Featured Research

from universities, journals, and other organizations

New Knowledge About Bone Marrow Transplants Can Help Leukemia Patients

Date:
October 1, 2009
Source:
The Swedish Research Council
Summary:
Acute lymphatic leukemia is the most common form of blood cancer in children. Even though chemotherapy is improving, the cancer often returns. New research shows that cancer cells that have been exposed to chemotherapy and survived are less vulnerable to chemotherapy, and more aggressive as well. But this research also yielded discoveries that should be able to enhance our treatment of the disease.

Acute lymphatic leukemia is the most common form of blood cancer in children. Even though chemotherapy is improving, the cancer often returns. Johan Jansson’s research at Kalmar University in Sweden shows that cancer cells that have been exposed to chemotherapy and survived are less vulnerable to chemotherapy, and more aggressive as well. But this research also yielded discoveries that should be able to enhance our treatment of the disease.

Johan Jansson’s research shows that leukemia cells that have been exposed to chemotherapy and survived did not develop resistance against bone marrow transplants from a sibling, for example. At the same time, however, several important changes were observed in these cancer cells. On the one hand, they were less vulnerable to chemotherapy and, on the other, their growth rate increased.

Johan Jansson also identified several immunologically important genes that either increased or decreased when they had been exposed to a bone marrow transplant. Three of these genes were especially interesting in that they were involved in activating the immune defense and the killing of cancer cells. It was also shown that such a bone marrow transplant could have an inhibiting effect on the leukemia cells that also proved to be able to activate parts of the immune defense.

Finally, Johan Jansson studied whether it is possible to check the leukemia cells that remain after a bone marrow transplant. This was done by vaccinating mice with a mixture of ‘dead’ leukemia cells and immune cells from a donor. It was observed that the immune defense was activated to some degree, but that the mice did not live any longer as a result. On the other hand, it was seen that these mice had B cells that produced antibodies against leukemia cells. This knowledge could be further elaborated to develop and enhance the effects of a bone marrow transplant.


Story Source:

The above story is based on materials provided by The Swedish Research Council. Note: Materials may be edited for content and length.


Cite This Page:

The Swedish Research Council. "New Knowledge About Bone Marrow Transplants Can Help Leukemia Patients." ScienceDaily. ScienceDaily, 1 October 2009. <www.sciencedaily.com/releases/2009/09/090930102721.htm>.
The Swedish Research Council. (2009, October 1). New Knowledge About Bone Marrow Transplants Can Help Leukemia Patients. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2009/09/090930102721.htm
The Swedish Research Council. "New Knowledge About Bone Marrow Transplants Can Help Leukemia Patients." ScienceDaily. www.sciencedaily.com/releases/2009/09/090930102721.htm (accessed October 23, 2014).

Share This



More Health & Medicine News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins