Physical Math Seminar

Tuesday, November 28, 2023 at 2:30pm to 3:30pm

Building 2, 449
182 MEMORIAL DR, Cambridge, MA 02139

Speaker:  Pearson Miller  (Flatiron Institute)

Title:         Morphogens enable interacting supracellular phases that generate organ architecture

Abstract

 During vertebrate organogenesis, increases in morphological complexity are tightly coupled to morphogen expression. In this work, we studied how morphogens influence self-organizing processes at the collective or “supra”-cellular scale in avian skin. We made physical measurements across length scales, which revealed morphogen-enabled material property differences that were amplified at supracellular scales in comparison to cellular scales. At the supracellular scale, we found that fibroblast growth factor (FGF) promoted “solidification” of tissues, whereas bone morphogenetic protein (BMP) promoted fluidity and enhanced mechanical activity. Together, these effects created basement membrane–less compartments within mesenchymal tissue that were mechanically primed to drive avian skin tissue budding. Understanding this multiscale process requires the ability to distinguish between proximal effects of morphogens that occur at the cellular scale and their functional effects, which emerge at the supracellular scale.

 

 

 

Event Type

Conferences/Seminars/Lectures

Events By Interest

Academic

Events By Audience

Public, MIT Community

Events By School

School of Science

Website

https://math.mit.edu/pms/

Department
Department of Mathematics
Contact Email

daisymae@math.mit.edu

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