New Delhi, Dec 24 (NationPress) Chronic inflammation is likely to enhance colon stiffness, potentially accelerating the emergence and progression of early-onset colorectal cancer (CRC), as indicated by a recent study.

Colorectal cancers that are not linked to genetic syndromes and typically manifest after the age of 50 are categorized as sporadic or average-onset CRCs. The rates of incidence and mortality from average-onset CRC have seen a decline over the past 30 years.

Conversely, cases of early-onset CRC, affecting individuals under 50, have experienced a notable surge during the same timeframe.

The research, spearheaded by scientists from the University of Texas - Dallas and Southwestern Medical Center, offers potential avenues for the prevention and treatment of this serious subset of CRC.

“This pioneering research underscores the significant role of biomechanical forces in the development of early-onset CRC,” stated Jacopo Ferruzzi, Assistant Professor of Bioengineering at the University of Texas.

“Our findings demonstrate a consistent pattern across various scales, linking connective tissue rigidity to altered biochemical signaling in cancer cells.”

Published in the journal Advanced Science, the study involved analyzing intestinal tissue samples from patients who had undergone surgery to remove cancerous tumors. The researchers collected 19 samples from average-onset CRC patients and 14 from those with early-onset CRC, including both malignant tumors and their noncancerous margins.

Tests indicated that both the tumors and adjacent noncancerous tissues were significantly stiffer in early-onset CRC samples compared to those with average-onset CRC. This suggests that increased stiffness may precede the onset of early-onset CRC.

Investigating the reasons behind this heightened rigidity, the research team focused on collagen—a protein that becomes more prevalent and alters its structure due to scarring in both sample types.

They discovered that collagen in early-onset samples was denser, longer, more mature, and better aligned than that in average-onset samples, highlighting the impact of scarring in early-onset CRC tissue.

Additionally, when comparing gene activity in both sample types, researchers noted a significant rise in the expression of genes associated with collagen metabolism, blood vessel formation, and inflammation in early-onset CRC tissues, further confirming that scarring from chronic inflammation is responsible for tissue stiffness.