Related Experiment Video
Updated: Aug 9, 2026

11:35
Decellularization and Recellularization Methodology for Human Saphenous Veins
Published on: July 27, 2018
The placenta growth factor in skin angiogenesis
Teresa Odorisio1, Francesca Cianfarani, Cristina Maria Failla
1Laboratory of Molecular and Cell Biology, Istituto Dermopatico Dell'Immacolata, I.D.I.-I.R.C.C.S., Via Dei Monti di Creta, 104, 00167 Rome, Italy.
Journal of Dermatological Science
|October 12, 2005
Summary
Placenta growth factor (PlGF) promotes skin blood vessel formation and wound healing. PlGF delivery can create stable blood vessels without impacting lymphatic function, suggesting therapeutic potential.
Area of Science:
- Vascular biology
- Dermatology
- Cancer research
Background:
- Placenta growth factor (PlGF) is a vascular endothelial growth factor (VEGF) family member.
- PlGF promotes pathological angiogenesis and is upregulated during skin wound healing.
- PlGF expression in melanoma is linked to tumor growth.
Purpose of the Study:
- To investigate the role of PlGF in skin angiogenesis.
- To evaluate the therapeutic potential of PlGF for skin repair and vascularization.
Main Methods:
- Analysis of a transgenic mouse model with constitutive PlGF expression in keratinocytes.
- Delivery of PlGF to the skin using an adenoviral vector.
- Assessment of blood and lymphatic vessel formation and functionality.
Main Results:
- Constitutive PlGF expression induced robust skin angiogenesis during embryonic and post-natal development.
- Adenoviral PlGF delivery resulted in large, stable blood vessel formation.
- PlGF delivery did not impair lymphatic vessel functionality, unlike VEGF.
Conclusions:
- PlGF possesses potent angiogenic properties in the skin.
- PlGF can be a potential therapeutic agent for modulating skin angiogenesis.
- PlGF offers a distinct therapeutic avenue compared to VEGF for vascularization without lymphatic compromise.
Related Concept Videos
Mitogens and the Cell Cycle
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Mechanism of Angiogenesis
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Development of Blood Vessels
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...

