USE OF IN1-GHRELIN FOR THE DIAGNOSIS OF PROSTATE CANCER

The present invention relates to a diagnostic and/or prognostic method for the diagnosis and/or prognosis of cancer in a patient. Particularly, the present invention relates to diagnostic and/or prognostic methods for the diagnosis and/or prognosis of cancer which comprise quantifying the expression levels of In1-ghrelin in a plasma sample isolated from an individual; comparing the obtained levels with the expression levels of In1-ghrelin in a reference sample; and assigning the patients having expression levels of In1-ghrelin that are greater than and statistically significant with respect to the levels of the reference sample to the group of individuals at risk of having cancer. The present invention also provides a diagnostic method for the diagnosis of bladder and/or colon cancer which comprises quantifying the expression levels of In1-ghrelin, GOAT and/or GHS-R1b in tissue samples. The present invention also relates to an siRNA useful in a cancer treatment method.