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Related Concept Videos

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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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 Cell Therapy for Tissue Regeneration01:21

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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.
Types of Stem Cells used in Stem Cell Therapy
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Induced Pluripotent Stem Cells01:06

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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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iPS Cell Differentiation01:22

iPS Cell Differentiation

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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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EPS and iPS Cells in Disease Research01:21

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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Stem cell research, regenerative medicine and challenges.

Syed Muhammad Nazim1, Sarfraz Ahmad2

  • 1Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan.

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|February 14, 2023
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Stem cell research and regenerative medicine offer transformative potential for healthcare. However, significant challenges in stem cell selection, manufacturing, and regulation must be overcome for clinical translation.

Keywords:
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Area of Science:

  • Biomedical Sciences
  • Regenerative Medicine
  • Stem Cell Biology

Background:

  • Stem cell research has advanced significantly, offering potential for medical transformation due to cell renewal and differentiation capabilities.
  • Stem cells originate from various sources and exhibit a range of potencies, from unipotent to totipotent.
  • Regenerative medicine aims to repair and reconstruct tissues and organs, leveraging stem cell properties.

Purpose of the Study:

  • To review the advancements in stem cell research and regenerative medicine.
  • To highlight the potential applications of stem cell therapy.
  • To identify the challenges hindering the clinical translation of stem cell research.

Main Methods:

  • Literature review of stem cell research and regenerative medicine advancements.
  • Analysis of stem cell properties, sources, and therapeutic applications.
  • Identification and categorization of obstacles to clinical implementation.

Main Results:

  • Stem cells possess unique properties like self-renewal and differentiation, enabling potential medical breakthroughs.
  • Stem cell therapy can modulate cell behavior, generate tissues, and serve as pharmacological interventions.
  • Key challenges include ethical considerations, manufacturing complexities, genetic instability, unclear mechanisms of action, economic factors, and regulatory gaps.

Conclusions:

  • Stem cell research and regenerative medicine hold immense promise for transforming medicine.
  • Addressing ethical, manufacturing, regulatory, and scientific challenges is crucial for successful clinical application.