors as well as in the adjacent r. abdominis muscle. On day 60, 250 μg hTGF-β3 induced bone formation at the periphery of the implanted bioreactors only. On day 90, 125 μg hTGF-β3/treated bioreactors showed the induction of bone formation throughout the macroporous spaces. Untreated bioreactors induced bone, 4.11% vs. 2.00% on days 60 and 90, respectively. In hTGF-β3/tre...Continue Reading

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Aug 27, 2014·Biomaterials·Ugo RipamontiCarlo Ferretti

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Citations

Oct 29, 2015·BioMed Research International·Fernando Suárez-López Del AmoHom-Lay Wang
Nov 12, 2016·Injury·Ippokratis Pountos, Peter V Giannoudis
May 18, 2016·Scientific Reports·Hwajung ChoiEui-Sic Cho
Feb 23, 2018·Frontiers in Physiology·Ugo Ripamonti
Sep 21, 2017·Tissue Engineering. Part a·Ugo Ripamonti
Jan 20, 2021·The Journal of Craniofacial Surgery·Carlo Ferretti, Ugo Ripamonti

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