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The distribution of peripheral blood lymphocyte subsets were compared between patients with colorectal cancer and healthy controls.The number of natural killer(NK) cells and CD8+T cells and the percentage of naive CD4+T cells were all decreased significantly in patients.On the contrary,the percentages of memory CD4+T cells,HLA-DR+ CD8+ T cells and CD38+ CD8+ T cells were significantly increased.It suggests that the tumor killing effect of cytotoxic lymphocytes in peripheral blood is impaired in patients with colorectal cancer,whereas the immune response is over stimulated.
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Objective To compare the influence degree of laparoscopic operation and open operation on peripheral blood T lymphocyte subsets and Th1Th2 in patients with severe acute pancreatitis.Methods 54 patients who underwent surgical treatment in our hospital from February 2013 to December 2014 were selected as the subjects, 27 patients with severe acute pancreatitis who were treated with open operation as group A , 27 cases who were treated with laparoscopic operation at the same time were selected as group B , and then the peripheral blood T lymphocyte subsets and serum Th1Th2 indexes of two groups before the operation and at first,third and seventh day after the operation were respectively detected, then the detection results of two groups were compared.Results The peripheral blood T lymphocyte subsets and serum Th1Th2 indexes of group B at first, third and seventh day after the operation were all significantly better than those of group A , the difference was statistically significant ( P<0.05 ) , and the detection results of group A and group B at third day after the operation were worse than those at other time , the difference was statistically significant (P<0.05).Conclusion The influence of laparoscopic operation and open operation on T lymphocyte subsets and Th1Th2 in peripheral blood of patients with severe acute pancreatitis, the adverse effects of laparoscopic operation on the above indicators were relatively small.
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Objective To observe the response of tumor patient’s peripheral blood T-lymphocyte subset following CT guided per-cutaneous argon-helium cryoablation.Methods 122 patients with advanced of hepatocarcinoma or renal cell carcinoma undergone CT guided percutaneous argon-helium cryoablation.The percentage of peripheral blood CD3 + ,CD4 + ,CD8 + T-lymphocyte subset and the proportion of CD4 +/CD8 + T-lymphocyte were monitored at 2 h before and 20 h after the cryoablation respectively.Results The percentage of peripheral blood CD3+ ,CD4+ and CD3+ ,CD8+ T-lymphocyte were significantly increased after cryoablation,(measured by matched t-test,P<0.05).The ratio of CD4 +/CD8+ T-lymphocyte cells had an increase of 0.130(P =0.069).Conclusion The percentage of blood T-lymphocyte subset in patients with advanced hepatocellular carcinoma or renal cell carcinoma is increased significantly,when they are treated by using CT guided percutaneous cryoablation.The patient's tumor specific immunity is enhanced by CT guided percutaneous cryoablation.
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Objective To investigate the clinical efficacy of adefovir dipivoxil in antiviral treatment of chronic hepatitis B and its effect on peripheral blood T lymphocyte subsets.Methods 40 cases of patients with chronic hepatitis B were selected from The Fourth People’s Hospital of Qinghai in October 2009 to June 2012,the patients were given the antiviral treatment of adefovir dipivoxil.Before treatment,3 months,6 months and 12 months after treatment,the changes of liver function indicators of alanine transaminase(ALT),aspartate transaminase(AST)and total bilirubin(TBiL),and hepatitis B virus-DNA(HBV-DNA)were recorded;the total effective rate was observed;the peripheral blood T lymphocyte subsets changes was tested and analyzed by flow cytometry.Results The ALT,AST and TBiL of the patients all improved good,and the indicators of ALT,AST and TBiL after 12 months decreased significantly than before treatment,the HBV-DNA testing of the patients recovered negative,the difference was statistically significant (P<0.05 );the total effective rate of hepatitis B patients is 92.5%;the peripheral blood T lymphocyte subsets has no significant improvement in patients after antiviral treatment for 3 months.After the treatment for 6 months and 12 months,the CD4 +T and CD4 +/CD8 +T were significantly higher than those before treatment,there was no significant changes in CD3 +T and CD8 +T before and after treatment.Conclusion Adefovir dipivoxil has a good clinical efficacy in antiviral treatment of chronic hepatitis B,and can significantly improve the patients’liver function,improve peripheral blood T lymphocyte subsets imbalance.
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PURPOSE: Until now, the rejection was diagnosed through a biopsy, but this method of diagnosis reflected the advanced tissue damage of the transplanted organ and contained the innate problem of being invasive. Activation of T lymphocytes, which occurs before the overt tissue damage has a pivotal role in rejection. In relation, our research attempted to evaluate the viability of analyzing the surface antigens of the peripheral blood activated T lymphocytes in mice after skin transplantation as a noninvasive and early diagnostic tool for diagnosis of rejection. METHODS: After the mouse's skin was transplanted, the expression patterns of activated T lymphocyte markers, CD44 and CD45RB were analyzed along with T lymphocyte markers, CD3, CD4, and CD8 using flow cytometry. The skins from the tails of allogeneic Balb/c (H2(d)) mice and syngeneic C57BL/6J mice were transplanted to C57BL/6J (H2(b)) mice as test and control groups, respectively. Peripheral blood, which was sampled from the tail every other day from day 3 to day 15 was stained with anti-CD44 (or CD45RB), anti-CD4 (or CD8) and anti-CD3 monoclonal antibodies simultaneously, and analyzed by 3-color FACS. Repeated ANOVA test and Mann-Whitey test were used to analyze the differences between the expression patterns of peripheral blood T lymphocyte surface antigen in the control and test groups (SPSS 8.0). RESULTS: Rejection occurred only in the test group from day 8 to day 13 (median: day 10). Although the proportions of CD3(+)lymphocytes (CD3(+)%), CD4(+)lymphocytes (CD4(+) %), and CD8 lymphocytes (CD8(+)%) showed no difference between the control and test groups, the total number of peripheral blood lymphocytes and the number of CD3(+)lymphocytes (CD3(+)) and CD8(+)lymphocytes (CD8(+)) decreased more sharply in the control group after day 7. The proportion and the number of CD44 CD3(+)lymphocytes, CD44 CD4(+)lymphocytes, and CD44(+) CD4(+) CD3(+)lymphocytes began to increase after day 7, to peak on day 11, and then to decrease, showing a significant difference from those of the control group. The proportion and number of CD44(+) CD3(+)lymphocytes, in particular, showed the most significant difference among these significant markers. The proportion and number of CD44(+) CD8(+) lymphocytes and CD44(+) CD8(+) CD3(+)lymphocytes showed similar trends to those of CD44(+) CD3(+) or CD44(+) CD4(+), but the differences between the subset proportions in control and test groups were statistically insignificant. No significant difference was observed in any subsets of the CD45RB antigen. CONCLUSION: CD44(+)CD3(+) lymphocytes representing activated T lymphocytes increased significantly compared to the control group during the rejection period of skin transplantation. The analysis of the expression patterns of surface antigen CD44 on peripheral blood T lymphocytes using flow cytometry is sensitive, safe, easily repeatable, and controllable, and, therefore, can be considered a promising tool for the diagnosis of rejection. However, the clear change in CD44 occurred between day 9 and day 13, when rejection was observed grossly. Therefore, it is regarded more useful as a screening test or follow-up indicator rather than as an early diagnostic tool.