Modelling of migration and orientation of endothelial cells on micropatterned polymers
نویسندگان
چکیده
Understanding the cell migration on micropatterned polymers, as well as their orientation is a critical issue in tissue engineering, since it is the preliminary step in the blood vessel formation. In this paper, we derive an agent-based model to describe the migration and the orientation of endothelial cells seeded on bioactive micropatterned polymers. The model is obtained thanks to the experimental observations, and it provides numerical results that are quantitatively in accordance with the experimental data. Key-words: Tissue engineering; biomathematical modeling; agent-based model; endothelial cells; migration; differential equations ∗ Corresponding author: [email protected] ha l-0 07 95 23 8, v er si on 1 27 F eb 2 01 3 Modélisation de la migration et de l’orientation de cellules endothéliales Résumé : La compréhension de la migration et de l’orientation de cellules contrôlées géométriquement est un point crucial dans le contexte de l’ingénierie tissulaire. Il s’agit en effet de la première étape pour la formation de vaisseaux sanguins. Dans cet article, nous avons établi un modèle d’agent décrivant la migration et l’orientation de cellules endothéliales dispersées sur des plaques composées de polymères bioactifs. Ce modèle est basé sur des considérations expérimentales et nous avons pu obtenir des résultats quantitativement en accord avec ces experiences. Mots-clés : Ingénierie tissulaire ; modélisation bio-mathématique ; modèles d’agents, cellules endothéliales ; migration ; équation différentielles ha l-0 07 95 23 8, v er si on 1 27 F eb 2 01 3 Modelling of migration and orientation of endothelial cells on micropatterned polymers 3
منابع مشابه
Geometrical Microfeature Cues for Directing Tubulogenesis of Endothelial Cells
Angiogenesis, the formation of new blood vessels by sprouting from pre-existing ones, is critical for the establishment and maintenance of complex tissues. Angiogenesis is usually triggered by soluble growth factors such as VEGF. However, geometrical cues also play an important role in this process. Here we report the induction of angiogenesis solely by SVVYGLR peptide micropatterning on polyme...
متن کاملMicropatterned structural control suppresses mechanotaxis of endothelial cells.
Vascular endothelial cell migration is critical in many physiological processes including wound healing and stent endothelialization. To determine how preexisting cell morphology influences cell migration under fluid shear stress, endothelial cells were preset in an elongated morphology on micropatterned substrates, and unidirectional shear stress was applied either parallel or perpendicular to...
متن کاملAnti-angiogenic Effects of Metformin, an AMPK Activator, on Human Umbilical Vein Endothelial Cells and on Granulation Tissue in Rat
Objective(s)Metformin is well known for activation of AMP-activated protein kinase (AMPK). AMPK activation inhibits mammalian target of rapamycin (mTOR) as a key signaling process in cell proliferation. Recent epidemiological studies demonstrate that metformin lowers the risk for several types of cancer in diabetic patients. Concerning the critical role of angiogenesis in the incidence and prog...
متن کاملتمایز سلولهای دندریتیک مشتق از مونوسیت بر روی لایهای از سلولهای اندوتلیال بهعنوان لایه تغذیهکننده
Background: The innate and adaptive immune responses are dependent on the migration of leukocytes across endothelial cells. Dendritic cells (DCs) play an important role in the initiation of cellular immune responses during their migration from tissues into the lymph nodes where they interact with endothelial cells of lymphatic vessels. We investigated the effect...
متن کاملO 7: KCNK2 Regulates the Nanoscale Formation of Immune Docking Structures on Brain Endothelial Cells Under Autoinflammatory Conditions
KCNK2 was previously shown to regulate immune-cell trafficking into the central nervous system (CNS). Kcnk2-/- mice demonstrated a more severe disease course in experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis, due to an increased immune-cell migration into the CNS. An upregulation of the cellular adhesion molecules ICAM1 and VCAM1 on brain endothelial cells in K...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013