ArticleBiomaterials research2026
Fibroblast Growth Factor 2-Immobilized Biointerfaces Drive Exogenous Transforming Growth Factor β1-Independent Chondrogenesis of Human Mesenchymal Stem Cell and Ectopic Cartilage Tissue Formation.
Article in Biomaterials research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Articular cartilage regeneration remains challenging due to limited intrinsic repair capacity and the tendency of current human mesenchymal stem cell (hMSC)-based strategies to form fibrocartilage or undergo hypertrophy. Here, we present a defined biomaterial platform in which maltose-binding protein-fibroblast growth factor 2 (MBP-FGF2) is surface-immobilized to create a bioinstructive interface that directs in vitro hMSC chondrogenesis without exogenous transforming growth factor-β1 (TGF-β1). The immobilized FGF2 interface promotes spontaneous, scaffold-free spheroid assembly via FGFR1-heparan sulfate proteoglycan-mediated adhesion, providing localized and sustained signaling. Transcriptomic and molecular analyses revealed early activation of FGF- and TGF-β-related pathways, with up-regulation of SOX9, COL2A1, and aggrecan and suppression of COL1A1 and COL10A1. These effects were consistently observed in hMSCs derived from both human embryonic stem cells and human tonsil tissue. Upon subcutaneous implantation into immunodeficient mice, pre-differentiated spheroids generated ectopic cartilage tissue rich in type II collagen and aggrecan, even in the absence of TGF-β1. Taken together, these findings establish FGF2-immobilized biointerfaces as bioinstructive matrices that enable exogenous TGF-β-independent chondrogenesis and ectopic cartilage tissue formation, providing a defined and reproducible route for generating chondrogenic constructs for regenerative medicine.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.