Navigation Links
Investigating the role of aging and poor nutrition on colon cancer: NIH awards Einstein $3.2 million grant
Date:5/8/2014

May 8, 2014 (BRONX, NY) Two risk factors getting older and eating poorly are implicated in more than 80 percent of colon cancer cases in developed countries. Now, researchers at Albert Einstein College of Medicine of Yeshiva University have received a $3.2 million grant from the National Institutes of Health (NIH) to investigate how aging and poor nutrition interact to cause the mutations responsible for driving colon cancer development.

Colon cancer is the second leading cause of cancer-related deaths in the United States (behind lung cancer) and the third most common cause of cancer in men and women. According to the Centers for Disease Control and Prevention, more than 130,000 people are diagnosed with the disease each year and more than 50,000 men and women will die from it. The vast majority of these cancers occur in people 50 or older.

"We know that age is a major risk factor for all types of cancer, and we also understand that lifelong dietary habits play an extremely important role in the development of colorectal cancers," said Leonard Augenlicht, Ph.D., professor of medicine and of cell biology at Einstein, director of the Biology of Colon Cancer Program at the NCI-designated Albert Einstein Cancer Center, and principal investigator on the grant.

Dr. Augenlicht has used mouse models to replicate how a Western-style diet affects the colon. Such diets are high in fat and low in levels of vitamin D, calcium and fiber. Not only did the diet cause a notable increase in the incidence of sporadic colon cancer in mice, but Dr. Augenlicht also saw ominous changes at the cellular level well before tumors developed.

Those changes were observed within intestinal crypts glands embedded in the wall of the small intestine. The crypts give rise to cells that absorb nutrients and that protect it from harmful substances, including the bacteria residing in the intestine. The crypts also house stem cells, which make daughter cells that travel from the crypts to repopulate and restore the intestine's mucosal lining.

Dr. Augenlicht's lab recently found that when mice are fed a Westernized diet, the crypts undergo an inflammatory response that seems to cause their stem cells to accumulate mutations. In addition, the daughter cells of these stem cells tend to stay within the crypt rather than travel into other portions of the intestinal lining which may be a sign that stem-cell mutations were accumulating in them. Aging is also implicated in mutations, so the combination of a Westernized diet and getting older would increase the probability of colon tumors arising from mutated intestinal cells.

The Einstein researchers will use several novel techniques to find how age and diet interact to produce the intestinal stem-cell mutations that appear to be key players in causing colon cancer. One of those techniques was developed by Jan Vijg, Ph.D, professor and chair of genetics, professor of ophthalmology & visual sciences, and the Lola and Saul Kramer Chair in Molecular Genetics at Einstein and a key co-investigator on the renewed grant. Known as single-cell whole-genome sequencing, this technique will determine both the quantity and types of mutations that affect stem cells of the intestinal crypts.

"Our aim is to better understand how tumors develop and to come up with new approaches for preventing colon cancer and detecting it early," said Dr. Augenlicht.


'/>"/>

Contact: Deirdre Branley
Deirdre.Branley@einstein.yu.edu
718-430-8806
Albert Einstein College of Medicine
Source:Eurekalert

Related biology news :

1. Investigating the link between Parkinsons and pesticides
2. More effective method of imaging proteins
3. Food science poised to help address needs of aging population
4. High-resolution atomic imaging of specimens in liquid by TEM using graphene liquid cell
5. Researcher awarded $1 million for stress-associated disease and aging research
6. Scientists uncover exciting lead into premature aging and heart disease
7. Scientists discover enzyme that could slow part of the aging process in astronauts -- and the elderly
8. Trial seeks improved lung-cancer screening by combining imaging and biomarkers
9. Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports
10. Canadian girl, 16, invents disease-fighting, anti-aging compound using tree particles
11. WSU researchers say genes and vascular risk modify effects of aging on brain and cognition
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/20/2016)... -- Securus Technologies, a leading provider of civil ... investigation, corrections and monitoring announced that after exhaustive ... the final acceptance by all three (3) Department ... (MAS) installed. Furthermore, Securus will have contracts for ... October, 2016. MAS distinguishes between legitimate wireless device ...
(Date:6/9/2016)... -- Paris Police Prefecture ... to ensure the safety of people and operations in several ... tournament Teleste, an international technology group specialised in ... that its video security solution will be utilised by ... safety across the country. The system roll-out is scheduled for ...
(Date:6/2/2016)... June 2, 2016   The Weather Company , an ... Ads, an industry-first capability in which consumers will be able ... to ask questions via voice or text and receive relevant ... Marketers have long sought an advertising solution ... can be personal, relevant and valuable; and can scale across ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... CA (PRWEB) , ... June 27, 2016 , ... ... for clinical trials, announced today the Clinical Reach Virtual Patient Encounter CONSULT ... care circle with the physician and clinical trial team. , Using the CONSULT module, ...
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... the funding of a Sponsored Research Agreement with ... tumor cells (CTCs) from cancer patients.  The funding ... CTC levels correlate with clinical outcomes in cancer ... data will then be employed to support the ...
(Date:6/24/2016)... Epic Sciences unveiled a liquid biopsy ... PARP inhibitors by targeting homologous recombination deficiency (HRD) ... test has already been incorporated into numerous clinical ... Over 230 clinical trials are investigating ... PARP, ATM, ATR, DNA-PK and WEE-1. Drugs targeting ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... of its second eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with ... in this eBook by providing practical tips, tools, and strategies for clinical researchers. ...
Breaking Biology Technology: