, Volume 39, Issue 2, pp 120-124

Aberrant methylation of SOCS-1 was observed in younger colorectal cancer patients

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Background

Methods

We examined 74 colorectal cancer patients, using a methylation-specific polymerase chain reaction (PCR; MSP) for SOCS-1 CpG island in primary tumors.

Results

Aberrant methylation of the SOCS-1 CpG island was detected in 6 of the 74 (8%) colorectal cancer specimens. No corresponding normal colorectal tissues showed SOCS-1 methylation. We then analyzed the correlation between the clinicopathological features and SOCS-1 aberrant methylation and found that younger age was significantly related to SOCS-1 methylation (P = 0.048).

Conclusions

These findings suggested that SOCS-1 may act as a tumor suppressor in at least some colorectal cancers and that SOCS-1 methylation may be a particular phenomenon related to an early onset of colorectal cancer.