A Century-Old Tumor Sample Puzzle May Hold Clues to Younger Adults' Colorectal Cancer Surge
Colorectal cancer rates have been on the rise among adults under 55, with one in five cases now diagnosed at a younger age. This trend is alarming, especially considering that colorectal cancer has become the leading cause of death from cancer among men under 50 and the second most common among women in this age group.
Despite overall declining colorectal cancer rates, research suggests that increased consumption of ultra-processed foods, sedentary lifestyles, and rising obesity rates may all be contributing factors. However, the underlying reason for the surge in cancer rates among younger adults remains unclear.
To uncover the truth, scientists are turning to a unique resource - a century-old tumor tissue sample archive stored at London's St Mark's National Bowel Hospital. The hospital's basement archives contain tens of thousands of paraffin-preserved samples and gut bacteria from every patient treated for colorectal cancer, making it the most valuable resource globally.
The Institute of Cancer Research in the UK has been sent these samples for molecular DNA analysis to study how patterns of colorectal cancer have shifted over time. Researchers hope that analyzing these ancient tumor tissue samples will shed light on whether a particular type of gut bacteria, E. coli, is contributing to the rise in cases.
According to Trevor Graham of the Institute of Cancer Research, this "treasure trove" of bowel tissue samples may hold the key to understanding how patterns of colorectal cancer have changed over time. By testing these hypotheses, scientists aim to uncover new insights into the rising rates of colorectal cancer among younger adults.
Colorectal cancer rates have been on the rise among adults under 55, with one in five cases now diagnosed at a younger age. This trend is alarming, especially considering that colorectal cancer has become the leading cause of death from cancer among men under 50 and the second most common among women in this age group.
Despite overall declining colorectal cancer rates, research suggests that increased consumption of ultra-processed foods, sedentary lifestyles, and rising obesity rates may all be contributing factors. However, the underlying reason for the surge in cancer rates among younger adults remains unclear.
To uncover the truth, scientists are turning to a unique resource - a century-old tumor tissue sample archive stored at London's St Mark's National Bowel Hospital. The hospital's basement archives contain tens of thousands of paraffin-preserved samples and gut bacteria from every patient treated for colorectal cancer, making it the most valuable resource globally.
The Institute of Cancer Research in the UK has been sent these samples for molecular DNA analysis to study how patterns of colorectal cancer have shifted over time. Researchers hope that analyzing these ancient tumor tissue samples will shed light on whether a particular type of gut bacteria, E. coli, is contributing to the rise in cases.
According to Trevor Graham of the Institute of Cancer Research, this "treasure trove" of bowel tissue samples may hold the key to understanding how patterns of colorectal cancer have changed over time. By testing these hypotheses, scientists aim to uncover new insights into the rising rates of colorectal cancer among younger adults.