Tuesday, January 19, 2021
News

Killing cancer by unleashing the body's own immune system

   SocialTwist Tell-a-Friend    Print this Page   COMMENT

Washington | January 13, 2021 1:13:22 PM IST
A University of Missouri researcher might have found a new way to help the body's immune system get past that deception and destroy cancer.

"Normally, your body's immune cells are constantly on patrol to identify and destroy foreign entities in the body," said Yves Chabu, an assistant professor in the Division of Biological Sciences.

"Normal cells put up a 'don't-eat-me' molecular flag that is recognized by immune cells, thereby preventing the destruction of normal tissues. But some cancers have also developed the ability to mimic normal cells and produce this 'don't eat me' signal. As a consequence, the immune system fails to recognise cancer as a defective tissue and leaves it alone, which is bad news for the patient," added Chabu.

Immunotherapies are cancer drugs that essentially block the "don't-eat-me" signal coming from cancer and allow the immune system to kill it.

Chabu, whose appointment is in the College of Arts and Science, said while these immunotherapies work for certain types of cancers, prostate cancer is highly immunosuppressive, meaning the cancer's physical and molecular environments simply overpower the body's immune system.

But Chabu might have unlocked a solution with help from a more than 50-year-old strain of bacteria.

"Cancers are different in one individual to the next, even when they affect the same tissue. These interpersonal differences contribute to whether or not a particular therapy will effectively kill the cancer and help the patient. The bacteria itself is genetically pliable, therefore it can be genetically modified to overcome patient-specific therapeutic limits," Chabu said.

"Imagine a patient whose cancer isn't responding to traditional therapies and has no other treatment options. One can envision genetically modifying the bacteria such that it can unload therapeutics that specifically exploit that cancer's unique vulnerabilities and kill it," added Chabu.

In a previous study, scientists at the Cancer Research Center and the University of Missouri developed a genetically distinct and non-toxic strain of salmonella called CRC2631 to select and kill cancer cells.

CRC2631 was derived from another strain of salmonella that had been stored at room temperature for more than half a century. Now, scientists like Chabu are demonstrating the ability for CRC2631, which enthusiastically targets cancerous tumours, to be used to unleash the body's immune system against prostate cancer.

"Because CRC2631 preferentially colonises tumour cells, the effect is mainly localized to the tumour. The use of CRC2631 to design and deliver patient-tailored therapeutics foretells potential in precision medicine, or the ability to tailor a treatment to a specific patient," Chabu said.

Highlighting the promise of personalised health care and the impact of large-scale interdisciplinary collaboration, the University of Missouri System's NextGen Precision Health initiative is bringing together innovators from across the system's four research universities in pursuit of life-changing precision health advancements.

It's a collaborative effort to leverage the strengths of Mizzou and entire UM System toward a better future for Missouri's health. An important part of the initiative is the construction of the new NextGen Precision Health building, which will expand collaboration between researchers, clinicians and industry leaders in a state-of-the-art research facility. (ANI)

 
  LATEST COMMENTS ()
POST YOUR COMMENT
Comments Not Available
 
POST YOUR COMMENT
 
 
TRENDING TOPICS
 
 
CITY NEWS
MORE CITIES
 
 
 
MORE HEALTH NEWS
South Central Railway's frontline staff ...
UK reports 37,535 new Covid cases, 599 d...
Experts advise people to avoid alcohol d...
Research suggest simple, cheap test can ...
Fried food intake linked to heightened s...
After 2-day halt, vaccination drive to r...
More...
 
INDIA WORLD ASIA
Stalin first choice for CM's post in Tam...
Tejashwi demands President's rule in Bih...
Will defeat Mamata or else quit politics...
Lt Gen CP Mohanty in Visakhapatnam on 2-...
Rafale, vintage Dakota aircraft to be ma...
Government working for balanced developm...
More...    
 
 Top Stories
UK reports 37,535 new Covid cases, ... 
Garth Brooks set to perform at Bide... 
Security situation in Ethiopia's co... 
Equity indices on firm footing, rea... 
CPT Career Seminar - 22nd Jan, coun... 
Trump receives lowest job approval ... 
Indian Army organises five-day recr... 
Ind vs Aus, 4th Test: Visitors need...