Navigation Links
Moffitt researchers find potential new therapeutic target for treating non-small cell lung cancer
Date:2/14/2013

Researchers at Moffitt Cancer Center have found a potential targeted therapy for patients with tobacco-associated non-small cell lung cancer. It is based on the newly identified oncogene IKBKE, which helps regulate immune response.

The study appeared in the Feb. 13 online issue of Oncogene.

The IKBKE gene is part of a family of enzyme complexes involved in increasing cellular inflammation. IKBKE overexpression has been associated with breast and prostate cancers. However, it had not been linked to environmental carcinogen, such as tobacco smoke, until now.

Tobacco smoke is the strongest documented initiator and promoter of lung cancer. The traditional model holds that tobacco components promote carcinogenesis through a process that leads to DNA damage.

Recent studies have shown that tobacco smoke can also promote lung cancer through changes in the pathways that regulate cell proliferation and survival. This study explored identifying and understanding one of the signaling pathways in order to find potential drug targets to treat non-small cell lung cancer.

In this study, IKBKE was found to be induced by two tobacco carcinogens: nicotine and a nicotine-derived nitrosamine ketone found in tobacco smoke. Their findings suggest that IKBKE is a key molecule related to tobacco-induced lung cancer.

"Since IKBKE kinase is induced by tobacco, small molecular inhibitors of IKBKE could have a therapeutic drug potential for lung cancer," explained lead author Jin Q. Cheng, Ph.D., M.D., senior member of the Molecular Oncology Department at Moffitt.

Current treatments for non-small cell lung cancer include surgery, radiotherapy and chemotherapy. However, patients eventually develop resistance to treatment. There is a great need to better understand the molecular mechanism of resistance and develop new gene-targeted therapies that can circumvent resistance, said the authors.

In this study, the researchers also reported for the first time that IKBKE is a target of STAT3, a transcription factor that plays a key role in many cellular processes, such as cell growth and programmed cell death.

According to the researchers, STAT3 is frequently activated in various types of human cancers and, when activated, STAT3 increases IKBKE overexpression and protein levels. In non-small cell lung cancer, nicotine-induced IKBKE depends on STAT3.

The authors noted that the activation stage of STAT3 represents an attractive therapeutic potential because IKBKE is a STAT3 target. While IKBKE induces chemotherapy resistance, knocking down IKBKE sensitizes cancer cells to chemotherapy and reduces cancer cell survival.

"Since the IKBKE kinase overexpression is induced by tobacco smoke and IKBKE levels increase in response to nicotine and nicotine-derived nitrosamine ketone, this evidence can be potentially used to develop a non-small cell lung cancer intervention strategy that targets IKBKE," concluded Cheng.


'/>"/>

Contact: Kim Polacek
kim.polacek@moffitt.org
813-745-7408
H. Lee Moffitt Cancer Center & Research Institute
Source:Eurekalert

Related medicine news :

1. Moffitt Cancer Center researchers develop automated breast density test linked to cancer risk
2. Tumor cells engineer acidity to drive cell invasion, Moffitt Cancer Center researchers say
3. New drug improves survival in multiple myeloma relapse, Moffitt Cancer Center researchers say
4. Moffitt study shows smoking cessation more successful for cancer patients who quit before surgery
5. Hispanics leery of health care providers, often avoid cancer screenings, Moffitt study shows
6. Moffitt researchers say effective immunotherapy for melanoma hinges on blocking suppressive factors
7. Moffitt Cancer Center researchers identify novel metabolic programs driving aggressive brain tumors
8. Moffitt Researchers find genetic predictors of fatigue for some prostate cancer patients
9. Moffitt researcher investigates 2-drug synergy to treat drug-resistant chronic myeloid leukemia
10. Moffitt researchers identify unique immune gene signature across thousands of patients solid tumors
11. Moffitt Cancer Center researcher receives $2.1 million grant from NCI for answering Provocative Question
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... , ... June 26, 2016 , ... ... once they have been diagnosed with endometriosis. These women need a treatment plan ... require a comprehensive approach that can help for preservation of fertility and ultimately ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, ... Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms ... Final Cut Pro X . Simply select a ProHand generator and drag it above ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van Mitchell, ... at Work award to iHire in recognition of their exemplary accomplishments in worksite health ... annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum Heights. ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle ... chronic pain and the benefits of holistic treatments, Serenity Recovery Center of ... Sickle Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the red ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. Amanda ... orthodontic treatment. Dr. Cheng has extensive experience with all areas of orthodontics, including ... accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct to orthodontic treatment. ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 Roche (SIX: RO, ROG; OTCQX: ... its Elecsys BRAHMS PCT (procalcitonin) assay as a dedicated ... shock. With this clearance, Roche is the first IVD ... solution for sepsis risk assessment and management. ... and PCT levels in blood can aid clinicians in ...
(Date:6/23/2016)... Research and Markets has announced the addition of the ... offering. The current unmet ... for MedImmune to enter. The US ageing population creates a ... considerable growth for effective anti-influenza medications. The introduction of a ... development is still in its infancy. Key ...
(Date:6/23/2016)... PARK RIDGE, Ill. and INDIANAPOLIS ... caliber of students receiving a Lilly Diabetes Tomorrow,s Leaders ... hands. The 2016 scholarship winners, announced today online at ... refused to let type 1 diabetes stand in the ... Lilly Diabetes has supported the Foundation,s scholarship program since ...
Breaking Medicine Technology: