Stem Cell Donation - Importance and Process in India

What is a Stem Cell Donor Registry?

A stem-cell donor registry is a database of people who have voluntarily agreed to potentially donate their blood-forming stem cells to a patient in need.

Their human leukocyte antigen (HLA) profile is recorded for comparison with patients looking for a suitable donor.

Who is Affected by the Lack of Donors?

For people living with blood cancers such as leukaemia and lymphoma, and disorders such as thalassaemia and aplastic anaemia, a stem-cell transplant can be a potentially curative treatment.

But finding a suitable donor can be the first challenge, with only about 25% to 30% of patients having a fully HLA-matched sibling donor.

By the numbers

• 50 patients are on the waitlist for bone marrow transplantation in Tamil Nadu.
• 25-30% of patients have a fully HLA-matched sibling donor.
• 5 donor registries are listed in India by the World Marrow Donor Association.

How Does the Registry Work?

A bone marrow registry allows eligible people to register as potential donors, with registration usually involving providing a cheek or buccal swab for HLA typing.

If a patient does not have a suitable family donor, the transplant team can search the registry for an unrelated donor, with the search extending to international donor networks.

What is the Importance of HLA Typing?

HLA markers are proteins that help the immune system distinguish the body’s own cells from foreign cells, with a closer HLA match improving the chances of a successful transplant and reducing complications.

Why is a Diverse Registry Important?

India has substantial genetic diversity across regions, communities, and ancestral groups, making it important to have a registry that reflects this diversity to improve the chances of finding a suitable donor.

Experts stress that registration should be an informed commitment, with sustained awareness campaigns and better representation of different regions and communities needed to improve the registry.

What are the Challenges in Creating a Stem Cell Donor Registry in India?

India does not have a single national stem-cell donor registry, and the existing registries have varying numbers of registered donors.

The challenge is not simply to create a larger registry, but one that better represents India’s population and improves the chances of finding a suitable donor when a patient needs one.

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How Can You Register as a Stem Cell Donor?

Registration does not involve donating stem cells, but rather providing a cheek or buccal swab for HLA typing.

If a person is identified as a potential match, the registry contacts the donor and further HLA testing and medical assessments are carried out.

What is the Future of Stem Cell Donation in India?

Experts say India needs sustained awareness campaigns, particularly through colleges, workplaces, and community organisations, along with better representation of different regions and communities.

Stronger coordination between registries and transplant centres and reliable donor follow-up are also important to improve the chances of finding a suitable donor.

What is the Role of the Government in Promoting Stem Cell Donation?

The government can play a crucial role in promoting stem cell donation by creating awareness campaigns, providing funding for registries, and implementing policies to support donors.

How Can You Help?

You can help by registering as a stem cell donor, spreading awareness about the importance of stem cell donation, and supporting organisations that work towards creating a diverse and robust registry.