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In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
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Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
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Production of Extracellular Matrix Fibers via Sacrificial Hollow Fiber Membrane Cell Culture
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Muscle extracellular matrix scaffold is a multipotent environment.

Paola Aulino1, Alessandra Costa2, Ernesto Chiaravalloti3

  • 11. Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy ; 2. Calabrodental clinic, Biomedical Section, Maxillofacial Surgery Unit, Crotone, Italy.

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|April 22, 2015
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Skeletal muscle acellular scaffolds (MAS) demonstrate multipotency, adapting to their environment. This technique shows promise for musculo-skeletal tissue regeneration.

Keywords:
ECM scaffoldbonecartilageskeletal muscletissue engineering

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • The concept of scaffold multipotency is novel.
  • Understanding how acellular scaffolds interact with host environments is crucial for tissue regeneration.

Purpose of the Study:

  • To investigate the multipotency of skeletal muscle acellular scaffolds (MAS).
  • To explore the potential of MAS in musculo-skeletal tissue regeneration.

Main Methods:

  • Implantation of MAS at the interface of Tibialis Anterior/tibial bone and masseter muscle/mandible bone in a murine model.
  • Observation of cell colonization and tissue differentiation within the scaffolds.

Main Results:

  • MAS were colonized by muscle cells near host muscle tissue.
  • Bone-cartilaginous tissues formed near host bone tissue.
  • The surrounding environment significantly influenced cell homing and differentiation.

Conclusions:

  • Skeletal muscle acellular scaffolds exhibit multipotency, guided by the host environment.
  • MAS represent a promising new technique for musculo-skeletal tissue regeneration.