Tackling Cancer
Spring 2017 | By Christopher Bobo
Annette Khaled, head of ΒιΆΉΣ³»΄«Γ½βs College of Medicine Cancer Research Division, is a member of one of four teams whose research is funded from proceeds of the AutoNation Cure Bowl. Thanks to the Breast Cancer Research Foundation and AutoNation, they will continue to receive funding every year as long as they continue to produce results.
This December, the Knights may have fallen to the Arkansas State Red Wolves at the Cure Bowl, but it was still a win for ΒιΆΉΣ³»΄«Γ½. Khaledβs team received $250,000, for a total of approximately $645,000 since 2015, toward their breast cancer research, allowing them to advance to the next stage of development.
Their first generation of treatment relies on a small peptide encapsulated in a nanoparticle. This particle is capable of going after the primary tumor, but is helpless to deal with any cancer thatβs spread elsewhere.
βThe nanoparticles that we use have to be recharacterized, restructured, retargeted to reach these tissues,β Khaled says. βBut a small molecule doesnβt. A small molecule will actually go everywhere in the body. So what we want to do with the funding β¦ is make that next generation of therapeutics that will hopefully have the versatility.β
A key component in their new plan is the research being conducted by scientist Alicja Copik.
Copikβs work focuses on white blood cells called natural killer cells. She likens them to the bodyβs front-line defense. These warriors stop cancers and other viruses before they make us sick, unlike T-cells, which attack a specific target.
Since the discovery of NK cells, theyβve been difficult to cultivate in a lab. However, research over the past decade has made NK cells easier to work with, providing a better understanding of their role.
NK cells βorchestrate the [other cells], meaning they kind of give the directions to other, more specialized troops to tell them, βI think something bad is happening here, we need a more direct immune system response,βββ Copik says.
Using nanoparticles to signal reproduction, Copikβs research has been able to increase the number of NK cells in a personβs body ten-thousandfold, significantly boosting the bodyβs natural defense system response from a few soldiers to a battalion.
Though barriers still exist, thereβs a chance for this cancer treatment to one day replace current methods.
βThere are so many treatments out there that will regress the tumor size,β Khaled says. βWe have many chemotherapeutics that will eliminate the tumor, but thereβs nothing really out there to keep the tumor from coming back.β
βAnd usually when the tumor comes back,β Copik adds, βit is already resistant to everything that you had, meaning you have nothing else to give to the patients to treat them.β
The combined treatments could be the key one-two punch to attack the initial tumor and any cancer thatβs spread to other parts of the body. Copikβs work on NK cells is currently planned for clinical trials by the end of 2017 for patients with leukemia.
Other research on NK cells has shown them to be a key part in the bodyβs fight against HIV, Ebola and influenza. This could suggest other applications for the treatment as an injection.