New link between growth factors and early prostate cancer found

Nov 08, 2010

A new study by researchers from the University of Bristol, presented at the National Cancer Research Institute (NCRI) conference today, has found potential new biomarkers for very early prostate cancer in men with no symptoms of the disease.

The researchers, from the University’s School of Social and Community Medicine, investigated levels of insulin-like growth factors (IGFs) and IGF-binding proteins (IGFBPs) in whose cancer had been detected through PSA screening.

They compared 2,686 men with prostate cancer with 2,766 men who didn’t have cancer and found that specific growth factors (IGF-II) and proteins (IGFBP-2 and IGFBP-3) were all linked to an increased risk of the disease.

But they found there was no link between the best known growth factor (IGF-1) levels and a higher risk of prostate cancer.

The growth factors – IGFs and IGFBPs – regulate normal growth and development of organs and tissues, especially during foetal development and childhood.

Dr Mari-Anne Rowlands, study author from the University of Bristol, said: “It’s too early to be certain but these results suggest that we may have identified potential novel for very early prostate cancer in men with no symptoms. 

“Now we need more research to determine whether levels of these potential biomarkers predict which prostate cancers detected by screening might progress to become life-threatening. 

“We can then start to examine how diet or lifestyle factors might affect levels of these growth factors levels and whether changing these could reduce a man’s risk of prostate cancer, or for men with the disease, how quickly it might progress.”

Professor Malcolm Mason, Cancer Research UK’s prostate cancer expert, said: “Identifying men at greater risk of developing is a major priority at the moment, since it may be that offering them screening would have greater benefits than the very small benefits seen when the whole population is screened.  This study could be a very important step forward in identifying such men who should be screened.”

Explore further: CT radiation risk less than risk of examination indicator

add to favorites email to friend print save as pdf

Related Stories

Men who take aspirin have significantly lower PSA levels

Nov 16, 2008

The use of aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) is significantly associated with lower PSA levels, especially among men with prostate cancer, say researchers at Vanderbilt University.

Recommended for you

User comments : 0

More news stories

Do salamanders hold the solution to regeneration?

Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have ...

Practice makes perfect? Not so much

Turns out, that old "practice makes perfect" adage may be overblown. New research led by Michigan State University's Zach Hambrick finds that a copious amount of practice is not enough to explain why people ...

Study shows how bilinguals switch between languages

(Medical Xpress)—Individuals who learn two languages at an early age seem to switch back and forth between separate "sound systems" for each language, according to new research conducted at the University of Arizona.

Lab sets a new record for creating heralded photons

(Phys.org) —Entanglement, by general consensus of physicists, is the weirdest part of quantum science. To say that two particles, A and B, are entangled means that they are actually two parts of an inseparable ...

Protein study suggests drug side effects are inevitable

A new study of both computer-created and natural proteins suggests that the number of unique pockets – sites where small molecule pharmaceutical compounds can bind to proteins – is surprisingly small, meaning drug side ...