Contact guidance - modes of cell movement, Biology

Contact guidance - Modes of Cell Movement

Besides chemical / ionic factors that regulate cell movement in developing embryos, physical factors as well appear to play a role in morphogenetic processes. A phenomenon called contact guidance effects cell movements in cultures. The cell is affected by the physical surface over which it passes and is directed towards its location. Weiss (1934) demonstrated that cells can detect discontinuities in their substratum and migrate after aligning themselves together such features as fibers.

They could even move along scratches at the bottom of petridish. In a recent study Harris (1980) displayed that fibroblasts cultured on silicone rubber or collagen change the shape of the substrate through the stress generated by them, and move along such changed substrate fields. Contact guidance is assumed to be the cause for the migration of mesenchymal cells inside the fish fin.

Posted Date: 1/28/2013 7:46:05 AM | Location : United States







Related Discussions:- Contact guidance - modes of cell movement, Assignment Help, Ask Question on Contact guidance - modes of cell movement, Get Answer, Expert's Help, Contact guidance - modes of cell movement Discussions

Write discussion on Contact guidance - modes of cell movement
Your posts are moderated
Related Questions
Explain anterior pituitary gland secretes hormones The anterior pituitary gland secretes hormones that elevateĀ  the blood glucose and therefore antagonize the action of glucose

Alterations occurring in milk and milk products In the dairy industry, milk is commonly given heat treatment for a wide variety of purposes. Depending on the heating temperatur

Problem 1: What is Placebo and Nocebo? Describe the significance of Placebo in clinical trials. Definition of placebo and Nocebo Significance of Placebo in clinical t

Hydroxyapatite coating Hydroxyapatite coating has been recommended for clinical use. These implants are superior with respect to the degree and rate of fixation in the bone as

Why is the development of bipedalism considered to be a major advancement in human evolution?

Temperature - Estuaries Another important variable is temperature. The temperature of estuary keeps on fluctuating it heats up and cools down more rapidly under prevailin

Define Mini Nutritional Assessment (MNA) Tool? It is a comprehensive and simple tool, which is able to categorize the subjects into three different categories like well nourish

Improvement of Soil Aeration Soil organisms greatly improve soil structure and facilitate aeration. Root decay leaves the soil riddled with channels, and the burrowing of worm

Implant Mobility and Discomfort Implant mobility is an indication of the lack of osseointegration. Even if periimplant disease has progressed relatively far, implants may still

Determine the types of blood There are three types of blood cells. They are Red Blood Corpuscles (RBC), White Blood Corpuscles (WBC) or leucocytes and blood platelets or thromb