Application of anti-PDCD4 (Programmed Cell Death 4) antibody in preparation of detection reagent for predicting personalized medicine sensitivity of paclitaxel or derivative drug of paclitaxel

The invention discloses application of an anti-PDCD4 (Programmed Cell Death 4) antibody in preparation of a detection reagent for predicting personalized medicine sensitivity of paclitaxel or a derivative drug of paclitaxel. The variation of protein abundance of whole cells in tumor cells treated by paclitaxel is analyzed by using a quantitative proteomics technology, the results shows that paclitaxel reduces the expression level of PDCD4 and the sensitivity of the tumor cells to paclitaxel is in positive correlation with the expression level of PDCD4 in cells. PDCD4 in the tumor cells is subject to gene silencing or overexpression and the result further proves that the sensitivity of the cells to paclitaxel is in positive correlation with the expression level of PDCD4 in the cells. Meanwhile, researches on survival prognosis of clinical lung cancer patients shows that under the same paclitaxel combined adjuvant chemotherapy, the survival prognosis of patients with low expression level of PDCD4 is poor and th