Extrahepatic Cholangiocarcinoma
Conditions
Keywords
Extrahepatic cholangiocarcinoma, ECC, VEGF signaling
Brief summary
The investigators study the VEGF signaling in ECC cell lines,patients and its mechanism in ECC growth, proliferation and apoptosis.
Detailed description
Several studies have documented the elevated expression of VEGF, VEGFR1 and VEGFR2 in cancer cell lines. Another study observed a sequential elevation of VEGF in low-grade dysplasia, high-grade dysplasia and early stage liver cancer. Clinical analyses have discovered the high expression of VEGF is correlated with tumor progression, vascular invasion, distal metastasis and poor prognosis. However, few studies have been conducted to investigate the VEGF signaling in ECC cells and its possible mechanism in regulating ECC growth.Therefore,we try to clarify the mechanism of VEGF signal in ECC growth,proliferation and apoptosis.
Interventions
PROCEDUREsurgical treatment
all the patients in the study must have been treated by the surgery at the first time and have been confirmed as 'complete section' by the post-surgery radiological image.
Sponsors
Guangdong Province, Department of Science and Technology
First Affiliated Hospital, Sun Yat-Sen University
Study design
Observational model
CASE_CONTROL
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
16 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
1. Extrahepatic cholangiocarcinoma patients diagnosed through biopsy; two or more dynamic imagine with a diagnosis of Extrahepatic cholangiocarcinoma 2. Child-Pugh A or B 3. well preserved renal and hematopoietic Function 4. receive surgical therapy 5. achieve complete section accessed by contrast-enhanced CT
Exclusion criteria
1. incomplete section 2. remote metastasis 3. Child-Pugh C 4. combination with other hepatobiliary disease 5. suffer from other tumors concurrently or in last five years
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| the variation of the quantity of VEGF signal pathway genes in normal liver tissue,peri tumor,tumor and metastasis. | the day when conducting surgery (day 1) | the sections would be collected as previously described.Western blot,immunohistochemistry,PCR would be conducted to find out the variation between the normal liver tissue and tumor,tumor and meta(if have). |
Countries
China
Outcome results
None listed