title: High expression of CXCR4 and CXCR7 predicts poor survival in gallbladder cancer.
abstract: Chemokine receptors play a prominent role in cancer progression and metastasis. This study investigated whether the expression of CXC chemokine receptor types 4 and 7 (CXCR4 and CXCR7, respectively), determined immunohistochemically, was associated with clinicopathological characteristics  and postoperative survival in gallbladder cancer specimens from 72 patients. CXCR4 was detected in the cytoplasm and/or nucleus of gallbladder cancer cells, but CXCR7 was detected only in the cytoplasm. Expression of either CXCR7 or CXCR4 in the cytoplasm was associated with tumour stage.  Expression of nuclear CXCR4 was associated with lymph node metastases and lymphatic invasion. Cytoplasmic expression of CXCR4 and CXCR7 were each independent risk factors for worse postoperative survival. Further research is required to clarify the mechanisms involved in these associations  and to determine their potential prognostic and therapeutic implications.
authors: Department of Hepatobiliary Surgery, Affiliated Union Hospital, Fujian Medical University, Fuzhou, China.
authors: X
authors: X
authors: Yao
authors: L
authors: L
authors: Zhou
authors: S
authors: S
authors: Han
authors: Y
authors: Y
authors: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D005706:Gallbladder Neoplasms / Q000378:metabolism* / Q000401:mortality* / Q000473:pathology; D006801:Humans; D007124:Immunoenzyme Techniques; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011379:Prognosis; D054387:Receptors, CXCR / Q000378:metabolism*; D019718:Receptors, CXCR4 / Q000378:metabolism*; D015996:Survival Rate
chemical_list: C501896:ACKR3 protein, human; C527276:CXCR4 protein, human; D054387:Receptors, CXCR; D019718:Receptors, CXCR4