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Related Concept Videos

Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

3.8K
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.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
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Stem Cell Culture01:17

Stem Cell Culture

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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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Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
1.6K
Embryonic Stem Cells00:57

Embryonic Stem Cells

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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.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
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Embryonic Stem Cells00:58

Embryonic Stem Cells

25.8K
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.
25.8K
Induced Pluripotent Stem Cells01:06

Induced Pluripotent Stem 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).
Somatic...
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Related Experiment Video

Updated: May 2, 2026

Isolation and Culture of Human Adipose-Derived Stem Cells With an Innovative Xenogeneic-Free Method for Human Therapy
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Isolation and Culture of Human Adipose-Derived Stem Cells With an Innovative Xenogeneic-Free Method for Human Therapy

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Stem cell therapy without the cells.

Greg Maguire1

  • 1BioRegenerative Sciences, Inc; The SRM Molecular Foundry; San Diego, CA USA.

Communicative & Integrative Biology
|February 26, 2014
PubMed
Summary

Adult stem cell therapies are advancing rapidly, with new clinical trial centers funded. Beyond tissue regeneration, stem cells primarily heal through releasing therapeutic molecules, not just differentiation.

Area of Science:

  • Regenerative Medicine
  • Stem Cell Biology
  • Cellular Therapeutics

Background:

  • Adult stem cells are crucial for tissue repair and regeneration.
  • Stem cell therapy is increasingly used for conditions like heart attack and dementia.
  • Recent research highlights paracrine actions as a key therapeutic mechanism.

Purpose of the Study:

  • To explore the therapeutic mechanisms of adult stem cells.
  • To emphasize the role of paracrine signaling in stem cell therapy.
  • To discuss the composition and function of stem cell-released molecules (SRM).

Main Methods:

  • Review of recent studies on adult stem cell mechanisms.
  • Analysis of paracrine and autocrine signaling pathways.
  • Investigation of the stem cell secretome (SRM).
Keywords:
SRMantimicrobialgrowth factorsparacrinestem cellssystems therapeutictransplants

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Main Results:

  • Adult stem cells repair tissues primarily through paracrine actions, accounting for up to 80% of therapeutic effects.
  • The stem cell secretome (SRM) comprises hundreds of molecules, including proteins, microRNA, and exosomes.
  • SRM composition is dynamic, varying with cell type and environmental conditions.

Conclusions:

  • Stem cell therapy's efficacy relies significantly on paracrine mechanisms.
  • Understanding the stem cell secretome is vital for optimizing therapeutic strategies.
  • Future stem cell therapies may focus on harnessing SRM for targeted treatments.