Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
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

Join For Free

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 3,000+ scientific posters on ePosters
  • More Than 4,400+ 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.

Related Content

Cancer’s Potential On-Off Switch
Researchers have proposed that an epigenetic switch could be a common mechanism behind the development of different types of cancer.
Thursday, May 15, 2014
Potential Epigenetic Mechanisms for Improved Cancer Therapy
BUSM researchers propose a new epigenetic hypothesis linked to tumor production and novel ideas about what causes progenitor cells to develop into cancer cells.
Friday, February 22, 2013
Scientific News
Releasing Cancer Cells for Better Analysis
A new device developed at the University of Michigan could provide a non-invasive way to monitor the progress of an advanced cancer treatment.
Releasing Cancer Cells for Better Analysis
A new device developed at the University of Michigan could provide a non-invasive way to monitor the progress of an advanced cancer treatment.
Apricot Kernels Pose Risk of Cyanide Poisoning
Eating more than three small raw apricot kernels, or less than half of one large kernel, in a serving can exceed safe levels. Toddlers consuming even one small apricot kernel risk being over the safe level.
Cell Transplant Treats Parkinson’s in Mice
A University of Wisconsin—Madison neuroscientist has inserted a genetic switch into nerve cells so a patient can alter their activity by taking designer drugs that would not affect any other cell.
Understanding Female HIV Transmission
Glowing virus maps points of entry through entire female reproductive tract for first time.
Genetic Markers Influence Addiction
Differences in vulnerability to cocaine addiction and relapse linked to both inherited traits and epigenetics, U-M researchers find.
Lab-on-a-Chip for Detecting Glucose
By integrating microfluidic chips with fiber optic biosensors, researchers in China are creating ultrasensitive lab-on-a-chip devices to detect glucose levels.
A lncRNA Regulates Repair of DNA Breaks in Breast Cancer Cells
Findings give "new insight" into biology of tough-to-treat breast cancer.
COPD Linked to Increased Bacterial Invasion
Persistent inflammation in COPD may result from a defect in the immune system that allows airway bacteria to invade deeper into the lung.
Detection of HPV in First-Void Urine
Similar sensitivity of HPV test on first void urine sample compared to cervical smear.
Scroll Up
Scroll Down
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
3,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,400+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!