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Freezing Injury in Mouse Masseter Muscle to Establish an Orofacial Muscle Fibrosis Model

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Heartening news for head muscle development.

Raphaëlle Grifone¹, Robert G Kelly

¹Developmental Biology Institute of Marseilles - Luminy, Inserm Avenir Group, UMR 6216 CNRS-Université de la Méditerranée, Campus de Luminy Case 907, 13288 Marseilles Cedex 9, France.

Trends in Genetics : TIG

|May 26, 2007

Summary

Branchiomeric craniofacial muscles have unique origins and development. Adjacent progenitor cells show overlapping genetic programs, leading to divergent myogenic fates in craniofacial development.

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Isolation and Characterization of Satellite Cells from Rat Head Branchiomeric Muscles

Isolation and Characterization of Satellite Cells from Rat Head Branchiomeric Muscles

Published on: July 20, 2015

Area of Science:

Developmental biology
Muscle biology
Craniofacial development

Background:

Branchiomeric craniofacial muscles possess distinct embryological origins, motor innervation, and myogenesis activators compared to other skeletal muscles.
Recent research highlights the proximity and shared genetic programming between craniofacial skeletal muscle progenitors and cardiac muscle progenitor cells.

Purpose of the Study:

To investigate the unique developmental pathways of branchiomeric craniofacial muscles.
To explore the relationship between craniofacial skeletal muscle and cardiac muscle progenitor cells.
To establish a new framework for studying craniofacial myogenesis.

Main Methods:

Comparative embryological analysis.
Genetic programming studies.
Myogenesis activation studies.

Main Results:

Branchiomeric craniofacial muscles exhibit unique developmental characteristics.
Craniofacial skeletal muscle progenitor cells are found adjacent to and share genetic programs with cardiac muscle progenitor cells.
Adjacent progenitor cells demonstrate divergent myogenic fates.

Conclusions:

The unique developmental origins and genetic programs of branchiomeric craniofacial muscles set them apart from other skeletal muscles.
The juxtaposition and overlapping genetic programs of craniofacial and cardiac muscle progenitor cells offer novel insights into myogenesis.
These findings provide a new paradigm for understanding and researching craniofacial myogenesis.