Navigation Links
Cancer Stem Cells Alone spread Cancer

Researchers from Toronto, Canada have found that only a small portion of a tumor is responsible for spreading cancer and not all the cells as believed earlier. //

This is the fourth type of cancer in which stem cells have been found to be the source of the disease. Previously it was discovered in leukaemia, breast and brain cancers. This finding supports the view - stem cells may be responsible for all cancers.

This study will definitely help to find more effective treatment options according to the author John Dick, who is a senior scientist at University Health Network and also a professor of molecular and medical genetics at the University of Toronto.

Treating cancer stem cells alone will be a better way of dealing with the disease, says Dick. He compares cancer with a backyard weed. "You can keep cutting the leaves off the weed, but the weed will regrow," he explains. 'But if you cut the tap roots, the leaves will wither away. Killing the cancer stem cells is the equivalent of killing the root of the weed.'

Dick identified cancer stem cells in a type of leukemia ten years ago. Since then other researchers have discovered stem cells responsible in breast tumours. Two years ago, Peter Dirks, assistant professor in the University of Toronto's department of surgery discovered stem cells in brain tumours.

"This is a really important additional discovery in a really important human cancer," says Dirks, also a scientist at the Hospital for Sick Children.

In this research , human colon cancer cells were implanted into mice which degenerated immune systems. The researchers found that a small number of cells, which had a protein called CD133 on their surface, were active in spreading and maintaining cancer.

Their findings were published in the journal Nature.In the same issue of Nature, a group of Italian researchers also have announced a similar discovery .

In the second stud y, Ruggero De Maria of the Istituto Superiore di Sanita in Rome and colleagues found the same CD133 cells started tumours when injected into immune-deficient mice.

These two studies are the first to show that cancer stem cells are responsible for colon tumours.

That two independent research groups identified colon cancer stem cells reveals the power of this hypothesis, Dirks says.

"The big challenge now is to learn how to target and kill these cells," he says, “As other studies have shown that cancer stem cells in brain tumors are resistant to radiation and leukemic stem cells seem to be resistant to chemotherapy.”

To understand the molecular program of colon cancer stem cells seems to be their next step and also to find out if the cells have properties that make them resistant to chemotherapy. They hope to be funded by the new Ontario Institute of Cancer Research.

"Colon cancer is one of the most common forms of human cancer, but we don't know a lot about the genetics of how it starts," says Dick."It's important to try and understand these (cancer stem) cells."

Colon cancer is the fourth most dangerous cancer , killing 655,000 people every year, according to World Health Organisation.
SR
'"/>




Related medicine news :

1. Fibroids unlikely to Turn Cancerous
2. Virus Level could Predict Cervical Cancer Risk
3. Cancer Doctors Okays Controversial Prostate Therapy
4. Potential New Cancer Gene Identified
5. Consensus on "Combination Therapy" for Breast Cancer
6. Cancers of Colon & Rectum linked to Cigarette Smoking
7. Life Saving Cancer Drugs – From Chicken! Possible Says Dolly’ Creatos
8. The Cancer Rumour mill working over time
9. Cancer drugs in development nearly doubled since 1995
10. Radioactive Seeds used in Prostate Cancer treatment can migrate with the body
11. Cancer patients turning to Internet for information
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/27/2017)... ... 2017 , ... The threat of nuclear warfare has long plagued this world. ... the underground testing of nuclear weapons. Years later, when her co-workers began dying, Dot ... War Nuclear Testing,” Clayton exposes the critical decisions made by agencies involved in the ...
(Date:2/27/2017)... ... February 27, 2017 , ... Orange County dentist, ... inflammatory gum condition that occurs when the bacteria in plaque infect the gums and ... as a scaling and root planing or SRP, and can include surgical therapies if ...
(Date:2/27/2017)... ... , ... Miro is the ultimate smart media center that offers a fascinating ... shows and much more apps for user exploration. Its innovative acoustic design with premium ... x 720 provides crisp images with remarkable clarity and color. The WiFi connection enables ...
(Date:2/27/2017)... (PRWEB) , ... February 27, 2017 , ... ... customer threshold mark last week. In addition, Discount Power's RCE (Residential Customer Equivalent) ... LLC in March 2014. The company had 800 customers and 2,250 RCEs at ...
(Date:2/27/2017)... ... February 27, 2017 , ... Silicon Valley Hair ... announce a new informational post on robotic hair transplantation. San Francisco residents may ... transplant and Follicular Unit Transplantation (FUT) can sound similar. Either treatment can be ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... February 24, 2017 Following receiving ... Israel , s AMAR is a major ... 250 M w ound care market in ... BST for inclusion in the National Health Basket ...   E-QURE Corp. (OTCQB: EQUR), a leader ...
(Date:2/24/2017)... Research and Markets has announced the addition of ... report to their offering. ... The latest research Dry eye Drugs Price Analysis and Strategies - 2016, ... The research answers the following questions: ... attributes? How are they positioned in the Global Dry eye market? ...
(Date:2/24/2017)... SILVER SPRING, Md. , Feb. 23, 2017 ... today allowed marketing of the PhenoTest BC Kit, ... first test to identify organisms that cause bloodstream ... organism is likely to respond to (antibiotic sensitivity). ... it takes to provide this important information, which ...
Breaking Medicine Technology: