| CCAT1 is a pro-cancer long non-coding RNA (lncRNA) most strongly linked to colorectal cancer. Its main importance is that it can support MYC activation, act as a miRNA sponge, promote proliferation and metastasis, and may contribute to therapy resistance. It is a plausible diagnostic/prognostic biomarker and possible therapeutic RNA target, but it is not yet a standard clinical target.
| Cancer type | Reported CCAT1 pattern | Main implication |
| ----------------- | -------------------------------- | ----------------------------------------- |
| Colorectal cancer | Strongly upregulated | Tumorigenesis, metastasis, MYC regulation |
| Gastric cancer | Upregulated in many studies | Proliferation, invasion, poor prognosis |
| HCC | Upregulated | Pro-growth / metastatic phenotype |
| Lung cancer NSCLC | Upregulated | Growth, poor prognosis, possible radioresistance|
| Breast cancer | Often upregulated | Proliferation, invasion, EMT-related effects|
| Ovarian cancer | Reported pro-metastatic role | Proliferation and metastasis |
| Other cancers | Reported in multiple tumor types | Usually oncogenic, but context may vary |
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