Corporate Banner
Satellite Banner
Stem Cells, Cellular Therapy & Biobanking
>
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Study Shows Potential of Differentiated iPS Cells in Cell Therapy without Immune Rejection

Published: Wednesday, January 30, 2013
Last Updated: Wednesday, January 30, 2013
Bookmark and Share
Boston University School of Medicine study shows that tissues derived from iPS cells in an experimental model were not rejected when transplanted back into genetically identical recipients.

The study, published online in Cell Stem Cell, demonstrates the potential of utilizing iPS cells to develop cell types that could offer treatment for a wide range of conditions, including diabetes, liver and lung diseases, without the barrier of immune rejection.

Ashleigh Boyd, DPhil, and Neil Rodrigues, DPhil, the study’s senior authors, are assistant professors of dermatology at BUSM and researchers at the Center for Regenerative Medicine (CReM) at Boston University and Boston Medical Center (BMC). They also are lead investigators at the National Institutes of Health’s Center of Biomedical Research Excellence (COBRE) at Roger Williams Medical Center, a clinical and research affiliate of BUSM.

iPS cells can be developed from adult cell types, such as skin or blood, by returning them to a stem cell state using genetic manipulation. iPS cells are capable of maturing (differentiating) into all the specific cell types in the body, making them a powerful tool for biological research and a source of tissues for transplantation based therapies. Given that iPS cells can be made in a patient-specific manner, there should be great potential for them to be transplanted back into the same patient without rejection. Yet a study published in Nature in 2011 demonstrated that iPS cells transplanted in the stem cell state were rejected in genetically identical recipients.

“The Nature study provocatively suggested that tissues derived from patient-specific iPS cells may be immunogenic after transplantation. However, it never directly assessed the immunogenicity of the therapeutically relevant cell types that could be utilized in regenerative medicine and transplantation,” said Rodrigues.

The BUSM researchers evaluated this matter by taking adult cells from an experimental model and deriving iPS cells from them. They then differentiated the iPS cells into three cell types: neuronal (nerve); hepatocytes (liver); and endothelial (blood vessel lining) cells. These three cell types represent each of the three germ layers present during embryonic development – mesoderm, ectoderm and endoderm. Cells from these layers differentiate and ultimately develop into the body’s tissue and organ systems. Using experiments to mirror the potential clinical use of patient-specific iPS cells in cell therapy, the team transplanted each of the differentiated cells into a genetically identical experimental model and found no signs of an elevated immune response or indications of rejection.

The study results suggest that using patient-specific iPS cells should overcome issues of immune rejection in transplantation, which will be a significant problem for potential embryonic stem cell-derived therapies. Immune rejection in transplantation is treated clinically by immunosuppressive drugs but they can have serious side-effects, including the risk of developing cancer.

“If the use of immunosuppressive drugs can be avoided, as may be the case for patient-specific iPS cell based therapies, it would be preferable. Our results are very promising and future work should be directed at assessing whether tissues derived from human iPS cells will similarly lack immunogenicity,” said Boyd.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More than 3,700+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
The Mending Tissue - Cellular Instructions for Tissue Repair
NUS-led collaborative study identifies universal mechanism that explains how tissue shape regulates physiological processes such as wound healing and embryo development.
Tissue Bank Pays Dividends for Brain Cancer Research
Checking what’s in the bank – the Brisbane Breast Bank, that is – has paid dividends for UQ cancer researchers.
iPS Cells Discover Drug Target for Muscle Disease
Researchers have designed a model that reprograms fibroblasts to the early stages of their differentiation into intact muscle cells in a step towards a therapeutic for Duchenne muscular dystrophy.
Engineered Hot Fat Implants Reduce Weight Gain
Scientists at UC Berkeley have developed a novel way to engineer the growth and expansion of energy-burning “good” fat, and then found that this fat helped reduce weight gain and lower blood glucose levels in mice.
Transplanted Stem Cells Can Benefit Retinal Disease Sufferers
Tests on animal models show that MSCs secrete growth factors that suppress causes of diabetic retinopathy and macular degeneration.
MRI Scanners Can Steer Therapeutics to Specific Target Sites
Scientists from the University of Sheffield have discovered MRI scanners, normally used to produce images, can steer cell-based, tumour busting therapies to specific target sites in the body.
Team Finds Early Inflammatory Response Paralyzes T Cells
Findings could have enormous implications for immunotherapy, autoimmune disorders, transplants and other aspects of immunity.
Early Detection of Lung Cancer
The University of Manchester has signed a collaboration agreement with Abcodia to perform proteomics studies on a cohort of non-small cell lung cancer cases from the UKCTOCS biobank, with the aim of discovering new blood-based biomarkers for earlier detection of the disease.
Researchers Identify Drug Candidate for Skin, Hair Regeneration
Formerly undiscovered role of protein may lead to the development of new medications that stimulate hair and skin regeneration in trauma or burn victims.
Basis for New Treatment Options for a Fatal Leukemia in Children Revealed
Detailed molecular analyses allow new insights into the function of tumour cells and options for new treatments.
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!