engleski

IMP3 protein is an independent prognostic factor of clinical stage II rectal cancer

Immunohistochemical level of IMP3-protein in patients with rectal cancer in clinical stage II (141), were correlated with sociodemographic, pathohistological and clinical indicators and duration of overall-survival and progression-free- survival. Vascular invasion was associated with IMP3-positive immunostaining (p<0.001). Vascular invasion ratio in the group of poorly- differentiated-tumors was 21 times higher than in the group of well-differentiated-tumors. IMP3- positive patients lived 2.2 times shorter than negative (p<0.001). Patients with well- differentiated-tumors lived 1.7 times longer than the subjects with poorly-differentiated-tumors (p<0.001). Patients without vascular invasion lived 2.7 times longer than the subjects with vascular invasion (p<0.001). The risk of mortality was 2.3 times higher for IMP3 positive patients (p=0.027) and 10.4 higher for the patients with vascular invasion (p<0.001). IMP3-negative participants had 2.3 times longer free interval without disease (p<0.001). The free interval without disease was 3.6 times longer in the group without vascular invasion (p<0.001). The risk of disease relapse in the IMP3 positive group was 5.3 times higher (p<0.001) and with vascular invasion was 8 times longer (p<0.001). The risk of disease relapse was 6.8 times higher in the group with vascular invasion (p<0.001). Patients with rectal cancer and high IMP3-protein level will have a shorter overall survival relative to patients without or with low levels of IMP3. The analysis of IMP3 expression by immunohistochemistry pointed IMP3 as an independent prognostic factor of clinical stage II rectal cancer.

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