The frequencies of activated or proliferating CD8+ T cells peaked at 2 weeks postchallenge in the vaccinated and rechallenged animals, coinciding with reductions in viral titers. However, the magnitude of the responses did not correlate with outcome or sustained control of viral replication. In contrast, proliferation of the CD8+ T cells coexpressing HLA-DR either with or without CD38 expression was significantly higher at challenge in animals that rapidly cleared

HCV and remained so throughout the follow-up period. Conclusion: Our data suggest that the appearance of proliferating HLA-DR+/CD8+ T cells can be used as a predictor of a successfully primed memory immune response against HCV and as a marker of effective vaccination in clinical trials. (Hepatology 2014;59:803–813) Selleck Panobinostat “
“Cholangiocarcinoma patients Selleck HDAC inhibitor usually have poor treatment outcome and a high mortality rate. The role of adjuvant chemotherapy (AC) is controversial. Our study aimed to evaluate benefits of AC in resectable cholangiocarcinoma patients. A retrospective study included 263 patients who underwent curative resection in Srinakarind University Hospital. These patients had pathological reports showing a clear margin

(R0) or microscopic margin (R1) of lesion-free tissue. There were 138 patients who received AC. This group had a significantly lower mean age than patients not receiving adjuvant chemotherapy (NAC) selleck chemicals llc group (57.7 ± 8.5 vs 60.4 ± 9.0 years, P = 0.01).

The level of serum albumin above 3 g/dL was more common in AC group than the NAC one (87.7% vs 79.2%, P = 0.04). Patients who received AC had significantly longer overall median survival time (21.6 vs 13.4 months, P = 0.01). Patients with a combination of gemcitabine and capecitabine regimen had the longest survival time (median overall survival time of gemcitabine and capecitabine 31.5, 5-fluorouracil and mitomycin 17.3, 5-fluorouracil alone 22.2, capecitabine alone 21.6, and gemcitabine alone 7.9 months, P = 0.02). Benefits of AC were likely to be found in patients who had high-risk features, that is, high level of carbohydrate antigen 19-9, advanced stage, T4 stage, lymph node involvement, and R1 margin. AC significantly prolongs survival time in resectable cholangiocarcinoma patients, particularly in the high risk group. “
“Fluorodeoxyglucose (FDG), which allows the evaluation of glucose metabolism, is widely used for tumor diagnosis using positron emission tomography (PET). FDG-PET, which is used for the diagnosis of intrahepatic tumor lesions, shows high FDG accumulation in cholangiocellular carcinoma (CCC) and metastatic liver cancer. FDG-PET shows high FDG accumulation in moderately or poorly differentiated hepatocellular carcinoma (HCC) and is useful for the diagnosis of extrahepatic HCC metastases and recurrences.