From June 2008 to December 2012,video-assisted thoracoscopic surgery (VATS group) was performed for 24 cases of thymoma.Their operative procedures,postoperative complications,remission of myasthenia gravis (MG),perioperative mortality and oncological outcomes were compared with 19 cases of trans-sternal open thymectomy (OT group).Compared with OT group,VATS group had significantly shorter operation duration,less blood loss,shorter postoperative hospital stay,shorter chest tube duration and less chest drainage amount (P ＜ 0.05).The total rate of postoperative complications of VATS group was 4％ (1/24) and it was less than OT group (4/19) without significant difference (P ＞0.05).The effective remission rate of thymomatous MG was 7/9 in VATS group and it was similar to that in OT group (6/8,P ＞ 0.05).VATS group had a recurrent or metastatic rate of 0％ (0/23) and it was better than OT group with 1/17.And there was no significant inter-group difference (P ＞ 0.05).The total survival rate of VATS group was 100％ and it was similar to that of OT group (16/17,P ＞ 0.05).Thoracoscopic thymectomy is safe,feasible,efficacious and mini-invasive for thymoma.With fewer complications and a quicker recovery,it has similar short-term outcomes to conventional open thymectomy.

Objective To investigate the phenotype and the immunoregulatory function of CD8αα+TCRαβ+regulatory T cells in peripheral blood samples from mice.Methods The distribution profile and the phenotype of CD8αα+TCRαβ+regulatory T cells in C57BL/6 mice were detected by flow cytometry.The cytokines released by CD8αα+TCRαβ+regulatory T cells upon the stimulation with anti-CD3 antibody were analyzed by cytometric bead array.The in vitro immunosuppressive activity of CD8αα+TCRαβ+regulatory T cells on activated CD4+T cells was analyzed by using flow cytometry and carboxyfluorescein succinimidyl ester ( CFSE ) .An adoptive cell transfer assay was set up to evaluate the immunoprotective effects of CD8αα+TCRαβ+ regulatory T cells in a mouse model of experimental autoimmune encephalomyelitis ( EAE) .Results CD8αα+TCRαβ+regulatory T cells were detected in liver, spleen and peripheral blood samples collected from na?ve C57BL/6 mice.Compared with CD8αβ+TCRαβ+regulatory T cells, CD8αα+TCRαβ+regulatory T cells showed a memory-activated phenotype of CD25+CD122high CD44high CD62Llow CD69high NK1.1+DX5+.CD8αα+TCRαβ+regulatory T cells could produce IL-2 after 24 hours stimulation with anti-CD3 antibody, followed by producing IFN-γ, TNF-α, IL-4, IL-17A and traces of IL-6 and IL-10. In vitro, CD8αα+TCRαβ+regulatory T cells specifically suppressed the proliferation of activated CD4+T cells ( P<0.01 ).Moreover, they could delay the onset of EAE in mice and reduce clinical score (P<0.01).Conclusion CD8αα+TCRαβ+regulatory T cells were a unique population with immunoregula-tory function, which could be used as a potential therapeutic target in the treatment of autoimmune disease.

The histopathological growth patterns (HGPs) of colorectal cancer (CRC) liver metastasis reflect the complicated and varied interactions between tumor cells and host microenvironment. Exploring the tumor vascular and immunological features of HGPs, the relationship between HGPs and anti-tumor treatment efficacy, and HGPs prediction methods may have potential clinical aplication value for making optimal treatment strategies, evaluating patients' prognosis, and monitoring disease progression.

Massive transfusion protocol (MTP) is a programmatic procedure for massive blood transfusions, which is an important means of patient blood management (PBM) for trauma and massive hemorrhage patients. MTP can be initiated in a variety of modes, including the McLaughlin, ABC and TASH scoring systems and the mode depending on the patient′s hemorheology. After MTP has been activated, blood components should be injected as soon as possible. Generally, red blood cells should be injected first, followed by plasma and platelets injected proportionally. MTP should be based on good damage control measures and good hemostatic treatment, and should try to avoid the waste of blood components.This article reviews the progress of research on MTP in the above aspects.