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Related Concept Videos

Adult Stem Cells01:33

Adult Stem Cells

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Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
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Embryonic Stem Cells00:58

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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Embryonic Stem Cells00:57

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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
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A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
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Biological Compatibility Profile on Biomaterials for Bone Regeneration
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Bone biomaterials and interactions with stem cells.

Chengde Gao1, Shuping Peng2,3, Pei Feng1

  • 1State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China.

Bone Research
|December 30, 2017
PubMed
Summary
This summary is machine-generated.

This review covers advanced bone biomaterials for tissue engineering, focusing on their properties, porous structures, and interactions with stem cells to improve bone repair. Future research directions are also proposed.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Bone biomaterials are crucial for bone repair, supporting cell functions and guiding tissue regeneration.
  • Developing ideal biomaterials with balanced biological and mechanical properties is a key challenge.
  • Creating optimal porous structures and inducing stem cell differentiation are critical for artificial-to-biological transformation.

Purpose of the Study:

  • To provide a comprehensive review of current bone biomaterials and their interactions with stem cells.
  • To discuss the characteristics, applications, and fabrication methods of various bone biomaterials.
  • To explore stem cell interactions, signaling pathways, and future research in bone tissue engineering.

Main Methods:

  • Review of existing literature on bone biomaterials (bioactive ceramics, biodegradable polymers, biodegradable metals).
  • Analysis of porous structure requirements for cell microenvironments.
  • Summary of stem cell types and their interaction mechanisms with biomaterials.

Main Results:

  • Detailed review of bioactive ceramics, biodegradable polymers, and metals for bone repair applications.
  • Discussion on the importance of biomaterial porosity for cell microenvironment.
  • Elucidation of stem cell interactions, including focal adhesion and osteogenic differentiation signaling pathways.

Conclusions:

  • Bone biomaterials are advancing, with significant progress in material properties and stem cell integration.
  • Optimizing porous structures and understanding stem cell signaling are key to successful bone regeneration.
  • Future research should focus on novel biomaterials and enhanced stem cell therapies for bone repair.