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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.
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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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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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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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Updated: Oct 13, 2025

Author Spotlight: Exploring the Lifespan Dynamics of Healthy Human Hematopoiesis
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Stem-cell clinics in the UK: a web-based study.

Sami Kamel1, Kevin R Smith1

  • 1Division of Health Science, School of Applied Sciences, Abertay University, Dundee, DD1 1HG, UK.

Regenerative Medicine
|November 11, 2021
PubMed
Summary
This summary is machine-generated.

Most UK clinics promote stem cell therapies online unethically. Websites often lack risk information, overstate effectiveness, and use questionable testimonials, raising ethical concerns for patients seeking regenerative medicine.

Keywords:
direct-to-consumerethicsinformed consentlegislationmarketingpolicystem cells

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Area of Science:

  • Regenerative Medicine
  • Bioethics
  • Digital Health Marketing

Background:

  • Stem cell treatments are increasingly marketed online by commercial clinics.
  • Concerns exist regarding the ethical promotion and patient information provided on clinic websites.
  • The UK has seen a rise in clinics offering stem cell therapies.

Purpose of the Study:

  • To investigate the nature and extent of web-based promotion of stem cell treatments.
  • To analyze the ethical considerations in the online marketing of stem cell therapies by UK clinics.
  • To identify common problematic practices in clinic websites.

Main Methods:

  • A web-based analysis of stem cell clinics operating in the UK was conducted.
  • Predefined variables were used to assess clinic websites.
  • Eligible clinics were analyzed based on preset criteria of ethical relevance.

Main Results:

  • A significant majority (79%) of UK clinics exhibited problematic online promotion.
  • Information regarding risks of adverse effects was frequently lacking.
  • Websites often featured unjustifiably optimistic effectiveness claims and questionable testimonials.

Conclusions:

  • Commercial stem cell clinics in the UK frequently employ ethically questionable marketing strategies online.
  • Patient information on stem cell therapies is often inadequate or misleading.
  • The study highlights a need for improved ethical standards in digital marketing for regenerative medicine.