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Related Concept Videos

Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
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Stem Cell Culture

Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
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Labeling hESCs and hMSCs with Iron Oxide Nanoparticles for Non-Invasive in vivo Tracking with MR Imaging
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Stem cell tracking: toward clinical application in oncology?

Monica Mangoni1, Lorenzo Livi, Giampaolo Biti

  • 1UPRES EA 2710, Gustave Roussy Institute, Villejuif, France. m.mangoni@dfc.unifi.it

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|December 14, 2012
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Summary

Noninvasive cellular imaging tracks grafted cells, including cancer and stem cells, using direct or indirect labeling. Various in vivo imaging techniques offer complementary approaches for clinical translation.

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Area of Science:

  • Biomedical Imaging
  • Cellular Biology
  • Regenerative Medicine

Background:

  • Noninvasive cellular imaging is crucial for tracking grafted cells and monitoring their migration.
  • Applications include monitoring cancer cells and therapeutic stem cells in vivo.
  • Current methods involve direct labeling (tags) or indirect labeling (reporter genes).

Purpose of the Study:

  • To review current noninvasive cellular imaging modalities for tracking grafted cells.
  • To discuss the potential applications in cancer and stem cell research.
  • To evaluate the transferability of preclinical techniques to clinical practice.

Main Methods:

  • Overview of in vivo detection techniques: optical imaging, nuclear medicine, MRI, microCT, and ultrasound.
  • Comparison of direct and indirect cell labeling strategies.
  • Assessment of imaging modality properties: sensitivity, resolution, and toxicity.

Main Results:

  • Multiple imaging modalities exist, each with unique principles, properties, and limitations.
  • Complementarity of different imaging methods is highlighted.
  • Preclinical cellular imaging techniques have been successfully transferred to stem cell research.

Conclusions:

  • No single imaging modality is ideal; a combination is often necessary.
  • Noninvasive cellular imaging holds significant promise for clinical applications.
  • Clinical translation of these advanced imaging techniques is anticipated in the near future.