Reference - Detail
|Igarashi H, Taniguchi H, Nosho K, Ishigami K, Koide H, Mitsuhashi K, Okita K, Takemasa I, Imai K, Nakase H.
|PRDM14 promotes malignant phenotype and correlates with poor prognosis in colorectal cancer.
|Clin Transl Oncol
BACKGROUND:Emerging evidence suggests that stemness in cancer cells is a cause of drug resistance or metastasis and is an important therapeutic target. PR [positive regulatory domain I-binding factor 1 (PRDI-BF1) and retinoblastoma protein-interacting zinc finger gene (RIZ1)] domain containing 14 (PRDM14), that regulates pluripotency in primordial germ cell, has reported the overexpression and function of stemness in various malignancies, suggesting it as the possible therapeutic target. However, to our knowledge, there have been no reports on the expression and function of PRDM14 in colorectal cancer (CRC). Therefore, we investigated the expression and the role of PRDM14 in CRC.
METHODS:We performed immunohistochemistry evaluations and assessed PRDM14 expression on 414 primary CRC specimens. Colon cancer cell lines were subjected to functional and stemness assays in vitro and in vivo.
RESULTS:We found that PRDM14 positive staining exhibited heterogeneity in the CRC primary tumor, especially at the tumor invasion front. The aberrant expression of PRDM14 at the invasion front was associated with lymph node metastasis and disease stage in patients with CRC. Furthermore, the multivariate analysis revealed high PRDM14 expression as an independent prognostic factor in the patients with Stage III CRC. Overexpression of PRDM14 enhanced the invasive, drug-resistant and stem-like properties in colon cancer cells in vitro and tumorigenicity in vivo.
CONCLUSION:Our findings suggest that PRDM14 is involved in progression and chemoresistance of CRC, and is a potential prognostic biomarker and therapeutic target in the CRC patients.
|Adenocarcinoma / genetics* Adenocarcinoma / metabolism Adenocarcinoma / pathology Adenoma / genetics Adenoma / metabolism Adenoma / pathology Aged Animals Antineoplastic Agents / pharmacology Cell Line, Tumor Cell Proliferation Cell Survival / drug effects Colorectal Neoplasms / genetics* Colorectal Neoplasms / metabolism Colorectal Neoplasms / pathology DNA-Binding Proteins / genetics* DNA-Binding Proteins / metabolism Drug Resistance, Neoplasm / genetics Female Fluorouracil / pharmacology Humans Immunohistochemistry Irinotecan / pharmacology Lymph Nodes / pathology Lymphatic Metastasis Male Mice, Nude Middle Aged Neoplasm Invasiveness Neoplasm Staging Neoplasm Transplantation Oxaliplatin / pharmacology Prognosis RNA, Messenger / metabolism RNA-Binding Proteins / genetics* RNA-Binding Proteins / metabolism Reverse Transcriptase Polymerase Chain Reaction Transcription Factors / genetics* Transcription Factors / metabolism Tumor Burden
|Human and Animal Cells
|COLO205(RCB2127) HCT116(RCB2979) LoVo(RCB1639)