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Related Concept Videos

Gene Therapy00:59

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...
Gene Therapy00:59

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency disorders...
Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
iPS Cell Differentiation01:22

iPS Cell Differentiation

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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Related Experiment Video

Updated: Jun 17, 2026

Preparation and Gene Modification of Nonhuman Primate Hematopoietic Stem and Progenitor Cells
11:16

Preparation and Gene Modification of Nonhuman Primate Hematopoietic Stem and Progenitor Cells

Published on: February 15, 2019

Update on gene therapy for immunodeficiencies.

Donald B Kohn1

  • 1Departments of Microbiology, Immunology and Immunology and Pediatrics, University of California, Los Angeles, 290D Biomedical Sciences Research Building, 615 Charles E. Young Drive South, Los Angeles, CA 90095, USA. dkohn@mednet.ucla.edu

Clinical Immunology (Orlando, Fla.)
|January 15, 2010
PubMed
Summary
This summary is machine-generated.

Gene therapy offers a promising alternative to hematopoietic stem cell transplantation for primary immune deficiencies. While early trials showed success, new approaches are needed to improve safety and efficacy for treating these blood cell disorders.

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Area of Science:

  • Immunology
  • Hematology
  • Gene Therapy

Background:

  • Primary immune deficiencies (PID) result from blood cell defects.
  • Allogeneic hematopoietic stem cell transplantation (HSCT) is a current treatment.
  • Gene therapy using autologous HSC offers an alternative to avoid allogeneic HSCT risks.

Purpose of the Study:

  • To review the current state of gene therapy for PID.
  • To highlight successes and challenges in recent clinical trials.
  • To discuss emerging strategies for safer gene therapy.

Main Methods:

  • Review of clinical trials for PID gene therapy.
  • Analysis of outcomes in patients with X-linked severe combined immune deficiency (XSCID), adenosine deaminase (ADA)-deficient SCID, and chronic granulomatous disease (CGD).
  • Discussion of vector safety and gene correction techniques.

Main Results:

  • Gene therapy achieved immune restoration in XSCID, ADA-SCID, and CGD patients.
  • Severe complications, including leukoproliferative disorders, occurred due to integrated retroviral vectors.
  • Newer approaches are under development to mitigate these risks.

Conclusions:

  • Gene therapy is a viable option for PID treatment, offering immune restoration.
  • Safety concerns related to retroviral vectors necessitate further research.
  • Developing safer vectors and gene correction methods is crucial for effective PID gene therapy.