Results 61 to 70 of about 46,344 (243)

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Differential expression of a BMP4 reporter allele in anterior fungiform versus posterior circumvallate taste buds of mice

open access: yesBMC Neuroscience, 2010
Background Bone Morphogenetic Protein 4 (BMP4) is a diffusible factor which regulates embryonic taste organ development. However, the role of BMP4 in taste buds of adult mice is unknown. We utilized transgenic mice with LacZ under the control of the BMP4
Barlow Linda A, Nguyen Ha M
doaj   +1 more source

Notch signaling-mediated osteocytic overexpression of BMP4 promotes osteogenic differentiation of bone marrow stromal cells

open access: yesDi-san junyi daxue xuebao, 2021
Objective To investigate the effect of bone morphogenetic protein 4 (BMP4) overexpression in MLO-Y4 osteocytes on osteogenic differentiation of bone marrow stromal ST2 cells through Notch signaling. Methods Ad-GFP or Ad-BMP4 infected MLO-Y4 cells were co-
XIE Zhengsong   +4 more
doaj   +1 more source

Wnt Signaling in Neural Crest Ontogenesis and Oncogenesis. [PDF]

open access: yes, 2019
Neural crest (NC) cells are a temporary population of multipotent stem cells that generate a diverse array of cell types, including craniofacial bone and cartilage, smooth muscle cells, melanocytes, and peripheral neurons and glia during embryonic ...
Hao, Hongyan   +4 more
core   +2 more sources

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan   +12 more
wiley   +1 more source

Inhibition of EZH2 Promotes Human Embryonic Stem Cell Differentiation into Mesoderm by Reducing H3K27me3. [PDF]

open access: yes, 2017
Mesoderm derived from human embryonic stem cells (hESCs) is a major source of the mesenchymal stem/stromal cells (MSCs) that can differentiate into osteoblasts and chondrocytes for tissue regeneration.
Aghaloo, Tara   +6 more
core   +5 more sources

Bone morphogenetic protein 4 rescues the bone regenerative potential of old muscle-derived stem cells via regulation of cell cycle inhibitors

open access: yesStem Cell Research & Therapy, 2022
Background Bone morphogenetic protein 4 (BMP4) promotes the osteogenic differentiation and the bone regenerative potential of muscle-derived stem cells (MDSCs).
Haizi Cheng   +7 more
doaj   +1 more source

An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto   +6 more
wiley   +1 more source

Bone morphogenetic protein 4 inhibits rat stem/progenitor Leydig cell development and regeneration via SMAD-dependent and SMAD-independent signaling

open access: yesCell Death and Disease, 2022
Bone morphogenetic protein 4 (BMP4) is an important member of the transforming growth factor-β superfamily. BMP4 is expressed in the Leydig cell lineage. We hypothesized that BMP4 might regulate the development of stem/progenitor Leydig cells.
Xiaoheng Li   +5 more
doaj   +1 more source

Generation of an expandable intermediate mesoderm restricted progenitor cell line from human pluripotent stem cells. [PDF]

open access: yes, 2015
The field of tissue engineering entered a new era with the development of human pluripotent stem cells (hPSCs), which are capable of unlimited expansion whilst retaining the potential to differentiate into all mature cell populations.
Brafman, David   +8 more
core   +3 more sources

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