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Updated: Jun 16, 2026

Transfer of Manipulated Tumor-associated Neutrophils into Tumor-Bearing Mice to Study their Angiogenic Potential In Vivo
Published on: July 20, 2019
Roles of pleiotrophin in tumor growth and angiogenesis
Evangelia Papadimitriou1, Constantinos Mikelis, Evgenia Lampropoulou
1Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras, Greece. epapad@upatras.gr
Abstract:
Pleiotrophin (PTN) is a heparin-binding growth factor with diverse biological activities, the most studied of these being those related to the nervous system, tumor growth and angiogenesis. Although interest in the involvement of PTN in tumor growth is increasing, many questions remain unanswered, particularly concerning the receptors and the signaling pathways involved. In this review, we briefly introduce PTN, and summarize data on its involvement in tumor growth and angiogenesis, and on what is known to date concerning the receptors and pathways involved.
Insights
Pleiotrophin (PTN) promotes tumor growth and angiogenesis. This review summarizes PTN
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Pleiotrophin (PTN) is a heparin-binding growth factor.
- PTN exhibits diverse biological activities, notably in the nervous system, tumor growth, and angiogenesis.
- Growing interest exists in PTN's role in tumor progression, yet receptor and signaling pathway details remain unclear.
Purpose of the Study:
- To review the involvement of Pleiotrophin (PTN) in tumor growth.
- To summarize current knowledge on PTN's role in angiogenesis.
- To elucidate the receptors and signaling pathways associated with PTN in cancer.
Main Methods:
- Literature review of existing studies on Pleiotrophin (PTN).
- Analysis of data concerning PTN's function in tumor biology.
- Synthesis of information on PTN receptors and signaling cascades.
Main Results:
- Pleiotrophin (PTN) is implicated in promoting tumor growth.
- PTN plays a significant role in angiogenesis.
- Key receptors and signaling pathways mediating PTN's effects are being identified.
Conclusions:
- Pleiotrophin (PTN) is a critical factor in tumor growth and angiogenesis.
- Understanding PTN's receptors and pathways is essential for cancer research.
- Further investigation into PTN signaling may reveal therapeutic targets.
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